Curriculum Vita

Philip K. Hopke

Bayard D. Clarkson Distinguished Professor

Clarkson University

Department of Chemical and Biomolecular Engineering

Potsdam, N.Y. 13699-5708

Telephone: (315) 268-3861

Telefax: (315) 268-4410

E-Mail: hopkepk@clarkson.edu

Education

Trinity College, Hartford, CT, B.S., Chemistry, 1965

Princeton University, M.A., Chemistry, 1967

Princeton University, Ph.D., Chemistry, 1969

Experience

Jan. 2002-present  Bayard D. Clarkson Distinguished Professor, Departments of Chemical and Biomolecular Engineering and Chemistry, Clarkson University

Jan. 2002-present  Director, Center for Air Resources Engineering and Sciences, Clarkson University

      Aug 2008-Aug 2009   Jefferson Science Fellow, U.S. Department of State

      Jan. 2006- July 2008  Visiting Professor, Department of Environmental Engineering and Management, Asian Institute of Technology, Bangkok, Thailand

      Jan. 2003 - Jan. 2010  Adjunct Senior Scientist, Lovelace Respiratory Research Institute

      Jan. 2002 - May 2002 Visiting Professor, Department of Chemical Engineering, University of California at Los Angeles

Jul 2000 - Dec 2001   Robert A. Plane Professor, Departments of Chemical Engineering and Chemistry, Clarkson University (Joint appointment in the Department of Civil and Environmental Engineering)

Jul 1989 - June 2000   Robert A. Plane Professor, Department of Chemistry, Clarkson University (Joint appointment in the Department of Civil and Environmental Engineering)

      Jul 1999-Jul 2000 Chair, Department of Chemistry and Head, Division of Physical and Chemical Sciences, Clarkson University

      Jul 1997-Jun 1999      Dean, The Graduate School, Clarkson University

Feb 1983 - June 1989 Professor of Environmental Chemistry, Institute for Environmental Studies, Department of Civil Engineering, and Department of Nuclear Engineering, University of Illinois

      Aug 1987-Aug 1988   Acting Director, Program on Ancient Technologies and Archaeological Materials, University of Illinois

      Aug 1984 - Jul 1985   Visiting Professor, Farmaceutisch Instituut, Vrije Universiteit Brussel, Brussels, Belgium

Aug 1982 - Feb 1983  Professor of Environmental Chemistry, Institute for Environmental Studies, and Department of Civil Engineering, University of Illinois

      Oct 1979 - Feb 1983   Departmental Affiliate, Nuclear Engineering Program, University of Illinois

Aug 1978 - Aug 1982 Associate Professor of Environmental Chemistry, Institute for Environmental Studies, University of Illinois

      Aug 1981 - Aug 1982 Departmental Affiliate, School of Clinical Medicine, University of Illinois

      Aug 1980 - Aug 1982 Departmental Affiliate, Department of Civil Engineering, University of Illinois

      May 1979 - Aug 1979      Summer Faculty Participant, Lawrence Livermore Laboratory, University of California

June 1975 - Aug 1978      Assistant Professor of Environmental Chemistry, Institute for Environmental Studies, University of Illinois

Aug 1974 - June 1975      Visiting Assistant Professor of Chemistry, University of Illinois

Sept 1970 - June 1975      Assistant Professor of Chemistry, State University College, Fredonia, NY

April 1969 - Aug 1970     Research Associate in Nuclear Chemistry, Massachusetts Institute of Technology

      Jan 1970 - May 1970  Instructor, Metropolitan College of Boston University

      Nov 1969 - Jan 1970  Instructor, Chemistry Department, Massachusetts Institute of Technology

Sept 1965 - Apr 1969       Graduate Student, Princeton University

            1965 - 1967              Research Assistant

            1967 - 1969              AEC Special Fellow in Nuclear Science & Engineering

June 1965 - Sept 1965      Summer Student, Brookhaven National Laboratory

Honors and Awards

2008 Elected as a Fellow of the American Association for Aerosol Research.

2007 Elected as a Fellow of the American Association for the Advancement of Science

2007 Eastern Analytical Symposium Award for Outstanding Achievements in Chemometrics

2006 Elected to membership in the International Statistics Institute

2006 International Aerosol Fellow of the International Aerosol Research Assembly

2004 David Sinclair Award of the American Association for Aerosol Research

1991 Principal Investigator Award in Air Quality Research, Ministry of the Environment, Province of Ontario, Canada. 

1965 Subscription Award, Connecticut Valley Section, American Chemical Society.

Member of the Society of Sigma Xi

Member of Phi Kappa Phi

Professional Society Affiliations

Member, American Association for Aerosol Research; President, 2003-2004, Vice President, 2002-2003; Vice President Elect, 2001-2002; and Member, Board of Directors, 1989-1994.

Member, American Chemical Society and the Division of Nuclear Chemistry and Technology and the Division of Environmental Chemistry

Member, American Institute of Chemical Engineers

Member, American Physical Society and the Division of Nuclear Physics

Member, Air & Waste Management Association and Committee EM-2 (Receptor/Source Apportionment); Secretary of Committee, 1983-1985; Chairman of Committee, 1989-1992.

Fellow, American Association for the Advancement of Science

Member, International Chemometrics Society

Member, Gesellshaft fur Aerosolforschung

Member, International Society of Exposure Science

Member, International Society of Indoor Air Quality and Climate

Biographical Listings

American Men and Women of Science

Who's Who in the Frontiers of Science and Technology

Who's Who in Technology

Who's Who in Science and Engineering

Who’s Who in the East

Who’s Who in the World

Who’s Who in America

Public Service

Member, NRC/NAE U.S. Committee on Energy Futures and Air Pollution in Urban China and the United States, January 2005 to December 2006.

AAAR Representative to International Aerosol Research Assembly, 2004-2008.

President, October 2003 to October 2004, Vice President, October 2002 to October 2003, Vice President Elect, October 2001 to October 2002. American Association for Aerosol Research

Chair, Clean Air Science Advisory Committee, Science Advisory Board, U.S. Environmental Protection Agency, October 2000 - September 2004. Member, Clean Air Science Advisory Committee, Science Advisory Board, U.S. Environmental Protection Agency, October 1995 - September 2000; Chair, Subcommittee on Particulate Matter Monitoring, October 1999-.

Member, Executive Committee, Science Advisory Board, U.S. Environmental Protection Agency, October 2000 to September 2004.

Member, NAS/NRC Committee on Air Quality Management in the United States, March 2001 to January 2004.

Member, NAS/NRC Committee on Research Priorities for Airborne Particulate Matter, January 1998 - December 2004.

Member, Research Strategies Advisory Committee, Science Advisory Board, U.S. Environmental Protection Agency, October 1997 - September 2004.

Member, Air Quality Modeling Subcommittee, Advisory Council on Clean Air Act Compliance Analysis, Science Advisory Board, U.S. Environmental Protection Agency, March 1996 - July 2001.

Member, NAS/NRC Committee on Risk Assessment of Exposure to Radon in Drinking Water, May 1997 to December 1998.

Member, NAS/NRC Committee on the Biological Effects of Ionizing Radiation (BEIR VI), February 1994 - December 1997.

Member, NAS/NRC Committee on Risk Assessment of Hazardous Air Pollutants, August 1991 - January 1994.

Member, NAS/NRC Panel on the Assessment of NIST Programs, January 1991 - December 1993.

Principal Scientist, Radon Research Program, U.S. Department of Energy, Office of Health and Environmental Research, 1987 - 1995.

Member of U.S. Environmental Protection Agency Grants Program Peer Review Panel for Air Chemistry and Physics, May 1980 to December 1987;

Chairman of U.S. Environmental Protection Agency Grant Review Panel for Air Chemistry and Physics, December 1987 to July 1992.

Member, American Chemical Society's Task Force on Air Toxics, August 1989 - December 1991.

Member, NAS/NRC Panel on Radon Dose Extrapolation, October 1989 - July 1991.

Member, NAS/NRC Committee on Advances in Assessing Human Exposure to Airborne Pollutants, January 1988 - December 1990.

Member, Board of Education, Champaign Community Schools Unit District No. 4, April 1978 - November 1981; President of the Board, April 1980 to November 1981.

Secretary, Environmental Advisory Commission, City of Champaign, Illinois, August 1976 to June 1978.

Editorial Activities

Editor, Chemometrics and Intelligent Laboratory Systems, December 1985 to December 1997; 2007- present.

Associate Editor, Air Quality, Atmosphere and Health, 2007-present

Editor-in-Chief, Aerosol Science & Technology, October 1993 - December 2002

Editor, Health Physics, July 1990 to September 1993.

Associate Editor for Reference Data Sets, Chemometrics and Intelligent Laboratory Systems, January 1998 - 2007.

Chairman, Editorial Advisory Board of Elsevier Scientific Software, October 1986 to October 1987; member of the Board, July 1985 to October 1986.

Member, Editorial Board, Atmospheric Environment, 2000 - 2002.

Member, Editorial Advisory Board, Issues in Environmental Science and Technology, 1993 - present.

Member, Editorial Advisory Board, Aerosol Science and Technology, October 1987 to September 1993.

Member, Editorial Review Board, Journal of the Air and Waste Management Association, July 1988 to June 1995.

Consulting

Consultant, Pace University, August 2007 to July 2009

Consultant, St. Lawrence County, July 2007 to October 2007.

Consultant, McDermott, Will, & Emery, May 2007 to present

Consultant, U.S. Department of Justice, November 2005 to present

Consultant, Southwest Clean Air Agency, November 2005 to present.

Consultant, Olson, Bzdok & Howard, P.C., February 2004 to October 2005.

Consultant, R.J. Lee Group, Monroeville, PA, 1987 to present.

Consultant, International Atomic Energy Agency Co-ordinated Research Program of the Application of Nuclear Analytical Methods to Air Pollution, March 1993 - present.

Consultant, GE-EER, Irvine, CA, 2002 - 12/31/2004

Consultant, Detroit Diesel Corporation, July 2004 to March 2005.

Consultant, Gradient Scientific, Cambridge, MA, 2001.

Consultant, Shook, Hardy, & Bacon, Kansas City, MO, 2000

Consultant, SC & A, Inc, McLean, VA, August 1991 - 1998.

Consultant, Atmospheric Environment and Research, Inc., San Ramon, CA, September 1996 to December 1997.

Consultant to Lawrence Livermore National Laboratory, Livermore, CA., September 1976 to October 1982.

Consultant to Environmental Research and Technology, Inc., 1981.

Consultant to Environmental Sciences Research Laboratory Peer Review Panel, U.S. Environmental Protection Agency, Research Triangle Park, N.C., December 1979 to December 1993.

Consultant to the American Iron and Steel Institute, January 1982 to June 1987.

Consultant to Construction Engineering Research Laboratory, Corps of Engineers, U.S. Army, April 1984 to December 1985.

Consultant, Sonoma Technology Inc, Santa Rosa, CA, 1989.

Consultant, CH2M Hill Engineering, Seattle, WA, 1991.

Consultant, Consultec Scientific, Inc, Knoxville, TN, January 1991 - present.

Consultant, Thomson and Nielsen Electronics, Ltd. Ottawa, Ontario, July 1991 - June 1993.

Grants and Contracts

Petroleum Research Fund Type G, Analysis of Environmental Trace Elements by Neutron Activation Analysis, September 1, 1972 to August 31, 1974, $6,000.

Research Corporation, Extranuclear Effects on Nuclear Decay Rates, March 1, 1973 to June 30, 1974, $2,620.

U.S. Environmental Protection Agency, Monitoring to Detect Previously Unrecognized Pollutants in Surface Waters, June 30, 1975 to December 30, 1976, $46,658.

Department of Housing and Urban Development, Feasibility Study to Evaluate INAA and Multivariate Statistical Analysis Techniques to Identify Sources of Lead in Household Dusts, September 15, 1977 to April 15, 1978, $10,000.

Illinois Water Resources Center, Development of a Non-Specific Preconcentration Technique for Trace Multielemental Analysis of Water, October 1, 1977 to September 30, 1979, $15,900.

U.S. Bureau of Mines, Department of the Interior, A Study of the Importance of Airborne Particulate Matter to the Transport of Radon in Mine Atmospheres, with J.J. Stukel, July 1, 1976 to January 31, 1980, $197,838.

U.S. Environmental Protection Agency, Feasibility of Application of Factor Analysis to Source Resolution of RAPS Data, July 1, 1979 to June 30, 1980, $9,991.

U.S. Environmental Protection Agency, The Development of Monitoring Methods to Determine the Presence of Mutagenic Compounds in Chicago Municipal Sewage Sludge, with M.J. Plewa, September 15, 1979 to March 31, 1981, $122,995.

U.S. Bureau of Mines, Department of the Interior, Study of the Environmental Factors Affecting the Transport of Radon Daughters to Uranium Mine Surfaces, with J.J. Stukel, August 27, 1979 to June 30, 1983, $226,958.

U.S. Environmental Protection Agency, Aerosol Mass Apportionment to Sources by Factor Analysis, September 30, 1980 to December 31, 1983, $100,000.

U.S. Environmental Protection Agency, The Development and Application of Factor Analysis to Urban Aerosol Source Resolutions, October 27, 1980 to June 26, 1983, $102,775.

U.S. Environmental Protection Agency, Effects of Surface Properties and Charge on Droplet Collection Efficiency of Submicron Aerosols, with J.J. Stukel and K.H. Leong, November 15, 1980 to November 14, 1983, $211,294.

Illinois Water Resources Center, The Effect of Different Soil Types on the Mutagenic Properties of Waste Water, with M.J. Plewa, March 1982 to June 1983, $15,300.

U.S. Environmental Protection Agency, Planning Study of the Technology for Removal of Radon from Gas Streams, with J.J. Stukel and K.H. Leong, November 15, 1982 to November 14, 1983, $12,005.

U.S. Department of Energy, Atmospheric Chemistry of ²¹⁸Po, August 21, 1983 to December 31, 1985, $117,170.

U.S. Department of Energy, The Resolution of Source Contributions to Environmental Samples, July 1, 1980 to December 31, 1986, $324,168.

U.S. Environmental Protection Agency, Mechanisms for Removal of Radon from Gas Streams, with J.J. Stukel, and K.H. Leong, November 15, 1983 to November 14, 1985, $95,600.

U.S. Environmental Protection Agency, Simultaneous Collection of Submicron Aerosol Particles, Sulfur Dioxide, and Nitric Oxide, with J.J. Stukel and K.H. Leong, November 15, 1983 to November 14, 1987, $185,107.

U.S. Environmental Protection Agency, Removal of Radon from Indoor Air, November 15, 1985 to June 30, 1987, $32,948.

Illinois Department of Energy and Natural Resources, Ambient Air Monitoring of Urbana-Champaign, with D. Gatz, September 21, 1983 to June 30, 1989, $419,000.

Battelle/EPRI, The Feasibility of Using Pattern Recognition Methods to Interpret Scanning Electron Microscopy Data for Identifying Plume Fly Ash, September 1, 1985 to December 31, 1988, $46,000.

National Science Foundation, U.S.-Belgium Cooperative Science: Multivariate Analysis of Scanning Electron Microscopy Data, March 1, 1986 to August 1, 1989, $6,670.

Illinois Department of Energy and Natural Resources, Airborne Fine Particulate Matter (PM-10) in Southeast Chicago, with S. Landsberger, August 21, 1987 to June 30, 1989, $108,

HWRIC, Source Tracing of Heavy Metals in the Rock River through Analysis of Sediments and Biota, with S. Landsberger, July 1, 1987 to June 30, 1988, $58,148.

Radian/EPRI, Process Monitoring of Chiyoda CT-121 FGD System, April 1, 1988 to October 1, 1989, $203,471.

CERL/ATAM, Archaeometric Projects in Support of Corps of Engineers Conservation Programs, with J. Isaacson and S. Wisseman, May 11, 1988 to November 10, 1988, $42,000.

Illinois Environmental Protection Agency, Receptor Modeling Studies of Granite City, Illinois, April 1, 1988 to September 15, 1989, $61,000.

National Science Foundation, Examination of the Mathematical Models Used in Atmospheric Source Apportionment Studies, July 1, 1986 to June 30, 1992, $364,000.

U.S. Department of Energy, Atmospheric Chemistry of ²¹⁸Po, March 1, 1987 to September 31, 1990, $297,414.

U.S. Department of Energy, The Development and Field Testing of a System for Determination of Ultrafine Activity Particle Size Distribution and Working Levels, April 1, 1988 to October 31, 1990, $225,000.

New Jersey Department of Environmental Conservation, Measurement of Concentration and Size Distribution of Radon Decay Products in Homes Using Air Cleaners, July 1, 1989 to July 31, 1992, $142,295.

National Science Foundation, Multivariate Analysis of Arctic Aerosol Compositional Data, with S. Landsberger, May 1989 to October 1991, $53,304.

Aerovironment, Inc., Receptor Modeling for Acidic Species, January 1, 1990 to February 28, 1992, $25,600.

IBM, The Investigation of the Adhesion of Particles to Surfaces, October 23, 1989 to October 31, 1992, $70,171.

National Science Foundation, Examination of the Mathematical Models Used in Atmospheric Source Apportionment Studies, January 1, 1992 to June 30, 1995, $294,200.

Center for Indoor Air Research, Measurement of the Hygroscopicity of the Indoor Aerosol, January 1, 1992 to August 31, 1995, $196,386.

Ontario Ministry of the Environment, Development of Multivariate Analysis Procedures for Ontario Air Quality Data, April 1, 1987 to June 30, 1995, $236,889.

American Water Works Association, Critical Assessment of Exposure to Radon from Showering with Radon-Laden Water, September 15, 1993 to June 30, 1995, $92,530.

Department of Energy, Organization and Operation of the 6th International Symposium on the Natural Radiation Environment (NRE-VI) February 1, 1994 to January 31, 1996, $20,100

Environmental Protection Agency, Organization and Operation of the 6th International Symposium on the Natural Radiation Environment (NRE-VI) May 23, 1994 to August 22, 1995 $20,000

Commission of the European Communities, Sixth International Symposium on the National Radiation Environment (NRE-VI), August 1, 1994 to July 31, 1995, $21,704

Environmental Protection Agency, Studies of the Performance of Room Air Cleaners and Their Optimal Reduction of Dose from Radon Progeny, October 5, 1992 to July 4, 1996, $218,062.

U.S. Department of Energy, Study of the Atmospheric Chemistry of Radon Progeny in Laboratory and Real Indoor Atmospheres, July 1, 1990 to April 30, 1996, $990,050.

National Science Foundation, Division of Polar Programs, Analysis of the Long Term Record of Arctic Airborne Particle Composition, May 1992 to January 31, 1996, $283,158.

Ontario Ministry of the Environment, Multivariate Analysis of Data From the Integrated Atmospheric Network Deposition, July 1, 1994 to September 30 1995, $20,900.

Eastman Kodak and New York State Science and Technology Foundation, Development and Application of Chemometric Methods for Process Control, July 1, 1995 to June 30, 1996, $40,000.

National Science Foundation, Analysis of the Record of Arctic Airborne Particle Compositions, July 1, 1995 to June 30, 1996, $75,000.

International Atomic Energy Agency, Technical Support of CRPs on Sampling and Analysis of Airborne Particles, December 1, 1995 to November 30, 1997, $30,000.

Environmental Protection Agency, Development of Multivariate Receptor Models for the Determination of the Sources of Airborne Pollutants, October 1, 1994 to March 31, 1998, $349,359

National Science Foundation, Examination of the Mathematical Models Used in Atmospheric Source Apportionment Studies, July 1, 1996 to June 30, 1999, $249,279.

Environmental Protection Agency, Technical Support for PM Source Apportionment Using Positive Matrix Factorization, June 22, 1999 to June 15, 2000, $49,226.

New Jersey Department of Environmental Protection, Application of Positive Matrix Factorization to Multiple Data Sets, November 11, 1999 to June 30, 2000, $15,000.

EPRI, Chemometric-Based Identification of Nonaqueous Phase Liquids in the Subsurface at Manufactured Gas Plant Sites, with Susan E. Powers, July 1, 1996 to June 30, 2000, $50,000.

International Atomic Energy Agency, Technical Support for Regional Coordinated Research Program on Air Pollution Monitoring, November 1, 1998 to December 31, 2000, $25,000.

California Air Resources Board via a subcontract from University of California at Davis, Mutivariate Data Analysis of Air Quality Data Developed by Research at UC-Davis and UC-Riverside, December 18, 1998 to December 31, 2000, $148,019.

Unilever Research USA, Inc., Application of Multiway Factorization to Product Characterization Data, April 1, 1998 to February 28, 2001, $216,745.

U.S. Housing and Urban Development, Data Analysis in Support of Tracing the Sources of Lead in Indoor Dusts, December 16, 2000 to March 31, 2001, $20,000.

Environmental Protection Agency, Three-Way PMF Analysis In Baltimore Exposure Data, October 1, 2000 to March 31, 2001, $25,000.

New York State Energy Research and Development Authority, Development and Demonstration of Innovative Ambient Pollutant Monitoring and Ecosystem Impact Evaluation Instrumentation, June 1, 2000 to May 31, 2001, $41,393.

Environmental Protection Agency, Application of PMF to Spatial Data Analysis, June 12, 2001 to December 31, 2001, $40,178.

Cooperative Institute for Arctic Research, Changes in the Concentration and Composition of Anthropogenic and Biogenic Aerosols in the Finnish Arctic, April 18, 2000 to April 17, 2002, $128,000

GE-EER, Combustion Emissions Characterization Study, November 30, 2001- June 30, 2002, $35,000.

Environmental Protection Agency, Contribution of Semivolatile Particulate Matter to Ambient Suspended Fine Particle Mass, with Thomas Holsen, July 18, 1999 to July 17, 2002, $383,570.

Environmental Protection Agency, Development of a Novel Condensation Nuclei Counter and Application to Ultrafine Particle Formation, October 1, 1998 to September 30, 2002, $393,657.

Texas Commission on Environmental Quality, VOC And Historic Auto-GC Analysis, December 1, 2001 to November 31, 2002, $50,814

New York State Energy Research and Development Authority, Monitoring of Particle Size Distributions in Rochester, NY, August 28, 2001 to December 31, 2002, $165,783.

Pennsylvania Department of Environmental Protection, Monitoring Systems for Philadelphia 2002, May 1, 2002 to April 30, 2003, $27,948.

Environmental Protection Agency, Lake Ontario Regional Monitoring, October 1, 2001 to September 31, 2003, $231, 097.

Environmental Protection Agency, Supersite in Houston, TX, subcontract from University of Texas at Austin, January 1, 2000 to December 31, 2003, $195,164.

National Science Foundation, Effects of Pressure and Carrier Gas on Homogeneous Nucleation of Vapors, February 1, 2000 to January 31, 2004, $290,000.

Environmental Protection Agency, Application of PMF to the analysis of the RAPS/RAMS data from St. Louis, MO, September 1, 2001 to March 31, 2004, $35, 671

New York State Energy Research and Development Authority, Particulate Matter Source Modeling/Health Effects Workshop, April 7, 2003 to August 31, 2004, $30,112.

Environmental Protection Agency, Supersite in Baltimore, Md, subcontract from University of Maryland at College Park, January 1, 2000 to December 31, 2004, $372,500.

Environmental Protection Agency, Development of a Relational Database for the Supersite Program, subcontract from the University of Maryland at College Park, January 01, 2002 to December 31, 2004, $280,871.

Environmental Protection Agency, Supersite in New York City, subcontract from SUNY-Albany, January 1, 2000 to December 31, 2004, $95,000.

U.S. Department of Energy, Supersite in Pittsburgh, subcontract from Carnegie Mellon University, January 1, 2001 to December 31, 2004, $160,005.

EPRI, Monitoring of Particle Size Distribution and Cardiac Responses in Rochester, NY, September 1, 2003 to December 31, 2005, $85,650.

International Atomic Energy Agency, Processing Of Regional Data For The Project, Isotopic And Related Techniques To Assess Air Pollution, January 1, 2003 to December 31, 2004, $39,998.

Health Effects Institute, Improving Source Identification of Carbonaceous Ambient Particulate Matter Using Highly Time and Composition Resolved Measurements, March 1, 2004 to February 28, 2005, $64,688.

LADCO, Analyses of Midwest PM-Related Measurements, March 22, 2004 to March 31, 2005, $120,000.

New Jersey Department of Environmental Protection, Application of Advanced Factor Analysis Modeling to Apportion PM_2.5 in New Jersey, April 1, 2004 to March 31, 2005, $25,000.

Environmental Protection Agency, Receptor Modeling of the RTP Study Data, October 1, 2003 to July 31, 2005, $60,000.

New York State Energy Research and Development Authority, Contributions of In-State and Out-of-State Electricity Generation on Air Quality in New York State, with Thomas Holsen, September 24, 1999 to December 31, 2005, $1,143,118.

Environmental Protection Agency, ME Receptor Model Development, April 1, 2004 to December 31, 2005, $126,452.

BWXT Pantex, Determination of Nucleation and Growth Constants, with Don Rasmussen, Subcontract from the University of Texas at Austin, May 7, 2005 to December 31, 2005, $83,459.

Environmental Protection Agency, Management of Core 1 Research Program, EPA PM and Health Research Center at the University of Rochester, June 01, 2002 to May 31, 2006, $658,520.

Environmental Protection Agency, Personal Exposure To Particulate Air Pollution In Childhood Asthma, April 1, 2003 - May 31, 2006, $40,527.

New Jersey Department of Environmental Protection, Application of Trajectory Ensemble Analysis to Locate PM2.5 Sources, June 1, 2005 to June 30, 2006, $40,000.

New Jersey Department of Environmental Protection, Analysis on New Jersey PAMS Data to Identify Major Ozone Precursor Sources, June 6, 2005 to June 30, 2006, $25,000.

California Air Resources Board, Analyses of PM-Related Measurements for the Impacts of Ships, March 10, 2005 to September 10, 2006, $95, 002.

Environmental Protection Agency, Development of Advanced Factor Analysis Methods for Carbonaceous PM Source Identification and Apportionment, October 1, 2003 to September 31, 2006, $450,000.

Environmental Protection Agency, Advancing ATOFMS to a quantitative tool for source apportionment, with Kimberly A. Prather (UCSD), October 1, 2003 to September 31, 2006, $225,000.

New York State Office of Science, Technology, and Academic Research, Environmental Quality Systems Center, January 1, 2002 to December 31, 2006, $1,892,000.

International Atomic Energy Agency, Subcontract to Improved Information About Urban Air Quality Management, January 1, 2005 to December 31, 2006, $20,000.

National Institute of Occupational Safety and Health, Fiber Transport And Deposition In The Respiratory Tract, December 1, 2002 to November 31, 2007, $509,950.

National Science Foundation, New instruments for real-time, high-resolution characterization of nanoparticles in the environment. With S. Dhaniyala, August 1, 2005 to July 31, 2007, $100,000.

Environmental Protection Agency, Rotation Control in ME Receptor Model Development, September 30, 2005 to March 31, 2007, $59,994.

Environmental Protection Agency, University of Rochester PM & Health Center, with Kimberly A. Prather (UCSD), October 1, 2005 to September 30, 2010, $751,847.

Environmental Protection Agency, Formation of Indoor Particles from Indoor VOCs and Ambient Ozone, December 1, 2005 to November 30, 2008, $193,000.

Environmental Protection Agency, PMF Applied to St. Louis RAPS-RAMS Coarse PM Data Base, October 6, 2005 to October 5, 2006, $25, 421.

Environmental Protection Agency, Remote, Real-Time Monitor for Elemental Speciation of Air Particulates, May 1, 2006 to April 30, 2006, $35,728.

New York State Energy Research and Development Authority, Remote, Real-Time Monitor for Elemental Speciation of Air Particulates, May 1, 2006 to April 30, 2006, $54,994.

Environmental Protection Agency, Advanced Data Analysis to Identify and Quantify Local PM 2.5 Sources in St. Louis, January 31, 2007 to January 30, 2008, $56,640.

New York State Energy Research and Development Authority, Ultrafine Particles and Cardiac Responses: Evaluation In a Cardiac Rehabilitation Center, October 17, 2005 - October 16, 2007, $25,812.

Environmental Protection Agency, Ultrafine Particles and Cardiac Responses: Evaluation In a Cardiac Rehabilitation Center, July 1, 2006 to June 30, 2008, $68,422.

Environmental Protection Agency, Chemical Analysis of Fish Tissue for the Great Lakes Fish Monitoring Program, March 6, 2006 to December 31, 2011, $1,074,604.

Environmental Protection Agency, Initial Development of a Semicontinuous Monitor of Particle and Gas Phase Reactive Oxygen Species in the Urban Atmosphere, July 15, 2006 to July 14, 2007, $93,834.

Environmental Protection Agency, Characterization of Benzene and Other Air Toxics in Akwesasne, with A. Rossner (CU) and Angela Benedict-Dunn (SRMT), October 1, 2006 to September 30, 2008, $205,551.

Environmental Protection Agency, Demonstration of an Integrated Energy Recovery Ventilator for Improved Indoor Air Quality and Energy, March 1, 2007 to February 28, 2008, $166,969.

New York State Energy Research and Development Authority, Characterization of Diesel Engine Emissions Using On-Board Instrumentation, June 1, 2007 to May 31, 2008, $99,685.

Environmental Protection Agency, Characterization of the Ambient Air Quality in Syracuse, NY And Identification Of Its Origins, May 1, 2007 to April 30, 2010, $600,000.

Environmental Protection Agency, Effect of Resuspended Aeroallergens on Lung Inflammation in Asthmatic Children, June 1, 2007 to August 31, 2008, $130,000.

Environmental Protection Agency, Human Exposure Synthetic Data, Receptor Model Development, and Evaluation, August 16, 2007 to August 15, 2008, $97,056.

Environmental Protection Agency, Factor Analysis Error Estimation Development and Testing, October 24, 2007 to October 23, 2008, $63,207.00

National Science Foundation, Particle Nucleation Events in the Ohio River Valley, with A. Rossner, P.Marzocca, B. Crimmins, February 1, 2008 to December 31, 2008, $95,000

National Academy of Sciences- National Transportation Board, Characterization of Emissions form Airport Operations, July 1, 2008 to June 30, 2010,

New York State Energy Research and Development Authority, Demonstration of Commercial Wood Pellet Gasification/Combustion System, with T. Holsen, July 1, 2008 to June 30, 2010, $283,261.

New Jersey Department of Environmental Protection, Application of Local Wind and Trajectory Ensemble Analysis to Locate Voc Sources, July 1, 2008 to June 30, 2009, $25000.

Patents

System for Determining Health Risk Due to Radon Progeny and Uses Thereof, Patent No. 5,204,528, April 20, 1993, G.S. Hurst, H.A. Wright and P.K. Hopke.

Books Written

1.         Receptor Modeling in Environmental Chemistry, P.K. Hopke, John Wiley & Sons, Inc., New York (1985).

Books Edited

1.         Atmospheric Aerosol: Source/Air Quality Relationships, E.S. Macias and P.K. Hopke, eds., Symposium Series No. 167, American Chemical Society, Washington, D.C. (1981).

2.         Analytical Aspects of Environmental Chemistry, D.F.S. Natusch and P.K. Hopke, eds., J. Wiley & Sons, Inc., New York (1983).

3.         Receptor Models Applied to Contemporary Pollution Problems, S.L. Dattner and P.K. Hopke, eds., Air Pollution Control Association, Pittsburgh, PA (1983).

4.         Radon and Its Decay Products: Occurrence, Properties and Health Effects, P.K. Hopke, ed., Symposium Series 331, American Chemical Society, Washington, D.C. (1987).

5.         Receptor Modeling for Air Quality Management, P.K. Hopke, ed., Elsevier Science Publishers, Amsterdam, 1991.

Chapters in Books

1.         P.K. Hopke, The Application of Factor Analysis to Urban Aerosol Source Resolution, in Atmospheric Aerosol: Source/Air Quality Relationships, E.S. Macias and P.K. Hopke, eds., Symposium Series No. 167, American Chemical Society, Washington, D.C., 21-49 (1981).

2.         B.A. Roscoe and P.K. Hopke, Analysis of Mineral Phases in Coal Utilizing Factor Analysis, in Atomic & Nuclear Methods in Fossil Energy Research, R.H. Filby, ed., Plenum Press, New York, 163-174 (1982).

3.         P.K. Hopke, The Application of Multivariate Analysis to Environmental Data, in Analytical Aspects of Environmental Chemistry, D.F.S. Natusch and P.K. Hopke, eds., J. Wiley & Sons, Inc., New York, 219-262 (1983).

4.         M.J. Plewa and P.K. Hopke, Mutagens in Municipal Sewage Sludge, in Carcinogens and Mutagens in the Environment, H.F. Stich, ed., Volume III, CRC Press, Inc., Boca Raton, FL, 155-175 (1983).

5.         S.L. Dattner and P.K. Hopke, Receptor Models Applied to Contemporary Pollution Problems: An Introduction, in Receptor Models Applied to Contemporary Pollution Problems, S.L. Dattner and P.K. Hopke, eds., Air Pollution Control Association, Pittsburgh, PA, 1-5 (1983).

6.         P.K. Hopke, K.G. Severin, and S.N. Chang, Application and Verification Studies of Target Transformation Factor Analysis as an Aerosol Receptor Model, in Receptor Models Applied to Contemporary Pollution Problems, S.L. Dattner and P.K. Hopke, eds., Air Pollution Control Association, Pittsburgh, PA, 110-126 (1983).

7.         C.S. Hwang, and P.K. Hopke, Time Series Analysis for Identification of Particle Emission Sources, in Receptor Models Applied to Contemporary Pollution Problems, S.L. Dattner and P.K. Hopke, eds., Air Pollution Control Association, Pittsburgh, PA, 317-336 (1983).

8.         H.C. Wang, J.J. Stukel, K.H. Leong, and P.K. Hopke, Particle Collection by a Fixed Collector Considering the Combined Effects of Inertia and Charge, in Aerosols: Science, Technology, and Industrial Applications of Airborne Particles, B.Y.H. Liu, D.Y.H. Pui and H.J. Fissan, eds., Elsevier Science Publishing Co., New York, 337-340 (1984).

9.         M.D. Cheng and P.K. Hopke, Study of the Use of Linear Programming Methods in Receptor Modeling, in Aerosols: Science, Technology, and Industrial Applications of Airborne Particles, B.Y.H. Liu, D.Y.H. Pui and H.J. Fissan, eds., Elsevier Science Publishing Co., New York, 363-366 (1984).

10.       L.A. Hahn, J.J. Stukel, K.H. Leong and P.K. Hopke, Deposition of Submicron Particles on Rough Walls from Turbulent Air Streams, in Aerosols: Science, Technology, and Industrial Applications of Airborne Particles, B.Y.H. Liu, D.Y.H. Pui and H.J. Fissan, eds., Elsevier Science Publishing Co., New York, 865-868 (1984).

11.       P.K. Hopke, The Quantitative Apportionment of Metals in Air Using Receptor Models, in Toxic Metals in Air, C.I. Davidson and J.O. Nriagu, eds., J. Wiley & Sons, Inc., New York, 173-200 (1986).

12.       M.D. Cheng and P.K. Hopke, Linear Programming Procedure and Regression Diagnostics for Least-Squares Solution Using CMB Receptor Model, in Receptor Methods for Source Apportionment: Real World Issues and Applications, T.G. Pace, ed., Air Pollution Control Association, Pittsburgh, PA, 94-104 (1986).

13.       D. Esse and P.K. Hopke, Levantine Trade in the Early Bronze Age, in Proceedings of the 24th International Archaeometry Symposium, J.S. Olin and N.J. Blackman, eds., Smithsonian Institution Press, Washington, D.C., 327-339 (1986).

14.       P.K. Hopke, K.H. Leong, J.J. Stukel, C. Lewis, and R. Jebackumar, Removal of Rare Gases from Large Volume Airstreams, in Gaseous Effluent Treatment in Nuclear Installations, G. Fraser and F. Luykx, eds., Graham & Trotman, London, 369-376 (1986).

15.       P.K. Hopke, Conceptual Design of a System to Characterize the Radioactive Ultrafine Aerosol, in Indoor Air, Air Pollution Control Association, Pittsburgh, PA, 206-215 (1986).

16.       P.K. Hopke, Radon and Its Decay Products: An Overview, in Radon and Its Decay Products: Occurrence, Properties and Health Effects, P.K. Hopke, ed., Symposium Series 331, American Chemical Society, Washington, D.C., 1-8 (1987).

17.       P.K. Hopke, A Layman's Guide to the Indoor Radon Problem, in Radon and Its Decay Products: Occurrence, Properties and Health Effects, P.K. Hopke, ed., Symposium Series 331, American Chemical Society, Washington, D.C., 572-586 (1987).

18.       L.M. Kulju, K.D. Chu, and P.K. Hopke, The Development of a Mobility Analyzer for Studying the Particle Producing Phenomena Related to Radon Progeny, in Radon and Its Decay Products: Occurrence, Properties and Health Effects, P.K. Hopke, ed., Symposium Series 331, American Chemical Society, Washington, D.C., 357-364 (1987).

19.       R. Bocanegra and P.K. Hopke, The Feasibility of Using Activated Charcoal for Indoor Radon Control, in Radon and Its Decay Products: Occurrence, Properties and Health Effects, P.K. Hopke, ed., Symposium Series 331, American Chemical Society, Washington, D.C., 560-569 (1987).

20.       K.D. Chu, P.K. Hopke, E.O. Knutson, K.W. Tu, and R.F. Holub, The Induction of an Ultrafine Aerosol by Radon Radiolysis, in Radon and Its Decay Products: Occurrence, Properties and Health Effects, P.K. Hopke, ed., Symposium Series 331, American Chemical Society, Washington, D.C., 365-376 (1987).

21.       P.K. Hopke, Environmental Data Acquisition, in Encyclopedia of Physical Science and Technology, Volume 5, Academic Press, New York, 199-209 (1987).

22.       P.K. Hopke, D.S. Kim, R. Lee, and G.S. Casuccio, Use of a Rule-Building Expert System for Classifying Single Particles Based on SEM Analysis, in Measurement of Toxic and Related Air Pollutants, APCA Publication VIP-8, Air Pollution Control Association, Pittsburgh, PA, 496-501 (1987).

23.       P.K. Hopke, W. Wlaschin, S. Landsberger, C. Sweet, and S.J. Vermette, The Source Apportionment of PM10 in South Chicago, in PM-10: Implementation of Standards, C.V. Mathai and D.H. Stonefield, Eds., Air Pollution Control Association, Pittsburgh, PA, pp. 484-494 (1988).

24.       P.K. Hopke, W.S. Williams, H. Maguire, and D. Farris, Study of Two Medieval Enameled Objects by X-Ray Fluorescence, in Archaeological Chemistry IV, Advances in Chemistry Series No. 220, American Chemical Society, Washington, D.C., 233-247 (1989).

25.       P.K. Hopke, Y.D. Adewuyi, G.S. Casuccio, W.J. Mershon and R.J. Lee, The Use of Fractal Dimension to Characterize Individual Airborne Particles, in Measurement of Toxic and Related Air Pollutants, APCA Publication VIP-10, Air Pollution Control Association, Pittsburgh, PA, 548-555 (1988).

26.       Y. Zeng and P.K. Hopke, Three-Mode Factor Analysis: A New Multivariate Method for Analyzing Spatial and Temporal Composition Variation, in Receptor Models in Air Resources Management, J.G. Watson, Ed., Air Pollution Control Association, Pittsburgh, PA, 173-179 (1989).

27.       G.S. Casuccio, A.J. Schwoeble, B.C. Henderson, R.J. Lee, P.K. Hopke, and G.M. Sverdrup, The Use of CCSEM and Microimaging to Study Source/Receptor Relationships, in Receptor Models in Air Resources Management, J.G. Watson, Ed., Air Pollution Control Association, Pittsburgh, PA, 39-58 (1989).

28.       Y. Zeng and P.K. Hopke, Rotation of Factors Produced by Three-Mode Factor Analysis in Receptor Modeling, in Measurement of Toxic and Related Air Pollutants, A&WMA Publication VIP-13, Air & Waste Management Association, Pittsburgh, PA, 875-882 (1989).

29.       C.S. Li, P.K. Hopke, and M. Ramamurthi, An Automated, Semi-Continuous System for Measuring Indoor Radon Progeny Activity-Weighted Size Distributions, d_p: 0.5- 500 nm, in Measurement of Toxic and Related Air Pollutants, A&WMA Publication VIP-17, Air & Waste Management Association, Pittsburgh, PA, 31-37 (1990).

30.       Y. Zeng and P.K. Hopke, Comparison of the Source Locations and their Seasonal Patterns for Sulfur Species in Precipitation and Ambient Particles in Ontario, Canada, in Measurement of Toxic and Related Air Pollutants, A&WMA Publication VIP-17, Air & Waste Management Association, Pittsburgh, PA, 529-535 (1990).

31.       P.K. Hopke, Y. Zeng, and M.D. Cheng, Use of Potential Source Contributions Function to Trace the Origins of Airborne Contaminants, in Computer Techniques in Environmental Studies III, P. Zanetti, ed., Computational Mechanics Publications, Southampton, pp. 175-187 (1990).

32.       P.K. Hopke, M. Ramamurthi, and C.S. Li, Measurement of the Size Distributions of Radon Progeny in Indoor Air, in Aerosols: Science, Industry, Health, and Environment, S. Masuda and K. Takahashi, eds, Vol. 2, Pergamon Press, Ltd, Oxford, 842-847 (1990).

33.       P.K. Hopke, C.S. Li, and M. Ramamurthi, The Effect of Air Cleaning on the Size of the Radioactive Indoor Aerosol, in Aerosols: Science, Industry, Health, and Environment, S. Masuda and K. Takahashi, eds, Vol. 2, Pergamon Press, Ltd, Oxford, 827-832 (1990).

34.       P.K. Hopke, The Application of Supercomputers to Chemometrics; Scientific Computing and Automation (Europe) 1990, E. Karjalainen, ed., Elsevier Science Publishers, Amsterdam, 9-19 (1990).

35.       P.K. Hopke and Y. Mi, Use of a Rule-Building Expert System for Classifying Single Particles Based on SEM Analysis; Scientific Computing and Automation (Europe) 1990, E. Karjalainen, ed., Elsevier Science Publishers, Amsterdam, 179-198 (1990).

36.       P.K. Hopke, G.S. Casuccio, W.J. Mershon, and R.J. Lee, The Use of Fractal Dimension to Characterize Individual Airborne Particles; Scientific Computing and Automation (Europe) 1990, E. Karjalainen, ed., Elsevier Science Publishers, Amsterdam, 173-178 (1990).

37.       P.K. Hopke, Quantitative Determination of Highway Emissions in the Air Using Receptor Models, in Highway Pollution, R.S. Hamilton and R.M. Harrison, Eds., Elsevier Science Publishers, Amsterdam, The Netherlands, 209-259 (1991).

38.       P.K. Hopke, The Initial Atmospheric Behavior of Radon Decay Products, in Indoor Air Pollution, J.G. Kay, Ed., Lewis Publishers, Chelsea, MI, 141-169 (1991).

39.       P.K. Hopke and G.S. Casuccio, Scanning Electron Microscopy, in Receptor Modeling for Air Quality Management, P.K. Hopke, ed., Elsevier Science Publishers, Amsterdam, 149-212 (1991).

40.       P. Wasiolek, P.K. Hopke, N. Montassier, A. Cavallo, K. Gadsby, The Field Measurements of the Activity-Weighted Size Distributions of Radon Decay Products, in Measurement of Toxic and Related Pollutants, A&WMA Publication VIP-21, Air & Waste Management Association, Pittsburgh, PA, 128-133 (1991).

41.       M.D. Cheng, P.K. Hopke, N.K. Wilson, Target Transformation Factor Analysis for Indoor Polynuclear Aromatic Hydrocarbons Collected in Columbus, Ohio, in Measurement of Toxic and Related Pollutants, A&WMA Publication VIP-21, Air & Waste Management Association, Pittsburgh, PA, 621-624 (1991).

42.       Y. Zeng and P.K. Hopke, A New Receptor Model Developed by Modifying a Direct Trilinear Decomposition, in Measurement of Toxic and Related Pollutants, A&WMA Publication VIP-21, Air & Waste Management Association, Pittsburgh, PA, 861-866 (1991).

43.       P.K. Hopke, Factor and Correlation Analysis of Multivariate Environmental Data, in Methods of Environmental Data Analysis, C.N. Hewitt, ed., Elsevier Science Publishers, Amsterdam, 139-180 (1992).

44.       C.S. Li and P.K. Hopke, Measurement of Size Distributions of Indoor Radioactive Aerosol, in Indoor Radon and Lung Cancer: Myth or Reality, Battelle Memorial Press, Columbus, OH, 113-128 (1992).

45.       P.K. Hopke, C.S. Li, and M. Ramamurthi, Air Cleaning and Radon Decay Product Mitigation, in Indoor Radon and Lung Cancer: Myth or Reality, Battelle Memorial Press, Columbus, OH, 479-491 (1992).

46.       S.U. Wisseman and P.K. Hopke, Neutron Activation and Plasma Emission Spectrometric Analysis in Archaeology, British Museum, London England, 67-90 (1992).

47.       N. Montassier, P.K. Hopke, Y. Shi, and P. Wasiolek, Evaluation of the Effectiveness of Several Types of Air Cleaners in Reducing the Hazards of Indoor Radon Decay Products, Measurements of Toxic and Related Air Pollutants, A&WMA Publication, Pittsburgh, PA, 77-82 (1992).

48.       S. Landsberger and P.K. Hopke, Recent Advances and Future Developments in the Application of Nuclear Analytical Methods to Air Pollution Studies, Applications of Isotopes and Radiation in Conservation of the Environment, International Atomic Energy Agency, Vienna, 1992.

49.       P.K. Hopke, W. Li, and S.K. Dua, Hygroscopicity of Consumer Product Aerosols, Proceedings of Indoor Air '93, vol. 4, pp. 49-54 (1993).

50.       T. Riley, P.K. Hopke, R. Martin, and J.W. Porter, The Diffusion of Technological Knowledge: A Case Study in North American Ceramic Analysis, Ancient Technologies and Archaeological Materials, W. Williams and S. Wisseman, eds, Gordon and Breach Science Publishers, 41-58 (1994).

51.       P. K. Hopke, The Mixture Resolution Problem Applied to Airborne Particle Source Apportionment, Chemometrics in Environmental Chemistry, Springer-Verlag, Heidelberg. 47-86 (1995).

52.       P.K. Hopke, T. Raunemaa, V. Datye, K. Kuuspalo, and B. Jensen, Assessment of Exposure to Radon and Its Decay Products From Showering in Radon-Laden Water, Indoor Air An Integrated Approach, 107-110 (1995)

53.       P.K. Hopke, B. Jensen, R. Sextro, M. Xu, and M. Nematollahi, Evaluation of an Electrostatic Air Cleaner for Particle and Radon-Decay Product Removal From Indoor Air, Indoor Air An Integrated Approach, 351-354 (1995).

54.       F. He and P.K. Hopke, Experimental Study of Ion-Induced Nucleation of Volatile Organic Compounds by Radon Decay, in Nucleation and Atmospheric Aerosols 1996, ed by M. Kulmala and P.E. Wagner, Elsevier Science Ltd, Oxford, U.K. 50-53 (1996).

55.       P.K. Hopke, Receptor Modeling for Air Quality Management, in Issues in Environmental Science, R.E. Hester and R.M. Harrison ed., Issue 8, Royal Society of Chemistry, Cambridge, U.K., 95-117 (1997).

56.       L. Hadjiiski and P.K. Hopke, Design of Large Scale Models Based on Multiple Neural Network Approach, in: Smart Engineering Systems: Neural Networks, Fuzzy Logic, Data Mining, and Evolutionary Programming, C.H. Dagli, M. Akay, O. Ersoy, B.R. Fernández, and A. Smith, Eds., Volume 7 of Intelligent Engineering Systems Through Artificial Neural Networks, American Society of Mechanical Engineers, New York, 61-66 (1997).

57.       P.K. Hopke, Development of a Drinking Water Standard for ²²²Rn in the United States, In Radon and Thoron in the Human Environment, A. Katase and M. Shimo ed., 503-505 (1998).

58.       B. Fitzgerald and P.K. Hopke, A Prospective Assessment of ²¹⁰Rn Exposure, In Radon and Thoron in the Human Environment, A. Katase and M. Shimo ed., 28-38 (1998).

59.       P.K. Hopke, Quality Assurance, In: Elemental Analysis of Airborne Particles, S. Landsberger and M. Creatchman,, eds, Gordon & Breach, London, 235-271 (1999).

60.       P.K. Hopke, An Introduction to Receptor Modeling, In: Elemental Analysis of Airborne Particles, S. Landsberger and M. Creatchman, eds., Gordon & Breach, London, 273-315 (1999).

61.       Dynamic State Phase Diagrams for Nucleated Systems, M.P. Anisimov, S.D. Shandakov, V.A. Pinaev, I.I. Shvets, and P.K. Hopke, In: Nucleation and Atmospheric Aerosols, B. Hale, and M. Kulmala, eds., American Institute of Physics, AIP Conference Proceedings 534, pp. 315-318 (2000).

62.       Use of a Turbulent Mixing CNC to Study the Influence of Composition and Vapor Properties on Heterogeneous Nucleation, P.K. Hopke, D.W.Lee, Rashid Mavliev, and Hwa-Chi Wang, In: Nucleation and Atmospheric Aerosols, B. Hale, and M. Kulmala, eds., American Institute of Physics, AIP Conference Proceedings 534, pp.139-142 (2000).

63.       Improvement of the Homogeneous Nucleation Rate Measurements in a Static Diffusion Chamber with Use of a CCD Camera, V. Zdímal, J. Smolík, P.K. Hopke, and J. Matas, In: Nucleation and Atmospheric Aerosols, B. Hale, and M. Kulmala, eds., American Institute of Physics, AIP Conference Proceedings 534, pp. 311-314 (2000).

64.       Source-Receptor Relations in Terplice and Prachatice, J.P. Pinto, R.K. Stevens, R.D. Willis, Y. Mamane, Z. Ramadan, and P.K. Hopke, IN: Teplice Program: Impact of Air Pollution on Human Health, R.J. Šrám, ed., Academia, Prague, pp. 71-79 (2001)

65.       Missing Data, D.B. Rubin, C. Liu, and P.K. Hopke, Chapter VAM023, in Encyclopedia of Environmetrics, Abdel El-Shaarawi and Walter Piegorsch, eds. John Wiley & Sons, Inc., New York, 3 pp. (2001).

66.       Chemical Mass Balance, P.K. Hopke, Chapter VAC017, in Encyclopedia of Environmetrics, Abdel El-Shaarawi and Walter Piegorsch, eds. John Wiley & Sons, Inc., New York, 3 pp. (2001).

67.       Calibration, P.K. Hopke, Chapter VAC001, in Encyclopedia of Environmetrics, Abdel El-Shaarawi and Walter Piegorsch, eds. John Wiley & Sons, Inc., New York, 3 pp. (2001).

68.       Concentration, ambient, P.K. Hopke, Chapter VAC044, in Encyclopedia of Environmetrics, Abdel El-Shaarawi and Walter Piegorsch, eds. John Wiley & Sons, Inc., New York, 2 pp. (2001).

69.       Advances in Monitoring Methods for Airborne Particles, P.K. Hopke, in Aerosols Handbook: Measurements, Dosimetry and Health Effects, L. Ruzer and N. Harley, eds., CRC Press, Inc., Boca Raton, 35-46 (2004).

70.       A Preliminary Investigation into the Possible Emission Sources for Atmospheric Mercury Found in the Lake Champlain Basin, N. Gao, N.G. Armatas, B. Puchalski, P.K. Hopke, and R. Poirot, in Lake Champlain: Partnerships and Research in the New Millennium, T.O. Manley, P.L. Manley, and T.B. Mihuc, eds. Springer-Verlag, New York (2004).

71.       Nucleation Rate Surface Construction for Water Vapor. M.P. Anisimov, L. Anisimova, P.K. Hopke. In: Nonequilibrium Processes. Plasma, Aerosols, and Atmospheric Phenomena. Volume 2. Eds by G.D. Roy, S. M. Frolov, and A.M. Sterik. Torus Press. Moscow. 260-266 (2005).

72.       Some General Requirements for Vapor Nucleation Rate Experiments. M.P. Anisimov and P.K. Hopke. In: Nonequilibrium Processes. Plasma, Aerosols, and Atmospheric Phenomena. Volume 2. Eds by G.D. Roy, S. M. Frolov, and A.M. Sterik. Torus Press. Moscow. 267-275 (2005).

73.       Identification, Resolution and Apportionment of Contamination Sources, R. Tauler, P. Paatero, R.C. Henry, C. Spiegelman, E.S. Park, R.L. Poirot, M. Viana, X. Querol, P.K. Hopke, in Developments in Integrated Environmental Assessment, Volume 3, Edited by: A.J. Jakeman, A.A. Voinov, A.E. Rizzoli and S.H. Chen, Elsevier Science, Amsterdam, pp. 269-284 (2008).

Journal Articles

1.         Decay of Tb¹⁵⁷, R. A. Naumann and P. K. Hopke, Phys. Rev.160, 1035-1038 (1967).

2.         Decay of Ho¹⁶³, P. K. Hopke, J. S. Evans and R. A. Naumann, Phys. Rev. 171, 1290-        1292 (1968).

3.         Spin of the 1029-keV Level in Hg²⁰⁰, P. K. Hopke, R. A. Naumann and E. H. Spejewski, Phys. Rev. 177, 1802-1805 (1969).

4.         Decay of Pt¹⁹³, P. K. Hopke and R. A. Naumann, Phys. Rev. 185, 1565-1567 (1969).

5.         Level Structure of Te^{116,118,120,122}, E. H. Spejewski, P. K. Hopke and F. W. Loeser, Jr., Phys. Rev.186, 1270-1279 (1969).

6.         E3 Isomer in Ag¹⁰⁵, P. K. Hopke, R. A. Naumann, E. H. Spejewski and A. T. Strigachev, Phys. Rev. 187, 1704-1708 (1969).

7.         Levels in Bi²⁰³, Bi²⁰⁵ and Bi²⁰⁷, P. K. Hopke, R. A. Naumann and E. H. Spejewski, Phys. Rev.187, 1709-1721 (1969).

8.         Levels in ^119,121,123Te, E. H. Spejewski, P. K. Hopke and F. W. Loeser, Jr., Nuclear Physics Al46, 182-192 (1970).

9.         Decay of ²⁰⁵At, P. K. Hopke, R. A. Naumann and E. H. Spejewski, Nuclear Physics, A149,63-64 (1970).

10.       Isotope Separator On-Line at the Princeton-Pennsylvania Accelerator, E. H. Spejewski, R. A. Naumann, F. W. Loeser, Jr., H. Hübel and P. K. Hopke, Nucl. Instr. Methods 84, 237-243 (1970).

11.       The Isometric Transitions in ^179m2Hf, H. Hübel, R. A. Naumann and P. K. Hopke, Phys. Rev. C2, 1447-1451 (1970).

12.       Half-Life Variations of ¹³¹I Samples, W. H. Zoller, P. K. Hopke, J. L. Fasching, E. S. Macias and W. B. Walters, Phys. Rev. C3, 1699-1701 (1971).

13.       ¹⁹³Pt L-Electron Capture Half-Life, P. K. Hopke and R. A. Naumann, Phys. Rev. C4, 606 (1971).

14.       Identification and Characterization of ^134mI, C. D. Coryell, H. N. Erten, P. K. Hopke, W. B. Walters, R. Dams and H. C. Griffin, Nuclear Physics A179, 689-700 (1972).

15.       The Decay of ¹⁹⁵Pb and ¹⁹⁷Pb, P. K. Hopke, H. Hubel, R. A. Naumann, E. H. Spejewski, A. T. Strigachev, Nuclear Physics A184, 497-506 (1972).

16.       The Radioactive Decay of ^130mI, ^130gI and ¹³⁰Cs to levels in ¹³⁰Xe, P. K. Hopke,  A. G. Jones, W. B. Walters, A. Prindle and R. A. Meyer, Phys. Rev. C8, 745-756 (1973).

17.       Anomalous Arsenic Concentrations in Chautauqua Lake, S.A. Lis and P.K. Hopke, Environmental Letters 5:45-51 (1973).

18.       Extranuclear Effects on Nuclear Decay Rates, P. K. Hopke, J. Chem. Ed. 51, 517-519 (1974).

19.       Arsenic Concentrations of Household Laundry Products, V. Colasanti and P.K. Hopke, Radiochem. Radioanal. Letters 18:123-128 (1974).

20.       Arsenic Concentrations and Distributions in Chautauqua Lake Sediments, D.F. Ruppert, P.K. Hopke, P.R. Clute, W.J. Metzger and D.J. Crowley, J. Radioanal. Chem. 22:159-169 (1974).

21.       Effects of the Shutdown of a Nuclear Fuel Reprocessing Plant, B.A. Bolton, M.A. Salerno, and P.K. Hopke, J. Radioanal. Chem. 23:189-194 (1974).

22.       Spectrophotometric Determination of Nitrate Ion in Fresh Waters, R.A. Peterson, M.M. Metro, and P.K. Hopke, Int. J. Env. Anal. Chem. 3:185-190 (1974).

23.       Radioactivity in Natural Waters from a Nuclear Fuels Reprocessing Plant, D.F. Ruppert, G.W. Pilgrim, and P.K. Hopke, Int. J. Env. Anal. Chem. 4:65-74 (1975).

24.       Gamma Ray Tables for Neutron, Fast Neutron, and Photon Activation Analysis, Part I, S.A. Lis, P.K. Hopke, and J.L. Fasching, J. Radioanal. Chem. 24:125-247 (1975).

25.       Gamma Ray Tables for Neutron, Fast Neutron, and Photon Activation Analysis, Part II, S.A. Lis, P.K. Hopke, and J.L. Fasching, J. Radioanal. Chem. 25:303-428 (1975).

26.       Dynamics of Diquat in a Model Eco-System, B. Shaw and P.K. Hopke, Environmental Letters 8:325-335 (1975).

27.       The Use of Instrumental Neutron Activation Analysis for the Determination of Arsenic Concentrations in Poultry, B.A. Bolton and P.K. Hopke, J. Radioanal. Chem. 25:299-302 (1975).

28.       Hindered Beta Decay of ⁹⁵Nb^m and the Decay Sequence ⁹⁵Zr ->⁹⁵Nb^{m + g} ->⁹⁵Mo, P. K. Hopke and R. A. Meyer, Phys. Rev. C13, 434-436 (1976).

29.       Geochemical Profile of Chautauqua Lake Sediments, P.K. Hopke, D.G. Ruppert, P.R. Clute, W.J. Metzger, and D.J. Crowley, J. Radioanal. Chem. 29:39-59 (1976).

30.       Application of Multivariate Analysis to the Interpretation of the Chemical and Physical Analysis of Lake Sediments, P.K. Hopke, J. Environ. Sci. Health A11:367-383 (1976).

31.       The Use of Multivariate Analysis to Identify Sources of Selected Elements in the Boston Urban Aerosol, P.K. Hopke, E.S. Gladney, G.E. Gordon, W.H. Zoller, and A.G. Jones, Atmospheric Environ. 10:1015-1025 (1976).

32.       Evaluation of Preconcentration Methods for Trace Elemental Analysis of Natural Waters, M.M. Ulrich and P.K. Hopke, Research/Development 28(1):34-40 (1977).

33.       A Versatile and Comprehensive Analysis Code for Automated Reduction of Gamma-Ray Spectral Data, J.P. Maney, J.L. Fasching, and P.K. Hopke, Comp. & Chem. 1:257-264 (1977).

34.       Multiparticle Configurations in the Odd-Neutron Nuclei ⁶¹Ni and ⁶⁷Zn Populated by Decay of ⁶¹Cu, ⁶⁷Cu and ⁶⁷Ga, R. A. Meyer, A. L. Prindle, W. A. Myers, P. K. Hopke, D. Dieterly and J. E. Koops, Physical Review C17, 1822-1831 (1978).

35.       The Paredon, Mexico, Obsidian Source and Early Formative Exchange, T.H. Charlton, D.C. Grove, and P.K. Hopke, Science 201:807-809 (1978).

36.       The Reduction of Airborne Radon Daughter Concentration by Plate-Out on an Air-Mixing Fan, R.F. Holub, R.F. Droullard, W.L. Ho, P.K. Hopke, R. Parsley, and J.J. Stukel, Health Phys. 36:497-504 (1979).

37.       Multielemental Characterization of Urban Roadway Dust, P.K. Hopke, R.E. Lamb and D.F.S. Natusch, Environ. Sci. Technol. 14:164-172 (1980).

38.       Source Identification and Resolution through Application of Factor and Cluster Analysis, P.K. Hopke, Annals of N.Y. Academy of Sciences 338:103-115 (1980).

39.       A Quantitative Determination of Sources in the Boston Urban Aerosol, D.J. Alpert and P.K. Hopke, Atmospheric Environ. 14:1137-1146 (1980).

40.       Estimation of the Weight-Dependent Probability of Detecting a Mutagen with the Ames Assay, J.B. Johnston, and P.K. Hopke, Environ. Mutagenesis 2:419-424 (1980).

41.       Determination of the Sources of Toxic Elements in Environmental Particles Using Microscopic and Statistical Analysis Techniques, R.W. Linton, M.E. Farmer, P.K. Hopke, and D.F.S. Natusch, Environ. Int. 4:453-461 (1980).

42.       A Determination of the Sources of Airborne Particles Collected During the Regional Air Pollution Study, D.J. Alpert and P.K. Hopke, Atmospheric Environ. 15:675-687 (1981).

43.       The Effects of Trace Gases and Water Vapor on the Diffusion Coefficient of Po-218, G.J. Frey, P.K. Hopke and J.J. Stukel, Science 211:480-481 (1981).

44.       Comparison of Weighted and Unweighted Target Transformation Rotations in Factor Analysis, B.A. Roscoe and P.K. Hopke, Comp. & Chem. 5:1-7 (1981).

45.       Trace Multielement Analysis Using High-Flux Fast-Neutron Activation, R.E. Williams, P.K. Hopke, and R.A. Meyer, J. Radioanal. Chem. 63:187-189 (1981).

46.       Error Estimation of Factor Loadings and Scores Obtained with Target Transformation Factor Analysis, B.A. Roscoe and P.K. Hopke, Anal. Chim. Acta 132:89-97 (1981).

47.       The Attachment of RaA(Po-218) to Monodisperse Aerosol, W.L. Ho, P.K. Hopke, and J.J. Stukel, Atmospheric Environ. 16:825-836 (1982).

48.       Identification of Noise in Linear Data Sets by Factor Analysis, B.A. Roscoe and P.K. Hopke, J. Radioanal. Chem. 70:483-495 (1982).

49.       Multitechnique Screening of Chicago Municipal Sewage Sludge for Mutagenic Activity, P.K. Hopke, M.J. Plewa, J.B. Johnston, D. Weaver, S.B. Wood, R.A. Larson, and T. Hinesly, Environ. Sci. Technol. 16:140-147 (1982).

50.       Analysis of Fly Ash Produced from Combustion of Refuse Derived Fuel and Coal Mixtures, D.R. Taylor, M.A. Tompkins, S.E. Kriton, T. Mauney, D.F.S. Natusch, and P.K. Hopke, Environ. Sci. Technol. 16:148-154 (1982).

51.       An Improved Constant Output Atomizer, K.H. Leong, H.C. Wang, J.J. Stukel, and P.K. Hopke, Amer. Ind. Hygiene Assoc. J. 43:135-136 (1982).

52.       The Application of Factor Analysis to Source Apportionment of Aerosol Mass, C.K. Liu, B.A. Roscoe, K.G. Severin, and P.K. Hopke, Am. Ind. Hyg. Assoc. J. 43:314-318 (1982).

53.       The Use of Principal Component Factor Analysis to Interpret Particulate Compositional Data Sets, B.A. Roscoe, P.K. Hopke, S.L. Dattner, and J.M. Jenks, J. Air Pollution Control Assoc. 32:637-642 (1982).

54.       Limits in Charged Particle Collection by Charged Drops, K.H. Leong, J.J. Stukel, and P.K. Hopke, Environ. Sci. Technol. 16:384-387 (1982).

55.       Procedures for Multielemental Analysis using High-Flux Fast Neutron Activation, R.E. Williams, P.K. Hopke, and R.A. Meyer, J. Radioanal. Chem. 72:183-194 (1982).

56.       Calibration of an Autoranging Condensation Nuclei Counter, H.C. Wang, K.H. Leong, J.J. Stukel, and P.K. Hopke, Atmospheric Environ. 16:2999-3001 (1982).

57.       Radiolytic Condensation Nuclei in Aerosol Neutralizers, K.H. Leong, P.K. Hopke, J.J. Stukel, and H.C. Wang, J. Aerosol Sci. 14:23-27 (1983).

58.       Receptor Models Applied to Contemporary Pollution Problems - A Conference Summary, S.L. Dattner and P.K. Hopke, J. Air Pollution Control Assoc. 33:302-303 (1983).

59.       Factors Affecting the Collision of Aerosol Particles with Small Water Drops, K.H. Leong, K.V. Beard, J.J. Stukel, and P.K. Hopke, Aerosol Sci. Technol. 2:341-349 (1983).

60.       Evaporative Mass Losses From Particle Samples, K.H. Leong, P.K. Hopke, and J.J. Stukel, J. Aerosol Sci. 14:611-613 (1983).

61.       FANTASIA - A Program for Target Transformation Factor Analysis to Apportion Sources in Environmental Samples, P.K. Hopke, D.J. Alpert, and B.A. Roscoe, Comp. & Chem. 7:149-155 (1983).

62.       Collection of Hydrophilic and Hydrophobic Charged Submicron Particles by Charged Water Droplets, H.C. Wang, K.H. Leong, J.J. Stukel, and P.K. Hopke, J. Aerosol Sci. 14:703-712 (1983).

63.       The Effects of Thermophoresis and Diffusiophoresis on the Collection of Charged Submicron Particles by Charged Droplets, H.C. Wang, K.H. Leong, J.J. Stukel, and P.K. Hopke, Atmospheric Environ. 17:2533-2537 (1983).

64.       The Use of Factor Analysis in Source Determination of Particulate Emissions, K.G. Severin, B.A. Roscoe and P.K. Hopke, Particulate Sci. Technol. 1:183-192 (1983).

65.       Comparison of R- and Q-Mode Factor Analysis for Aerosol Mass Apportionment, C.S. Hwang, K.G. Severin, and P.K. Hopke, Atmospheric Environ. 18:345-352 (1984).

66.       Turbulent Air Flow over Rough Walls: I. Mean Flow Parameters, J.J. Stukel, P.K. Hopke, and K. Nourmohammadi, J. Fluids Eng. 106:405-409 (1984).

67.       Turbulent Air Flow over Rough Walls: II. Turbulence Flow Parameters, K. Nourmohammadi, P.K. Hopke, and J.J. Stukel, J. Fluids Eng. 107:55-60 (1985).

68.       Interlaboratory Comparison of Source Apportionment Procedures: Results for Simulated Data Sets, L.A. Currie, R.W. Gerlach, C.W. Lewis, W.D. Balfour, J.A. Cooper, S.L. Dattner, R.T. DeCesar, G.E. Gordon, S.L. Heisler, P.K. Hopke, J.J. Shah, G.D. Thurston, and H.J. Williamson, Atmospheric Environ. 18:1517-1537 (1984).

69.       Interlaboratory Comparison of Receptor Model Results for Houston Aerosol, T.G. Dzubay, R.K. Stevens, W.D. Balfour, H.J. Williamson, J.A. Cooper, J.E. Core, R.T. DeCesar, E.R. Crutcher, S.L. Dattner, B.L. Davis, S.L. Heisler, J.J. Shah, P.K. Hopke, and D.L. Johnson, Atmospheric Environ. 18:1555-1566 (1984).

70.       Review of Receptor Model Fundamentals, R.C. Henry, C.W. Lewis, P.K. Hopke, and H.J. Williamson, Atmospheric Environ. 18:1507-1515 (1984).

71.       Chemical and Physical Analyses of Houston Aerosol for Interlaboratory Comparison of Source Apportionment Procedures, D.L. Johnson, B.L. Davis, T.G. Dzubay, E.R. Crutcher, W.J. Courtney, J.M. Jaklevic, A.C. Thompson, and P.K. Hopke, Atmospheric Environ. 18:1539-1553 (1984).

72.       Implications of Incomplete Sampling on a Statistical Form of the Ambient Air Quality Standard for Particulate Matter, J.E. Davidson and P.K. Hopke, Environ. Sci. Technol. 18:571-580 (1984).

73.       Comparison of the Target Transformation Factor Analysis of Coal Composition Data with X-Ray Diffraction Data, B.A. Roscoe, C.Y. Chen, and P.K. Hopke, Anal. Chim. Acta 160:121-134 (1984).

74.       Comparison of the Mutagenicity of Sewage Sludges, P.K. Hopke, M.J. Plewa, P.L. Stapleton, and D.L. Weaver, Environ. Sci. Technol. 18:909-916 (1984).

75.       Environmental Neutralization of Po-218, S.D. Goldstein and P.K. Hopke, Environ. Sci. Technol. 19:146-150 (1985).

76.       Turbulent Deposition of Submicron Particles on Rough Walls, L.A. Hahn, J.J. Stukel, K.H. Leong, and P.K. Hopke, J. Aerosol Sci. 16:81-86 (1985).

77.       Chemometrics and Distribution Software, D.L. Massart and P.K. Hopke, J. Chem. Inf. Comp. Sci. 25:308-313 (1985).

78.       Investigation on the Use of Chemical Mass Balance Receptor Model: Numerical Computations, M.D. Cheng and P.K. Hopke, Chemom. Intel. Lab Syst. 1:33-44 (1986).

79.       The Solubility of Radon in Selected Perfluorocarbon Compounds and Water, C. Lewis, P.K. Hopke, and J.J. Stukel, Ind. Eng. Chem. Res. 26:356-359 (1987).

80.       Multivariate Analysis of CCSEM Auto Emission Data, D.S. Kim, P.K. Hopke, D.L. Massart, L. Kaufman, and G.S. Casuccio, Sci. Total Environ. 59:141-155 (1987).

81.       Comparison of Rule-Building Expert Systems with Pattern Recognition for the Classification of Analytical Data, M.-P. Derde, L. Buydens, C. Guns, D.L. Massart, and P.K. Hopke, Anal. Chem. 59:1868-1871 (1987).

82.       The Interpretation of Multielemental INAA Data Using Pattern Recognition Methods, P.K. Hopke, R.C. Martin and M.A. Evins, J. Radioanal. Nucl. Chem. 112:215-222 (1987).

83.       Multielemental and Multivariate Analysis of Italian Terra Sigillata in the World Heritage Museum at University of Illinois at Urbana-Champaign, S. Wisseman, P. Hopke, and E. Schindler-Kaudelka, Archaeomaterials 1:101-117 (1987).

84.       Calibration of a Cyclone Separator for Atmospheric Sampling, S. Dharmavaram and P.K. Hopke, Sci. Total Environ. 65:261-266 (1987).

85.       Reduction of Mutagenicity of Municipal Wastewaters by Land Treatment, P.K. Hopke, M.J. Plewa, P. Stapleton, Sci. Total Environ. 66:192-202 (1987).

86.       v S.N. Chang, P.K. Hopke, G.E. Gordon, and S.W. Rheingrover, Aerosol Sci. Technol. 8:63-80 (1988).

87.       Evaluation of the Expert System Shells EX-TRAN and TIMM as Rule-Building Tools for Classification Purposes, L. Buydens, D.L. Massart, and P.K. Hopke, Chemom. Intel. Lab. Syst. 3:199-204 (1988).

88.       Neutralization Kinetics for Polonium-218, K.D. Chu and P.K. Hopke, Environ. Sci. Technol. 22:711-717 (1988).

89.       Using a Parallel Computer System for Statistical Resampling Methods, L. Kaufman, P.K. Hopke, and P.J. Rousseeuw, Computational Statistics Quarterly 2:129-141 (1988).

90.       A Simple Methodology for the Determination of Back-Trajectories, S. Dharmavaram and P.K. Hopke, J. Air Pollution Control Assoc. 38:812-813 (1988).

91.       Investigation of the Geographical Distribution of Female Cancer Patterns in Belgium Using Pattern Recognition Techniques, A. Thielemans, P.K. Hopke, P. De Quint, A.M. Depoorter, G. Thiers, and D.L. Massart, Int. J. Epidemiol. 17:724-731 (1988).

92.       The Classification of Individual Particles Based on Computer-Controlled Scanning Electron Microscopy Data, D.S. Kim and P.K. Hopke, Aerosol Sci. Technol. 9:133-151 (1988).

93.       Source Apportionment of the El Paso Aerosol by Particle Class Balance Analysis, D. Kim and P.K. Hopke, Aerosol Sci. Technol. 9:221-235 (1988).

94.       Target Transformation Factor Analysis as an Aerosol Mass Apportionment Method: A Review and Sensitivity Analysis, P.K. Hopke, Atmospheric Environ. 22:1777-1792 (1988).

95.       The Effects of Measurement Errors, Collinearity and Their Interactions on Aerosol Source Apportionment Models, M.D. Cheng, P.K. Hopke, and D. Jennings, Chemom. Intel. Lab. Syst. 4:239-250 (1988).

96.       Radon Adsorption on Activated Carbon and the Effect on Some Airborne Contaminants, R. Bocanegra and P.K. Hopke, Sci. Total Environ. 76:193-202 (1988).

97.       The Initial Behavior of ²¹⁸Po in Indoor Air, P.K. Hopke, K.D. Chu, L.M. Kulju, and M. Ramamurthi, Radiat. Prot. Dosim. 24:207-210 (1988).

98.       Analysis of the Genotoxicity of Municipal Sewage Sludge with Sister Chromatid Exchange in Cultured Human Lymphocytes, S. Engl, M.J. Plewa, and P.K. Hopke, Water, Air & Soil Pollution 42:117-128 (1988).

99.       Comparison of Particles Taken from the ESP and Plume of a Coal-Fired Power Plant, D.S. Kim, P.K. Hopke, G.S. Casuccio, R.J. Lee, S.E. Miller, G.M. Sverdrup, and R.W. Garber, Atmospheric Environ. 23:81-84 (1989).

100.     On Improving the Validity of Wire Screen "Unattached" Fraction Radon Daughter Measurements, M. Ramamurthi and P.K. Hopke, Health Phys. 56:189-194 (1989).

101.     Theoretical Evaluation of Indoor Radon Control Using a Carbon Adsorption System, R. Bocanegra and P.K. Hopke, J. Air Pollution Control Assoc. 39:305-309 (1989).

102.     Identification of Markers for Chemical Mass Balance Receptor Model, M.D. Cheng and P.K. Hopke, Atmospheric Environ. 23:1373-1384 (1989).

103.     A Study on the Sources of Acid Precipitation in Ontario, Canada, Y. Zeng and P. Hopke, Atmospheric Environ. 23:1499-1509 (1989).

104.     Target Transformation Factor Analysis, P.K. Hopke, Chemom. Intel. Lab Syst. 6:7-19 (1989).

105.     Use of Electrostatic Collection of ²¹⁸Po for Measuring Rn, P.K. Hopke, Health Phys. 57:39-42 (1989).

106.     The Use of Constrained Least-Squares to Solve the Chemical Mass Balance Problem, D. Wang and P. Hopke, Atmospheric Environ. 23:2143-2150 (1989).

107.     Environmental Data Management, P.K. Hopke and D.L. Massart, Codata Bulletin, International Council of Scientific Unions, Committee on Data for Science and Technology 21(1-2):188-217 (1989)

108.     The Initial Behavior of ²¹⁸Po in Indoor Air, P.K. Hopke, Environ. Int. 15:299-308 (1989).

109.     Simulation Studies of Reconstruction Algorithms for the Determination of Optimum Operating Parameters and Resolution of Graded Screen Array Systems (Non-Conventional Diffusion Batteries), M. Ramamurthi and P.K. Hopke, Aerosol Sci. Technol. 12:700-710 (1990).

110.     Methodological Study Applying Three-Mode Factor Analysis to Three-Way Chemical Data Sets, Y. Zeng and P.K. Hopke, Chemom. Intel. Lab. Syst. 7:237-250 (1990).

111.     Assessment of Wire and Tube Penetration Theories Using A ²¹⁸PoO_x Cluster Aerosol, M. Ramamurthi, R. Strydom and P.K. Hopke, J. Aerosol Sci. 21:203-211 (1990).

112.     A Measurement System for Rn Decay Product Lung Deposition Based on Respiratory Models, P.K. Hopke, M. Ramamurthi and E.O. Knutson, Health Phys. 58:291-295 (1990).

113.     Size Distribution Measurements of Ultrafine Aerosols, d_p > 1.8 nm, Formed by Radiolysis in a DMA Aerosol Neutralizer, W. Winklmayr, M. Ramamurthi, R. Strydom, and P.K. Hopke, Aerosol Sci. Technol. 13:394-398 (1990).

114.     The Use of Sampling to Cluster Large Data Sets, P.K. Hopke and L. Kaufman, Chemom. Intel. Lab. Syst. 8:195-204 (1990).

115.     Interacting Boson Fermion Model Description for the Levels of Germanium - 71 Populated in the Beta Decay of 65.30 h Arsenic - 71, R.A. Meyer, R.J. Nagle, S. Brant, E. Friez, V. Paar, and P.K. Hopke, Phys. Rev. C41:686-696 (1990).

116.     Particle Class Balance for Apportioning Aerosol Mass with Size Segregation Scheme, D.S. Kim and P.K. Hopke, J. Korean Soc. Environ. Eng. 12:9-19 (1990).

117.     An Automated, Semi-Continuous System for Measuring Indoor Radon Progeny Activity-Weighted Size Distributions, d_p: 0.5-500 nm, M. Ramamurthi and P.K. Hopke, Aerosol Sci. Technol. 14:82-92 (1991).

118.     Determination of Heavy Metal Concentrations in the Rock River Through the Analysis of Sediments, B. Golchert, S. Landsberger, P.K. Hopke, J. Radioanal Nucl. Chem. 148:319-337, (1991).

119.     An Introduction to Receptor Modeling, P.K. Hopke, Chemom. Intel. Lab. Syst. 10:21-43, (1991).

120.     Source Apportionment With Site Specific Source Profiles, D. M. Glover, P. K. Hopke, S.J. Vermette, S. Landsberger and D. R. D'Auben, J. Air Waste Manage. Assoc. 41:294-305 (1991).

121.     The Study of Neutralization of Po-218 Ions by Small Ion Recombination in O₂, Ar and N₂, B. Shi and P.K. Hopke, Health Phys. 61:209-214 (1991).

122.     Radon and Radon Progeny Measurements, P.K. Hopke and P. Wasiolek, Trends Anal. Chem. 10:243-249 (1991).

123.     Distribution Characteristics of Trace Elements and Ionic Species of Aerosol Collected at Canadian High Arctic, M.D. Cheng, P.K. Hopke, S. Landsberger, and L.A. Barrie, Atmospheric Environ. 25A:2903-2909 (1991).

124.     The Efficacy of Air Cleaners in Controlling Indoor Radon Decay Products, C.S. Li and P.K. Hopke, Health Phys. 61:785-797 (1991).

125.     Characterization of Radon Decay Products in a Domestic Environment, C.S. Li and P.K. Hopke, Indoor Air 1:539-561 (1991).

126.     Measurement of the Effect of SO₂ on the Polonium-218 Ion Mobility Spectrum by Alpha-Track Detection, S.C. Yoon, W.H. Marlow, and P.K. Hopke, Health Phys. 62:51-57 (1992).

127.     Elemental Source Signatures of Aerosols from the Canadian High Arctic, S. Landsberger, V. Vermette, D. Stuenkel, P.K. Hopke, M.D. Cheng and L.A. Barrie, Environ. Pollution 75:181-187 (1992).

128.     A New Receptor Model: Direct Trilinear Decomposition Followed by a Matrix Reconstruction, Y. Zeng and P.K. Hopke, J. Chemom. 6:65-83 (1992).

129.     Inspiratory Deposition of Ultrafine Particles in Human Nasal Replicate Casts, D.L. Swift, N. Montassier, P.K. Hopke, K. Karpen-Hayes, Y-S. Cheng, Y.F. Su, H.C. Yeh, and J.C. Strong, J. Aerosol Sci. 23:65-72 (1992).

130.     Nanogram Determination of Indium Using Epithermal Neutrons and Its Application in Potential Source Contribution Function of Airborne Particulate Matter in the Arctic Aerosol, S. Landsberger, P.K. Hopke and M.D. Cheng, Nuclear Sci. Eng. 110:79-83 (1992)

131.     Some Thoughts on the "Unattached" Fraction of Radon Decay Products, P.K. Hopke, Health Phys. 63 2:209-212 (1992).

132.     Air Filtration and Radon Decay Product Mitigation, C.S. Li, P.K. Hopke, Indoor Air 2:84-100 (1992).

133.     The Application of Three-Mode Factor Analysis (TMFA) to Receptor Modeling of SCENES Particle Data, Y. Zeng and P.K. Hopke, Atmospheric Environ. 26A: 1701-1711 (1992).

134.     A System to Measure the Hygroscopicity of Aerosol Particles, W. Li, N. Montassier and P.K. Hopke, Aerosol Sci. Technol. 17:25-35 (1992).

135.     Exploration of Multivariate Chemical Data by Projection Pursuit, D.M. Glover and P.K. Hopke, Chemom. Intel. Lab. Syst. 16:45-59 (1992).

136.     Assessment of Exposure to Radon Decay Products in Realistic Living Conditions, P.T. Wasiolek, P.K. Hopke and A.C. James, J. Exposure Anal. Environ. Epi. 2:309-322 (1992).

137.     The Measurement of Activity-Weighted Size Distribution of Radon Progeny: Methods and Laboratory Intercomparison Studies, P.K. Hopke, M. Ramamurthi, E.O. Knutson, K.W. Tu, P. Scofield, R.F. Holub, Y.S. Cheng, Y.F. Su, W. Winklmayr, J.C. Strong, S. Solomon, and A. Reineking, Health Phys. 63:560-570 (1992).

138.     Measurement of Activity-Weighted Size Distributions of Radon Decay Products in Normally Occupied Homes, P.K. Hopke, P. Wasiolek, N. Montassier, A. Cavallo, K. Gadsby and R. Socolow, Rad. Prot. Dosim. 45:329-332 (1992).

139.     Potential Source Contribution Function Analysis and Source Apportionment of Sulfur Species Measured at Rubidoux, CA during the Southern California Air Quality Study, 1987, N. Gao, M-D. Cheng and P.K. Hopke, Anal. Chim. Acta 277:369-380 (1993).

140.     Penetration of Ultrafine Particles of ²¹⁸Po Through Human Nasal and Oral Cast Models, N. Montassier, K. Karpen-Hayes, P.K. Hopke and D.L. Swift, Rad. Prot. Dosim. 45:665-667 (1992).

141.     Nanometer and Ultrafine Aerosols from Radon Radiolysis, M. Ramamurthi, R. Strydom, P.K. Hopke, and R.F. Holub, J. Aerosol Sci. 24:393-407 (1993).

142.     A Receptor-Oriented Methodology for Determining Source Regions of Particle Sulfate Composition Observed at Dorset, Ontario, M.D. Cheng, P.K. Hopke and Y. Zeng, J. Geophys. Res. 98:16,839-16,849 (1993).

143.     Reference Data Sets for Chemometrical Methods Testing, P.K. Hopke and D.L. Massart, Chemom. Intel. Lab. Syst. 19:35-41 (1993).

144.     Potential for Ion-Induced Nucleation of Volatile Organic Compounds by Radon Decay in Indoor Environments, J.M. Daisey and P.K. Hopke, Aerosol Sci. Technol. 19:80-93 (1993).

145.     Combining Chemical and Meteorological Data to Infer Source Areas of Airborne Pollutants, P.K. Hopke, N. Gao, and M.D. Cheng, Chemom. Intel. Lab. Syst. 19:187-199 (1993).

146.     Analysis of the Performance of a Radon Mitigation System Based on Charcoal Beds, P. Wasiolek, N. Montassier, P.K. Hopke, R. Abrams, Environ. Technol. Letters 14:401-412 (1993).

147.     Initial Size Distributions and Hygroscopicity of Indoor Combustion Aerosol Particles, W. Li and P.K. Hopke, Aerosol Sci. Technol. 19:305-316 (1993).

148.     Evaluation of the Effectiveness of Several Air Cleaners for Reducing the Hazard from Indoor Radon Progeny, P.K. Hopke, N. Montassier, and P. Wasiolek, Aerosol Sci. Technol. 19:268-278 (1993).

149.     Qualitative Determination of Source Regions of Long-Range Transported Aerosol Using Data Collected at Canadian High Arctic, M-D. Cheng, P.K. Hopke, L. Barrie, A. Rippe, M. Olson and S. Landsberger, Environ. Sci. Technol. 27:2063-2071 (1993).

150.     HO_x Production Due to Radon Decay in Air, H. Ding and P.K. Hopke, J. Atmos. Chem. 17:375-390 (1993).

151.     Experimental Study of Ion-Induced Nucleation by Radon Decay, F. He, and P.K. Hopke, J. Chem. Phys. 99:9972-9978 (1993).

152.     The Use of Multiple Fractal Dimensions to Quantify Airborne Particle Shape, Y. Xie, P.K. Hopke, G. Casuccio and B. Henderson, Aerosol Sci. Technol. 20:161-168 (1994).

153.     Evaluation of Several Air Cleaners for Reducing Indoor Radon Progeny, P.K. Hopke, B. Jensen, and N. Montassier, J. Aerosol Sci. 25:395-405 (1994).

154.     Comparison of the Source Locations and Seasonal Patterns for Acidic Species in Precipitation and Ambient Particles in Southern Ontario, Canada, Y. Zeng and Hopke, P.K., Sci. Total Environ. 143:245-260 (1994).

155.     Extreme Value Estimation Applied to Aerosol Size Distributions and Related Environmental Problems, P.K. Hopke and P. Paatero, J. Res. NIST 99:361-367 (1994).

156.     Exploration of Airborne Particulate Multivariate Chemical Data By Projection Pursuit, D.M. Glover and P.K. Hopke, Atmospheric Environ. 28:1411-1424 (1994).

157.     Receptor Modeling of Airborne Ionic Species Collected in SCAQS, 1987, N. Gao, M.D. Cheng, and P.K. Hopke, Atmospheric Environ. 28:1447-1470 (1994).

158.     Visual Neural Mapping Technique for Locating Fine Airborne Particles Sources, D. Wienke and P.K. Hopke, Environ. Sci. Technol. 28:1015-1022 (1994).

159.     Multiple Site Receptor Modeling with a Minimal Spanning Tree Combined with a Neural Network, D. Wienke, N. Gao, and P.K. Hopke, Environ. Sci. Technol. 28:1023-1030 (1994).

160.     Projection of Prim's Minimal Spanning Tree into a Kohonen's Neural Network for Identification of Airborne Particle Sources by Their Multielement Trace Patterns, D. Wienke and P.K. Hopke, Anal Chim. Acta 291:1-18 (1994).

161.     Evaluation of Room Air Cleaners for the Reduction of Exposure and Dose to Indoor Radon Progeny, P.K. Hopke, B. Jensen, N. Montassier, and P. Wasiolek, Rad. Prot. Dosim. 56:55-60 (1994).

162.     Use of Chain Code Histogram Method to Quantify Airborne Particle Shapes, Y. Xie, P.K. Hopke, B. Henderson, and G. Casuccio, Aerosol Sci. Technol. 21:21-218 (1994).

163.     Neutralization of Thoron Progeny in Gases, Y.S. Cheng, C.C. Yu, C.J. Tung, and P.K. Hopke, Health Phys. 67:155-161 (1994).

164.     Hygroscopicity of Consumer Spray Product Aerosol Particles, W. Li and P.K. Hopke, J. Aerosol Sci. 25:1341-1351 (1994).

165.     Airborne Particle Classification with a Combination of Chemical Composition and Shape Index Utilizing an Adaptive Resonance Artificial Neural Network, Y. Xie, D. Wienke and P. K. Hopke, Environ. Sci. Technol. 28:1921-1928 (1994).

166.     An Adaptive Resonance Theory Based Artificial Neural Network (ART-2a) for Rapid Identification of Airborne Particle Shapes from Their Scanning Electron Microscopy Images, D. Wienke, Y. Xie and P. K. Hopke, Chemom. Intel. Lab. Syst. 25:367-387 (1994).

167.     How to Start Surfing the Internet: A Tutorial, P.K. Hopke, Chemom. Intel. Lab. Syst. 30:1-9, (1995).

168.     Electret Method for Continuous Measurement of the Concentration of Radon in Water, S.K. Dua, P.K. Hopke and P. Kotrappa, Health Phys. 68:110-114 (1995).

169.     Classification of Airborne Particles by Analytical Sem Imaging and a Modified Kohonen Neural Network (3MAP), D. Wienke, Y. Xie, and P.K. Hopke, Anal. Chim. Acta 310:1-14 (1995).

170.     A System for Aerodynamically Sizing Ultrafine Radioactive Particles. O.O. Olawoyin, T.M. Raunemaa and P.K. Hopke, Aerosol Sci. Technol. 23:121-130 (1995).

171.     Assessment of the Exposure to and Dose from Radon Decay Products in Normally Occupied Homes, P.K. Hopke, B. Jensen, C.S. Li, N. Montassier, P. Wasiolek, A.J. Cavallo, K. Gatsby, and R.H. Socolow, Environ. Sci. Technol. 29:1359-1364 (1995).

172.     SO₂ Oxidation and H₂O-H₂SO₄ Binary Nucleation by Radon Decay, F He and P.K. Hopke, Aerosol Sci. Technol. 23:411-421 (1995).

173.     Hygroscopic Growth of Consumer Spray Products, S.K. Dua, P.K. Hopke, and T. Raunemaa, Aerosol Sci. Technol. 23:331-340 (1995).

174.     A Study on the Potential Sources of Air Pollutants Observed at Tjorn, Sweden, A. Fan, P.K. Hopke, T. Raunemaa, M. Oblad, and J.M. Pacyna, Environ. Sci. Poll. Res. 2:107-115 (1995).

175.     The Use of Bootstrapping to Estimate Conditional Probability Fields for Source Locations of Airborne Pollutants, P.K. Hopke, C.L. Li, W. Cizek and S. Landsberger, Chemom. Intel. Lab. Syst. 30:69-79 (1995).

176.     Sources of Fine Particle Lead, Bromine, and Elemental Carbon in Southeastern Australia, X. Liu and P. K. Hopke, D. Cohen, and G. Bailey, Sci. Total Environ. 175:65-79 (1995).

177.     Possible Sources and Preferred Pathways for Biogenic and Non-Seasalt Sulfur for the High Arctic, P.K. Hopke, L.A. Barrie, S.-M. Li, C. Li, M-D Cheng, and Y. Xie, J. Geophys. Res. 100:16,595-16,603 (1995).

178.     Evaluation of Spatial Patterns of Fine Particle Sulfur and Lead Concentrations in New South Wales, Australia, X. Liu, N. Gao, P.K. Hopke, and D. Cohen, Atmospheric Environ. 30:1 9-24 (1996).

179.     Hygroscopic Growth of Assorted Indoor Aerosols, S.K. Dua and P.K. Hopke, Aerosol Sci. Technol. 24:151-160 (1996).

180.     The Ratio of Aerosol Optical Absorption Coefficients to Sulfur Concentrations, as an Indicator of Smoke from Forest Fires when Sampling in Polar Regions, A.V. Polissar, P.K. Hopke, W.C. Malm, J.F. Sisler, Atmospheric Environ., 30:1147-1157 (1996)

181.     Solving the Chemical Mass Balance Problem Using an Artificial Neural Network, X-H Song and P.K. Hopke, Environ. Sci. Technol. 30:531-535 (1996).

182      Source Apportionment Study of Nitrogen Species Measured in Southern California in 1987, M-D Cheng, N. Gao, and P.K. Hopke, J. Environ. Engineer. 122:183-190 (1996).

183.     Analysis of Source Contributions to the Ambient Aerosol Sample by Simulated Annealing, X-H. Song and P.K. Hopke, Chemom. Intel. Lab. Syst. 34:275-281 (1996).

184.     The Initial Atmospheric Behavior of Radon Decay Products, P.K. Hopke, J. Radioanal. Nucl. Chem. 203:353-375 (1996).

185.     Possible Sources of Some Trace Elements Found in Airborne Particles and Precipitation in Dorset, Ontario, N. Gao, P.K. Hopke, and N.W. Reid, J. Air Waste Manage. Assoc. 46:1035-1047 (1996).

186.     Kohonen Neural Network as a Supervised Pattern Recognition Method Based on the Weight Interpretation, X-H Song and P.K. Hopke, Anal. Chim. Acta 334:57-66 (1996).

187.     Hygroscopicity of Indoor Aerosols and Their Influence on the Deposition of Inhaled Radon Decay Products, S.K. Dua and P.K. Hopke, Environ. Int. 22:S941-S947 (1996).

188.     The Chemical Mass Balance as a Multivariate Calibration Problem, P.K. Hopke and X-H Song, Chemom. Intel. Lab. Syst. 37:5-14 (1997).

189.     Experimental Assessment of the Short and Long Term Effects of ²²²Rn from Domestic Shower Water on the Dose Incurred in Normally Occupied Homes, B. Fitzgerald, P.K. Hopke, V. Datye, T. Raunemaa, K. Kuuspalo, Environ. Sci. Technol. 31:1822-1829 (1997).

190.     Dynamic Model for Assessing ²²²Rn and Progeny Exposure from Showering with Radon Bearing Water, V.K. Datye, P.K. Hopke, B. Fitzgerald, and T.M. Raunemaa, Environ. Sci. Technol. 31:1589-1596 (1997).

191.     Classification of Single Particles by Neural Networks Based on the Computer-Controlled Scanning Electron Microscopy Data, P.K. Hopke and X.-H. Song, Anal. Chim. Acta 348:375-388 (1997).

192.     Deposition of Particles in a Chamber as a Function of Ventilation Rate, Y. Nomura, P.K. Hopke, B. Fitzgerald, and B. Mesbah, Aerosol Sci. Technol. 27:62-72 (1997).

193.     A New Technique to Measure the Mobility Size of Ultrafine Radioactive Particles, B. Mesbah, B. Fitzgerald, P.K. Hopke, and M. Pourprix, Aerosol Sci. Technol. 27:381-393 (1997)

194.     A Calibration Tutorial for Spectral Data. Part 2. Partial Least Squares Regression and Some Neural Network Results, P. Geladi, H. Martens, L. Hadjiiski and P.K. Hopke, J. NIR Spectrosc. 4, 243-255 (1997).

195.     Characterization of the Gent Stacked Filter Unit PM₁₀ Sampler, P.K. Hopke, Y. Xie, T. Raunemaa, S. Biegalski, S. Landsberger, W. Maenhaut, P. Artaxo, and D. Cohen, Aerosol Sci. Technol. 27:726-735 (1997).

196.     Electrical Mobility and Size Distribution of Aged ²¹²Pb Clusters in Nitrogen Gas, T.-R. Chen, Y.S. Cheng, P.K. Hopke, and M. Pourprix, J. Aerosol Sci. 28:1465-1477 (1997).

197.     A Fuzzy Adaptive Resonance Theory-Supervised Predictive Mapping Neural Network Applied to the Classification of Multivariate Chemical Data, X.-H. Song, P.K. Hopke, M.A. Bruns, D.A. Bossio and K.M. Scow, Chemom. Intel. Lab. Syst. 41:161-170 (1998).

198.     Atmospheric Aerosol over Alaska: 1. Spatial and Seasonal Variability, A.V. Polissar, P.K. Hopke, W.C. Malm, and J.F. Sisler, J. Geophys. Res. 103: 19,035-19,044 (1998).

199.     Atmospheric Aerosol Over Alaska: 2. Elemental Composition and Sources, A.V. Polissar, P.K. Hopke, P.A. Paatero, W.C. Malm, and J.F. Sisler, J. Geophys. Res. 103: 19,045-19,057 (1998).

200.     Relationship of Phase Diagrams And Surfaces of New Phase Nucleation Rates, M.P. Anisimov, P.K. Hopke, D.H. Rasmussen, S. D. Shandakov and V.A. Pinaev, J. Chem. Phys. 109:1435-1444 (1998).

201.     Regression on Parameters from Three-Way Decomposition, P. Geladi, Y.-L. Xie, A. Polissar, and P.K. Hopke, J. Chemom. 12:337-354 (1998).

202.     Surface Topology of the Ion-Induced Vapor Nucleation Rate, M.P. Anisimov, P.K. Hopke, J. Terry, D.H. Rasmussen, S.D. Shandakov, and Viktor A. Pinaev, Aerosol Sci. Technol.29:547-556 (1998).

203.     Three-Way (PARAFAC) Factor Analysis: Examination and Comparison of Alternative Computational Methods as Applied to Ill-Conditioned Data, P.K. Hopke, P. Paatero, H. Jia, R.T. Ross, and R.A. Harshman, Chemom. Intel. Lab. Syst. 43:25-42 (1998).

204.     Positive Matrix Factorization Applied to Curve Resolution Problem, Y.-L. Xie, P.K. Hopke, and P. Paatero, J. Chemom. 12: 357-364 (1998).

205.     Identification of Source Nature and Seasonal Variations of Arctic Aerosol by the Multilinear Engine, Y.-L. Xie, P. K. Hopke, P. Paatero, L. A. Barrie and S.-M. Li, Atmospheric Environ. 33: 2549-2562 (1999).

206.     Locations and Preferred Pathways of Possible Sources of Arctic Aerosol, Y.-L. Xie, P. K. Hopke, P. Paatero, L. A. Barrie and S.-M. Li, Atmospheric Environ. 33: 2229-2239 (1999).

207.     Identification of Source Nature and Seasonal Variations of Arctic Aerosol by Positive Matrix Factorization, Y.-L. Xie, P.K. Hopke, P. Paatero, L.A. Barrie and S.-M. Li, J. Atmos. Sci. 56: 249-260 (1999).

208.     Hygroscopicity of Diesel Aerosols, S.K. Dua, P.K. Hopke and T. Raunemaa, Water, Air, Soil Pollution 112: 247-257 (1999).

209.     Source Apportionment of Soil Samples by the Combination of Two Neural Networks Based On Computer-Controlled Scanning Electron Microscopy, X.-H. Song, L. Hadjiiski, P.K. Hopke, L. L. Ashbaugh, G.S. Casuccio, and S. Schlaegle, J. Air Waste Manag. Assoc. 49:773-783 (1999).

210.     Calibration Transfer as a Data Reconstruction Problem, Y. Xie, P.K. Hopke and P. Paatero, Anal. Chim. Acta, 384: 193-205 (1999).

211.     Modeling Atmospheric Particulate Matter, C. Seigneur, P. Pai, P. K. Hopke and D. Grosjean, Environ. Sci. Technol. 33: 80A-86A (1999).

212.     The Aerosol at Barrow, Alaska: Long-Term Trends and Source Locations, A. V. Polissar, P. K. Hopke, P. Paatero, Y. J. Kaufman, D. K. Hall, B. A. Bodhaine, E. G. Dutton and J. M. Harris, Atmospheric Environ. 33: 2441-2458 (1999).

213.     Classification of Single Particles Analyzed by ATOFMS Using An Artificial Neural Network, ART-2a, X.-H. Song, P.K. Hopke, D.P. Fergenson and K.A. Prather, Anal. Chem., 71: 860-865 (1999).

214.     Multiple Regression for Environmental Data: Nonlinearities and Prediction Bias, P. Geladi, L. Hadjiiski and P.K. Hopke, Chemom. Intell. Lab. Syst. 47: 165 - 173 (1999).

215.     Mixed Multiway Analysis of Airborne Particle Composition Data, P.K. Hopke, Y. Xie and P. Paatero, J. Chemom. 13:343-352 (1999).

216.     A Comparison of Modeling Nonlinear Systems with ANN and PLS, L. Hadjiiski, P. Geladi and P.K. Hopke, Chemom. Intell. Lab. Syst., 49: 91-103 (1999).

217.     Pattern Recognition of Soil Samples Based on the Microbial Fatty Acid Contents, X. Song, P.K. Hopke, K. Graham, M. Bruns and K. Scow, Environ. Sci. Technol. 33: 3524-3530 (1999).

218.     Receptor Modeling Assessment of PTEAM Data, E. Yakovleva, P.K. Hopke and L. Wallace, Environ. Sci. Technol. 33: 3645-3652 (1999).

219.     Multiple Site Receptor Modeling with a Minimal Spanning Tree Combined with a Kohonon Neural Network, P.K. Hopke, SPIE Proceedings 3854:30-35 (1999).

220.     Multiway Analysis of Airborne Particle Composition Data, P.K. Hopke, Y. Xie, and P. Paatero, SPIE Proceedings 3854:36-42 (1999).

221.     Characterization of Uncertainty and Variability in Residential Radon Cancer Risks, D. Krewski, S. Rai, J. Zielinski, and P.K. Hopke, Ann. New York Acad. Sci. 895: 245-272 (1999).

222.     Investigation of Sources of Atmospheric Aerosol Urban and Suburban Residential Areas in Thailand by Positive Matrix Factorization, W. Chueinta, P.K. Hopke and P. Paatero, Atmospheric Environ. 34:3319-3329 (2000).

223.     Application of Artificial Neural Networks to Modeling and Prediction of Ambient Ozone Concentrations, L. Hadjiiski and P.K. Hopke, J. Air Waste Manag. Assoc. 50:894-901 (2000).

224.     A Prospective Assessment of the ²¹⁰Po Surface Collection for Estimating ²²²Rn Exposure, B. Fitzgerald and P.K. Hopke, J. Environ. Radioactivity 51:79-98 (2000).

225.     The Health Risks Due To Radon in Drinking Water, P.K. Hopke, T.B. Borak, J. Doull, J.E. Cleaver, K.F. Eckerman, L.C.S. Gundersen, N.H. Harley, C.T. Hess, N.E. Kinner, K.J. Kopecky, T.E. McKone, R.G. Sextro, and S.L.Simon, Environ. Sci. Technol. 34:921-926 (2000).

226.     Estimation of the Heteroscedastic Noise in Large Data Arrays, J.-H. Wang and P.K. Hopke, Anal. Chim. Acta 412:177-184 (2000).

227.     n-Pentanol-Helium Homogeneous Nucleation Rates, M.P. Anisimov, P.K. Hopke, S.D. Shandakov and I.I. Shvets, J. Chem. Phys. 113:1971-1975 (2000).

228.     Resolution of Multicomponent Peaks by OPA, PMF, and ALS, A.Garrido Frenich, M. Martínez Galera, J.L. Martínez Vidal, D.L. Massart , J.R. Torres-Lapasió, K. De Braekeleer, J.H. Wang and P.K. Hopke, Anal. Chim. Acta 411:145-155 (2000).

229.     Identification of Sources of Phoenix Aerosol by Positive Matrix Factorization, Z. Ramadan, X.-H. Song, and P.K. Hopke, J. Air Waste Manage. Assoc. 50:1308-1320 (2000).

230.     A Transition from Heterogeneous to Homogeneous Nucleation in the Turbulent Mixing CNC, R. Mavliev, P.K. Hopke, H.-C. Wang, and D.-W. Lee, Aerosol Sci. Technol. 35: 586-595 (2001).

231.     Multiple Imputation for Multivariate Data with Missing and Below-Threshold Measurements: Time-Series Concentrations of Pollutants in the Arctic, P.K. Hopke, C. Liu, and D.B. Rubin, Biometrics 57: 22-33 (2001).

232.     Beta Gauge for Aerosol Mass Measurement, W. Chueinta, and P. K. Hopke, Aerosol Sci. Technol. 35: 840-843 (2001).

233.     Equation-Oriented System (EOS): An Efficient Programming Approach to Solve Multilinear and Polynomial Equations by the Conjugate Gradient Algorithm, J.-H. Wang and P.K. Hopke, Chemom. Intell. Lab. Syst. 55: 13-22 (2001).

234.     Identification of Sources of Pollutants in Precipitation Measured at the Mid-Atlantic US Coast, D. Lucey, L. Hadjiiski, P.K. Hopke, J. Scudlark, and T. Church, Atmospheric Environ. 35:3979-3986 (2001).

235.     Source Apportionment of Gasoline and Diesel by Multivariate Calibration Based on Single Particle Mass Spectral Data, X.-H. Song, N.M. Faber, P.K. Hopke, D.T. Suess, K.A. Prather, J. Schauer, and G.R. Cass, Anal. Chim. Acta 446: 329-343 (2001).

236.     Two Channel Vapor Nucleation in the Vicinity of the Triple Point, L. Anisimova, P.K. Hopke, and J. Terry, J. Chem. Phys. 114:9852-9855 (2001).

237.     Variable Selection in Classification of Environmental Soil Samples for PLS and Neural Network Models, Z. Ramadan, X.H. Song, P.K. Hopke, M. Johnson and K. Scow, Anal. Chim. Acta 446: 233-244 (2001).

238.     Binary N-Octanol - Sulfur Hexafluoride Nucleation, M P. Anisimov, P. K. Hopke, I.N. Shaimordanov, S. D. Shandakov, and L.-E. Magnusson, J. Chem. Phys. 115: 810-816 (2001).

239.     The Quantification of ATOFMS Data by Multivariate Methods, D.P. Fergenson, X.-H. Song, Z. Ramadan, J.O. Allen, L.S. Hughes, G.R. Cass, P.K. Hopke and K.A. Prather, Anal. Chem. 73: 3535-3541 (2001).

240.     Sources of Fine Particle Composition in the Northeastern US, X.H. Song, A.V. Polissar, and P.K. Hopke, Atmospheric Environ. 35:5277-5286 (2001).

241.     Nucleation Rate Surface Topologies for Binary Systems, M.P. Anisimov and P.K. Hopke, J. Phys. Chem. B; 105:11817-11822 (2001).

242.     Enhanced Airborne Polychlorinated Biphenyl (PCB) Concentrations and Chlorination Downwind of Lake Ontario, J. Chiarenzelli, J. Pagano , R. Scrudato , L. Falanga , K. Migdal , A. Hartwell, M. Milligan, T. Battalagia, T. M. Holsen, Y. Hsu, P.K. Hopke, Environ. Sci. Technol. 35: 3280-3286 (2001).

243.     Source Regions for Atmospheric Aerosol Measured at Barrow, Alaska, A.V. Polissar, P.K. Hopke, J.M. Harris, Environ. Sci. Technol. 35: 4214-4226 (2001).

244.     Atmospheric Aerosol over Vermont: Chemical Composition and Sources, A.V. Polissar, P.K. Hopke, and R.L. Poirot, Environ. Sci. Technol. 35: 4604-4621 (2001).

245.     Comparative Application of Multiple Receptor Methods to Identify Aerosol Sources in Northern Vermont, R.L. Poirot, P.R. Wishinski, P.K. Hopke and A.V. Polissar, Environ. Sci. Technol. 35: 4622-4636 (2001).

246.     Utilizing Wind Direction and Wind Speed as Independent Variables in Multilinear Receptor Modeling Studies, P. Paatero and P.K. Hopke, Chemom. Intell. Lab. Syst. 60: 25-41 (2002).

247.     Understanding and Controlling Rotations in Factor Analytic Models, P. Paatero, P.K. Hopke, X.H. Song, Z. Ramadan, Chemom. Intell. Lab. Syst. 60: 253-264 (2002).

248.     Identification of Sources Contributing to the Mid-Atlantic Regional Aerosol, J.H. Lee, Y. Yoshida, B.J. Turpin, P.K. Hopke, and R.L. Poirot, J. Air Waste Manage. 52:1186-1205 (2002).

249.     Measured Summertime Concentrations of Particulate Components, Hg⁰, and Speciated Polycyclic Aromatic Hydrocarbons at Rural Sites in New York State, P.K. Hopke, W. Liu, Y.-J. Han, S.M. Yi, T.M. Holsen, S. Cybart, K. Kozlowski, and M. Milligan, Environ. Pollution 123:413-425 (2003).

250.     Recent developments in CANDECOMP/ PARAFAC algorithms: A critical review, N.M. Faber, R. Bro, and P. K. Hopke, Chemom. Intell. Lab. Syst. 65:119-137 (2003).

251.     General Recommendations For Vapor Nucleation Rate Experiments, M.P. Anisimov, P.K. Hopke, and Z.N. Esina, Aerosol Sci. Technol. 37:183-186 (2003).

252.     Sample–Specific Standard Error of Prediction for Partial Least Squares Regression, N.M. Faber, X.-H. Song and P.K. Hopke, Trends Anal. Chem. 22(5):330-334 (2003).

253.     Application of Modified Alternating Least Squares Regression to Spectroscopic Image Analysis, J.-H. Wang, P.K. Hopke, T.M. Hancewicz, and S.L. Zhang, Analytica Chim. Acta 476: 93-109 (2003).

254.     Comparison of Positive Matrix Factorization (PMF) and Multilinear Engine (ME-2) for the Source Apportionment of Particulate Pollutants, Z. Ramadan, B. Eickhout, X.-H. Song, L. M. C. Buydens, and P.K. Hopke, Chemom. Intell. Lab. Syst. 66:15-28 (2003).

255.     Discarding or Downweighing High-Noise Variables in Factor Analysis Models, P. Paatero and P.K. Hopke, Anal. Chim. Acta 490: 277-289 (2003).

256.     Locating and Quantifying PCB Sources in Chicago: Receptor Modeling and Field Sampling, Y.-K. Hsu, T. M. Holsen and P.K. Hopke, Environ. Sci. Technol. 37: 681-690 (2003).

257.     Comparison of Hybrid Receptor Models to Locate PCB Sources in Chicago, Y.-K. Hsu, T. M. Holsen and P.K. Hopke, Atmospheric Environ. 37: 545–562 (2003).

258.     Recent Developments in Receptor Modeling, P.K. Hopke, J. Chemometrics 17: 255-265 (2003).

259.     Source Identification of Atlanta Aerosol by Positive Matrix Factorization, E. Kim, P.K. Hopke, and E. Edgerton, J. Air Waste Mange. Assoc. 53:731-739 (2003).

260.     Source Identification of PM2.5 in an Arid Northwest U.S. City by Positive Matrix Factorization, E. Kim, T.V. Larson, P.K. Hopke, C. Slaughter, L.E. Sheppard, C. Claiborne, Atmospheric Res. 66: 291–305 (2003).

261.     Composition of the Finnish Arctic Aerosol: Collection and Analysis of Historic Filter Samples, T. Yli-Tuomi, L. Venditte, P.K. Hopke, M.S. Basunia, S. Landsberger, Y. Viisanen, and J. Paatero, Atmospheric Environ. 37:2355-2364 (2003).

262.     Advanced Factor Analysis of Spatial Distributions of PM2.5 in the Eastern U.S., P. Paatero, P.K. Hopke, J. Hoppenstock, and S. Eberly, Environ. Sci. Technol. 37: 2460-2476 (2003).

263.     Receptor Modeling of Ambient and Personal Exposure Samples: 1998 Baltimore Particulate Matter Epidemiology-Exposure Study, P.K. Hopke, Z. Ramadan, P. Paatero, G. Norris, M. Landis, R. Williams, and C.W. Lewis, Atmospheric Environ. 37: 3289-3302 (2003).

264.     Data Mining of the Relationship Between Volatile Organic Components and Transient High-Ozone Formation, F. Gan and P.K. Hopke, Anal. Chim. Acta 490 153–158 (2003).

265.     Spatial Prediction of Air Quality Data: A Primer, D.M. Holland, W.M. Cox, R. Scheffe, A.J. Cimorelli, D. Nychka, and P.K. Hopke, EM August, 31-35 (2003)

266.     Atmospheric Aerosol over Finnish Arctic: Source Analysis by the Multilinear Engine and the Potential Source Contributions Function, T. Yli-Tuomi, P.K. Hopke, P. Paatero, M.S. Basunia, S. Landsberger, Y. Viisanen, and J. Paatero, Atmospheric Environ. 37: 4381-4392 (2003).

267.     New Convergence Criterion for Multivariable Curve Resolution, F. Gan and P.K. Hopke, Anal. Chim. Acta 495: 195-203 (2003).

268.     The Evolution of Chemometrics, P.K. Hopke, Anal. Chim. Acta 500: 365-377 (2003).

269.     Origins of Fine Aerosol Mass in the Western United States Using Positive Matrix Factorization, W. Liu, P.K. Hopke, and R.A. Vancuren, J. Geophys. Res.- Atmospheres 108 (D23): D04716 (2003).

270.     Application of Receptor Modeling to Atmospheric Constituents at Potsdam and Stockton, NY, W. Liu, P.K. Hopke,Y.-J. Han, S.-M. Yi, T.M. Holsen, S. Cybart, K. Kozlowski, and M. Milligan, Atmospheric Environ. 37: 4997-5007 (2003).

271.     Incorporation of Parametric Factors into Multilinear Receptor Model Studies of Atlanta Aerosol, E. Kim, P.K. Hopke, P. Paatero, and E.S. Edgerton, Atmospheric Environ. 37: 5009-5021 (2003).

272.     Ambient Silver Concentration Anomaly in the Finnish Arctic Lower Atmosphere, M. S. Basunia, S. Landsberger, T. Yli-Tuomi, P. K. Hopke, P. Wishinski, J. Paatero and Y. Viisanen, Environ. Sci. Technol. 37: 5537-5544 (2003).

273.     Comparison of Experimental and Theoretical Heterogeneous Nucleation on Ultrafine Carbon Particles, D.-W. Lee, P.K. Hopke, D.H. Rasmussen, H.-C. Wang, R. Mavliev, J. Phys. Chem. B 107: 13813-13822 (2003).

274.     Advanced Factor Analysis on Pittsburgh Particle Size Distribution Data, L. Zhou, E. Kim, P.K. Hopke, C. Stanier, and S. Pandis, Aerosol Sci. Technol. 38 (S1): 118-132 (2004).

275.     Multilinear Model for Spatial Pattern Analysis of the Measurement of Haze and Visual Effects Project, W. Chueinta, P.K. Hopke, and P. Paatero, Environ. Sci. Technol. 38: 544-554 (2004).

276.     Analysis of Particle Size Distributions using UNMIX and Positive Matrix Factorization, E. Kim, P.K. Hopke, T.V. Larson, and D.S. Covert, Environ. Sci. Technol. 38: 202-209 (2004).

277.     On-Road Exposure to Highway Aerosols 1. Aerosol and Gas Measurements, D. B. Kittelson, W. F. Watts, J. P. Johnson, M. L. Remerowki, E. E. Ische, G. Oberdörster, R. M. Gelein, A.C. Elder, P. K. Hopke, C.-H. Jeong, E. Kim, W. Liu, W. Zhao, and L. Zhou, Inhalation Toxicology 16 (Suppl. 1): 31-39 (2004).

278.     On-Road Exposure to Highway Aerosols 2. Exposures of Aged, Compromised Rats, A.C.P. Elder, R. Gelein, J. Finkelstein, R. Phipps, M. Frampton, M. Utell, D.B. Kittelson, W.F. Watts, P.K. Hopke, C.-H. Jeong, E. Kim, W. Liu, W. Zhao, L. Zhou, R. Vincent, P. Kumarathasan, and G. Oberdörster, Inhalation Toxicology 16 (Suppl. 1): 41-53 (2004).

279.     Measurement of Real-Time PM_2.5 Mass, Sulfate, and Carbonaceous Aerosols at the Multiple Monitoring Sites, C.-H. Jeong, D.-W. Lee, E. Kim, P.K. Hopke, Atmospheric Environ. 38: 5247–5256 (2004).

280.     Source Identification of Volatile Organic Compounds in Houston, TX, W. Zhao, P.K. Hopke, and T. Karl, Environ. Sci. Technol. 38: 1338-1347 (2004).

281.     Characteristics of Nucleation and Growth Events of Ultrafine Particles Measured in Rochester, NY, C.-H. Jeong, P.K. Hopke, D. Chalupa, M. Utell, Environ. Sci. Technol. 38: 1933 - 1940 (2004).

282.     Improving Source Identification of Atlanta Aerosol using Temperature Resolved Carbon Fractions in Positive Matrix Factorization, E. Kim, P.K. Hopke, and E.S. Edgerton, Atmospheric Environ. 38: 3349-3362 (2004).

283.     Source Apportionment of Fine Particles at Washington, DC utilizing Temperature Resolved Carbon Fractions, E. Kim and P.K. Hopke, J. Air Waste Manage. Assoc. 54: 773-785 (2004).

284.     Comparison of Two Trajectory Based Models for Locating Particle Sources for Two Rural New York Site, L. Zhou, W. Liu, and P.K. Hopke, Atmospheric Environ. 38: 1955-1963 (2004).

285.     Improving Source Identification of Fine Particles in a Rural Northeastern U.S. Area utilizing Temperature Resolved Carbon Fractions, E. Kim and P.K. Hopke, J. Geophys. Res. 109: D09204 (2004).

286.     Experimental Studies of Heterogeneous Nucleation in the Turbulent Mixing Condensation Nuclei Counter, R. Mavliev, P.K. Hopke, H-C Wang, D.-W. Lee, J. Phys. Chem. B 108: 4558-4564 (2004).

287.     Identification of Source Location for Atmospheric Dry Deposition of Heavy Metals during Yellow-Sand Events in Seoul, Korea in 1998 Using Hybrid Receptor Models, Y.-J. Han, T.M. Holsen, P.K. Hopke, J.-P. Cheong, H. Kim, S.-M. Yi, Atmospheric Environ. 38: 5353–5361 (2004).

288.     Investigation of Sources of Atmospheric Aerosol at Urban and Semi-Urban Areas in Bangladesh, B.A. Begum, E. Kim, S.K. Biswas, P.K. Hopke, Atmospheric Environ. 38: 3025-3038 (2004).

289.     The Comparison Between Thermal-Optical Transmittance Elemental Carbon and Aethalometer Black Carbon Measured at Multiple Monitoring Sites, C.H. Jeong, P.K. Hopke, E. Kim, and D.W. Lee, Atmospheric Environ. 38: 5193–5204 (2004).

290.     Source Apportionment for Ambient Particles in the San Gorgonio Wilderness, W. Zhao and P.K. Hopke, Atmospheric Environ. 38: 5901-5910 (2004).

293.     Condensation Activation and Nucleation on Heterogeneous Aerosol Nanoparticles, V.Y. Smorodin and P.K. Hopke, J. Phys. Chem. B 108: 9147-9157 (2004).

292.     Total Potential Source Contribution Function Analysis of Trace Elements Found in Aerosol Samples Collected at the Burnt Island Great Lakes Sampling Locations, S. R. Biegalski and P.K. Hopke, Environ. Sci. Technol. 38: 4276-4284 (2004).

293.     Factor Analysis of Seattle Fine Particles, E. Kim, P.K. Hopke, T.V. Larson, N.N. Maykut, J. Lewtas, Aerosol Sci. Technol. 38: 724–738 (2004).

294.     Advanced Factor Analysis for Multiple Time Resolution Aerosol Composition Data, L. Zhou, P.K. Hopke, P. Paatero, J.M. Ondov, J. Patrick Pancras, N.J. Pekney, C.I. Davidson, Atmospheric Environ. 38: 4909-4920 (2004).

295.     Comparison between Conditional Probability Function and Nonparametric Regression for Fine Particle Source Directions, E. Kim, and P.K. Hopke, Atmospheric Environ. 38: 4667–4673 (2004).

296.     Atmospheric Gaseous Mercury Concentrations in New York State: Relationships with Meteorological Data and Other Pollutants, Y.-J. Han, T.M. Holsen, S.-O. Lai, P.K. Hopke, S.-M. Yi, W. Liu, J. Pagano, L. Falanga, M. Milligan, and C. Andolina, Atmospheric Environ. 38: 6431-6446 (2004).

297.     Measurement of Ultrafine Particle Size Distribution from Stationary Combustion Sources of Coal, Oil and Gas, M.-C. Oliver Chang, P.K. Hopke, J.C. Chow, J.G. Watson, S.-M. Yi, G.C. England, J. Air Waste Manage. Assoc. 54: 1494-1505 (2004).

298.     Sources of Fine Particle Composition in New York City, Z. Li, P.K. Hopke, L. Husain, S. Qureshi, V.A. Dutkiewicz. J.J. Schwab, F. Drewnick, and K.L. Demerjian, Atmospheric Environ. 38: 6521–6529 (2004).

299.     Particle Collection Characteristics of a Prototype Electrostatic Precipitator (ESP) for a Differential TEOM System, S.M. Yi, J.L. Ambs, H. Patashnick, G. Rupprecht, P.K. Hopke, Aerosol Science and Technology 38: 46-51 Suppl. 2, (2004).

300.     A Graphical Diagnostic Method For Assessing the Rotation In Factor Analytical Models Of Atmospheric Pollution, P. Paatero, P.K. Hopke, B.A. Begum, S.K. Biswas, Atmospheric Environ. 39: 193-201 (2005).

301.     Investigation of Sources of Atmospheric Aerosol at a Hot Spot Area in Dhaka, Bangladesh, B.A. Begum, S.K. Biswas, E. Kim, P.K. Hopke, and M. Khaliquzzaman, J. Air Waste Manage. Assoc. 55: 227-240 (2005).

302.     Application of PLS and Back Propagation Neural Networks for the Estimation of Soil Properties, Z. Ramadan, P.K. Hopke, M. J. Johnson and K.M. Scow, Chemom. Intell. Lab. Syst. 75: 23-30 (2005).

303.     Measurement of Particle-Bound Reactive Oxygen Species in Rubidoux Aerosols, P. Venkatachari, P.K. Hopke, B.D. Grover, and D.J. Eatough, J. Atmospheric Chem. 50: 49-58 (2005).

304.     Performance Evaluation of Continuous PM_2.5 Mass Concentration Monitors, J.-H. Lee, P.K. Hopke, T.M. Holsen, D.-W. Lee, P.A Jaques, C. Sioutas, and J.L. Ambs, J. Aerosol Sci. 36: 95-109 (2005).

305.     Mining Airborne Particulate Size Distribution Data by Positive Matrix Factorization (PMF), L. Zhou, E. Kim, P.K. Hopke, C. Stanier, S.N. Pandis, J. Geophys. Res. 110: D07S19 (2005).

306.     Investigation of the Relationship Between Chemical Composition and Size Distribution of Airborne Particles by Partial Least Square (PLS) and Positive Matrix Factorization (PMF), L. Zhou, P.K. Hopke, C.O. Stanier, S.N. Pandis, J.M. Ondov, J.P. Pancras, J. Geophys. Res. 110: D07S18 (2005).

307.     Source Identification of Fine Particles in Washington DC by Expanded Factor Analysis Modeling, B.A. Begum, P.K. Hopke, and W. Zhao, Environ. Sci. Technol. 55: 227–240 (2005).

308.     Measurements of Fine Particle Mass Concentrations Using Continuous and Integrated Monitors in Eastern U.S. Cities, J.H. Lee, P.K. Hopke, T.M. Holsen, A.V. Polissar, D.-W. Lee, E.S. Edgerton, J.M. Ondov, and G. Allen, Aerosol Sci. Technol. 39:261-275 (2005).

309.     Comparison between Back-Trajectory Based Modeling and Lagrangian Backward Dispersion Modeling For Locating Sources of Reactive Gaseous Mercury, Y.-J. Han, T.M. Holsen, P.K. Hopke, S.-M. Yi, Environ. Sci. Technol. 39: 1715-1723 (2005).

310.     Evaluation of Continuous and Filter-Based Methods for Measuring PM_2.5 Mass Concentration, J.H. Lee, P.K. Hopke, T.M. Holsen, A.V. Polissar, Aerosol Sci. Technol. 39: 290-303 (2005).

311.     Measurement of Total PM_2.5 Mass (Nonvolatile plus Semi-Volatile) with the FDMS TEOM Monitor, B.D. Grover, M. Kleinman, N.L. Eatough, D.J. Eatough, P.K. Hopke, R.W. Long, W.E. Wilson, M.B. Meyer, J.L. Ambs, J. Geophys. Res. 110: D07S03 (2005).

312.     Receptor Modeling for Multiple Time Resolved Species: The Baltimore Supersite, D. Ogulei, P.K. Hopke, L. Zhou, P. Paatero, S.S. Park, J.M. Ondov, Atmospheric Environ. 39: 3751-3762 (2005).

313.     Estimation of Organic Carbon Blank Values and Error Structures of the Speciation Trends Network Data for Source Apportionment, E. Kim, P.K. Hopke, and Y. Qin, J. Air Waste Manage. Assoc. 55: 1190 - 1199 (2005).

314.     Evaluation of the Potential Source Contribution Function using the 2002 Quebec Forest Fire Episode, B.A. Begum, E. Kim, C.-H. Jeong, D.-W. Lee, P.K. Hopke, Atmospheric Environ. 39: 3719-3724 (2005).

315.     Spatial Variability of Fine Particle Mass, Components, and Source Contributions During the Regional Air Pollution Study in St. Louis, E. Kim, P.K. Hopke, J.P. Pinto, W.E. Wilson, Environ. Sci. Technol. 39: 4172-4179 (2005).

316.     An Algorithm for Semi-Empirical Design of Nucleation Rate Surface, L. Anisimova, M. Anisimov, G. Semin, P. Turner, P.K. Hopke, J. Colloid Interface Sci. 290: 107–116 (2005).

317.     Improving Source Apportionment of Fine Particles in the Eastern U.S. Utilizing Temperature Resolved Carbon Fractions, E. Kim and P.K. Hopke, J. Air Waste Manage. Assoc. 55: 1456–1463 (2005).

318.     Sources of Fine Particles in a Rural Midwestern U.S. Area, E. Kim, P.K. Hopke, D.M. Kenski, M. Koerber, Environ. Sci. Technol. 39: 4953-4960 (2005).

319.     The Workshop on the Source Apportionment of PM Health Effects: Inter-Comparison of Results and Implications, G.D. Thurston, K. Ito, T. Mar, W.F. Christensen, D.J. Eatough, R.C. Henry, E .Kim, F. Laden, R. Lall, T.V. Larson, H. Liu, L. Neas, J.P. Pinto, M. Stölzel, H. Suh, and P.K. Hopke, Environmental Health Perspectives 113: 1768-1774 (2005).

320.     Predicting Bulk Ambient Aerosol Compositions from ATOFMS Data with ART-2a and Multivariate Analysis, W. Zhao, P.K. Hopke, X. Qin, K.A. Prather, Anal. Chim. Acta 549: 179–187 (2005).

321.     Characterization of Non-Methane Volatile Organic Compounds Sources in Houston during 2001 using Positive Matrix Factorization, E. Kim, S.G. Brown, H.R. Hafner, P.K. Hopke, Atmospheric Environ. 39: 5934-5946 (2005).

322.     Identification of Fine Particle Sources in Mid-Atlantic US Area, E. Kim and P.K. Hopke, Water, Air, and Soil Pollution 168: 391-421 (2005).

323.     Reconciling Trajectory Ensemble Receptor Model Results with Emissions, P.K. Hopke, L. Zhou, R.L. Poirot, Environ. Sci. Technol. 39: 7980-7983 (2005).

324.     Fiber Classification and the Influence of Average Air Humidity, Z. Wang, P.K. Hopke , P.A. Baron, G. Ahmadi,Y-S Cheng, G. Deye, W.-C. Su, Aerosol Sci. Technol. 39:1056-1063 (2005).

325.     Nucleation Research Progress for Description of Atmospheric Aerosol Dynamics II. Nucleation Rate Surface for Water Vapor. M.P. Anisimov, L. Anisimova, P. Turner, P. Hopke. Optics of Atmosphere and Ocean 18 (5-6): 380-386 (2005)

326.     Cluster Analysis of Single Particle Mass Spectra at Flushing, NY, L. Zhou, P.K. Hopke and P. Venkatachari, Anal. Chim. Acta 555: 47-56 (2006).

327.     Temporal Variations and Spatial Distribution of Ambient PM_2.2 and PM₁₀ Concentrations in Dhaka, Bangladesh, B.A. Begum, S.K. Biswas, and P.K. Hopke, Science of the Total Environment 358: 36-45 (2006).

328.     Real-Time Characterization of the Composition of Individual Particles Emitted From Ultrafine Particle Concentrators, Su, Y. X., Sipin, M. F., Spencer, M. T., Qin, X., Moffet, R. C., Shields, L. G., Prather, K. A., Venkatachari, P., Jeong, C. H., Kim, E., Hopke, P. K., Gelein, R. M., Utell, M. J., Oberdörster, G., Berntsen, J., Devlin, R. B., Chen, L. C., Aerosol Sci. Technol. 40: 437-455 (2006).

329.     An Intercomparison of Measurement Methods for Carbonaceous Aerosol in the Ambient Air in New York City, P. Venkatachari, L. Zhou, P.K. Hopke, J.J. Schwab, K.L. Demerjian, S. Weimer, O. Hogrefe, H.D. Felton, O.V. Rattigan, Aerosol Sci. Technol. 40:788–795 (2006).

330.     Source Investigation for Ambient PM_2.5 in Indianapolis, IN, W. Zhao and P.K. Hopke, Aerosol Sci. Technol. 40:898-909 (2006).

331.     Measurement of Both Nonvolatile and Semi-Volatile Fractions of Fine Particulate Matter in Fresno, CA, B.D. Grover, N.L. Eatough, D.J. Eatough, J.C. Chow, J.G. Watson, J.L. Ambs, M.B. Meyer, P.K. Hopke, R. Al-Horr, D.W. Later, W.E. Wilson, Aerosol Sci. Technol. 40:811-826 (2006)

331.     Impact of Banning of Two-Stroke Engines on Airborne Particulate Matter Concentrations in Dhaka, Bangladesh, B.A. Begum, S.K. Biswas, P.K. Hopke, J. Air Waste Manage. Assoc. 56: 85-89 (2006).

332.     Source Identification of Airborne PM_2.5 at the St. Louis-Midwest Supersite, J.H. Lee, P.K. Hopke, J.R. Turner, J. Geophys. Res. 111, D10S10 (2006).

333.     PM Source Apportionment and Health Effects: 1. Intercomparison of Source Apportionment Results, Hopke, P.K., Ito, K., Mar, T., Christensen, W.F., Eatough, D.J., Henry, R.C., Kim, E., Laden, F., Lall, R., Larson, T.V., Liu, H., Neas, L., Pinto, J.,P. Stölzel, M. Suh, H., Paatero, P., Thurston, G.D., J. Exposure Science Environmental Epi. 16: 275-286 (2006).

334.     PM Source Apportionment and Health Effects: 2. An Investigation of Inter-method Variability in Associations between Source-Apportioned Fine Particle Mass and Daily Mortality in Washington, DC, Ito, K., Christensen, W.F., Eatough, D.J., Henry, R.C., Kim, E., Laden, F., Lall, R., Larson, T.V., Naes, L., Hopke, P.K., Thurston, G.D., J. Exposure Science Environmental Epi. 16: 300–310 (2006).

335.     PM Source Apportionment and Health Effects. 3. Investigation of Inter-method Variations in Associations between Estimated Source Contributions of PM_2.5 and Daily Mortality in Phoenix, AZ, Mar, T.F., Ito,K., Koenig, J.Q., Larson, T.V., Eatough, D.J., Henry, R.C., Kim, E., Laden, F., Lall, R., Naes, L., Stölzel, M., Paatero, P., Hopke, P.K., Thurston, G.D., J. Exposure Science Environmental Epi. 16: 311–320 (2006).

336.     Source Identification for Fine Aerosols in Mammoth Cave National Park, W. Zhao and P.K. Hopke, Atmospheric Research 80:309-322 (2006).

337.     Baltimore Supersite: Highly Time Resolved Concentrations of Urban PM2.5 and its Constituents for Resolution of Sources and Immune Responses, J.M. Ondov, T.J. Buckley, P.K. Hopke, D. Ogulei, M.B. Parlange, W. F. Rogge, K. S. Squibb, M.V. Johnston, and A. S. Wexler, Atmospheric Environ. 40: S224-A237 (2006).

338.     Source Apportionment of Baltimore Aerosol from Combined Size Distribution and Chemical Composition Data, D. Ogulei, P.K. Hopke, L. Zhou, J.P. Pancras, N. Nair, J.M. Ondov, Atmospheric Environ. 40: S396-S410 (2006).

339.     Apportioning Sources of PM_2.5 in St. Louis, MO using Speciation Trends Network Data, J.H. Lee, P.K. Hopke, Atmospheric Environ. 40: S360-S477 (2006).

340.     An Ion Chromatographic Analysis of Water-Soluble, Short-Chain Organic Acids in Ambient Particulate Matter, R.Sundar Raman, P.K. Hopke, Int. J. Environ. Anal. Chem. 86: 767-777 (2006).

341.     Influence of Atmospheric Dispersion and New Particle Formation Events on Ambient Particle Number Concentrations in Rochester, USA and Toronto, Canada, C.-H. Jeong, G.J. Evans, P.K. Hopke, D. Chalupa, and M. Utell, J. Air Waste Manage. Assoc. 56; 431-443 (2006).

342.     Spatial and Temporal Variability of Black Carbon in New York City, P. Venkatachari, L. Zhou, P.K. Hopke, D. Felton, O.V. Rattigan, J.J. Schwab, K.L. Demerjian, J. Geophys. Res. 111, D10S05 (2006).

343.     Analysis of Indoor Particle Size Distributions from an Occupied Townhouse using PMF, D. Ogulei, P.K. Hopke, L. Wallace, Indoor Air 16:204-215 (2006). 

344.     Airflow and Deposition of Nano-Particles in a Human Nasal Cavity, P. Zamankhan, G. Ahmadi, Z. Wang, P.K. Hopke, Y.-S. Cheng, W.C. Su, and D. Leonard, Aerosol Sci. Technol. 40:463–476 (2006).

345.     The Concentrations and Sources of PM_2.5 in Metropolitan New York City, Y. Qin, E. Kim, and P.K. Hopke, Atmospheric Environ. 40: S312-S332 (2006).

346.     Source Apportionment and Analysis on Ambient and Personal Exposure Samples with a Combined Receptor Model and an Adaptive Blank Estimation Strategy, W. Zhao, P.K. Hopke, G. Norris, R.Williams, and P. Paatero, Atmospheric Environ. 40: 3788-3801 (2006).

347.     Characterization of Fine Particle Sources in the Great Smoky Mountains Area, E. Kim and P.K. Hopke, Science of the Total Environment 368: 781-794 (2006).

348.     Relationship of Heterogeneous Nucleation and Condensational Growth on Aerosol Nanoparticles, V.Ye. Smorodin and P.K. Hopke, Atmospheric Research 82:591-604 (2006).

349.     Concentration and Sources of PM₁₀ and its Constituents in Alsasua, Spain, J. Zabalza, D. Ogulei, P.K. Hopke, J.H. Lee, I.J. Hwang, X. Querol, A. Alastuey, and J.M. Santamaría, Water, Air, and Soil Pollution 174: 385-404 (2006).

350.     Major Source Categories for PM_2.5 in Pittsburgh using PMF and UNMIX, N.J. Pekney, C.I. Davidson, A.L. Robinson, L. Zhou, P.K. Hopke, and D. Eatough, Aerosol Sci. Technol. 40:910-924 (2006).

351.     Application of PSCF and CPF to PMF-Modeled Sources of PM_2.5 in Pittsburgh, N.J. Pekney, C.I. Davidson, L. Zhou, and P.K. Hopke, Aerosol Sci. Technol. 40:952-961 (2006).

352.     Comparison of Source Apportionments of PM_2.5 at Two San Jose Speciation Trends Network Sites, I.J. Hwang and P.K. Hopke, J. Air Waste Manage. Assoc. 56: 1287-1300 (2006).

353.     Sources of Fine Particulate Species in Ambient Air over Lake Champlain Basin, Vermont, N. Gao, A. Gildemeister, K. Krumhansl, K. Lafferty, P.K. Hopke, E. Kim, R.L. Poirot, J. Air Waste Manage. Assoc. 56: 1607-1620 (2006).

354.     Exposure to Airborne Particulate Matter in the Ambient, Indoor and Occupational Environments, P.K. Hopke, A. Rossner, Clinics in Occupational and Environmental Medicine 5:747-771 (2006).

356.     Seasonal Variation of 2-Methyltetrols in the Ambient Air Samples, X. Xia, P.K. Hopke, Environ. Sci. Technol. 40: 6934-6937 (2006).

357.     Identification of Fulvic Acids and Sulfated and Nitrated Analogues in Atmospheric Aerosol by Electrospray Ionization-Fourier Transform-Ion Cyclotron Resonance-Mass Spectrometry, T. Reemtsma, A. These, P. Venkatarachi, X. Xia, P.K. Hopke, A. Springer and M. Linscheid,  Anal. Chem. 78: 8299-8304 (2006).

358.     Multi-Element Analysis and Characterization of Atmospheric Particulate Pollution in Dhaka, B.A. Begum, S. Biswas, P.K. Hopke, D.D. Cohen, Aerosol and Air Quality Research 6: 334-359 (2006).

359.     Effects of On-Road Highway Aerosol Exposures on Autonomic Responses in Aged, Spontaneously Hypertensive Rats, A. Elder, J.-P. Couderc, R. Gelein, S. Eberly, C. Cox, X. Xia, W. Zareba, P. Hopke, W. Watts, D. Kittelson, M. Frampton, M. Utell, and G. Oberdörster, Inhalation Toxicology 19: 1-12 (2007).

360.     Comparison between Sample-Species Specific Uncertainties and Estimated Uncertainties for the Source Apportionment of the Speciation Trends Network Data, E. Kim and P.K. Hopke, Atmospheric Environ. 41: 567-575 (2007).

361.     Estimation of Source Apportionment and Potential Source Locations of PM_2.5 at a West Coastal IMPROVE Site, I.J. Hwang and P.K. Hopke, Atmospheric Environ. 41: 506-518 (2007).

362.     Source Characterization of Ambient Fine Particles in the Los Angeles Basin, E. Kim and P.K. Hopke, J. Environmental Engineering Science 6: 343-353 (2007).

363.     Factor Analysis of Submicron Particle Size Distributions Near a Major United States-Canada Trade Bridge, D. Ogulei, P.K. Hopke, A.R. Ferro, P.A. Jaques, J. Air Waste Manage. Assoc. 57: 190-203 (2007).

364.     Characterization of Wintertime Reactive Oxygen Species Concentrations in Flushing, New York, P. Venkatachari, P.K. Hopke, W.H. Brune, X. Ren, R. Lesher, J. Mao, M. Mitchell, Aerosol Sci. Technol. 41: 97-111 (2007).

365.     Spatial Distribution of Source Locations for Particulate Nitrate and Sulfate in the Upper-Midwestern United States, W. Zhao, P.K. Hopke, and L. Zhou, Atmospheric Environ. 41: 1831-1847 (2007).

366.     Modeling Source Contributions to Submicron Particle Number Concentrations Measured in Rochester, NY, D. Ogulei, P.K. Hopke, D.C. Chalupa, and M.J. Utell, Aerosol Sci. Technol. 41: 179-201 (2007).

367.     Performance Comparison of Scanning Electrical Mobility Spectrometers, J. Rodrigue, M. Ranjan, P.K. Hopke, and S. Dhaniyala, Aerosol Sci. Technol. 41:360-368 (2007).

368.     Use of an Expanded Receptor Model for Personal Exposure Analysis in Schoolchildren with Asthma, W. Zhao, P.K. Hopke, E.W. Gelfand, N. Rabinovitch, Atmospheric Environ. 41: 4084-4096 (2007).

369.     Study of Urban Atmospheric Pollution in Navarre (Northern Spain), J. Zabalza, D. Ogulei, D. Elustondo, J. M. Santamaría, A. Alastuey, X. Querol, and P. K. Hopke, Environ. Monitoring Assessment 134: 137–151(2007).

370.     Wet Deposition of Mercury at a New York State Rural Site: Concentrations, Fluxes, and Source Areas, S.O. Lai, T.M. Holsen, P.K. Hopke, and P. Liu, Atmospheric Environ. 41: 4337-4348 (2007).

371.     A Study of Health Effect Estimates Using Competing Methods to Model Personal Exposures to Ambient PM2.5, M. Strand, P.K. Hopke, W. Zhao, S. Vedal, E. Gelfand, N. Rabinovitch, J. Exposure Sci. Environ. Epi. 17: 549-558 (2007).

372.     Estimation of Source Locations of Total Gaseous Mercury Measured in New York State Using Trajectory Based Models, Y. Han, T.M. Holsen, and P.K. Hopke, Atmospheric Environ. 41: 6033–6047 (2007).

373.     Source Apportionment of Time and Size Resolved Ambient Particulate Matter Measured with a Rotating DRUM Impactor, E. Pere-Trepat, P.K. Hopke, and P. Paatero, Atmospheric Environ. 41: 5921–5933 (2007).

374.     Sources of Fine Urban Particulate Matter in Detroit, MI, A. Gildemeister, P.K. Hopke, and E. Kim, Chemosphere 69: 1064-1074 (2007).

375.     Characteristics of the Major Chemical Constituents of PM2.5 and Smog Events in Seoul, Korea in 2003 and 2004. H.-S. Kim, J.-B. Huh, P.K. Hopke, T.M. Holsen, and S.-M. Yi, Atmospheric Environ. 41: 6762–6770 (2007).

376.     Source Identifications of Airborne Fine Particles using Positive Matrix Factorization and U.S. Environmental Protection Agency Positive Matrix Factorization, E. Kim and P.K. Hopke, J. Air Waste Manage. Assoc. 57: 811-819 (2007).

377.     Interference of Organic Signals in Highly Time Resolved Nitrate Measurements by Aerosol Mass Spectrometer. M.-S. Bae, J.J. Schwab, Q. Zhang, O. Hogrefe, K.L. Demerjian, S. Weimer, K. Rhoads, D. Orsini, P. Venkatachari, P.K. Hopke, J. Geophys. Res. 112: D22305 (2007).

378      Source Apportionment of Fine Particles Utilizing Partially Speciated Carbonaceous Aerosol Data at Two Rural Locations in New York State, R. Sunder Raman and P.K. Hopke, Atmospheric Environ. 41: 7923–7939 (2007).

379.     The Complexities of Air Pollution Regulation: the Need for an Integrated Research and Regulatory Perspective, S.S. Nadadur, A. Miller, P.K. Hopke, T. Gordon, S. Vedal, J.J. Vandenberg, and D.L. Costa, Toxicological Sciences 100: 318–327 (2007).

380.     Estimation of Mercury Loadings to Lake Ontario: Results from the Lake Ontario Atmospheric Deposition Study (LOADS), S.-O. Lai, T.M. Holsen, Y.J. Han, P.K. Hopke, S.M. Yi, P. Blanchard, J.J. Pagano, and M. Milligan, Atmospheric Environ. 41: 8205-8218 (2007).

381.     Source Apportionment of Air Particulate Matter by Chemical Mass Balance (CMB) and Comparison with Positive Matrix Factorization (PMF) Model, B.A. Begum, S.K. Biswas, P.K. Hopke, Aerosol and Air Quality Research 7: 446-468 (2007).

382.     The Nucleation Rate Surface Topology Elements for a Triple Point Vicinity, M.P. Anisimov, P.K. Hopke, V.M. Bouznik, Doklady Physical Chemistry 417, Part 1, 297–300 (2007).

383.     Measurement of PM2.5 Nonvolatile and Semi-Volatile Organic Material with the Sunset Laboratory Carbon Aerosol Monitor, B.D. Grover, M. Kleinman, N.L. Eatough, D.J. Eatough, R.A. Cary, P.K. Hopke, W.E. Wilson, J. Air Waste Manage. Assoc. 58: 72–77 (2008).

384.     Apportionment of Ambient Primary and Secondary PM2.5 at the Pittsburgh National Energy Laboratory (NETL)Pittsburgh PM Characterization Site Using Positive Matrix Factorization (PMF) and a Potential Source Contributions Function (PSCF) Analysis, D.V. Martello, N.J. Pekney, R.R. Anderson, C.I. Davidson, P.K Hopke, E. Kim, W.F. Christensen, N.F. Mangelson, and D.J. Eatough, J. Air Waste Manage. Assoc. 58: 357–368 (2008).

385.     Characterization of Fine Aerosol and its Inorganic Components at Two Rural Locations in New York State, R. Sunder Raman, P.K. Hopke, and T.M. Holsen, Environmental Monitoring and Assessment 144: 351-366 (2008).

386.     Comparison of Two Cluster Analysis Methods using Single Particle Mass Spectra, W. Zhao, P.K. Hopke, K.A. Prather, Atmospheric Environ. 42: 881-892 (2008).

387.     Development and Evaluation of a Particle-Bound Reactive Oxygen Species Generator, P. Venkatachari and P.K. Hopke, J. Aerosol Sci. 39: 168-174 (2008).

388.     The Use of Source Apportionment for Air Quality Management and Health Assessments, P.K. Hopke, J. Toxicology and Environmental Health 71: 555–563 (2008).

389.     Fine Particle Sources and Cardiorespiratory Morbidity: An Application of Chemical Mass Balance and Factor Analytical Source Apportionment Methods, J.A. Sarnat, A. Marmur, M. Klein, E. Kim, A.G. Russell, S.E. Sarnat, J.A. Mulholland, P.K. Hopke, P.E. Tolbert, Environmental Health Perspectives 116: 459-466 (2008).

390.     Sources Identification of the Atmospheric Aerosol at Urban and Suburban Sites in Indonesia by Positive Matrix Factorization, M. Santoso, P.K. Hopke, A. Hidayat, Diah Dwiana L, Science of the Total Environment 397: 229-238 (2008).

391.     Source Apportionment and Spatial Distributions of Coarse Particles During the Regional Air Pollution Study (RAPS), I.J. Hwang, P.K. Hopke, J.P. Pinto, Environ. Sci. Technol. 42: 3524–3530 (2008).

392.     Carbonaceous Aerosol at Two Rural Locations in New York State: Characterization and Behavior, R. Sunder Raman, P.K. Hopke, T.M. Holsen, J. Geophys. Res. 113: D12202 (2008).

393.     Source apportionment of ambient fine particle size distribution using positive matrix factorization in Erfurt, Germany, W. Yue, M. Stölzel, J. Cyrys, M. Pitz, J. Heinrich, W.G. Kreyling, H.-E. Wichmann, A. Peters, S. Wang, P.K. Hopke, Science of the Total Environment 398: 133–144 (2008).

394.     Development and Laboratory Testing of an Automated Monitor for the Measurement of Atmospheric Particle-bound Reactive Oxygen Species (ROS), P. Venkatachari, P.K. Hopke, Aerosol Sci. Technol. 42:629–635 (2008).

395.     Source Characterization of Ambient Fine Particles at Multiple Sites in the Seattle Area, E. Kim and P.K. Hopke, Atmospheric Environ. 42: 6047-6056 (2008).

396.     Characterization of Ambient Fine Particles in the Northwestern Area and Anchorage, AK, E. Kim and P.K. Hopke, J. Air Waste Manage. Assoc. 58: 1328–1340(2008).

397.     Quantitative Results from Single Particle Characterization Data, P.K. Hopke, J. Chemometrics 22: 528–532 (2008).

398.     Atmospheric Mercury (Hg) in the Adirondacks: Concentrations and Sources, H.D. Choi, T.M. Holsen, and P.K. Hopke, Environ. Sci. Technol. 42: 5644–5653 (2008).

399.     Source apportionment of particulate matter in Europe: a review of methods and results, Viana, M., Kuhlbusch, T.A.J., Querol, X., Alastuey, A., Harrison, R.M., Hopke, P.K., Winiwarter, W., Vallius, M., Szidat, S., Prévôt, A.S.H., Hueglin, C., Bloemen H., Wåhlin, P., Vecchi, R., Miranda, A.I., Kasper-Giebl, A., Maenhaut, W., Hitzenberger, R., J. Aerosol Sci. 39: 827–849 (2008).

400.     Urban Air Quality in the Asian Region, P.K. Hopke, D.D. Cohen, B.A. Begum, S.K. Biswas, B. Ni, G.G. Pandit, M. Santoso, Y.-S. Chung, P. Davy, A. Markwitz, S. Waheed, N. Siddique, F.L. Santos, P.C.B. Pabroa, M.C.S. Seneviratne, W. Wimolwattanapun, S. Bunprapob, T.B. Vuong, and A. Markowicz, Science of the Total Environment 404: 103-112 (2008).

401.     Characterization of Products Formed in the Reaction of Ozone with α-Pinene: Case for Organic Peroxides, P. Venkatachari and P.K. Hopke, J. Environmental Monitoring 10: 966-974 (2008).

402.     Estimation of Source Apportionment of Ambient PM_2.5 at Western Coastal IMPROVE Site in USA. I.-J. Hwang, D.S. Kim, P.K. Hopke, Journal of Korean Society for Atmospheric Environment 24: 30-42 (2008).

403.     Fibrous Particle Deposition in Human Nasal Passage: the Influence of Particle Length, Flow Rate and Geometry of Nasal Airway, Z. Wang, P.K. Hopke, G. Ahmadi, Y.S. Cheng, P.A. Baron, J. Aerosol Sci. 39: 1040–1054 (2008).

404.     Key Scientific and Policy- and Health-Relevant Findings from EPA's Particulate Matter Supersites Program and Related Studies: An Integration and Synthesis of Results, P.A. Solomon, P.K. Hopke, J. Froines, R. Scheffe, J. Air Waste Manage. Assoc. 58:S-3 – S-92 (2008).

405.     Source Apportionment of Coarse and Fine Particulate Matter at Navi Mumbai, India, P. Kothai, I.V. Saradhi, P. Prathibha, P.K. Hopke, G.G. Pandit, V.D. Puranik, Aerosol and Air Quality Research 8: 423-436 (2008).

406.     Assessment of Trends and Present Ambient Concentrations of PM_2.2 and PM₁₀ in Dhaka Bangladesh, B.A.Begum, S.K. Biswas, P.K. Hopke, Air Quality, Atmosphere and Health 1:125–133 (2008).

407.     Numerical Simulations Investigating the Regional and Overall Deposition Efficiency of the Human Nasal Cavity, K.T. Shanley, P. Zamankhan, G. Ahmadi, P.K. Hopke, and Y.-S. Cheng, Inhalation Toxicology 20: 1093-1100 (2008).

408.     Contemporary Threats and Air Pollution, P.K. Hopke, Atmospheric Environ. 43:87-93 (2009).

409.     Indoor Air Pollution from Particulate Matter Emissions in Different Households in Rural Areas of Bangladesh, B.A. Begum, S.K. Paul, M.D. Hossain, S.K. Biswas, Building and Environment 44: 898-903 (2009).

410.     Source Identification of Chittagong Aerosol by Receptor Modeling, B.A. Begum, S.K. Biswas, M..Nasiruddin, A.M. Showkot Hossain, P.K. Hopke, Environmental Engineering Science 26: 679-698 (2009).

411.     Rotational tools for factor analytic models, P. Paatero and P.K. Hopke, J. Chemometrics 23: 91-100 (2009).

412.     Source Apportionment of Airborne Particulate Matter for the Speciation Trends Network Site in Cleveland, OH. L. Zhou, P.K. Hopke, W. Zhao, J. Air Waste Manage. Assoc. 59: 321–331(2009).

413.     A Spectral Similarity Measure Using Bayesian Statistics, F. Gan, P.K. Hopke, J. Wang, Anal. Chim. Acta 635: 157-161 (2009).

414.     Secondary Organic Aerosol from α-Pinene Ozonolysis in a Dynamic Chamber System, X. Chen, P.K. Hopke, Indoor Air (in press, 2009).

415.     Source Apportionment of Winter Submicron Prague Aerosols from Combined Particle Number Size Distribution and Gaseous Composition Data, D. Thimmaiah, J. Hovorka, P.K. Hopke, Aerosol and Air Quality Research (In press, 2009).

416.     Quantifying Road Dust Resuspension in Urban Environment by Multilinear Engine: a Comparison with PMF2, Amato F., Pandolfi M., Escrig. A., Querol. X., Alastuey A., Pey. J., Perez N. and Hopke P. K., Atmospheric Environ. (in press, 2009).

417.     Designing Ambient Particulate Matter Monitoring Program for Source Apportionment Study by Receptor Modeling, N.T. Kim Oanh, P. Pongkiatkul, N. Upadhyay, P.K. Hopke, Atmospheric Environ. (in press, 2009).

418.     A Chamber Study of Secondary Organic Aerosol Formation by Linalool Ozonolysis, X. Chen and P.K. Hopke, Atmospheric Environ. (in press, 2009).

419.     A Similarity Measure for Two-Dimensional Fluorescent Spectra, W. Bai, M. Ren, P.K. Hopke, F. Gan, Applied Spectroscopy (in press, 2009).

Short Communications

1.         B.A. Roscoe and P.K. Hopke, Error Estimation of Factor Loadings and Scores Obtained with Target Transformation Factor Analysis - A Clarification, Anal. Chim. Acta 153:379-380 (1982).

2.         P.K. Hopke, Comments on 'Trace Element Concentrations in Summer Aerosols at Rural Sites in New York State and Their Possible Sources' by P. Parekh and L. Husain and 'Seasonal Variations in the Composition of Ambient Sulfur-Containing Aerosols' by R. Tanner and B. Leaderer, Atmospheric Environ. 16:1279-1280 (1982).

3.         P.K. Hopke and D.J. Alpert, Authors Response to Comments on 'A Quantitative Determination of Sources in the Boston Urban Aerosol' by Zinsmeister and Redman, Atmospheric Environ. 16:1567-1568 (1982).

4.         P.K. Hopke, Comments on 'Fitting Statistical Distributions to Air Quality Data by the Maximum Likelyhood Method' by D.M. Holland and T. Fitz-Simons, Atmospheric Environ. 16:1574-1575 (1982).

5.         K.H. Leong, H.C. Wang, J.J. Stukel, and P.K. Hopke, Authors Response to Comments on Calibration of an Autoranging Condensation Nuclei Counter' by Hogan and Barnard, Atmospheric Environ. 17:668 (1983).

6.         P.K. Hopke, Receptor Models in Air Pollution, Trends Anal. Chem. 3:vi-vii (1984).

7.         P.K. Hopke, Book Review: D.L. Massart and L. Kaufman, The Interpretation of Analytical Chemical Data by the Use of Cluster Analysis, J. Classification 1:280 (1984).

8.         P.K. Hopke, Analysis of Complex Mixture - Sewage Sludge, Trends Anal. Chem. 3:iii (1984).

9.         P.K. Hopke, The Use of Chemometrics in Apportionment of Air Pollution Sources, Trends Anal. Chem. 4:104-106 (1985).

10.       P.K. Hopke, Authors Response to Heidam and Kronberg's Discussion of 'A Comparison of R- and Q-Mode in Target Transformation Factor Analysis for Resolving Environmental Data', Atmospheric Environ. 19:1550-1551 (1985).

11.       P.K. Hopke, Indoor Air Pollution: Radioactivity, Trends Anal. Chem. 4:v-vi (1985).

12.       P.K. Hopke and E.R. Malinowski, Comments on Prior Use of the Malinowski Indicator Function in TTFA in Receptor Modeling, Atmospheric Environ. 20:605-606 (1986).

13.       P.K. Hopke and S. Dharmavaram, Recent Improvements to FANTASIA: A Target Transformation Factor Analysis Program, Comp. & Chem. 10:163-164 (1986).

14.       P.K. Hopke, Super Micro Computing with the DSI-32 Board, Trends Anal. Chem. 5:204-205 (1986).

15.       P.K. Hopke, Internationally Compatible Environmental Data, Trends Anal. Chem. 5:x-xi (1986).

16.       M.D. Cheng and P.K. Hopke, Response to Invited Comments by L.J. Gleser on 'Investigation on the Use of Chemical Mass Balance Receptor Model: Numerical Computations', Chemom. Intel. Lab. Syst. 1:48-50 (1986).

17.       P.K. Hopke, Software Review: EX-TRAN 7.11, Intelligent Terminals Ltd., Glasgow, United Kingdom, Chemom. Intel. Lab. Syst. 1:8 (1986).

18.       P.K. Hopke, Another Coprocessor Board to Add Power to Your PC, Trends in Anal. Chem. 5:252-253 (1986).

19.       P.K. Hopke, An Introduction to Supercomputers, Trends Anal. Chem. 6:1-2 (1987).

20.       P.K. Hopke, New Airborne Particulate Matter Standard for the U.S.A., Trends Anal. Chem. 6:x (1987).

21.       P.K. Hopke, Book Review: D. Coomans and I. Broeckaert, Potential Pattern Recognition in Chemical and Medical Decision Making, J. Classification 5:143-144 (1988).

2.         S. Dharmavaram and P.K. Hopke, Response to Comments on "A Simple Methodology for Determination of Back Trajectories", J. Air Pollution Control Assoc. 38:1291-1292 (1988).

23.       P.K. Hopke and M. Ramamurthi, Production of Ultrafine Particles by Radon Radiolysis, J. Aerosol Sci. 19:1323-1325 (1988).

24.       M. Ramamurthi and P.K. Hopke, Addendum to "On improving the validity of wire screen unattached fraction Rn daughter measurements", Health Phys. 59:355-356 (1990).

25.       P.K. Hopke and M.D. Cheng, Comments on "Source Apportionment With One Source Unknown" by K. Bandeen-Roche and D. Ruppert, Chemom. Intel. Lab. Syst. 10:185-187, (1991).

26.       P.K. Hopke, "Foreign Students and U.S. Economic Health", Science Vol 253, pg: 1194, 1991.

27.       P.K. Hopke, and N. Montassier, "Inconsistency in the Length of a Working Month", Letter to the Editor, Health Phys. 63:466-467 (1992).

28.       P.K. Hopke, Book Review: Directory of Chemistry Software 1992, W.A. Warr, P. Willett, and G. Downs, eds., in Chemom. Intel. Lab. Syst. 16:104-105 (1992).

29.       P.K. Hopke, Editorial: "Harmonization of Radon Jargon and Units", Health Phys. 64/5: 459 (May, 1993).

30.       P.K. Hopke, "First Conference on Three-Way Methods in Chemistry (TRIC)", Meeting Reports, in Chemom. Intel. Lab. Syst. 22; 155-160 (1993).

31.       P.K. Hopke, "Response to Archer", Health Phys. 66: 91-92 (1994).

32.       P.K. Hopke, "Spectramap" Software Review in Monitor, Chemom. Intel. Lab. Syst. 23; 261-262 (1994).

33.       P. K. Hopke, Book Review, B. Seifert, H. J. van der Wiel, B. Dodet and I. K. O'Neill, Environmental Carcinogens: Methods of Analysis and Exposure Measurement, Trends Anal. Chem. 14 3:VII (1995)

34.       M.P. Anisimov, S.D. Shandakov, V.A. Pinaev and P.K. Hopke, A New Evaluation of the Vapor Nucleation Rate in the Flow Diffusion Chamber, J. Aerosol Sci. 28, Suppl.1, 179-180 (1997)

35.       M.P. Anisimov, S.D. Shandakov, V.A. Pinaev and P.K. Hopke, Two Dimensional Transfer in the Flow Diffusion Chamber, J. Aerosol Sci. 28, Suppl 1, 175-176 (1997)

36.       P. K. Hopke, Y. Xie, P. Paatero, L. A. Barrie and S. -M. Li, Multiway Analysis Particle Composition Data, J. Aerosol Sci.29, Suppl. 1, S514-S516 (1998)

37.       “Geoaerosols”: Their Origin, Transport and Paradoxical, R.F. Holub, G.M. Reimer, P.K. Hopke,            J. Hovorka, B. Kremar and P.K. Smrz, Journal of Aerosol Sci. 30: S111-S112 (1999).

38.       A Transition From Heterogeneous to Homogeneous Nucleation in the Turbulent Mixing CNC, R. Mavliev, P. K. Hopke, H.C. Wang , and D.-W. Lee, J. Aerosol Sci. 30: S31-S32 (1999).

39.       Environmental Manufacturing Management at Clarkson University, Philip K. Hopke and Thomas

            Thies, EM Magazine, Sept: 19-21( 1999).

40.       Advances in Receptor Modeling, P.K. Hopke, J. Aerosol Sci. 32: S363-S368 (2001).

41.       Further investigations of the Geoaerosol phenomenon, R. F Holub, J. Hovorka, G. M. Reimer, B. D. Honeyman, P. K. Hopke and P. K. Smrz, J. Aerosol Sci. 32: S61-S70 (2001).

42.       Source apportionment studies of PM-2.5 in two Czech cities: Possible uses in health studies, Pinto J, Ramadan Z, Hopke P, Epidemiology 12: 350 (2001).

42.       Rebuttal to "Unfilterable 'geoaerosols', their use in the search for thermal, mineral and mineralized waters, and their possible influence on the origin of certain types of mineral waters" by B. Krcmar and T. Vylita, published in Environmental Geology 40(6): 678-682, Holub RF, Smrz PK, Reimer GM, Hopke PK, Hovorka J, Honeyman BD, Environ. Geol. 41: 984-985 (2002)

43.       Remarks on the article 'Bilinear estimation of pollution source profiles and amounts by using multivariate receptor models,' Hopke, P.K. and Paatero, P. Environmetrics 13: 803-805 (2002).

44.       Rebuttal to "Unfilterable 'geoaerosols', their use in the search for thermal, mineral and mineralized waters, and their possible influence on the origin of certain types of mineral waters" by B. Krcmar and T. Vylita, published in Environmental Geology 40(6): . . .,” Holub, R.F., Smrz, P.K., Reimer, G.M., Hopke, P.K., Hovorka, J., and Honeyman B.D., Environ Geol 41: 984-985 (2002).

45.       Krewski, D., Lubin, J.H., Samet, J.M., Hopke, P.K., James, A.C. and Brand, K.P., Letter to the Editor Re: Projection of Residential Radon Lung Cancer Risks: The BEIR VI Risk Models, Rad. Prot. Dosim.102: 371-374 (2002).

46.       Hopke, P.K., Advances in Monitoring Methods for Airborne Particles. Clean Air and Environmental Quality, 37/2, May 2003, pp. 26-31.

47.       Kim, E., Hopke, P.K., Begum. B.A., The use of time-resolved measurements for distinguishing gasoline emissions from diesel emissions in source apportionment of fine particles, Epidemiology 15 (4): S153-S153 (2004).

48.       Stolzel M, Laden F, Dockery DW, Schwartz J, Kim E, Hopke PK, Neas LM, Source apportionment of fine and coarse particulate matter and daily mortality in two US cities - A comparison of different methods, Epidemiology 16 (5): S95 (2005).

49.       Thurston G, Ito K, Mar T, Christensen WF, Eatough DJ, Henry RC, Kim E, Laden F, Lall R, Larson TV, Liu H, Neas L, Pinto J, Stolzel M, Suh H, Hopke PK, Results and implications of the workshop on the source apportionment of PM health effects, Epidemiology 16 (5): S134-S135 (2005).

50.       Hopke, P.K.., Festschrift honouring Professor D.L. Massart, Chemom. Intell. Lab. Syst. 7:1-2 (2005).

51.       Hopke, P.K., Rockets Red Glare, InPark 3(2):26-29 (2007).

52.       Solomon,,P.A., Hopke, P.K., Introduction: A Special Issue of JA&WMA Supporting Key Scientific and Policy- and Health-Relevant Findings from EPA’s Particulate Matter Supersites Program and Related Studies: An Integration and Synthesis of Results, J. Air Waste Manage. Assoc. 58: 58: 137–139 (2008).

53.       Hopke, P.K., Reactive Particles as a Source of Human Health Effects, Atmospheric Environ. 42: 3192–3194 (2008).

54.       Geladi, P and Hopke, P.K., Is there a future for chemometrics? Are we still needed? Chemom. Intell. Lab. Syst. 91: 99–100 (2008).

55.       Geladi, P and Hopke, P.K., Is there a future for chemometrics? Are we still needed?, J. Chemometrics 22: 289-290 (2008).

56.       Solomon,,P.A., Hopke, P.K., The U.S. Environmental Protection Agency’s Particulate Matter Supersites Program: An Integrated Synthesis of Scientific Findings and Policy- and Health-Relevant Insights, J. Air & Waste Manage. Assoc. 58:S-1–S-2 (2008).

57.       Sundqvist K.L., Tysklind M., Andersson R., Sj�blom V., Cato I., Geladi P., Hopke P., Wiberg K., Receptor Modeling of PCDD/FS in Sediment of the Sundsvall Bay, Sweden, Organohalogen Compounds 70:1641-1644. (2008).

58.       Jeon, S., Cho, J., Lee, S., Xia, X., Crimmins, B., Hopke, P.K., Pagano, J., Holsen, T.M., The Level of Toxaphene in Korean Fish, Organohalogen Compounds 70: 2151-2153 (2008).

Invited Addresses

1.         Mobilization of Environmentally Detrimental Trace Species by Coal Utilization, P.K. Hopke, presented at the Symposium of Coal, Illinois State Academy of Sciences 1978 Annual Meeting, Normal, IL, April 1978.

2.         A Comparison of Factor Analysis Models Used to Interpret Environmental Data, P.K. Hopke, presented to the 4th Biennial Rocky Mountain Regional Meeting of the American Chemical Society, Boulder, CO, June 1978.

3.         Source Identification and Resolution Through Application of Factor and Cluster Analysis, P.K. Hopke, presented to New York Academy of Sciences Conference entitled Aerosols - Urban and Natural, Sources and Transport, New York, January 1979.

4.         Application of Factor Analysis to Quantitative Source Apportionment, P.K. Hopke, presented to the Symposium on Chemical Composition of Atmospheric Aerosols: Source/Air Quality Relationships, 180th National Meeting of the American Chemical Society, August 1980.

5.         Estimating the Impact of Sources on Air Quality in St. Louis Using Factor Analysis, P.K. Hopke, Symposium on RAPS Results, St. Louis, October 1980.

6.         The Application of Target Transformation Factor Analysis to Aerosol Source Resolution, P.K. Hopke, Air Pollution Control Association 74th Annual Meeting, Philadelphia, June 1981.

7.         The Deposition of Radon Daughters and Daughter-laden Aerosol on Rough-Wall Surfaces. P.K. Hopke, J.J. Stukel, K.H. Leong, A. Hubbard, and K. Nourmohammadi, Proceedings of the International Conference on Radiation Hazards in Mining: Control, Measurement, and Medical Aspects, American Institute of Mining, Metallurgical, and Petroleum Engineers, Inc., New York, pp. 1014-1021 (1981).

8.         The Use of Factor Analysis in Source Determinations for Particulate Emissions, P.K. Hopke, presented to first meeting of American Association for Aerosol Research, Santa Monica, CA, February 1982.

9.         The Use of Multielemental Analyses and Multivariate Statistical Methods to Identify Mineral Matter in Coal, P.K. Hopke, presented to American Nuclear Society Annual Meeting, Los Angeles, June 1982.

10.       A Review of Multivariate Receptor Models, P.K. Hopke, presented to the Symposium on Recent Advances in Pollutant Monitoring of Ambient Air and Stationary Sources, Raleigh, NC, May 1984.

11.       Identification of Fugitive Emissions Compositions by Target Transformation Factor Analysis of Wind-Trajectory-Selected Samples, P.K. Hopke, S.N. Chang, G.E. Gordon, and S.W. Rheingrover, presented to the 79th Annual Meeting of the Air Pollution Control Association, Minneapolis, MN, June 1986.

12.       Use of a Rule-Building Expert System for Classifying Air-Borne Particles, P.K. Hopke, presented to Environmetrics '87 Conference, Washington, D.C., November 1987.

13.       The Initial Behavior of Po-218 in Indoor Air, P.K. Hopke, K.D. Chu, L.M. Kulju, and M. Ramamurthi, presented to the 4th International Symposium on the Natural Radiation Environment, Lisbon, Portugal, December 1987.

14.       The Use of Receptor Modeling in Apportionment of Air Pollution Sources, P.K. Hopke, presented to the 3rd International Symposium of the Institute of Environmental and Industrial Health on Environmental Pollution and Human Health, Seoul, Korea, June 1988.

15.       Indoor Air Pollution Problems and Its Control, P.K. Hopke, presented to the Seminar on Air Pollution Control in Commemoration of the World Environment Day at the National Institute for Environmental Research, Seoul, Korea, June 1988.

16.       Production of Ultrafine Particles by Radon Radiolysis, P.K. Hopke, M. Ramamurthi, presented at the 1988 European Aerosol Conference, Lund, Sweden, August 1988.

17.       Applications of Chemometrics to Airborne Particle Source Apportionment Problems, P.K. Hopke, presented to Federation of Analytical Chemistry and Spectroscopy Societies, Chicago, IL. October 1989.

18.       The Application of Supercomputers to Chemometrics, P.K. Hopke, presented to Scientific Computing and Automation Conference, Maastricht, The Netherlands, June 1990.

19.       Chemometrics in Environmental Studies, P.K. Hopke, presented at Euroanalysis VII, Vienna, Austria, August, 1990.

20.       Neutron Activation Analysis in Receptor Modeling in Environmental Chemistry, S. Landsberger and P.K. Hopke, American Nuclear Society's 1990 Annual Meeting, Nashville, Tennessee, June 1990.

21.       Multivariate Methods for Environmental Chemical Analysis, Presented to 1992 Gordon Research Conference on Statistics in Chemistry and Chemical Engineering, New Hampton, NH

22.       Combining Chemical and Meteorological Data to Infer Source Areas or Airborne Pollutants, Presented at Computer Application in Analytical Chemistry Conference, Jena, Germany August 1992.

23.       Use of Pattern Recognition Tools for Classifying Particles Into Homogeneous Groups, Presented at Electron Microsocopy Society of America Meeting, August 1992.

24.       Extreme Value Estimation Applied to Aerosol Size Distributions and Related Environmental Problems, Conference on Extreme Value Theory and its Applications, National Institute of Standards and Technology, Gaithersburg, MD, May 1993.

25.       The Measurement of Ultrafine Aerosol Size (<10 nm) using Wire Screens, International Conference on Aerosol Science and Technology, Taichung, Taiwan, October 1993.

26.       The Chemical Mass Balance as a Multivariate Calibration Problem, P.K. Hopke and X-H. Song, presented at International Conference on Environmentrics and Chemometrics, Las Vegas, NV, September 11-13, 1995.

27.       Receptor Modeling in Environmental Chemistry, P.K. Hopke, presented at Eastern Analytical Symposium, Somerset, NJ, November 13, 1995.

28.       Exposure and Dose from Radon Decay Products in Normally Occupied Homes, P.K. Hopke presented at South African Association of Physicists in Medicine and Biology Annual Congress, Pretoria, South Africa, May 7, 1996.

29.       The Measurement of Radon Decay Products in Indoor Air and Their Relationship to Dose, P.K. Hopke, presented at South African Association of Physicists in Medicine and Biology Summer School, Pretoria, South Africa, May 10, 1996.

30.       Data Validation, P.K. Hopke, presented at Joint UNDP/RCA/IAEA Sub-Project on Nuclear Analytical Techniques, 3rd NCM & 2nd RCM, Beijing, China, September 2-6, 1996.

31.       Statistical Methods for QA/QC of Analytical Data Exemplified by IAEA Programmes on Airborne Particulate Matter, P.K. Hopke, Presented to International Symposium on Harmonization of Health-Related Environmental Measurements Using Nuclear and Isotopic Techniques, Hyderabad, India, November 4-7, 1996.

32.       Development of National Ambient Air Quality Regulations for Ozone and Particulate Matter in the United States, Presented to the Philippine Nuclear Research Institute, Quezon City, Philippines, August 1, 1997.

33.       Multiway Analysis of Image Data, Presented to the Federation of Analytical Chemical and Spectroscopy Societies (FACSS), Austin, Tx, October 13-17, 1998.

34.       Positive Matrix Factorization, Presented to the Eastern Analytical Symposium, Somerset, NJ, November 16-20, 1998.

35.       Information Base to Support Toxicological Mechanisms of Particulate Matter Action, presented to the Third Colloquium on PM and Health, Durham, NC, June 6-8, 1999.

36.       Source Identification and Quantitative Apportionment of Arctic Particulate Contaminants, presented to the AMAP Workshop on Techniques and Associated Uncertainties in Quantifying the Origin and Long-Range Transport of Contaminants to the Arctic, Bergen, Norway, June 14-16, 1999.

37.       EPA’s Policy on Residual Risk un the Clean Air Act, P.K. Hopke, presented to the 2001 Annual Winter Toxicology Forum, Washington, DC, February 12-14, 2001.

38.       Advances in Receptor Modeling, P.K. Hopke, presented to the European Aerosol Conference, Leipzig, Germany, September 3-7, 2001.

39.       Source apportionment study in two Czech cities: A comparison of methods, J. Pinto, Z. Ramadan, and P.K. Hopke, presented to the European Aerosol Conference, Leipzig, Germany, September 3-7, 2001.

40.       Behaviour and Characteristics of the Radon Decay Products and Their Implication on Radiation Protection, presented at Anläßlich des Ausscheidens von Prof. Dr. J. Porstendörfer, Georg-August-Universität, Göttingen, German, September 18, 2001.

41.       Major Sources of Air Pollution in Northeastern USA and Transboundary Pollution, presented at the Symposium on Air Pollution and Human Health, P.K.Conference of the Governors of the New England states and P.K. the Premiers of Eastern Canada (CGNA/PMEC), Montreal, PQ, May 23-24, 2002.

42.       Advances in Monitoring Methods for Airborne Particles, Keynote Address to the 16^th International Clean Air & Environment Conference, Clean Air Society of Australia and New Zealand, Christchurch, NZ, August 20-22, 2002.

43.       Fine Particles and Human Health: the Role of Epidemiological Studies in Developing National PM Standards, presented to Fine Particle Workshop, Clean Air Society of Australia and New Zealand, Christchurch, NZ, August 19, 2002.

44.       Regulating the Risks for Hazardous Air Pollutants, Risk Assessment Workshop, Clean Air Society of Australia and New Zealand, Christchurch, NZ, August 19, 2002.

45.       Receptor Modeling for Fine Mode Particles, Invited Tutorial Lecture, International Aerosol Conference, Taipei, Taiwan, September 8-13, 2002.

46.       The Use of Nuclear Analytical Data in Advanced Source Apportionment Techniques, P.K. Hopke, Presented to the 2002 Winter Meeting of the American Nuclear Society, Washington, DC, November 18-21, 2002

47.       Historical Efforts at Source Apportionment, P.K. Hopke, Presented to HEI Workshop to Improve Estimates of Diesel and Other Emissions for Epidemiologic Studies, Baltimore, MD, December 4-5, 2002.

48.       Source Apportionment Analysis of Northeastern Sites, P.K. Hopke, presented to Regional Air Quality Modeling and Data Analysis Meeting, Baltimore, MD, January 23-24, 2003.

49.       Receptor Modeling for Source Identification and Apportionment, P.K. Hopke, presented to the 9^th International Inhalation Symposium, Hannover, Germany, June 11-14, 2003.

50.       Factor Analysis of Spatial Distributions, P.K. Hopke, P. Paatero, S. Eberly, presented to 3rd International Workshop on Biomonitoring of Atmospheric Pollution (BioMAP), Bled, Slovenia, September 21-25, 2003.

51.       Sources of PM and Precursor Gases in New York State, P.K. Hopke, presented to the 2003 Environmental Monitoring, Evaluation, and Protection in New York: Linking Science and Policy, Albany, NY, October 7-8, 2003.

52.       Advanced Receptor Modeling for Source Identification and Apportionment, presented at Indian Institute of Technology, Bombay and cosponsored by the Indian Aerosol Science and Technology Association, Mumbai, India, October 16, 2003.

53.       Advanced Receptor Models for Source Identification and Apportionment, P.K. Hopke, presented to European Monitoring and Evaluation Program (EMEP) Workshop on Particulate Matter (PM) Measurement and Modeling, New Orleans, LA, April 20-23, 2004.

54.       Advanced Factor Analysis Methods for Receptor Modeling, Philip K. Hopke, presented as the Inaugural John C. and Susan S. G. Wierman Lecture, Department of Applied Mathematics and Statistics, The Johns Hopkins University, October 15, 2004.

55.       Using STN Data to Apportion the Motor Vehicle Contributions to PM_2.5, P.K. Hopke, presented to CRC Mobile Source Air Toxics Workshop: Advances in Field Measurements, Modeling, and Data Analysis, Scottsdale, AZ, December 1-2, 2004.

56.       How can small concentrations of small particles really kill people?, Clean Air Society of Australia & New Zealand, Hunter Sub-Branch, Newcastle, NSW, Australia, April 8, 2005.

57.       Theory and Application of Atmospheric Source Apportionment Methods, 37^th Air Pollution Workshop & International Symposium, Banff, Alberta, Canada, April 25, 2005.

58.       Current approaches to sampling and analysis of APM, presented to National Symposium on Improved Information for Air Quality Management, Bangkok, Thailand, May 19-20, 2005.

59.       Advances in receptor modeling and transboundary modeling, presented to National Symposium on Improved Information for Air Quality Management, Bangkok, Thailand, May 19-20, 2005.

60.       The current status of the regulations and their basis (Health effects) in the US, presented to National Symposium on Improved Information for Air Quality Management, Bangkok, Thailand, May 19-20, 2005.

61.       Sources of Airborne Particulate Matter: Constituents, Monitoring, and Source Apportionment, presented at the 2005 International Conference of the American Thoracic Society, San Diego, CA, May 22-25, 2005.

62.       Particulate Matter and Human Health, presented to the ACCENT Workshop on Organic Constituents of the Ambient Aerosol, Lillestrøm, Norway, May 27-28, 2005.

63.       Homogeneous Nucleation in th Ambient Atmosphere, presented to 79^th Colloid and Surface Science Symposium, Potsdam, N.Y., June 13-15,2005.

64.       Source Apportionment and Exposure Assessment, presented to EPA-GSF Workshop 2005, Hohenkammer, Germany, June 20-22, 2005.

65.       Expanded Factor Analysis Models for Improved Source Resolution, P.K. Hopke, E.P. Trepat, and P. Paatero, presented to the Joint Statistical Meeting, Minneapolis, MN, August 8-12, 2005.

66.       Sources of Airborne Particulate Matter, presented in the Symposium on Particles, Policy and Public Health, American Association for the Advancement of Science, St. Louis, MO, February 19, 2006.

67.       PM Composition, Sources and Their Health Effects, presented to Society of Toxicology, San Diego, March 6, 2006.

68.       Monitoring PM, a US Perspective, presented to Particles in Europe, Antwerp, Belgium, June 13, 2006.

69.       Source Apportionment Methodology, presented to Particulate Air Pollution and Health A Featured Symposium at the 99th A&WMA Annual Conference and Exhibition, New Orleans, LA, June 20-23, 2006.

70.       Source Apportionment Modeling – How Well Can We Do it?, presented to NARSTO Workshop on Applications of Particulate Matter Models for Source Apportionment and Air Quality Management, Boulder, CO, June 28-30, 2006.

71.       Exposure and Risks from Showering with Radon-Rich Water, presented to Workshop on Radon Occurrence, Health Risks and Policy, With an Emphasis on Radon in Ground Water Drinking Supplies, Durham, NC, October 4, 2006.

72.       The Role of Biogenic Isoprene in Secondary Organic Aerosol in Northern NY, presented to the Northeast Regional Meeting of the American Chemical Society, Binghamton, NY, October 4-7, 2006.

73.       Source-Receptor Relationships: Implications for Air Quality Policy, presented to NERAM V, Strategic Policy Directions for Air Quality Risk Management, Vancouver, B.C., October 16-18, 2006.

74.       Receptor Modeling: Assessment of the State-of-the-Art, presented to the 2007 Meeting of the European Geophysical Union, Vienna, Austria, April 15-19, 2007.

75.       Identification of Sources by Chemical Element Balance and Source Apportionment, presented to the Symposium on Particulate Matter (PM) Research and Policy: Yesterday, Today and Tomorrow at the 100^th Annual Meeting of the Air and Waste Management Association, Pittsburgh, PA, June 26-29, 2007.

76.       Source Apportionment for Exposure and Health Assessment, presented as the keynote address to the National Seminar on Nuclear Technology, Bandung, Indonesia, July 17-18, 2007.

77.       Air Quality Management in the United States, presented to the Ministry of the Environment, Republic of Indonesia, Jakarta, Indonesia, July 19, 2007.

78.       Chemometrics Applied to Environmental Problems, presented to the EAS Award for Outstanding Achievements in Chemometrics Symposium, Eastern Analytical Symposium, Somerset, NJ, November 12-16, 2007.

79.       Issues in Air Toxics Decision Making, presented to the Air Toxics Summit 2008, Boise, ID, August 5-7, 2008.

80.       Source Apportionment for Air Quality Planning, presented to EnviroCities 2008, Dubai, U.A.E., November 11-13, 2008.

81.       Formation of Secondary Organic Aerosol, presented to EnviroCities 2008, Dubai, U.A.E., November 11-13, 2008.

Contributed Addresses

1.         Decay Properties of Tb¹⁵⁷, R. A. Naumann and P. K. Hopke, Bull. Am. Phys. Soc. 12, 36 (1967).

2.         A Radiochemical Separation of Osmium from Lead Spallation Products, P. K. Hopke and R. A. Naumann, presented to the 153rd Meeting of the American Chemical Society, April, 1967.

3.         Decay of Po²⁰³ and Po²⁰⁵, P. K. Hopke and R. A. Naumann, Bull. Am. Phys. Soc. 13, 654 (1968).

4.         Levels in Bi²⁰³, Bi²⁰⁵ and Bi²⁰⁷, P. K. Hopke, R. A. Naumann and E. H. Spejewski, Bull. Am. Phys. Soc. 13, 1369 (1968).

5.         Decay of Pt¹⁹³, R. A. Naumann and P. K. Hopke, Bull. Am. Phys. Soc. 13, 1469 (1968).

6.         E3 Isomer in Ag¹⁰⁵, P. K. Hopke, R. A. Naumann, E. H. Spejewski and A. T. Strigachev, Contribution to the International Conference on Properties of Nuclear States, Montreal, Canada, August, 1969.

7.         Levels in ¹³⁰Xe populated from ¹³⁰I, ^130mI and ¹³⁰Cs, P. K. Hopke, A. G. Jones and W. B. Walters, Bull. Am. Phys. Soc. 15, 623 (1970).

8.         Weak Transitions Observed in the Decay of ⁹⁵Nb^m,g, P. K. Hopke and R. A. Meyer, Bull. Am. Phys. Soc. 20, 719 (1975).

9.         Levels in ⁶¹Ni Populated by Decay of ⁶¹Cu, P. K. Hopke and R. A. Meyer, presented to the 172nd meeting of the American Chemical Society, August, 1976.

10.       Multiparticle Excitations in ⁶¹Ni and ⁶⁷Zn Observed in the Decay of ⁶¹Cu, ⁶⁷Cu and ⁶⁷Ga, S.A. Meyers, A. L. Prindle, R.A. Meyer and P.K. Hopke, Bull. Am. Phys.  Soc. 22, 596 (1977).

11.       Decay of ⁷¹As and ⁷¹Ge, P. K. Hopke and R. A. Meyer, Bull. Am. Phys. Soc. 22, 596 (1977).

12.       Concentrations of Pb, Cu and Zn in Chautauqua Lake, P. K. Hopke, J. R Mayer, M. G. Barth and S. Lindstrom, presented to the Third Northeast Regional Meeting of the American Chemical Society, October, 1971.

13.       Radioactivity Benchmarks for Chautauqua Lake, P. K. Hopke, D. F. Ruppert and S. A. Lis, presented to the Third Northeast Regional Meeting of the American Chemical Society, October, 1971.

14.       Levels of Radioactivity in Cattaraugus Creek, by D. F. Ruppert, G. W. Pilgrim and P. K. Hopke, presented to the Third Northeast Regional Meeting of the American Chemical Society, October, 1971.

15.       Neutron Activation Study of Trace Elements on Boston-Area Atmosphere Particulates, G. E. Gordon, W. H. Zoller, E. S. Gladney, A. G. Jones and P. K. Hopke, presented to the 163rd Meeting of the American Chemical Society, April, 1972.

16.       Spectrophotometric Determination of Nitrate Ion in Fresh Water, R. A. Peterson, M. M. Metro and P. K. Hopke, presented to the Pittsburgh Conference on Analytical Chemistry and Applied Spectroscopy, March, 1973.

17.       Geochemical Profile of Chautauqua Lake Sediments by Neutron Activation Analysis, P. K. Hopke and D. F. Ruppert, presented to the 166th Meeting of the American Chemical Society, August, 1973.

18.       Analysis of Lead in Natural Waters, M. Salerno and P. K. Hopke, presented to the Pittsburgh Conference on Analytical Chemistry and Applied Spectroscopy, March, 1974.

19.       Arsenic Concentrations of Household Laundry Products, P. K. Hopke and V. Colasanti, presented to the Pittsburgh Conference on Analytical Chemistry and Applied Spectroscopy, March, 1974.

20.       A Computer Program for the Analysis and Comparison of Multiple 4096-Channel Gamma-Ray Spectra, J. P. Maney, J. L. Fasching and P. K. Hopke, presented to the Pittsburgh Conference on Analytical Chemistry and Applied Spectroscopy, March, 1974.

21.       Application of Multivariate Analysis to Environmental Data Sets, P. K. Hopke, presented to the 170th Meeting of the American Chemical Society, August, 1975.

22.       Distribution and Physio-Chemical Characterization of Trace Metals in Fly Ash from Coal-Fired Power Plants, D.F.S. Natusch, C.A. Evans, P.K. Hopke, A. Loh and R. Linton, presented to the International Conference on Heavy Metals in the Environment, Toronto, Ontario, Canada, October, 1975.

23.       Comparison of the Preconcentration Methods for Water Analysis by XRF, M.M. Ulrich and P.K. Hopke, presented to the Pittsburgh Conference on Analytical Chemistry and Applied Spectroscopy, March, 1976.

24.       Multielemental Analysis of Physically-Fractionated Sediments, P. K. Hopke, J. D. Sherwood and J. A. Lanahan, presented to the Pittsburgh Conference on Analytical Chemistry and Applied Spectroscopy, March, 1976.

25.       Comparison of Source Identification Techniques for Trace Elements in Ambient Air Particulates, P. K. Hopke, G. E. Gordon, W. H. Zoller and E. S. Gladney, presented to the 172nd Meeting of the American Chemical Society, August, 1975.

26.       Multielemental Characterization of Urban Street Dust, P. K. Hopke, R. E. Lamb and D. F. S. Natusch, presented to 173rd meeting of the American Chemical Society, March, 1977.

27.       The Feasibility of Trace Multielemental Analysis by High Flux 14-MeV Neutron Activation, P. K. Hopke, R. Williams and R. A. Meyer, presented to the 173rd Meeting of the American Chemical Society, August, 1977.

28.       An Apparatus to Study Radon-Airborne Particulate Interactions, J. Jerabek, J. J. Stukel, W. L. Ho, Z. S. Hsu and P. K. Hopke, presented to the 174th National Meeting of the American Chemical Society, August, 1977.

29.       The Use of Multivariate Statistical Techniques to Interpret Multielemental Analyses, P. K. Hopke, presented to the Third International Conference on Nuclear Methods in Environmental and Energy Research, Columbia, MO, October, 1977.

30.       The Use of Microscopic and Bulk Analyses as a Multitechnique Approach to Determine the Sources of Urban Dust, R. W. Linton, P. K. Hopke, D. F. S. Natusch and R. L. Solomon, presented to the Fourth Joint Conference on Sensing of Environmental Pollutants, New Orleans, LA, November, 1977.

31.       Identification of Sources of Elements Found in Household Dusts, P. K. Hopke and D. J. Alpert, presented to the 178th National Meeting of the American Chemical Society, March, 1978.

32.       Analysis of Fly Ash Produced from Combustion of Refuse Derived Fuel and Coal Mixtures, D. F. S. Natusch, D. R. Taylor, M. A. Tompkins, S. A. Kirton, T. Mauney, T. R. Keyser and P. K. Hopke, presented to the Fourth Biennial Rocky Mountain Regional Meeting of the American Chemical Society, Boulder, CO, June, 1978.

33.       Applicability of Factor Analysis to the Study of Source Components in Environmental Systems, D.J. Alpert and P.K. Hopke, National Conference on Environmental Measurements, Denver, November, 1978.

34.       The Adsorption of Radium A to Monodispersed Aerosol, W. L. Ho, P. K. Hopke and J. J. Stukel, presented to the American Nuclear Society Winter Meeting, Washington, November, 1978.

35.       The Kinetics of Attachment of RaA to Airborne Particulate Matter, W. L. Ho, P. K. Hopke and J. J. Stukel, presented to the ACS/CSJ Chemical Congress, Honolulu, April, 1979.

36.       Development of High Flux Fast Neutron Activation Analysis, P. K. Hopke, R. Williams and R. A. Meyer, presented to the ACS/CSJ Chemical Congress, Honolulu, April, 1979.

37.       Factor Analysis Applied to Aerosol Source Resolution for the Regional Air Pollution Study, D. J. Alpert and P. K. Hopke, Symposium on Atmospheric Aerosols, Division of Physical Chemistry, American Chemical Society, 178th National meeting, Washington, September, 1979.

38.       Estimation of the Weight-Dependent Probability of Detecting a Mutagen with the Ames Assay, J.B. Johnston and P.K. Hopke, Conference on Application of Short-Term Bioassays in the Fractionation and Analysis of Complex Environmental Mixtures, Williamsburg, VA, March 1980.

39.       Resolving the Sources of Air Particles for the Regional Air Pollution Study, D.J. Alpert and P.K. Hopke, presented to the Fourth International Conference on Nuclear Methods in Environmental and Energy Research, Columbia, MO, April 1980.

40.       The Feasibility of Trace Multielemental Analysis by 14-MeV Neutron Activation, R.E. Williams, P.K. Hopke, and R.A. Meyer, presented to the Fourth International Conference on Nuclear Methods in Environmental and Energy Research, Columbia, MO, April 1980.

41.       Determination of the Mineral Matter in Coal by Target Transformation Factor Analysis, B.A. Roscoe and P.K. Hopke, presented to the Fourth International Conference on Nuclear Methods in Environmental and Energy Research, Columbia, MO, April 1980.

42.       Analysis of Mineral Phases in Coal Utilizing Factor Analysis, B.A. Roscoe and P.K. Hopke, Atomic and Nuclear Methods in Fossil Energy Research, ANS Topical Meeting, Mayaguez, Puerto Rico, December 1980.

43.       FANTASIA - A Target Transformation Factor Analysis Program for the Apportionment of Sources in Aerosols, D.J. Alpert, B.A. Roscoe, and P.K. Hopke, presented at Environmetrics '81, Washington, April 1981.

44.       Mutagenicity of Chicago Sewage Sludge in Zea mays and Tradescantia paludosa, M.J. Plewa, E.D. Wagner, S. Wood, and P.K. Hopke, presented to 12th Annual Meeting of the Environmental Mutagen Society, San Diego, March 1981.

45.       Mutagenicity of Chicago Municipal Sewage Sludge in the Salmonella/Microsome Reverse Mutation Test, D.L. Weaver, P.K. Hopke, J.B. Johnston, and M.J. Plewa, presented to 12th Annual Meeting of the Environmental Mutagen Society, San Diego, March 1981.

46.       The Application of Factor Analysis to Source Apportionment of Aerosol Mass, C.K. Liu, B.A. Roscoe, and P.K. Hopke, American Industrial Hygiene Conference, Portland, OR, May 1981.

47.       Procedure for Multielement Analysis Using High-Flux Fast-Neutron Activation, R.E. Williams, P.K. Hopke, and R.A. Meyer, Sixth International Conference on Modern Trends in Activation Analysis, Toronto, June 1981.

48.       Identification of Noise in Linear Data Sets by Factor Analysis, B.A. Roscoe and P.K. Hopke, Sixth International Conference on Modern Trends in Activation Analysis, Toronto, June 1981.

49.       Limits in Charged Particle Collection by Charged Drops, K.H. Leong, J.J. Stukel, and P.K. Hopke, Paper No. 81-63.7, 74th Annual Meeting of the Air Pollution Control Association, June 1981.

50.       Production of Condensation Nuclei in Aerosol Neutralizers, K.H. Leong, H.C. Wang, P.K. Hopke, and J.J. Stukel, presented to first meeting of Aerosol Research Association, Santa Monica, CA, February 1982.

51.       Mutagenicity of Municipal Sewage Sludge in the Salmonella/Microsome Reverse-Mutation Test, D.L. Weaver, P.K. Hopke, and M.J. Plewa, presented to the Environmental Mutagen Society, Boston, Environmental Mutagenesis 4:365 (1982).

52.       Analysis of the Genotoxicity of Municipal Sewage Sludge with SCE's in Human Lymphocytes, S.A. Engl, P.K. Hopke, and M.J. Plewa, presented to the Environmental Mutagen Society, Boston, Environmental Mutagenesis 4:366 (1982).

53.       Analysis of Municipal Sewage Sludge for the Induction of Micro-nuclei in Tradescantia Paludosa, W. Schy, R. Garton, P.K. Hopke, and M.J. Plewa, presented to the Environmental Mutagen Society, Boston, Environmental Mutagenesis 4:366 (1982).

54.       The Use of Factor Analysis in Source Determinations for Particulate Emissions, P.K. Hopke, presented to the 13th Annual Meeting of the Fine Particle Society, Chicago, April 1982.

55.       Target Transformation Factor Analysis of Wind Trajectory Selected Samples, S.N. Chang, P.K. Hopke, S.W. Rheingrover, and G.E. Gordon, Paper No. 82-23.1, 75th National Meeting of the Air Pollution Control Association, June 1982.

56.       Application and Verification Studies of Target Transformation Factor Analysis in Aerosol Source Apportionment, P.K. Hopke, K.G. Severin, and S.N. Chang, APCA Specialty Conference on Receptor Models Applied to Contemporary Pollution Problems, Danvers, MA, October 1982.

57.       Time Series Analysis for Identification of Particle Emission Sources, C.S. Hwang and P.K. Hopke, APCA Specialty Conference on Receptor Models Applied to Contemporary Pollution Problems, Danvers, MA, October 1982.

58.       Electrostatic and Inertial Collection of Particles by Falling Drops, K.H. Leong, A. Renta-Babb, J.J. Stukel, and P.K. Hopke, presented to the 1983 Annual Meeting of the American Association for Aerosol Research, College Park, MD, April 1983.

59.       Collection of Hydrophilic and Hydrophobic Charged Submicron Particles by Charged Water Droplets, H.C. Wang, K.H. Leong, J.J. Stukel, and P.K. Hopke, presented to the 1983 Annual Meeting of the American Association for Aerosol Research, College Park, MD, April 1983.

60.       The Effects of Thermophoresis and Diffusiophoresis on the Collection of Charged Submicron Particles by Charged Droplets, H.C. Wang, K.H. Leong, J.J. Stukel, and P.K. Hopke, presented to the 1983 Annual Meeting of the American Association for Aerosol Research, College Park, MD, April 1983.

61.       The Deposition of Submicron Particles on Rough Wall Surfaces in Fully Developed Turbulent Flow, J.S. Burger, K.H. Leong, J.J. Stukel, and P.K. Hopke, presented to the 1983 Annual Meeting of the American Association for Aerosol Research, College Park, MD, April 1983.

62.       The Application of Multivariate Source/Receptor Models in Aerosol Mass Apportionment, P.K. Hopke, presented to the 6th World Congress on Air Quality, Paris, May 1983.

63.       Implications of Incomplete Sampling on a Statistical Form of the Ambient Air Quality Standard for Particulate Matter, J.E. Davidson, and P.K. Hopke, presented to the 76th National Meeting of the Air Pollution Control Association, Atlanta, June 1983.

64.       Environmental Properties of RaA (²¹⁸Po), S.D. Goldstein, H. Beck, and P.K. Hopke, presented to the 186th National Meeting of the American Chemical Society, Washington, DC, August 1983.

65.       The Effect of Soil Application on the Mutagenic Activity of Waste Water, P.L. Stapleton, M.J. Plewa, P.K. Hopke, and P.A. Dowd, presented to the 15th Annual Meeting of the Environmental Mutagen Society, March 1984.

66.       Deposition of Submicron Particles on Rough Wall Surfaces in Fully Developed Turbulent Flow, L.A. Hahn, P.K. Hopke, J.J. Stukel, and K.H. Leong, presented to the 187th National Meeting of the American Chemical Society, St. Louis, MO, April 1984.

67.       Studies of the Atmospheric Behavior of ²¹⁸Po, S.D. Goldstein and P.K. Hopke, presented to the 187th National Meeting of the American Chemical Society, St. Louis, MO, April 1984.

68.       Levantine Trade in the Early Bronze Age: From Pots to People, D. Esse and P.K. Hopke, presented to Archaeometry '84, Washington, D.C., May 1984.

69.       Composition of Medieval Limoges Enamel, W.S. Williams, P.K. Hopke, and H. Maguire, presented to Archaeometry '84, Washington, D.C., May 1984.

70.       Obsidian Exchange in Postclassic Central Mexico: New Data from Morelos, M.E. Smith, J.H. Sorenson, and P.K. Hopke, presented to Archaeometry '84, Washington, D.C., May 1984.

71.       Receptor Source Apportionment Models for Three Fractions of Respirable Particulate Organic Matter, J.M. Daisey and P.K. Hopke, presented to the 77th National Meeting of the Air Pollution Control Association, San Francisco, June 1984.

72.       Inertial and Electrostatic Collection of Charged Particles by a Fixed Collector, H.C. Wang, J.J. Stukel, K.H. Leong, and P.K. Hopke, presented to the 77th National Meeting of the Air Pollution Control Association, San Francisco, June 1984.

73.       Role of Electrostatic Forces in High Velocity Particle Collection Devices, H.C. Wang, J.J. Stukel, K.H. Leong, and P.K. Hopke, presented at the Fifth Symposium on the Transfer and Utilization of Particulate Control Technology, Kansas City, MO, August 1984.

74.       Study of the Use of Linear Programming Methods in Receptor Modeling, M.D. Cheng and P.K. Hopke, presented to the First International Aerosol Conference, Minneapolis, MN, October, 1984.

75.       Particle Collection by a Fixed Collector Considering the Combined Effects of Inertia and Charge, H.C. Wang, J.J. Stukel, K.H. Leong, and P.K. Hopke, presented to the First International Aerosol Conference, Minneapolis, MN, October, 1984.

76.       Deposition of Submicron Particles on Rough Walls from Turbulent Air Streams, L.A. Hahn, J.J. Stukel, K.H. Leong, and P.K. Hopke, presented to the First International Aerosol Conference, Minneapolis, MN, October, 1984.

77.       Turbulent Air Flow Over Rough Surfaces I. Mean Flow Parameters, K. Nourmohammadi, P.K. Hopke, and J.J. Stukel, presented to the Winter Annual Meeting of the American Society of Mechanical Engineers, December 1984.

78.       Stability Tests for Linear Programming Procedure and Least-Squares Procedure to Aerosol Mass Apportionment, M.D. Cheng and P.K. Hopke, presented to the APCA International Specialty Conference on Receptor Methods for Source Apportionment - Real World Issues and Applications, Williamsburg, VA, March 1985.

79.       FANTASIA - Target Transformation Factor Analysis on a Microcomputer, P.K. Hopke, presented to the APCA International Specialty Conference on Receptor Methods for Source Apportionment -Real World Issues and Applications, Williamsburg, VA, March 1985.

80.       AMPUC - Ambient Air Monitoring Program in Urbana-Champaign, S. Dharmavaram, P.K. Hopke, and W. Pirkle, presented to the 78th Annual Meeting of the Air Pollution Control Association, Detroit, MI, June 1985.

81.       Linear Programming Procedure for Aerosol Mass Apportionment, M.D. Cheng and P.K. Hopke, presented to the 78th Annual Meeting of the Air Pollution Control Association, Detroit, MI, June 1985.

82.       Multivariate Analysis of CCSEM Data, D.S. Kim, P.K. Hopke, D.L. Massart, L. Kaufman, and G. Casuccio, presented to the 78th Annual Meeting of the Air Pollution Control Association, Detroit, MI, June 1985.

83.       Continuous Monitoring Method of the Neutralization Phenomena of Polonium-218, K.D. Chu and P.K. Hopke, presented to the 78th Annual Meeting of the Air Pollution Control Association, Detroit, MI, June 1985.

84.       Application of Multivariate Statistical Analysis for Source Identification of Air Pollutants, P.K. Hopke, presented to the VIIth International Conference on Computers in Chemical Research and Education, Garmisch-Partenkirchen, West Germany, June 1985.

85.       Clustering of Large Data Set Containing Outliers, L. Kaufman, P.R. Rousseeuw, P.K. Hopke, D.L. Massart, and M.P. Derde, presented to the 1985 Joint Statistical Meetings, American Statistical Society, Las Vegas, August 1985; ASA 1985 Proceedings of the Statistical Computing Section, pp. 108-112.

86.       Removal of Rare Gases from Large Volume Airstreams, P.K. Hopke, K.H. Leong, C. Lewis, and R. Jebackumar, presented to the European Conference on Gaseous Effluent Treatment in Nuclear Installations, Luxembourg, October 1985.

87.       Mobility Analysis System for Studying ²¹⁸Po Cluster Formation, P.K. Hopke and K.D. Chu, presented to the National Meeting of the American Association for Aerosol Research, Albuquerque, NM, November 1985.

88.       Multielemental and Multivariate Analysis of Terra Sigillata, S. Wisseman, P.K. Hopke, and E. Schindler-Kaudelka, presented to the Annual Meeting of the Archaeological Institute of America, Washington, D.C., December 1985.

89.       Conceptual Design of a System to Characterize the Radioactive Ultrafine Aerosol, P.K. Hopke, presented to the APCA Specialty Conference on Indoor Radon, Philadelphia, PA, February 1986.

90.       The Development of a Mobility Analyzer for Studying Neutralization and Particle Production Phenomena Related to Radon Progeny, L.M. Kulju, K.D. Chu, and P.K. Hopke, presented to the 191st American Chemical Society National Meeting, New York City, April 1986.

91.       The Induction of an Ultrafine Aerosol by Radon Radiolysis, K.D. Chu, P.K. Hopke, E.O. Knutson, K.W. Tu, R.F. Holub, and R.F. Droullard, presented to the 191st American Chemical Society National Meeting, New York City, April 1986.

92.       The Feasibility of Activated Charcoal for Indoor Radon Control, R. Bocanegra and P.K. Hopke, presented to the 191st American Chemical Society National Meeting, New York City, April 1986.

93.       Multielemental and Multivariate Analysis of Italian Terra Sigillata in the World Heritage Museum, University of Illinois at Urbana-Champaign, S. Wisseman, P.K. Hopke, and E. Schindler-Kaudelka, presented to the 1986 International Symposium on Archaeometry, Athens, Greece, May 1986.

94.       Provenance of Certain Mississipian Vessel Forms from the U.S.A. Using INAA and Non-Hierarchical Clustering Techniques, T. Riley, P. Hopke, R. Martin, and J. Porter, presented to the 1986 International Symposium on Archaeometry, Athens, Greece, May 1986.

95.       The Interpretation of Multielemental INAA Data Using Pattern Recognition Methods, P.K. Hopke, R.C. Martin, and M. Evins, presented to the 7th International Conference on Modern Trends in Activation Analysis, Copenhagen, Denmark, June 1986.

96.       The Detection and Measurement of the Activity Size Distribution of Ultrafine Particles, L.M. Kulju, M. Ramamurthi, and P.K. Hopke, presented to the 79th Annual Meeting of the Air Pollution Control Association, Minneapolis, MN, June 1986.

97.       Particle Class Analysis for Coal-Fired Power Plant Emissions, D.S. Kim, P.K. Hopke, and G. Casuccio, presented to the 79th Annual Meeting of the Air Pollution Control Association, Minneapolis, MN, June 1986.

98.       Optimal Parameters for the Adsorption of Radon on Activated Charcoal, R. Bocanegra and P.K. Hopke, presented to the 79th Annual Meeting of the Air Pollution Control Association, Minneapolis, MN, June 1986.

99.       Continuous Monitoring Method in the Neutralization Rate Analyses of Polonium-218, K.D. Chu and P.K. Hopke, presented to the 79th Annual Meeting of the Air Pollution Control Association, Minneapolis, MN, June 1986.

100.     A Detailed Study of NBS Simulated Data Sets by Using Chemical Mass Balance Receptor Models, M.D. Cheng and P.K. Hopke, presented to the 79th Annual Meeting of the Air Pollution Control Association, Minneapolis, MN, June 1986.

101.     AMPUC - Ambient Air Monitoring in Urbana-Champaign: Stage II, S. Dharmavaram, P.K. Hopke, and W. Pirkle, presented to the 79th Annual Meeting of the Air Pollution Control Association, Minneapolis, MN, June 1986.

102.     Multivariate Analysis of CCSEM Auto Emission Data, D.S. Kim, P.K. Hopke, D.L. Massart, L. Kaufman, and G.S. Casuccio, presented to the Second International Symposium on Highway Pollution, London, July 1986.

103.     The Use of Fractal Dimension Derived from their SEM Image to Characterize Individual Particles, P.K. Hopke, presented to the 10th International Symposium on Microchemical Techniques, Antwerp, Belgium, August 1986.

104.     Elemental Analysis of Medieval Limoges Enamel, P.K. Hopke, H. Maguire, and W.S. Williams, presented to the 193rd American Chemical Society National Meeting, Denver, CO, April 1987.

105.     Multivariate Analysis of Multielemental Patterns in Turkish Pottery, P.K. Hopke and M.A. Evins, presented to the 193rd American Chemical Society National Meeting, Denver, CO, April 1987.

106.     Use of a Rule-Building Expert System for Classifying Single Particles Based on SEM Analysis, P.K. Hopke, D.S. Kim, R.J. Lee, and G.S. Casuccio, presented to the EPA/APCA Symposium on Measurement of Toxic and Related Air Pollutants, Raleigh, NC, May 1987.

107.     Mechanism of Formation of Ultrafine Particles by Radon Radiolysis, L. Kulju and P.K. Hopke, presented to the Semi-Annual Meeting of the Midwest Association for Cloud and Aerosol Physics, Argonne, IL, May 1987.

108.     Measurement of the Activity Size Distribution of Ultrafine Particles in Indoor Air, M. Ramamurthi and P.K. Hopke, presented to the Semi-Annual Meeting of the Midwest Association for Cloud and Aerosol Physics, Argonne, IL, May 1987.

109.     Effects of Measurement Errors and Collinearity on Aerosol Source Apportionment Models, M.D. Cheng and P.K. Hopke, presented to the 80th Annual Meeting of the Air Pollution Control Association, New York, NY, June 1987.

110.     Source Composition Profiles from CCSEM, D.S. Kim, P.K. Hopke, G. Casuccio, and R. Lee, presented to the 80th Annual Meeting of the Air Pollution Control Association, New York, NY, June 1987.

111.     Characterization of Dry Deposition at a Rural Site in the State of Illinois, S. Dharmavaram and P.K. Hopke, presented to the 80th Annual Meeting of the Air Pollution Control Association, New York, NY, June 1987.

112.     The Neutralization Behavior of Po-218 in Indoor Air, P.K. Hopke and K.D. Chu, presented to the 4th International Conference on Indoor Air Quality and Climate, West Berlin, Germany, August 1987.

113.     Formation of Ultrafine Particles by Radon Radiolysis, P.K. Hopke, K.D. Chu, and L. Kulju, presented to the 1987 Annual Meeting of the American Association for Aerosol Research, Seattle, WA, September 1987.

114.     A Study of the Relationship Between Trace Elements and Secondary Sulfate, in Submicron Atmospheric Particles, Observed at a Rural Site, S. Dharmavaram and P.K. Hopke, presented to the 1987 Annual Meeting of the American Association for Aerosol Research, Seattle, WA, September 1987.

115.     Development of Multivariate Analysis Procedures for Ontario Air Quality Data, P.K. Hopke and Y. Zeng, presented to the 1987 Technology Transfer Conference, Toronto, Canada, November 1987.

116.     The Use of CCSEM and Microimaging to Study Source/Receptor Relationships, G.S. Casuccio, A.J. Schwoeble, B.C. Henderson, R.J. Lee, P.K. Hopke, and G.M. Sverdrup, presented to the APCA Specialty Conference on Receptor Models in Air Resources Management, San Francisco, CA, February 1988.

117.     Three-Mode Factor Analysis: A New Multivariate Method for Analyzing Spatial and Temporal Composition Variation, Y. Zeng and P.K. Hopke, presented to the APCA Specialty Conference on Receptor Models in Air Resources Management, San Francisco, CA, February 1988.

118.     The Source Apportionment of PM10 in South Chicago, P.K. Hopke, W. Wlaschin, and S. Landsberger, presented to the APCA Specialty Conference on Receptor Models in Air Resources Management, San Francisco, CA, February 1988.

119.     Neutron Activation Analysis of Prehistoric Ceramics from the Upper Missouri River Drainage, J. Isaacson, T. Riley, P. Hopke, and P. Lee, presented to Archaeometry '88, Toronto, Canada, May 1988.

120.     The Use of Fractal Dimension to Characterize Individual Airborne Particles, P.K. Hopke, Y.D. Adewuyi, G. Casuccio, and R. Lee, presented to the 1988 EPA/APCA Symposium on Measurement of Toxic and Related Air Pollutants, Raleigh, NC, May 1988.

121.     Measurement of the Activity Size Distributions of Radiolytic Ultrafine Particles, M. Ramamurthi and P. Hopke, presented at the 1988 American Industrial Hygiene Conference, San Francisco, CA, May 1988.

122.     The Use of Constrained Least-Squares Regression to Solve the Chemical Mass Balance Problem, D. Wang and P.K. Hopke, presented to the 81st Annual Meeting of the Air Pollution Control Association, Dallas, Texas, June 1988.

123.     Optimization of Operating Parameters for Nonconventional Diffusion Batteries by the Convolution Algorithm Simulations, M. Ramamurthi and P. Hopke, presented at the 19th Annual Fine Particle Society Meeting, Santa Clara, CA, July 1988.

124.     Heavy Metal Contamination in Rock River (Illinois) and Tributary Creek Sediments, B. Golchert, S. Landsberger, and P.K. Hopke, presented at Trace Metals in Lakes, Burlington, Canada, August 1988.

125.     Production of Ultrafine Particles by Radon Radiolysis, P.K. Hopke and M. Ramamurthi, presented at the 12th International Conference on Atmospheric Aerosols and Nucleation, Vienna, Austria, August 1988.

126.     Detection and Measurement of Ultrafine Activity Size Distributions Associated with Radon Decay Products, M. Ramamurthi and P.K. Hopke, presented at the 1988 Annual Meeting of the American Association for Aerosol Research, Chapel Hill, NC, October 1988.

127.     Formation of Ultrafine Aerosols (0.5-20 nm) from Radon Radiolysis, P.K. Hopke, M. Ramamurthi, and R. Strydom, presented at the 1988 Annual Meeting of the American Association for Aerosol Research, Chapel Hill, NC, October 1988.

128.     A Study on the Sources of Acid Precipitation in Ontario, Canada, P.K. Hopke and Y. Zeng, presented at the 1988 OME Environmental Research: Technology Transfer Conference, Toronto, Canada, November 1988.

129.     Rotation of Factors Produced by Three-Mode Factor Analysis in Receptor Modeling, Y. Zeng and P.K. Hopke, presented at 1989 EPA/AWMA Symposium on Measurement of Toxic and Related Air Pollutants, Raleigh, NC, May 1989.

130.     Receptor Modeling for PM₁₀ Source Apportionment in Southeast Chicago, S.J. Vermette, C.W. Sweet, D.F. Gatz, S. Landsberger, and P.K. Hopke, Paper No. 89-33.7, presented at the 82nd Annual Meeting of the Air Pollution Control Association, Anaheim, CA, June 1989.

131.     The CT-121 FGD System Monitoring Project of the University of Illinois Abbott Plant -- A Preliminary Evaluation, A.V. Someshwar, S. Bhagat, P.K. Hopke, G. Maller, and G.E. Stevens, Paper No. 89-18.3, presented at the 82nd Annual Meeting of the Air Pollution Control Association, Anaheim, CA, June 1989.

132.     Rotation of Factors Produced by Three-Mode Factor Analysis in Receptor Modeling, Y. Zeng and P.K. Hopke, Paper No. 89-103.9, presented at the 82nd Annual Meeting of the Air Pollution Control Association, Anaheim, CA, June 1989.

133.     Source Apportionment for Airborne Particles in Granite City, Illinois, D.M. Glover, P.K. Hopke, D.R. D'Auben, S.J. Vermette, and S. Landsberger, Paper No. 89-103.4, presented at the 82nd Annual Meeting of the Air Pollution Control Association, Anaheim, CA, June 1989.

134.     The Measurement of Size Fractions of Radon Progeny, P.K. Hopke, presented at the Technical Measurements Center, operated by UNC Geotech for the Grand Junction Project Office, Grand Junction, Colorado, September 1989.

135.     Formation of Ultrafine Aerosols (0.5-20 nm) from Radon Radiolysis. P.K. Hopke and M. Ramamurthi, R. Strydom, K.W. Tu, E.O. Knutson, R.F. Holub, W. Winklmayr, W. Marlow, and S.C. Yoon, presented at the American Association for Aerosol Research, Reno, NV. October 1989.

136.     Comparison of the Source Locations of Particles and Acid Precipitation in Ontario, Canada, Y. Zeng and P.K. Hopke, presented at the American Association for Aerosol Research, Reno, NV. October 1989.

137.     Verification of Penetration Theories Using A Monodisperse Cluster Aerosol, (D=0.078 + 0.003 cm²/s, d_p ≈ 0.6 nm), M. Ramamurthi and P.K. Hopke, presented at the American Association for Aerosol Research, Reno, NV. October 1989.

138.     DB-CNC Measurements of Radiolytic Ultrafine Aerosol Size Distributions, dp 〉 5 nm, M. Ramamurthi and P.K. Hopke, presented at the American Association for Aerosol Research, Reno, NV. October 1989.

139.     Radon Decay Product Activity Size Distribution Measurement Methods - A Laboratory Intercomparison, M. Ramamurthi, P.K. Hopke, R. Strydom, K.W. Tu, E.O. Knutson, R.F. Holub, W. Winklmayr, W. Marlow, and S.C. Yoon, presented at the American Association for Aerosol Research, Reno, NV. October 1989.

140.     An Automated, Semi-Continuous Graded Screen Array (ACS-GSA) System for Indoor Radon Decay Product Activity Size Distribution Measurements, M. Ramamurthi and P.K. Hopke, presented at the American Association for Aerosol Research, Reno, NV. October 1989.

141.     Identification of the Source Regions for Acidic Particles and Precipitation in Ontario, Canada, Y. Zeng and P.K. Hopke, presented at SETAC 10th Annual Meeting, Toronto, Ontario, October 1989.

142.     Reception Modeling, P.K. Hopke, presented at 1989 Conference for Mathematics in Chemistry Meeting, Texas A & M University in College Station, Texas, November, 1989.

143.     Source Identification and Apportionment for Airborne Particles in Hamilton, Ontario, Y. Zeng and P.K. Hopke, presented at the 1989 Technology Transfer Conference Toronto, Ontario, November 1989.

144.     Comparison of the Source Locations of Acidic Particles and Precipitation in Ontario, Y. Zeng and P.K. Hopke, presented at the 1989 Technology Transfer Conference, Toronto, Ontario, November 1989.

145.     Sampling and Analytical Methodologies for Instrumental Neutron Activation Analysis of Airborne Particulate Matter, S. Landsberger, V.G. Vermette, and P.K. Hopke, presented at International Atomic Energy Agency Regional Seminar for Asia and the Pacific on Nuclear Research Centres in the Service of Environmental Research and Service-Client-Sponsor Relationships, Jakarta, Indonesia, November 1989.

146.     An Automated, Semi-Continuous System for Measuring Indoor Radon Progeny Activity-Weighted Size Distributions, D_p: 0.5-500 NM, C.S. Li, P.K. Hopke, and M. Ramamurthi, presented at 1990 EPA/A&WMA International Symposium on Measurement of Toxic and Related Pollutants, April, 1990.

147.     Comparison of the Source Locations of Particles and Acid Precipitation in Ontario, Canada, Y. Zeng and P.K. Hopke, presented at 1990 EPA/A&WMA International Symposium on Measurement of Toxic and Related Pollutants, Raleigh, N.C., April, 1990.

148.     The Use of Fractal Dimension to Characterize Individual Airborne Particles, P.K. Hopke, G.S. Casuccio, R.J. Lee, and J. Mershon, Scientific Computing and Automation Conference, Maastricht, The Netherlands, June 1990.

149.     Use of a Rule-Building Expert System for Classifying Single Particles Based on SEM Analysis, P.K. Hopke and Y. Mi, Scientific Computer and Automation Conference, Maastricht, The Netherlands, June 1990.

150.     Potential for Forming Ultrafine Aerosols from Indoor Organic Vapors by Radon Decay Radiolysis-Induced Reactions, J.M. Daisey and P.K. Hopke, presented at AAAR 1990 Annual Meeting, PA., June, 1990.

151.     Intercomparisons of Radon Progeny Size Distribution Measurement Techniques in an Underground Research Uranium Mine, M. Ramamurthi, R. Strydom, and P.K. Hopke, presented at AAAR 1990 Annual Meeting, PA., June, 1990.

152.     Production of Sulfuric Acid Aerosol by Radiolytic Conversion of SO₂, K. Karpen-Hayes and P.K. Hopke, presented at AAAR 1990 Annual Meeting, PA., June, 1990.

153.     Measurement of the Effect of SO₂ on the Polonium-218 Ion Mobility Spectrum by Alpha-Track Detection, S.C. Yoon, W.H. Marlow, P.K. Hopke, and M. Ramamurthi, presented at AAAR 1990 Annual Meeting, PA., June, 1990.

154.     Particle Class Balance for Apportioning Aerosol Mass with Size Segregation Scheme, D-S, Kim and P.K. Hopke, Air and Waste Management Association, Pittsburgh, PA, June 1990.

155.     Field Evaluation and Health Assessment of Air Cleaners in Removing Radon Decay Products, C.S. Li, M. Ramamurthi, P.K. Hopke, K. Gadsby, A. Cavallo, and R. Sokolow, presented at AAAR 1990 Annual Meeting, PA., June, 1990.

156.     Particle Size Distribution of Various Ambient Aerosol Sources, K. Shah, W. Li and P.K. Hopke, presented at the American Chemical Society Northeast Regional Meeting, June, 1990.

157.     The Generation of Particle with Vibrating Reed Aerosol Generator, B. Shah and P.K. Hopke, presented at the American Chemical Society Northeast Regional Meeting, June, 1990.

158.     Analysis of Atmospheric Chemical Data by Projection Pursuit, D.M. Glover and P.K. Hopke, presented at the American Chemical Society Northeast Regional Meeting, June, 1990.

159.     Modeling Radon Progeny Size Distribution in An Aerosol Chamber, M. Lao, K. Karpen-Hayes, and P.K. Hopke, presented at the American Chemical Society Northeast Regional Meeting, June, 1990.

160.     Particle Class Balance for Apportioning Aerosol Mass with Size Segreation Scheme, D.S. Kim, and P.K. Hopke, Air & Waste Management Association, Pittsburgh Pennsylvania, June 1990.

161.     Air Cleaning and Radon Decay Product Mitigation: A Re-evaluation, P.K. Hopke, C.S. Li and M. Ramamurthi, presented at the 5th International Conference on Indoor Air Quality and Climate, July, 1990.

162.     Measurement of the Size Distributions of Radon Progeny in Indoor Air, P.K. Hopke, M. Ramamurthi and C.S. Li, presented at Third International Aerosol Conference, Kyoto, Japan, September 1990.

163.     The Effect of Air Cleaning on the Size of the Indoor Radioactive Aerosol, P.K. Hopke, C.S. Li, M. Ramamurthi and B. Litt, presented at Third International Aerosol Conference, Kyoto, Japan, September 1990.

164.     Use of the Potential Source Contribution Function to Trace the Origins of Airborne Contaminants, P.K. Hopke, Y. Zeng, and M.D. Cheng, presented to Environsoft '90, Montreal, Canada, September 1990.

165.     Air Cleaning and Radon Decay Product Mitigation, P.K. Hopke, C.-S. Li, and M. Ramamurthi, presented at the 29th Hanford Symposium on Health and the Environment, Richland, Washington, October 1990.

166.     Measurement of Size Distributions of Indoor Radioactive Aerosol, C.S. Li and P.K. Hopke, presented at the 29th Hanford Symposium on Health and the Environment, Richland, Washington, October 1990.

167.     Further Developments in the Analysis of Three Dimensional Environmental Data, P.K. Hopke and Y. Zeng, presented at the Environmental Research: 1990 Technology Transfer Conference, Toronto, Canada, November 1990.

168.     An Attempt to Identify Potential Source Regions of Airborne Pollutants Observed at Canadian High Arctic Using 3-Layer PSCF Technique, M.D. Cheng, P.K. Hopke, S. Landsberger, and L.A. Barrie, presented at to The Seventh Joint Conference on Applications of Air Pollution Meteorology, New Orleans, Louisiana, January 1991.

169.     Analysis of the Performance of the Radon Mitigation System Based on Charcoal Bed, P. Wasiolek, N. Montassier, P.K. Hopke, and R. Abrams, presented at the 1991 Symposium on Radon and Radon Reduction Technology, Philadelphia, Penn, April, 1991.

170.     Intercomparison of Activity Size Distribution Measurements With Manual and Automated Diffusion Batteries - Field Test, P.K. Hopke, P. Wasiolek, E.O. Knutson, K.W. Tu, C. Gogolak, A. Cavallo, K. Gadsby, and D. Van Cleef, presented at the 1991 Symposium on Radon and Radon Reduction Technology, Philadelphia, Penn, April, 1991.

171.     Source of Trace Elements Observed in the Arctic Aerosol, P.K. Hopke, M.D. Cheng, S. Landsberger, and L.A. Barrie, presented at American Chemical Society National Meeting, Atlanta, GA, April, 1991.

172.     Identification of Source Regions for Trace Constituents of Particles and Precipitation Observed in Southern Ontario, P.K. Hopke, M.D. Cheng, and Y. Zeng, presented at American Chemical Society National Meeting, Atlanta, GA, April, 1991.

173.     The Field Measurements of the Activity-Weighted Size Distributions of Radon Decay Products, P. Wasiolek, N. Montassier, and P.K. Hopke, presented at EPA/AWMA Symposium on the Measurement of Toxic and Related Air Pollutants, Durham, NC, May, 1991.

174.     Target Transformation Factor Analysis of Indoor Polynuclear Aromatic Hydrocarbons Collected in Columbus, Ohio, M.D. Cheng, P.K. Hopke, and N. Wilson, presented at EPA/AWMA Symposium on the Measurement of Toxic and Related Air Pollutants, Durham, NC, May, 1991.

175.     A New Receptor Model Developed by Modifying a Direct Trilinear Decomposition, Y. Zeng and P.K. Hopke, presented at EPA/AWMA Symposium on the Measurement of Toxic and Related Air Pollutants, Durham, NC, May, 1991.

176.     The Efficacy of the Air Cleaning Systems in Controlling Indoor Radon Decay Products, C.-S. Li and P.K. Hopke, presented at Air & Waste Management Meeting, Vancouver, June, 1991.

177.     Penetration of Ultrafine Particles of ²¹⁸Po Through Human Nasal and Oral Cast Models, N. Montassier, K. Karpen-Hayes, P.K. Hopke, and D.L. Swift, presented at the Fifth International Symposium on the Natural Radiation Environment, Salzburg, September, 1991.

178.     Measurement of Activity-Weighted Size Distributions of Radon Decay Products in Normally Occupied Homes, P.K. Hopke, P. Wasiolek, N. Montassier, A. Cavallo, K. Gadsby and R. Socolow, presented at the Fifth International Symposium on the Natural Radiation Environment, Salzburg, September, 1991.

179.     The Development of Target Transformation Factor Analysis as A Receptor Model, P.K. Hopke, presented at American Association for Aerosol Research, Traverse City, Michigan, October, 1991.

180.     The Development of a Sampler to Remove Particles From Clean Room Surfaces, P.K. Hopke, N. Montassier and D.W. Cooper, presented at American Association for Aerosol Research, Traverse City, Michigan, October, 1991.

181.     Size Distributions of Radon Decay Products in Domestic Environments, P.K. Hopke and P. Wasiolek, presented at American Association for Aerosol Research, Traverse City, Michigan, October, 1991.

182.     The Development and Testing of A System for the Determination of the Hygroscopic Growth of Aerosols, N. Montassier, W. Li and P.K. Hopke, presented at American Association for Aerosol Research, Traverse City, Michigan, October, 1991.

183.     The Application of Direct Trilinear Decomopsition (DTD) To Real Airborne Particle Composition Data, P.K. Hopke, M.D. Cheng and Y. Zeng, presented at the Technology Transfer Conference, Toronto, Ontario, November 1991.

184.     Analysis of Airborne Particulate Chemical Data by Projection Pursuit, D.M. Glover and P.K. Hopke, presented at American Chemical Society Meeting, San Francisco, CA, April 1992.

185.     The Use of Chemical and Meteorological Information to Infer Emission Sources of Airborne Particulate Matter in the Los Angeles, CA area, P.K. Hopke, M.D. Cheng, and N. Gao, presented at the American Chemical Society Meeting, San Francisco, CA, April 1992.

186.     Evaluation of The Effectiveness of Several Types of Air Cleaners in Reducing the Hazards of Indoor Radon Decay Products, N. Montassier, P.K. Hopke, Y. Shi, P. Wasiolek, and B. McCallum, presented at the 1992 International Symposium on Measurement of Toxic Related Pollutants, Durham, NC, May 1992.

187.     Evaluation of The Effectiveness of Several Types of Air Cleaners in Reducing the Hazards of Indoor Radon Decay Products, N. Montassier, P.K. Hopke, Y. Shi, P. Wasiolek, and B. McCallum, presented at International Radiation Protection Association, Montreal, Canada, May 1992.

188.     Measurement of Concentration and Size Distribution of Radon Decay Products in Homes using Air Cleaners, N. Montassier, P. Wasiolek, P.K. Hopke, and B. McCallum, presented at the Air and Waste Management Association Annual Meeting, Kansas City, MO, June 1992.

189.     Tracing Atmospheric Acidic Species to Source Locations in SoCAB, M.D. Cheng and P.K. Hopke, presented at the Air and Waste Management Association Annual Meeting, Kansas City, MO, June 1992.

190.     Application of Receptor Modeling Methods for Airborne Acidic Species Collected in SCAQS, 1987, N. Gao, M.D. Cheng, and P.K. Hopke, presented at Chemometrics in Analytical Chemistry Conference Montreal, Canada, July 1992.

191.     Qualitative Determination of Source Regions of Long-Range Transported Aerosol Using Data Collected at Canadian High Arctic, M.D. Cheng, P.K. Hopke, A. Rippe, S. Landsberger, L. Barrie, presented at the 5th Symposium on Arctic Air Chemistry, Copenhagen, Denmark, (1993).

192.     A Radon Progeny Lung Dose Monitor, H.A. Wright G.S. Hurst, S.R. Hunter, and P.K. Hopke, presented at the International Symposium on Radon and Radon Reduction Technology, Minneapolis, Minnesota, September 1992.

193.     Continuous Measurement of the Radon Concentration in Water Using Electret Ion Chamber Method, P.K. Hopke, S.K. Dua, and P. Kotrappa, presented at the International Symposium on Radon and Radon Reduction Technology, Minneapolis, Minnesota, September 1992.

194.     Investigation of Source-Receptor Relationships for Airborne Acidic Species Collected in SCAQS, N. Gao, M.D. Cheng and P.K. Hopke presented at the American Association for Aerosol Research Annual Meeting, San Francisco, CA, October 1992.

195.     Use of Meteorological Data In Chemical Receptor Model for Source Identification, M.D. Cheng and P.K. Hopke, presented at the American Association for Aerosol Research Annual Meeting, San Francisco, CA, October 1992.

196.     Identification of the Locations of Trace Elements Found In Particles and Precipitation, P.K. Hopke and N. Gao, presented at the Environment Research & Technology Conference, Toronto, Canada, November 1992.

197.     Evaluation of Room Air Cleaners for the Reduction of Exposure and Dose to Indoor Radon Progeny, P.K. Hopke, B. Jensen, N. Montassier, and P. Wasiolek, presented at the First International Workshop on Indoor Radon Remediation, Rimini, Italy, June 27 to July 2, 1993.

198.     Hygroscopic Growth of Particles from Indoor Sources, P.K. Hopke, W, Li, and S.K. Dua, presented at the Sixth International Conference on Indoor Air Quality and Climate, Helsinki, Finland, July 4-8, 1993.

199.     Applications of Three-Way PCA to Environmental Data Sets, P.K. Hopke, First Conference on Three-Way Methods in Chemistry, Epe, The Netherlands, August 1993.

200.     Electret Ion Chamber Method for Continuous Measurement of Concentration of Radon in Water, P. Kotrappa, S.K. Dua, and P.K. Hopke, presented at the 1993 AARST International Symposium on Radon, Denver, CO, September 1993.

201.     Identification of the Potential Source Locations for Elements Observed in Particles Collected at Ny Ålesund, C.-L. Li, P.K. Hopke, W. Maenhaut, and J. Pacyna, presented at the International Symposium on the Ecological Effects of Arctic Airborne Contaminants, Reykjavik, Iceland, October 1993.

202.     Particle Size and Charge Neutralization of Thoron Progeny, Y.S. Cheng, C.C. Yu, and P.K. Hopke, presented to the 1993 Annual Meeting of the American Association for Aerosol Research, Oak Brook, IL, October 1993.

203.     Characterization of and Improvements to the Dryden Surface Sampler, O.O. Olawoyin, and P.K. Hopke, presented to the 1993 Annual Meeting of the American Association for Aerosol Research, Oak Brook, IL, October 1993.

204.     Experimental Study of Ion-Induced Nucleation Using a Thermal Diffusion Cloud Chamber, F. He and P. Hopke, presented to the 1993 Annual Meeting of the American Association for Aerosol Research, Oak Brook, IL, October 1993.

205.     A Study of the Sources if Air Pollutants Observed at Tjörn, Sweden, A.X. Fan, P.K. Hopke, J.M. Pacyna, and M. Öblad, presented to the 1993 Annual Meeting of the American Association for Aerosol Research, Oak Brook, IL, October 1993.

206.     Exploring Methods to Quantify the Shape of Individual Airborne Particles, Y. Xie, P.K. Hopke, G.S. Casuccio, and B. Henderson, presented to the 1993 Annual Meeting of the American Association for Aerosol Research, Oak Brook, IL, October 1993.

207.     Identification of the Potential Source Locations for Elements Observed in Particles Collected at Ny Ålesund, C-L Li, P.H. Hopke, W. Maenhaut, and J. Pacyna, presented to the 1993 Annual Meeting of the American Association for Aerosol Research, Oak Brook, IL, October 1993.

208.     Tracing the Origins of Trace Elements Found in Precipitation and Particles Collected at Dorset, Ontario, N. Gao and P.K. Hopke, presented to the 1993 Annual Meeting of the American Association for Aerosol Research, Oak Brook, IL, October 1993.

209.     Measurement of Hygroscopicity of Consumer Product Aerosols S. K. Dua, P.K. Hopke, and W. Li, presented to the 1993 Annual Meeting of the American Association for Aerosol Research, Oak Brook, IL, October 1993.

210.     Study of Air Pollution Source/Receptor Relationships using a Combination of Kohonen's Neural Network and Prim's Minimal Spanning Tree, N. Gao, P.K. Hopke, and D. Wienke, presented to the 1993 Annual Meeting of the American Association for Aerosol Research, Oak Brook, IL, October 1993.

211.     Determination of Room Model Parameters of the Behavior of Radon Progeny In Indoor Air Based on Experimental Data, B. Jensen, and P.K. Hopke, presented to the 1993 Annual Meeting of the American Association for Aerosol Research, Oak Brook, IL, October 1993.

212.     Advances in Receptor-Oriented Methodologies: A Hybrid Model for Long-Range Transport of Aerosol, M.-D. Cheng, P.K. Hopke, L.A. Barrie, and S. Landsberger, presented at the 1993 International Conference on Aerosol Science and Technology, Taichung, Taiwan, ROC, October 28-30, 1993.

213.     A Study on the Sources of Air Pollutants Observed at Tjorn (Sweden), A. Fan, P. K. Hopke, T. M. Raunemaa presented at the 1994 European Aerosol Conference, Blois, France May 30-June 2, 1994.

214.     Ion-Induced Nucleation of Indoor VOCs by Radon Decay, P. K. Hopke and F. He presented at the 1994 European Aerosol Conference, Blois, France May 30-June 2, 1994.

215.     The Use of Bootstrapping to Estimate Conditional Probability Fields for Source Locations of Airborne Pollutants, P. K. Hopke and Chong-Le Li, presented at the International Chemometrics Research Meeting, Veldhoven, The Netherlands July 3-7, 1994.

216.     Rapid Classification of Airborne Particle Images by an Adaptive Resonance Theory Based Artificial Neural Network (ART-2a), D. Wienke., Y. Xie, P. K. Hopke, presented at the International Chemometrics Research Meeting, Veldhoven, The Netherlands July 3-7, 1994.

217.     Spatial Distribution of Particle Sources Based on Elemental Compositions Measured at Multiple Sampling Sites, N. Gao, X. Liu, P. K. Hopke, D. Cohen, G. Bailey, P. Crisp, presented at the 208th American Chemical Society National Meeting, Washington, D.C. August 21-25, 1994.

218.     Hygroscopic Growth of Consumer Spray Products, S. K. Dua, P. K. Hopke and T. Raunemaa, presented at the Fourth International Aerosol Conference, Los Angeles, CA August 29-September 2, 1994.

219.     A System for Sizing, Aerodynamically, Aerosol Particles in the 0.5 nm Range, O. O. Olawoyin, T. M. Raunemaa and P. K. Hopke, presented at the Fourth International Aerosol Conference, Los Angeles, CA August 29-September 2, 1994.

220.     Dynamic Model for the Size Distribution of Airborne Radon Progeny in a Shower Stall, V. K. Datye, B. Jensen and P. K. Hopke, presented at the Fourth International Aerosol Conference, Los Angeles, CA August 29-September 2, 1994.

221.     Modeling the Behavior of Air Cleaners on Radon Progeny in COntrolled Indoor Air, Based on Experimental Data, B. Jensen, P. K. Hopke, R. Sextro, M. Xu and M. Nematollahi, presented at the Fourth International Aerosol Conference, Los Angeles, CA August 29-September 2, 1994.

222.     In-Home and Laboratory Experiments for Short Term Dose from Radon and Radon Progeny in Showering, P. K. Hopke and T. M. Raunemaa, presented at the Fourth International Aerosol Conference, Los Angeles, CA August 29-September 2, 1994.

223.     Evaluation of Spatial Patterns of Ambient Elemental Concentrations of Atmospheric Aerosols by Factor Analysis Methods, X. Liu, N. Gao, P. K. Hopke, D. Cohen. G. Bailey and P. Crisp, presented at the Fourth International Aerosol Conference, Los Angeles, CA August 29-September 2, 1994.

224.     Airborne Particles Classification with a Combination of Chemical Composition and Shape Index Utilizing an Adaptive Resonance Theory (ART) based Artificial Neural Network, Y. Xie, P. K. Hopke and D. Wienke, presented at the Fourth International Aerosol Conference, Los Angeles, CA August 29-September 2, 1994.

225.     Study of Ion-Induced Binary Nucleation of H2O-H2SO4 with Radiolysis Formation of H2SO4 in Thermal Diffusion Cloud Chamber (TDCC), F. He and P. K. Hopke, presented at the Fourth International Aerosol Conference, Los Angeles, CA August 29-September 2, 1994.

226.     Evaluation of An Electrostatic Air Cleaner For Particle and Radon-Decay Product Removal from Indoor Air, P. K. Hopke and B. Jensen, presented at the International Workshop, Indoor Air - An Integrated Approach, Gold Coast, Queensland, Australia November 27-December 1, 1994.

227.     Assessment of Exposure to Radon and It's Decay Products From Showering in Radon-Laden Water, P. K. Hopke, T. M. Raunemaa, V. Datye, K. Kuuspalo and B. Jensen, presented at the International Workshop, Indoor Air - An Integrated Approach, Gold Coast, Queensland, Australia November 27-December 1, 1994.

228.     Effects of Volatile Organic Compound (VOC) and Water Vapor on the ²¹⁸Po⁺ Cluster Aerodynamic Size Distribution, O. O. Olawoyin, P. K. Hopke, presented at the NRE-VI Symposium, Montreal, June 5-9, 1995.

229.     Hygroscopicity of Indoor Aerosols and Their Influence on the Deposition of Inhaled Radon Decay Products, S. K. Dua, P. K. Hopke, presented at the NRE-VI Symposium, Montreal, June 5-9, 1995.

230.     Exposure Assessment for Showering with ²²²Radon Bearing Water Based on a Dynamic Model for the Airborne Activity Size Distribution, V. K. Datye, P. K. Hopke, T. Raunemaa, K. Kuuspalo, & B. Jensen, presented at the NRE-VI Symposium, Montreal, June 5-9, 1995.

231.     A System Used for Size Determination of Radioactive Aerosol Particles, L. Fei and P. K. Hopke, presented at the NRE-VI Symposium, Montreal, June 5-9, 1995.

232.     Estimate of Radon Progeny Exposure and Dose in Dry Mines Using Diesel Equipment, P. K. Hopke, K. Kuuspalo and T. Raunemaa, presented at NRE-VI Symposium, Montreal, June 5-9, 1995.

233.     The Ratio of Aerosol Optical Absorption Coefficients to Sulphur Concentrations as an Indicator of Smoke from Forest Fires when Sampling in Polar Regions, A.V. Polissar, P.K. Hopke, W.C. Malm, and J.F. Sisler, presented at European Aerosol Conference, Helsinki, Finland, September 18-22, 1995.

234.     Bromine, Sulfur and Manganese Source Contribution Characteristics in Eastern Baltic Sea and Atlantic Ocean Aerosol as Determined by PSCF Calculations, T. Raunemaa, P.K. Hopke, and A. Fan, presented at European Aerosol Conference 1995, Helsinki, Finland, September 18-22, 1995.

235.     A Novel Method to Study Radon and Radon Progeny Emanation from Water, T. Raunemaa, P.K. Hopke, and K. Kuuspalo, presented at European Aerosol Conference 1995, Helsinki, Finland, September 18-22, 1995.

236.     Spatial and Seasonal Variations of Atmospheric Aerosol Concentration in Alaska, A.V. Polissar, P.K. Hopke, W.C. Malm, and J.F. Sisler, presented at European Aerosol Conference 1995, Helsinki, Finland, September 18-22, 1995.

237.     The Ratio of Aerosol Optical Absorption Coefficients to Sulphur Concentrations as an Indicator of Smoke from Forest Fires when Sampling in Polar Regions, A.V. Polissar, P.K. Hopke, W.C. Malm, and J.F. Sisler, presented at American Association for Aerosol Research Annual Meeting, Pittsburgh, PA, October 9-13, 1995.

238.     A Study of the Importance of the Construction and Use of Deconvolution Algorithms in Determining Activity Weighted Size Spectra, B. Fitzgerald and P.K. Hopke, presented at American Association for Aerosol Research Annual Meeting, Pittsburgh, PA, October 9-13, 1995.

239.     Experimental Study of the Submicron Particles Deposition Velocity in a Test Chamber, B. Mesbah, B. Fitzgerald, Y. Nomura, and P.K. Hopke, presented at American Association for Aerosol Research Annual Meeting, Pittsburgh, PA, October 9-13,1995

240.     The Introduction and Application of a New Receptor Model: Three-Way Positive Matrix Factorization (PMF3), H. Jia, P.K. Hopke, P. Paatero, J.M. Ondov, and F. Divita, presented at American Association for Aerosol Research Annual Meeting,, Pittsburgh, PA, October 9-13, 1995.

241.     Measurements of Effects of O₂ on the Properties of ²¹⁸Po⁺, L. Olawoyin and P.K. Hopke, presented at American Association for Aerosol Research Annual Meeting, Pittsburgh, PA, October 9-13, 1995.

242.     The Formation of ²¹⁸Po Clusters in Various Atmospheres Containing Volatile Organic Compounds, B. Mesbah, P.K. Hopke, B. Fitzgerald, and O.O. Olawoyin, presented at 70th Colloid and Surface Science Symposium, Clarkson University, Potsdam, NY, June 17, 1996.

243.     The Use of Positive Matrix Factorization to Quantitatively Apportion Sources of Airborne Particles, P.K. Hopke, presented at Chemometrics in Analytical Chemistry Conference, Tarragona, Spain, June 26, 1996.

244.     Further Study on the Classification of Single Particles Based on Automated Electron Microscopic Data, P.K. Hopke, presented at Chemometrics in Analytical Chemistry Conference, Tarragona, Spain, June 25, 1996.

245.     Ion-Induced Nucleation of Volatile Organic Compounds, P.K. Hopke and F. He, presented at the 14 International Conference on Nucleation and Atmospheric Aerosols, Helsinki, Finland, August 26-28, 1996.

246.     Neural Networks Used for the Classification of Single Particles Based on Computer-Controlled Scanning Electron Microscopy (CCSEM) Data, X.-H. Song and P.K. Hopke, presented to 15th Annual Meeting of the American Association for Aerosol Research, Orlando, FL, October 14-18, 1996.

247.     Elemental Composition and Sources of Atmospheric Aerosol in Alaska, A.V. Polissar, P.K. Hopke, P. Paatero, W.C. Malm, and J.F. Sisler, presented to 15th Annual Meeting of the American Association for Aerosol Research, Orlando, FL, October 14-18, 1996.

248.     Three-Way Factor Analysis: Examination and Comparison of Alternative Computational Methods, P.K. Hopke, P. Paatero, H. Jia, R.T. Ross, and R.A. Harshman, Conference on Three-Way Methods in Chemistry and Psychology, Lake Chelan, Washington, May 4-9, 1997.

249.     Identification of Source Nature and Seasonal Variations of Arctic Aerosol by Positive Matrix Factorization, Y.-L. Xie, P.K. Hopke, and P. Paatero, Conference on Three-Way Methods in Chemistry and Psychology, Lake Chelan, Washington, May 4-9, 1997.

250.     The Application of Positive Matrix Factorization to Identification Sources of Atmospheric Aerosol over Alaska, P.K. Hopke, A.V. Polissar, P. Paatero, W. C. Malm and J. F. Sisler, Conference on Three-Way Methods in Chemistry and Psychology, Lake Chelan, Washington, May 4-9, 1997.

251.     Identification of Source Nature and Seasonal Variations of Arctic Aerosol by Positive Matrix Factorization, Y.-L. Xie, P.K. Hopke, P. Paatero, L.A. Barrie and S.-M. Li, IGAC-SPARC-GAW Conference on Global Measurement Systems for Atmospheric Composition, Toronto, Ontario, Canada, May 20-22, 1997.

252.     Seasonal and Long-Term Variability in Concentrations of Gases and Particles at Barrow, Alaska, A.V. Polissar, P.K. Hopke, P. Paatero, Y.J. Kaufman, D.K. Hall, B.A. Bodhaine, E.G. Dutton IGAC-SPARC-GAW Conference on Global Measurement Systems for Atmospheric Composition, Toronto, Ontario, Canada, May 20-22, 1997.

253.     Regression on Parameters From 3-Way Decomposition, P. Geladi, Y-L Xie, A.V. Polissar and P. Hopke, Presented to 5th Scandinavian Sympostun on Chemometrics, Lahti, Finland, August 17-21, 1997.

254.     Nonlinearities and Prediction Bias in Multivariate Regression for Environmental Data, P. Geladi, L. Hadjiidki and P.K. Hopke, Presented to the Conferentia Chemometrica, Budapest, Hungary, August 21-23, 1997.

255.     Multivariate Regression for Environmental Data: Nonlinearities and Prediction Bias, P. Geladi, L. Hadjiiski and P.K. Hopke, Presented to Conferentia Chemometrica, Budapest, Hungary, August 21-23, 1997.

256.     Receptor Modeling for PM_2.5 and PM₁₀, P.K. Hopke, Presented to AWMA-AGU Conference on Visual Air Quality: Aerosols and Global Radiation Balance, Bartlett, NH, September 9-12, 1997.

257.     Seasonal and Long-Term Variability of Atmospheric Aerosol Sources in the Western Arctic, A.V. Polissar, P.K. Hopke, and Y.-L. Xie, Presented to AWMA-AGU Conference on Visual Air Quality: Aerosols and Global Radiation Balance, Bartlett, NH, September 9-12, 1997.

258.     Modeling and Prediction of Ambient Ozone Concentrations Based on Neural Network Approach, L. Hadjiiski and P.K. Hopke, Presented to AWMA-AGU Conference on Visual Quality Aerosols & Global Radiation Balance, Bartlett, NH, September 9-12, 1997.

259.     Narrow Tubing Approximation for the Heat and Mass Transfer in Flow Diffusion Chamber, M.P. Anisimov and P.K. Hopke, Denver, CO, October 13-17, 1997.

260.     Natural, Seasonal Variation and Preferred Pathways of Possible Sources of Arctic Aerosol, Y.-L. Xie and P.K. Hopke, presented to 16th Annual Meeting of the American Association for Aerosol Research, Denver, CO, October 13-17, 1997.

261.     Emission Sources from the Ambient Data of Volatile Organic Compounds by Neural Networks, X.-H. Song and P.K. Hopke, presented to 16th Annual Meeting of the American Association for Aerosol Research, Denver, CO, October 13-17, 1997.

262.     Local Modeling of Atmospheric Aerosols Based on Trajectory Statistics, L. Hadjiiski and P.K. Hopke, presented to 16th Annual Meeting of the American Association for Aerosol Research, Denver, CO, October 13-17, 1997.

263.     Long-Term Trends and Seasonal Variations of Artic Haze at Barrow, Alaska, A.V. Polissar and P.K. Hopke, presented to 16th Annual Meeting of the American Association for Aerosol Research, Denver, CO, October 13-17, 1997.

264.     A Prospective Assessment of the ²¹⁰Po Surface Collection Method for Estimating ²²²Rn Exposure, P.K. Hopke and B. Fitzgerald, Presented to the 7th Tohwa University International Symposium, Fukuoka, Japan, October 23-25, 1997.

265.     Nonlinearities and Prediction Bias in Multivariate Regression for Environmental Data, P. Geladi, L. Hadjiiski and P.K. Hopke, Presented to Chemometrics: Analytical Science of the Future, Nijmegen, Netherlands, November 7, 1997.

266.     Design of Large Scale Models Based on Multiple Neural Network Approach, L. Hadjiiski and P.K. Hopke, Presented to Artificial Neural Networks in Engineering, Rolla, MO, November 8-12, 1997.

267.     Semiempirical Rules of the Ion Induced Vapor Nucleation, M. P. Anisimov and P.K. Hopke, Presented to AICHE Annual Meeting, Los Angeles, CA, November 16-20, 1997.

268.     Classification of Soils Using their Phospholipid Fatty Acid Content, P.K. Hopke, K. Scow, M.A. Bruns, and D.A. Bossio, presented to Second International Chemometrics Research Meeting, Veldhoven, The Netherlands, May 24-28, 1998.

269.     Multiway Analysis of Airborne Particle Composition Data, P.K. Hopke, Y.L. Xie and P. Paatero, presented to Second International Chemometrics Research Meeting, Veldhoven, The Netherlands, May 24-28, 1998.

270.     Receptor Modeling Assessment of PTEAM Data, E. Yakovleva, P.K. Hopke, and L. Wallace, presented to 17th Annual Meeting of the American Association for Aerosol Research, Cincinnati, OH, June 22-26, 1998.

271.     The Application of the Multilinear Receptor Modeling to Identification of Sources of Atmospheric Aerosol over Alaska, presented to 17th Annual Meeting of the American Association for Aerosol Research, Cincinnati, OH, June 22-26, 1998.

272.     Surface Topology of Ion-Induced Nucleation Rates of Single Systems, M.P. Anisimov, P.K. Hopke, D.H. Rasmussen, S.D. Shandakov, and V.A. Pinaev, presented to 17th Annual Meeting of the American Association for Aerosol Research, Cincinnati, OH, June 22-26, 1998.

273.     Surface Topology of Ion-Induced Nucleation Rates of Binary Systems, M.P. Anisimov, P.K. Hopke, D.H. Rasmussen, S.D. Shandakov, and V.A. Pinaev, presented to 17th Annual Meeting of the American Association for Aerosol Research, Cincinnati, OH, June 22-26, 1998.

274.     Source Apportionment of Soil Samples by the Combination of Two Neural Networks Based on Computer-Controlled Scanning Electron Microscopy, X.-H. Song, P.K. Hopke, L.L. Ashbaugh, G.S. Casuccio, and S. Schlaegle, presented to 17th Annual Meeting of the American Association for Aerosol Research, Cincinnati, OH, June 22-26, 1998.

275.     Multiway Analysis of Airborne Particle Composition Data, P.K. Hopke, Y. Xie, P. Paatero, L.A. Barrie, and S.-M. Li, presented to the International Aerosol Conference, Edinburgh, Scotland, September 14-18, 1998.

276.     Semiempirical Ion-induced Vapor Nucleation Rates, M.P. Anisimov, P.K. Hopke, J. Terry, D.H. Rasmussen, S.D. Shandakov, and V.A. Pinaev, presented to the International Aerosol Conference, Edinburgh, Scotland, September 14-18, 1998.

277.     Three-Way Methods Applied to Multivariate Image Data, P.K. Hopke, Y.-L. Xie, P. Paatero, J.-H. Wang, T. Hancewicz, presented to the Federation of Analytical Chemistry and Spectroscopy Societies (FACSS) Conference, Austin, TX, October 11-15, 1998.

278.     Some Aspect of Quality Assurance and Quality Control in Neutron Activation Analysis of Airborne Particles, S. Landsberger and P.K. Hopke, presented to American Nuclear Society 1998 Winter Meeting, Washington, DC, November 15-19, 1998.

279.     An Evaluation of Atmospheric Sources of Trace Elements in Canadian Rural Sites, S. Landsberger, S. Biegalski, and P.K. Hopke, presented to the International Conference on Nuclear Analytical methods in the Life Sciences, Beijing, China October 26-30, 1998.

280.     Multiple Imputation for Multivariate Time Series of the Chemical Concentrations of Air Pollution in the Arctic, P.K. Hopke, C. Liu, and D.B. Rubin, presented to the Third Colloquium on PM and Health, Durham, NC, June 6-8, 1999.

281.     Experimental Check of Kelvin Equations by Studying Nucleation Kinetics in Supersaturated Vapors, V. Zdimal and P. K. Hopke, presented to NERM’99, Potsdam, June, 1999.

282.     Measurements and Comparisons of DBP Vapor Generated in the Turbulenet Mixing CNC with Several Conditions, D.-W. Lee, P. K. Hopke, H.-C. Wang and R. Maliev, presented to NERM’99, Potsdam, June, 1999.

283.     A Transition From Heterogeneous to Homogeneous Nucleation in The Turbulent Mixing CNC, R. Mavliev, H.-C. Wang, P.K. Hopke, and Doh-Won Lee, presented to NERM’99, Potsdam, June, 1999.

284.     Bimodal Aerosol Size Distribution Resulting from Two Nucleation Rate Surfaces, L. Anisimova, P.K. Hopke, J. Terry, S. D. Shandakov, and I.I. Shvets, presented to NERM’99, Potsdam, June, 1999.

285.     N-Pentanol - Helium Homogeneous Nucleation Rates at Atmospheric Pressure, M.P. Anisimov, S.D. Shandakov, I.I. Shvets, V.A.Pinaev, and P.K. Hopke, presented to NERM’99, Potsdam, June, 1999.

286.     Multiple Imputation for Multivariate Time Series of the Chemical Concentrations of Air Pollution in the Arctic, P.K. Hopke, C. Liu, and D.B. Rubin, presented to the Sixth Scandinavian Chemometrics Conference, Porsgrunn, Norway, August 16-19, 1999.

287.     Analysis of Multivariate Microscopic Images Using Positive Matrix Factorization, P.K. Hopke, Ji-Hong Wang, P. Paatero, T.M. Hancewicz, presented to the Sixth Scandinavian Chemometrics Conference, Porsgrunn, Norway, August 16-19, 1999.

288.     Resolution of Multicomponent Peaks by OPA, PMF and ALS, A. Garrido Frenich, D.L. Massart, Ji-Hong Wang and P.K. Hopke, presented to the Sixth Scandinavian Chemometrics Conference, Porsgrunn, Norway, August 16-19, 1999.

289.     A Transition From Heterogeneous to Homogeneous Nucleation in The Turbulent Mixing CNC, R. Mavliev, H.-C. Wang, P.K. Hopke, and Doh-Won Lee, presented to the European Aerosol Conference, Prague, September 1999.

290.     Multiple Site Receptor Modeling with a Minimal Spanning Tree Combined with a Kohonon Neural Network, P. K. Hopke, presented to Pattern Recognition, Chemometrics, and Imaging for Environmental Monitoring, Boston, MA, September 20-22, 1999.

291.     Multiway Analysis of Airborne Particle Composition Data, P. K. Hopke, Y. Xie, and P. Paatero, presented to Pattern Recognition, Chemometrics, and Imaging for Environmental Monitoring, Boston, MA, September 20-22, 1999.

292.     Source Areas for Atmospheric Aerosol Measured at Barrow, Alaska, A. Polissar, P.K. Hopke, Y.J. Kaufman, D.K. Hall, J.M. Harris, Presented to the 18^th Annual Meeting of the American Association for Aerosol Science, Tacoma, WA, October 11-15, 1999.

293.     A Transition From Heterogeneous to Homogeneous Nucleation in the Turbulent Mixing CNC, R. Mavliev, H.-C. Wang, P.K. Hopke, Doh-Won Lee, Presented to the 18^th Annual Meeting of the American Association for Aerosol Science, Tacoma, WA, October 11-15, 1999.

294.     Multiple Imputation for Multivariate Time Series of the Chemical Concentrations of Air Pollution in the Arctic, P.K. Hopke, C. Liu, D.B. Rubin, Presented to the 18^th Annual Meeting of the American Association for Aerosol Science, Tacoma, WA, October 11-15, 1999.

295.     The Application of Positive Matrix Factorization to Particulate Mass Apportionment, P. K. Hopke, X.-H. Song, Z. Ramadan, and P. Paatero, presented to PM2000, Charleston, SC, January 25-28, 2000.

296.     Dynamic State Phase Diagrams for Nucleated Systems, M.P. Anisimov, S.D. Shandakov, V.A. Pinaev, I.I.Shvets, and P.K. Hopke, presented to the 15^th International Conference on Nucleation and Atmospheric Aerosols, Rolla, MO, August 6-11, 2000.

297.     Use of a Turbulent Mixing CNC to Study the Influence of Composition and Vapor Properties on Heterogeneous Nucleation, P.K. Hopke, D.W.Lee, Rashid Mavliev, and Hwa-Chi Wang, presented to the 15^th International Conference on Nucleation and Atmospheric Aerosols, Rolla, MO, August 6-11, 2000.

298.     Improvement of the Homogeneous Nucleation Rate Measurements in a Static Diffusion Chamber with Use of a CCD Camera, V. Zdímal, J. Smolík, P.K. Hopke, and J. Matas, presented to the 15^th International Conference on Nucleation and Atmospheric Aerosols, Rolla, MO, August 6-11, 2000.

299.     Multiple Imputation for Multivariate Time Series of the Chemical Concentrations of Air Pollution in the Arctic. P.K. Hopke, C. Liu, and D. Rubin, presented to the 2000 Joint Statistical Meeting, Indianapolis, IN, August 14-18, 2000.

300.     Comparison of the Analyses of a Synthetic Data Set by Positive Matrix Factorization and UNMIX, X.H. Song, Z. Ramadan, P.K. Hopke, and R. Henry, presented to the Air & Waste Management Association/EPA meeting on Measurement of Toxic Air Pollutants, Research Triangle Park, NC, September 2000.

301.     Multilinear Receptor Analysis Utilizing Wind Direction and Wind Speed as Independent Variables, P. Paatero and P.K. Hopke, presented to the Air & Waste Management Association/EPA meeting on Measurement of Toxic Air Pollutants, Research Triangle Park, NC, September 18-20, 2000.

302.     The Potential Influence of Data Artifacts on Receptor Model Results, R. Poirot, and P.K. Hopke, presented to the Air & Waste Management Association/EPA meeting on Measurement of Toxic Air Pollutants, Research Triangle Park, NC, September 18-20, 2000.

303.     Comparison of Source Apportionment of Phoenix Fine Particle Mass by PMF and UNMIX, P.K. Hopke, Z. Ramadan, X.-H. Song, and R. Henry, presented to the Air & Waste Management Association/EPA meeting on Measurement of Toxic Air Pollutants, Research Triangle Park, NC, September 18-20, 2000.

304.     Dynamics of Grown Particle Size Distribution During the Transition from Heterogeneous to Homogeneous Nucleation in the Turbulent Mixing CNC, R. Mavliev, H.-C. Wang, P.K. Hopke and Doh-Won Lee, presented to the Air & Waste Management Association/EPA meeting on Measurement of Toxic Air Pollutants, Research Triangle Park, NC, September 18-20, 2000.

305.     Sources of Fine Particle Concentration and Composition in Northern Vermont, R. Poirot, P. Wishinski, A.V. Polissar, P.K. Hopke, presented to the Air & Waste Management Association/EPA meeting on Measurement of Toxic Air Pollutants, Research Triangle Park, NC, September 18-20, 2000.

306.     P.K.Control of Rotations in Positive Matrix Factorization, P.K. Hopke, X.H. Song, Z. Ramadan, and Penti Paatero, presented at the 4th International Conference on Environmetrics and Chemometrics. Las Vegas, NV, September 18-20, 2000.

307.     The Analysis of Aerosol Mass Spectrometry Data, P.K. Hopke, X.H. Song, and Z. Ramadan, presented at the 4th International Conference on Environmetrics and Chemometrics. Las Vegas, NV, September 18-20, 2000.

308.     Utilizing Wind Direction and Wind Speed as Independent Variables in Multilinear Receptor Modeling Studies, P. Paatero and P.K. Hopke, presented at the 4th International Conference on Environmetrics and Chemometrics. Las Vegas, NV, September 18-20, 2000.

309      Variable Selection in Classification of Environmental Soil Samples for PLS and Neural Networks Models, Z. Ramadan, X-H. Song, Philip K. Hopke, M. Johnson and K. Scow, presented to Chemometrics in Analytical Chemistry, Antwerp, Belgium, October 16-20, 2000.

310.     Source Apportionment of Gasoline and Diesel by Multivariate Calibration Based on Single Particle Mass Spectra Data, X-H. Song and P.K. Hopke, D.T. Suess, D.P. Fergenson, and K.A. Prather, presented to Chemometrics in Analytical Chemistry, Antwerp, Belgium, October 16-20, 2000.

311.     Equation-Oriented System (EOS): An Efficient Approach to Solve Polynomial Equations, J-H. Wang and P.K. Hopke, presented to Chemometrics in Analytical Chemistry, Antwerp, Belgium, October 16-20, 2000.

312.     Application of Receptor Modeling to Evaluate the Impacts of New York State Power Plants on Air Quality, W. Liu, P K. Hopke, T.M. Holsen, Y. Han, and M. Milligan, presented at The American Association for Aerosol Research Annual Conference, St. Louis, MO, November 5-10, 2000.

313.     Atmospheric Aerosol in Vermont: Elemental Composition and Sources, A. Polissar, P.K. Hopke, and R. Poirot, presented at The American Association for Aerosol Research Annual Conference. St. Louis, MO, November 5-10, 2000.

314.     Identification of Sources of Atmospheric Aerosol Measured in Washington D.C. by Positive Matrix Factorization, X.-H. Song and P.K. Hopke, presented at The American Association for Aerosol Research Annual Conference. St. Louis, MO, November 5-10, 2000.

315.     Identification of Sources of Phoenix Aerosol by Positive Matrix Factorization, Z. Ramadan, X.-H. Song, and P.K. Hopke, presented at The American Association for Aerosol Research Annual Conference. St. Louis, MO, November 5-10, 2000.

316.     Dynamics of Grown Particle Size Distribution During the Transition from Heterogeneous to Homogeneous Nucleation in the Turbulent Mixing CNC, R. Mavliev, H.-C. Wang, P.K. Hopke, D.-W. Lee, presented at The American Association for Aerosol Research Annual Conference. St. Louis, MO, November 5-10, 2000.

317.     Comparative Analysis of the Critical Embryo Surface for Multiatomic Alcohols: I. One Molecule Limit, M.P. Anisimov, I.N. Shaimordanov, S.D. Shandakov, P.K. Hopke, presented at The American Association for Aerosol Research Annual Conference. St. Louis, MO, November 5-10, 2000.

318.     A Receptor/Multilinear Engine for Spatial Pattern Analysis of the Mohave Coal-Fired Power Plant Emissions, W. Chueinta and P.K. Hopke, presented at The American Association for Aerosol Research Annual Conference. St. Louis, MO, November 5-10, 2000.

319.     Stepping Back in Time: Neutron Activation Analysis of Finnish Filters Collected between 1964 and 1978,P.K. Hopke, S. Landsberger, Y. Visanen, J. Paatero, T. Yli-Tuomi, presented to the 221^st National Meeting of the American Chemical Society, San Diego, CA, April 1-6, 2001.

320.     Locating and Quantifying Atmospheric Sources of PCBs in Chicago, Y.-K. Hsu, P. K. Hopke and T.M. Holsen, presented to 44^th Annual Conference of the International Association for Great Lakes Research, Green Bay, WI, June 10-14, 2001.

321.     A Modified Alternating Least-squares (MALS) Algorithm: Draining the Swamps in Multiway Analysis, J.-H. Wang, P.K. Hopke, and T.M. Hancewicz, presented to the Seventh Scandinavian Chemometrics Conference, Copenhagen, Denmark, August 20-23, 2001.

322.     Application of PLS and Back Propagation Neural Networks for the Determination of Soil Samples Properties, Z. Ramadan, P. K. Hopke, M. Johnson and K. Scow, presented to the Seventh Scandinavian Chemometrics Conference, Copenhagen, Denmark, August 20-23, 2001.

323.     Critical Embryo Sizes at the Conditions of Spinodal Decompositions, M.P. Anisimov, I.N. Shaymordanov, P.K. Hopke, presented to the European Aerosol Conference, Leipzig, Germany, September 3-7, 2001.

324.     Further Investigations of the “Geoaerosol” Phenomenon, R.F. Holub, J. Hovorka, G.M. REIMER, B.D. Honeyman, P.K. Hopke, and P.K. Smrz, presented to the European Aerosol Conference, Leipzig, Germany, September 3-7, 2001.

325.     Testing and Comparing Positive Matrix Factorization (PMF) and Multilinear Engine (ME-2) Programs in Source Apportionment of Particulate Pollutants, Z. Ramadan, B. Eickhout, X-H. Song, M.C. Buydens, Philip K. Hopke, presented to the 2001 meeting of the American Association for Aerosol Research, Portland, OR, October 15-19, 2001.

326.     Bimodal Size Distribution of Vapor Nucleated Aerosol, L. Anisimova, P.K. Hopke, J. Terry, presented to the 2001 meeting of the American Association for Aerosol Research, Portland, OR, October 15-19, 2001.

327.     Carrier Gas Effects on Vapor Nucleation Rates, M.P. Anisimov, P.K. Hopke, I. Shaimordanov, Y. Polygalov, presented to the 2001 meeting of the American Association for Aerosol Research, Portland, OR, October 15-19, 2001.

328.     Estimation of Binary Intermolecular Interaction for Water/Alcohol Systems, M.P. Anisimov, P.K. Hopke, S.D. Shandakov, P. Seraphimov, presented to the 2001 meeting of the American Association for Aerosol Research, Portland, OR, October 15-19, 2001.

329.     Numerical 2-D Solution of the Flow Diffusion Chamber, M.P. Anisimov, P.K. Hopke, S.D. Shandakov, V.A. Pinaev, A.S. Berezina, presented to the 2001 meeting of the American Association for Aerosol Research, Portland, OR, October 15-19, 2001.

330.     Application of PMF and PSCF to Trace the Source of PM2.5 Particles, Hg and PAH in New York State, W. Liu, P.K. Hopke, T.M. Holsen, Y.-J. Han, M. Milligan, presented to the 2001 meeting of the American Association for Aerosol Research, Portland, OR, October 15-19, 2001.

331.     A Semi-Empirical Approach to Explain Heterogeneous Nucleation Between Different Nuclei and Working Fluids, D.-W. Lee, P.K. Hopke, H.-C. Wang, R. Mavliev, presented to the 2001 meeting of the American Association for Aerosol Research, Portland, OR, October 15-19, 2001.

332.     Source Identification of Vapor Phase Mercury in New York State, Y.-J. Han, T.M. Holsen, P.K. Hopke, W. Liu, M. Milligan, presented to the 2001 meeting of the American Association for Aerosol Research, Portland, OR, October 15-19, 2001.

333.     Source Identification by a Multilinear Receptor Model Using Highly Time Resolved Chemical Composition and Wind Data, X.-H. Song, P.K. Hopke, P. Paatero, J.M. Ondov, C.B. Kidwell, presented to the 2001 meeting of the American Association for Aerosol Research, Portland, OR, October 15-19, 2001.

334.     A Comparison of the PM_2.5 Data Measured by Different Continuous Mass Monitors in Multiple Cities in the USA, A. Polissar, P.K. Hopke, W.E. Wilson, presented to the 2001 meeting of the American Association for Aerosol Research, Portland, OR, October 15-19, 2001.

335.     Changes in the Concentration and Composition of Anthropogenic and Biogenic Aerosols in the Finnish Arctic, T.P. Yli-Tuomi, L. Venditte, P.K. Hopke, M.S. Basunia, S. Landsberger, Y. Viisanen, J. Paatero, P. Paatero, presented to the 2001 meeting of the American Association for Aerosol Research, Portland, OR, October 15-19, 2001.

336.     Application of Receptor Modeling to Trace the Sources of PM_2.5 Particles, Hg⁰ and PAHs in New York State, W. Liu, P.K. Hopke, T. M. Holsen,, Y.-J. Han, S.Cybart and M. Milligan, presented to PM_2.5 and Electric Power Generation: Recent Findings and Implications, Pittsburgh, April 9-10, 2002.

337.     Application of Modified Alternating Least-Squares (MALS) Regression to Spectroscopic Image Analysis, T. M. Hancewicz, S.L. Zhang, P.K. Hopke, and J.-H. Wang, presented to the 224th ACS National Meeting, Boston, MA, August 18-22, 2002.

338.     N-Pentanol - Sulfur Hexafluoride Multichannel Nucleation, M. P. Anisimov, L. Timoshina and P.K. Hopke, presented to the 6^th International Aerosol Conference, Taipei, Taiwan, September 8-13, 2002.

339.     Nucleation Rate Surface Topologies over Phase Diagrams with Eutectic and Peritectic Points, M.P. Anisimov P.K. Hopke, and Z.N. Esina, presented to the 6^th International Aerosol Conference, Taipei, Taiwan, September 8-13, 2002.

340.     Application of Receptor Modeling to Trace the Sources of PM_2.5, Hg⁰ and PAHs in New York State Air, W. Liu, P.K. Hopke, T.M. Holsen, Y.-J. Han, S. Cybart, K. Kozlowski and M. Milligan, presented to the 6^th International Aerosol Conference, Taipei, Taiwan, September 8-13, 2002.

341.     Stepping Back in Time: Analysis of Arctic Aerosols Collected from Northern Finland Between 1964 and 1978, T. Yli-Tuomi, L. Venditte, P.K. Hopke, M. S. Basunia, S. Landsberger, Y. Viisanen, J. Paatero, and P. Paatero, presented to the 6^th International Aerosol Conference, Taipei, Taiwan, September 8-13, 2002.

342.     Some Essential Requirements for Nucleation Experiments, M.P. Anisimov and P.K. Hopke, presented to the 6^th International Aerosol Conference, Taipei, Taiwan, September 8-13, 2002.

343.     Measurement of Ultrafine Particle Size Distributions from Stationary Combustion Sources of Natural Gas, Oil and Coal, M.C. Chang, S.M. Yi, P. Hopke, and G. England, presented to the 6^th International Aerosol Conference, Taipei, Taiwan, September 8-13, 2002.

344.     Data Mining of the Relationship between Volatile Organic Components and Transient High Ozone Formation, F. Gan and P.K. Hopke, presented to the Eighth Symposium on Chemometrics in Analytical Chemistry, Seattle, WA, September 22-26, 2002.

345.     Application of Modified Alternating Least-Squares (MALS) Regression to Spectroscopic Image Analysis, T.M. Hancewicz, S.L. Zhang, J-H. Wang, P.K. Hopke, presented to the Eighth Symposium on Chemometrics in Analytical Chemistry, Seattle, WA, September 22-26, 2002.

346.     Discarding or Downweighting High-Noise Variables in Factor Analytic Models, P.K. Hopke and P. Paatero, presented to the Eighth Symposium on Chemometrics in Analytical Chemistry, Seattle, WA, September 22-26, 2002.

347.     Utilizing Hourly Gaseous Measurement as an Independent Variable in Multilinear Receptor Model Studies, P.K. Hopke, E. Kim , P. Paatero, J. Jansen, and E. Edgerton, presented to the Eighth Symposium on Chemometrics in Analytical Chemistry, Seattle, WA, September 22-26, 2002.

348.     Variations of Ultrafine Particles and Gaseous Pollutants in Rochester, NY., C.-H. Jeong, P.K Hopke, M. Utell, D. Chalupa, D. Felton, Presented to 21st Annual Conference of the American Association for Aerosol Research, Charlotte, NC, October 7-11, 2002.

349.     Summertime Concentrations and Sources of Particulate Components, Hg° , and Speciated Polycyclic Aromatic Hydrocarbons at Rural Sites in New York State.,W. Liu, P.K. Hopke, T.M. Holsen, Y.-J. Han, S. Cybart, M. Milligan, and K. Kozlowski, Presented to 21st Annual Conference of the American Association for Aerosol Research, Charlotte, NC, October 7-11, 2002.

350.     A Semi-empirical Approach Using Chemical Interactions to Explain Heterogeneous Nucleation of Combustion Carbon Particles with Different Working Fluids., D.-W. Lee, P.K. Hopke, H.-C. Wang, R. Mavliev, Presented to 21st Annual Conference of the American Association for Aerosol Research, Charlotte, NC, October 7-11, 2002.

351.     Discarding or Downweighting High-Noise Variables in Factor Analytic Models., P. K. Hopke, P. Paatero, Presented to 21st Annual Conference of the American Association for Aerosol Research, Charlotte, NC, October 7-11, 2002.

352.     Analysis of Arctic Aerosols Collected from Northern Finland Between 1964 and 1978, T. Yli-Tuomi, L. Venditte, P.K. Hopke, M. S. Basunia, S. Landsberger, Y. Viisanen, J. Paatero, and P. Paatero, Presented to 21st Annual Conference of the American Association for Aerosol Research, Charlotte, NC, October 7-11, 2002.

353.     Computer Modelling of Water Nucleation Rate Surfaces., L. Anisimova, P.K. Hopke, D.H. Rasmussen, and V.M. Pavskiy, Presented to 21st Annual Conference of the American Association for Aerosol Research, Charlotte, NC, October 7-11, 2002.

354.     Intercomparisons of PM_2.5 Continuous Mass Measurement Instruments Based on Field Studies in Several Cities in the United State, D.-W. Lee, P.K Hopke, and A. Polissar, Presented to 21st Annual Conference of the American Association for Aerosol Research, Charlotte, NC, October 7-11, 2002.

355.     Intercomparisons of Measurements of Chemical Species and Mass Between Continuous Methods and Conventional Sampling/Analysis Systems, P.K. Hopke, W. Zhao, J. Ondov, D. Harrison, P. Pancras, and S. Gazula, Presented to 21st Annual Conference of the American Association for Aerosol Research, Charlotte, NC, October 7-11, 2002.

356.     Intercomparison of Continuous Mass Monitors at the Supersite in Rubidoux, California, P.K. Hopke, D.-W. Lee, P. Jacques, J. Ambs, C. Sioutas, and S. Hering, Presented to 21st Annual Conference of the American Association for Aerosol Research, Charlotte, NC, October 7-11, 2002.

357.     Pressure Effect for the Octanol-Helium Nucleation Rate, M.P. Anisimov, P.K. Hopke, I.N. Shaimordanov, Y.N. Zacharov, and A.S. Vasilyev, Presented to 21st Annual Conference of the American Association for Aerosol Research, Charlotte, NC, October 7-11, 2002.

358.     Measurement of Ultrafine Particle Size Distributions from Stationary Combustion Sources of Natural Gas, Oil and Coal, M. Chang, S.-M. Yi, P.K. Hopke, and G.C. England, Presented to 21st Annual Conference of the American Association for Aerosol Research, Charlotte, NC, October 7-11, 2002.

359.     Analysis of the Particle Size Distribution Data Collected During Pittsburgh Air Quality Study, L. Zhou, E. Kim, and P.K. Hopke, Presented to 21st Annual Conference of the American Association for Aerosol Research, Charlotte, NC, October 7-11, 2002.

360.     Distribution of Source Contributions Across an Urban Area, P.K. Hopke, P. Tiitta, J. Pinto, and W.E. Wilson, Presented to 21st Annual Conference of the American Association for Aerosol Research, Charlotte, NC, October 7-11, 2002.

361.     Utilizing Hourly Gaseous Measurement as an Independent Variable in Multilinear Model Studies, P.K. Hopke, E. Kim, P. Paatero, J.J. Jansen, Presented to 21st Annual Conference of the American Association for Aerosol Research, Charlotte, NC, October 7-11, 2002.

362.     PM_2.5 Measurements by Different Continuous Instruments in Atlanta, D.-W. Lee, and P.K. Hopke, Presented to 21st Annual Conference of the American Association for Aerosol Research, Charlotte, NC, October 7-11, 2002.

363.     Source Identification of Vapor Phase Mercury in New York State, Y.-H. Han, T.M Holsen, S.-M. Yi, P.K. Hopke, W. Liu, M. Milligan, and S. Cybert, Presented to 21st Annual Conference of the American Association for Aerosol Research, Charlotte, NC, October 7-11, 2002.

364.     Deposition and Ambient Concentrations of PBTs (Hg, PCBs,DDE, Mirex, HCB and Dioxin/Furans) in the Lake Ontario Region, S.M. Yi, Y.-J. Han, T.M. Holsen, P.K. Hopke, J.J. Pagano, L Falanga, and M.S. Milligan, Presented to 21st Annual Conference of the American Association for Aerosol Research, Charlotte, NC, October 7-11, 2002.

365.     Advanced Factor Analysis of Spatial Distributions of PM_2.5 in the Eastern United States, P.K. Hopke, P. Paatero, S. Eberly, and W. Cox, presented to 2003 AAAR PM Meeting on Particulate Matter: Atmospheric Sciences, Exposure and the Fourth Colloquium on PM and Human Health, Pittsburgh, PA, March 30 to April 4, 2003.

366.     Influence of Canadian Forest Fire on Measurements of Carbonaceous Compounds in Fine Particulate Matter During the 2002 Philadelphia Summer Intensive Particulate Matter Program, C.-H. Jeong, D.-W. Lee, E. Kim, and P.K. Hopke, presented to 2003 AAAR PM Meeting on Particulate Matter: Atmospheric Sciences, Exposure and the Fourth Colloquium on PM and Human Health, Pittsburgh, PA, March 30 to April 4, 2003.

367.     The Baltimore Supersite Project: Highly Time and Size Resolved Concentrations of Urban PM_2.5 and its Constituents for Resolution of Sources and Immune Responses, J.M Ondov, T.J. Buckley, P.K. Hopke, M.V. Johnston, M.B. Parlange, W.F. Rogge, K.S. Squibb, A.S. Wexler, presented to 2003 AAAR PM Meeting on Particulate Matter: Atmospheric Sciences, Exposure and the Fourth Colloquium on PM and Human Health, Pittsburgh, PA, March 30 to April 4, 2003.

368.     Frequency Distributions and Spatial Analysis of Fine Particle Measurements in St. Louis During the Regional Air Pollution Study /Regional Air Monitoring System, E. Kim, P.K Hopke, J.P Pinto, and W.E Wilson, P.K.presented to 2003 AAAR PM Meeting on Particulate Matter: Atmospheric Sciences, Exposure and the Fourth Colloquium on PM and Human Health, Pittsburgh, PA, March 30 to April 4, 2003.

369.     Source Identification of Aerosol Measured at Multiple Sites Across St. Louis, P.K. Hopke, E. Kim, P. Tiitta, J.P Pinto, W. E Wilson, presented to 2003 AAAR PM Meeting on Particulate Matter: Atmospheric Sciences, Exposure and the Fourth Colloquium on PM and Human Health, Pittsburgh, PA, March 30 to April 4, 2003.

370.     The Comparison Between Thermal Optical Transmittance Elemental Carbon and Aethalometer Black Carbon Measured at Multiple Monitoring Sites, E. Kim, C.-H. Jeong, D.-W. Lee, and P.K. Hopke, presented to 2003 AAAR PM Meeting on Particulate Matter: Atmospheric Sciences, Exposure and the Fourth Colloquium on PM and Human Health, Pittsburgh, PA, March 30 to April 4, 2003.

371.     Measurement of Real-Time PM_2.5 Mass and Fine Chemical Compositions at Northwest Philadelphia, D.-W. Lee, C.-H. Jeong, E. Kim, and P.K. Hopke, P.K.presented to 2003 AAAR PM Meeting on Particulate Matter: Atmospheric Sciences, Exposure and the Fourth Colloquium on PM and Human Health, Pittsburgh, PA, March 30 to April 4, 2003.

372.     Characterization of Chemical Compositions in Fine Particulate Matter During the Rochester Particulate Matter Study, C.-H. Jeong, D.-W. Lee, E. Kim, P.K.. Hopke, R. Gelein, P.K.presented to 2003 AAAR PM Meeting on Particulate Matter: Atmospheric Sciences, Exposure and the Fourth Colloquium on PM and Human Health, Pittsburgh, PA, March 30 to April 4, 2003.

373.     On-Road Exposure to Highway Aerosols: 1. Particle Chemistry and Rat Exposure System, P.K.. Hopke, C.-H. Jeong, W. Liu, W. Zhao, L. Zhuo, D. Kittleson, W. Watts, R. Gelein, and G. Oberdoerster, presented to 2003 AAAR PM Meeting on Particulate Matter: Atmospheric Sciences, Exposure and the Fourth Colloquium on PM and Human Health, Pittsburgh, PA, March 30 to April 4, 2003.

374.     On-Road Exposure to Highway Aerosols: 2. On-road Aerosol and Gas Mesurements, D.B Kittelson, W.F Watts, J.P Johnson, G. Oberdorster, R. Gelein, and P.K Hopke, presented to 2003 AAAR PM Meeting on Particulate Matter: Atmospheric Sciences, Exposure and the Fourth Colloquium on PM and Human Health, Pittsburgh, PA, March 30 to April 4, 2003.

375.     On-Road Exposure to Highway Aerosols. 3. Exposures of Aged and Compromised Rats, A. Elder, R. Gelein, J. Finkelstein, C. Johnston, R. Phipps, M. Frampton, M. Utell, D. Kittelson, W. Watts, P. Hopke, and G. Oberdörster, presented to 2003 AAAR PM Meeting on Particulate Matter: Atmospheric Sciences, Exposure and the Fourth Colloquium on PM and Human Health, Pittsburgh, PA, March 30 to April 4, 2003.

376.     Effects of Gaseous Pollutants and Meteorological Parameters On Nucleation and Growth of Ultrafine Particles in Urban Ambient Air, C.-H. Jeong, P.K.. Hopke, D. Chalupa, and H.D. Felton, presented to 2003 AAAR PM Meeting on Particulate Matter: Atmospheric Sciences, Exposure and the Fourth Colloquium on PM and Human Health, Pittsburgh, PA, March 30 to April 4, 2003.

377.     Separating Diesel and Spark-Ignition Vehicle Particles in the San Gorgonio National Monument, W. Zhao and P.K.. Hopke, presented to 2003 AAAR PM Meeting on Particulate Matter: Atmospheric Sciences, Exposure and the Fourth Colloquium on PM and Human Health, Pittsburgh, PA, March 30 to April 4, 2003.

378.     Improving Source Identification of Atlanta Aerosol Using Thermal Optical Carbon Fractions in Positive Matrix Factorization, E. Kim, P.K. Hopke, P. Paatero, J.J Jansen, and E.S Edgerson, presented to 2003 AAAR PM Meeting on Particulate Matter: Atmospheric Sciences, Exposure and the Fourth Colloquium on PM and Human Health, Pittsburgh, PA, March 30 to April 4, 2003.

379.     Source Apportionment Using Particle Size Distribution Data from the Pittsburgh Air Quality Study (PAQS), L. Zhou, E. Kim, P.K. Hopke, C. Stanier, and S. Pandis, presented to 2003 AAAR PM Meeting on Particulate Matter: Atmospheric Sciences, Exposure and the Fourth Colloquium on PM and Human Health, Pittsburgh, PA, March 30 to April 4, 2003.

380.     Long-Term Measurement of Ultrafine Particle Number Concentration in Rochester, NY, C.-H. Jeong, P.K. Hopke, M. Utell, D. Chalupa, and H.D. Felton, presented to 2003 AAAR PM Meeting on Particulate Matter: Atmospheric Sciences, Exposure and the Fourth Colloquium on PM and Human Health, Pittsburgh, PA, March 30 to April 4, 2003.

381.     Spinodal Vapor Supersaturation in the Absolute Zero Temperature Limit, M.P. Anisimov, L. Anisimova, D.H. Rasmussen, and P.K. Hopke, presented to the American Chemical Society 77^th Colloid and Surface Science Symposium, Atlanta, GA, June 15-18, 2003.

382.     Semiempirical Nucleation Rate Surface for Water Vapor Nucleation from Critical to Absolute Zero Temperature Limits, M.P. Anisimov, G. Semin, D.H. Rasmussen, and P.K. Hopke, presented to the American Chemical Society 77^th Colloid and Surface Science Symposium, Atlanta, GA, June 15-18, 2003.

383.     Locus of Nucleation Rates over Spinodal Conditions, M.P. Anisimov, L. Anisimova, G. Semin, D.H. Rasmussen, and P.K. Hopke, presented to the American Chemical Society 77^th Colloid and Surface Science Symposium, Atlanta, GA, June 15-18, 2003.

384.     Advanced Factor Analysis of Spatial Distributions of PM_2.5 in the Eastern United States, P. Paatero, P.K. Hopke, J. Hoppenstock, S.I. Eberly and W.M. Cox, presented to the Trilinear Models in Chemistry and Psychology (TRICAP) 2003, Lexington, KY, June 23-27, 2003.

385.     Transforming 3-way Factor Analytic Models So That the Computational Workload Is Reduced While Noise Level in Computed Factors Is Not Increased, P. Paatero and P.K. Hopke, presented to the Trilinear Models in Chemistry and Psychology (TRICAP) 2003, Lexington, KY, June 23-27, 2003.

386.     Source Identification of Volatile Organic Compounds in Houston, TX, Weixiang Zhao, Philip K. Hopke, and T. Karl, presented to the Trilinear Models in Chemistry and Psychology (TRICAP) 2003, Lexington, KY, June 23-27, 2003.

387.     Estimation of Prefactor for the Water Vapor Nucleation Rate, L. Anisimova, M.P. Anisimov, V. Akimov, and P.K. Hopke, presented to the 2003 European Aerosol Conference, Madrid, Spain, September 1-5, 2003.

388.     Source Identifications and Spatial Distributions of Aerosol Measured at Multiple Sites Across St. Louis, P.K. Hopke, E. Kim, P. Tiitta, J. Pinto, and W.E. Wilson, presented to the 2003 European Aerosol Conference, Madrid, Spain, September 1-5, 2003.

389.     Source Identification of Washington, DC Aerosol Using Temperature Resolved Carbon Fractions in Positive Matrix Factorization, E. Kim and P.K. Hopke, presented to the 2003 European Aerosol Conference, Madrid, Spain, September 1-5, 2003.

390.     Water Vapor Supersaturations at the Spinodal Conditions, L. Anisimova, M.P. Anisimov, V. Akimov, D. Rasmussen, and P.K. Hopke, presented to the 2003 European Aerosol Conference, Madrid, Spain, September 1-5, 2003.

391.     An Improved Measurement Method and New Speciated PM2.5 Emission Factors for Stationary Combustion Sources. G.C. England, M.C. Chang, S. Wien, K. Stirling, B. Liebowitz, J. Watson, J. Chow, B. Zielinska, and P.K. Hopke, presented to NARSTO Workshop on Innovative Methods for Emission Inventories, Austin, TX, October 14-17, 2003.

392.     Sources Identification of Airborne Fine Particles at Multiple Sites using Temperature Resolved Carbon Fractions, E. Kim and P.K. Hopke, presented to 21st Annual Conference of the American Association for Aerosol Research, Anaheim, CA, October 20-24, 2003.

393.     Comparison of Positive Matrix Factorization and Multilinear Engine for the Source Apportionment of PM_2.5 in Seattle, E. Kim, P.K. Hopke, T.V. Larson, J. Lewtas, and N.N. Maykut, presented to 21st Annual Conference of the American Association for Aerosol Research, Anaheim, CA, October 20-24, 2003.

394.     Sources of PM_2.5 in Washington, DC, E. Kim and P.K. Hopke, presented to 21st Annual Conference of the American Association for Aerosol Research, Anaheim, CA, October 20-24, 2003.

395.     Comparison of three back trajectory based models--PSCF, SQTBA, residence-time weighted concentration model for identifying particle sources for Potsdam and Stockton, New York, L. Zhou, P.K. Hopke, and W. Liu, presented to 21st Annual Conference of the American Association for Aerosol Research, Anaheim, CA, October 20-24, 2003.

396.     Advanced Factor Analysis for Aerosol Composition Data with Various Temporal Resolutions, L. Zhou, P.K. Hopke, and P. Paatero, presented to 21st Annual Conference of the American Association for Aerosol Research, Anaheim, CA, October 20-24, 2003.

397.     Source Identification for the Ambient Aerosols at 3 IMPROVE Sites in Canada, W. Zhao and P.K. Hopke, presented to 21st Annual Conference of the American Association for Aerosol Research, Anaheim, CA, October 20-24, 2003.

398.     Evaluation of Semi-continuous Organic/Elemental Carbon Aerosol by Comparison with Other Instrument Results and Meteorological Data in Rubidoux, California, P. Jaques, Doh-Won Lee, C. Sioutas, and R. Cary, presented to 21st Annual Conference of the American Association for Aerosol Research, Anaheim, CA, October 20-24, 2003.

399.     Identification of Source Locations Using Hybrid Receptor Modeling: Vapor Phase Mercury, Y.J. Han, T.M. Holsen, S.O. Lai, K.W. Lee, P.K. Hopke, M. Milligan, S.M. Yi, and W. Liu, presented to 21st Annual Conference of the American Association for Aerosol Research, Anaheim, CA, October 20-24, 2003.

400.     Deposition and Ambient Concentrations of PBTs (Hg, PCBs, DDE, MIREX, HCB and Dioxin/Furans) in the Lake Ontario Region, K.W. Lee, S.O. Lai, T.M. Holsen, and P.K. Hopke, presented to 21st Annual Conference of the American Association for Aerosol Research, Anaheim, CA, October 20-24, 2003.

401.     Characteristics of Nucleation and Growth Events of Ultrafine Particles Measured in Rochester, NY: Effect of SO₂ and Wind Direction, C.-H. Jeong, P.K. Hopke, D. Chalupa, M. Utell, and H.D. Felton, presented to 21st Annual Conference of the American Association for Aerosol Research, Anaheim, CA, October 20-24, 2003.

402.     In-State/Out-State Sources of PM_2.5 in New York State, S.O. Lai, W. Liu, Y.-J. Han, K.-W. Lee, Chris Antolina, T.M. Holsen, P.K. Hopke, M. Milligan, presented to 21st Annual Conference of the American Association for Aerosol Research, Anaheim, CA, October 20-24, 2003.

403.     Preliminary Data on the N-Pentanol - Helium Nucleation Rates up to 120 Atmospheres, M. Anisimov and P.K. Hopke, presented to 21st Annual Conference of the American Association for Aerosol Research, Anaheim, CA, October 20-24, 2003.

404.     Validation of the Potential Source Contribution Function using the July 2002 Quebec Fire Episode, B.A. Begum, E. Kim, C.-H. Jeong, D.-W. Lee, P.K. Hopke, presented to 21st Annual Conference of the American Association for Aerosol Research, Anaheim, CA, October 20-24, 2003.

405.     Rotation Control in Factor Analytical Model, P. Paatero, P.K. Hopke, B.A. Begum, S.K. Biswas, presented to 21st Annual Conference of the American Association for Aerosol Research, Anaheim, CA, October 20-24, 2003.

406.     Source Apportionment of SEARCH Atlanta Data Through a Multi-Linear Approach, B.Diefendorf, E. Kim and P.K. Hopke, presented to 21st Annual Conference of the American Association for Aerosol Research, Anaheim, CA, October 20-24, 2003.

407.     Measurement of Fine Particulate Mass, Including the Semi-volatile Constituents, with a GRIMM Monitor, B. Grover, N.L. Eatough, P.K. Hopke and D.J. Eatough, presented to AWMA Symposium on Air Quality Measurement Methods and Technology-2004, Research Triangle Park, NC, April 19-22, 2004.

408.     Lake Ontario Air Deposition Study (LOADS) - Seasonal Trends of Polychlorinated Biphenyls, DDE, HCB, and Mirex, J.J. Pagano, T.M. Holsen. P.K. Hopke, M.S. Milligan, S,M. Yi, and J.R. Chiarenzelli, presented to the 47th Annual Conference on Great Lakes Research, Waterloo, Ontario, Canada, May 24-28, 2004.

409.     Improving Source Apportionment of Fine Particles in the Eastern U.S. Utilizing Temperature Resolved Carbon Fractions, E. Kim and P.K. Hopke, presented to the 97^th Annual Conference of the Air and Waste Management Association, Indianapolis, IN, June 22-25, 2004.

410.     Measurement of Total PM_2.5 Mass (Nonvolatile plus Semi-Volatile) with the FDMS TEOM Monitor, B.D. Grover, M. Kleinman, N.L. Eatough, D.J. Eatough, P.K. Hopke, J. Chow, J. Watson, M.B. Meyer, J. Ambs, W.E. Wilson, presented to the 97^th Annual Conference of the Air and Waste Management Association, Indianapolis, IN, June 22-25, 2004.

411.     Measurement of PM_2.5 Nonvolatile and Semi-Volatile Organic Material with the Sunset Laboratory Carbon Aerosol Monitor, B.D. Grover, M. Kleinman, N.L. Eatough, D.J. Eatough. R.A. Cary, P.K. Hopke, D.F. Smith, W.E. Wilson, presented to the 97^th Annual Conference of the Air and Waste Management Association, Indianapolis, IN, June 22-25, 2004.

412.     Experimental Proof of the Two-Channel Nucleation near the Triple Point, M. Anisimov and P. K. Hopke, presented to the 16th International Conference on Nucleation and Atmospheric Aerosols, Kyoto, Japan, July 26-30, 2004.

413      Heterogeneous Nucleation and Condensation Spectra of Aerosol Nanoparticles, V. Y. Smorodin and P. K. Hopke, presented to the 16th International Conference on Nucleation and Atmospheric Aerosols, Kyoto, Japan, July 26-30, 2004.

414.     Some General Requirements for Vapor Nucleation Rate Measurements, M. P. Anisimov and P. K. Hopke, presented to the 16th International Conference on Nucleation and Atmospheric Aerosols, Kyoto, Japan, July 26-30, 2004.

415.     Computer Algorithm for Nucleation Rate Surface Construction, M. P. Anisimov L. Anisimova, P. Turner, and P. K. Hopke, presented to the 16th International Conference on Nucleation and Atmospheric Aerosols, Kyoto, Japan, July 26-30, 2004

416.     The Use of Time-Resolved Measurements for Distinguishing Gasoline Emissions from Diesel Emissions in Source Apportionment of Fine Particles, E. Kim and P.K. Hopke, presented to 16^th Conference of the International Society for Environmental Epidemiology, New York, NY, August 1-4, 2004.

417.     Experimental Proof of the Two-Channel Nucleation in the Triple Point Neighborhood, M. P. Anisimov, P. K. Hopke, presented to the 2004 European Aerosol Conference, Budapest, Hungary, September 6-10, 2004.

418.     Desirable Conditions for Vapor Nucleation Rate Measurements, M. P. Anisimov, P. K. Hopke, presented to the 2004 European Aerosol Conference, Budapest, Hungary, September 6-10, 2004.

419.     Anomalous Nucleation and Growth of 1 to 200 nm Aerosols and the Formation and Transport of “Geoaerosols” R. F. Holub, P. K. Smrz, B. D. Honeyman, P. K. Hopke, G. M. Reimer, presented to the 2004 European Aerosol Conference, Budapest, Hungary, September 6-10, 2004.

420.     Source Apportionment of Ambient Aerosols in Houston, TX Using Ann Based Receptor Model W. Zhao and P. K. Hopke, presented to the 2004 European Aerosol Conference, Budapest, Hungary, September 6-10, 2004.

421.     Comparison Between Conditional Probability Function and Nonparametric Regression for the Source Direction of Fine Particles. E. Kim and P. K. Hopke, presented to the 2004 European Aerosol Conference, Budapest, Hungary, September 6-10, 2004.

422.     Source Identification of the Secondary Sulfate Aerosols in the Eastern U.S. Utilizing Temperature Resolved Carbon Fractions, E. Kim and P.K. Hopke, presented to the 2004 Annual Meeting of the American Association for Aerosol Research, Atlanta, GA, October 4-8, 2004.

423.     Houston Ozone Precursor Study: Source Identification of Volatile Organic Compound in Houston Ship Channel Area, E. Kim, P.K. Hopke, S.G. Brown, H.R. Hafner, and P.T. Roberts, presented to the 2004 Annual Meeting of the American Association for Aerosol Research, Atlanta, GA, October 4-8, 2004.

424.     Houston Ozone Precursor Study: Spatial and Temporal Analyses and Reconciliation of Volatile Organic Compound Sources in the Houston Ship Channel Area, S.G Brown, H.R. Hafner, P.T. Roberts, E. Kim, P.K. Hopke, presented to the 2004 Annual Meeting of the American Association for Aerosol Research, Atlanta, GA, October 4-8, 2004.

425.     Investigation of the Relationship Between Chemical Composition and Size Distribution of Airborne Particles by Partial Least Square (PLS) and Positive Matrix Factorization (PMF), L. Zhou, P.K. Hopke, C.O. Stanier, S.N. Pandis, J.M. Ondov, J. P. Pancras, presented to the 2004 Annual Meeting of the American Association for Aerosol Research, Atlanta, GA, October 4-8, 2004.

426.     Performance Evaluation of the New Wide-Range Particle Spectrometer, S. Dhaniyala, J. Rodrigue, and P.K. Hopke, presented to the 2004 Annual Meeting of the American Association for Aerosol Research, Atlanta, GA, October 4-8, 2004.

427.     Research of Glass Fiber Behavior in Fiber Length Classifier, P.K. Hopke, Z. Wang, P.A, Baron, G. Deye, Y.-S. Cheng, presented to the 2004 Annual Meeting of the American Association for Aerosol Research, Atlanta, GA, October 4-8, 2004.

428.     Source Identification of Ambient Aerosols Through ATOFMS Data, W. Zhao, P. K. Hopke, X. Qin, K.A. Prather, presented to the 2004 Annual Meeting of the American Association for Aerosol Research, Atlanta, GA, October 4-8, 2004.

429.     Aerosol Source Apportionment by Positive Matrix Factorization Based on Single Particle Mass Spectral Data, J.H. Lee, W. Zhao, P.K. Hopke, K.A. Prather, presented to the 2004 Annual Meeting of the American Association for Aerosol Research, Atlanta, GA, October 4-8, 2004.

430.     PM2.5 Source and Sources Contributions in New York City, Y. Qin, P. K. Hopke, and E. Kim, presented to the 2004 Annual Meeting of the American Association for Aerosol Research, Atlanta, GA, October 4-8, 2004.

431.     Source Identification and Spatial Distribution of Fine Particles Measured at the Speciation Trends Network Sites in New York and Vermont, US, E. Kim, P.K. Hopke, and Y. Qin, presented to the 2004 Annual Meeting of the American Association for Aerosol Research, Atlanta, GA, October 4-8, 2004.

432.     The Potential Source-Receptor Relationship of Hg Event-based Wet Deposition at Potsdam, NY, S.-O. Lai, T.M. Holsen, and P.K. Hopke, presented to the 2004 Annual Meeting of the American Association for Aerosol Research, Atlanta, GA, October 4-8, 2004.

433.     Airflow and Particle Transport in a Human Nose, P. Zamankhan, G. Ahmadi, P.K. Hopke, Y.S.Cheng, and P.A. Baron, presented to the 2004 Annual Meeting of the American Association for Aerosol Research, Atlanta, GA, October 4-8, 2004.

434.     Analysis of Water Soluble Short Chain Organic Acids in Ambient Particulate Matter, R.S. Raman and P.K Hopke, presented to the 2004 Annual Meeting of the American Association for Aerosol Research, Atlanta, GA, October 4-8, 2004.

435.     PM2.5 Technology Assessment and Characterization Study in New York PMTACS-NY: an Overview of the 2004 Winter Intensive In Queens, NY, K.L. Demerjian, J. Schwab, G. Lala, O. Hogrefe, Y. Li, S.Weimer, D. Orsini, F. Drewnick, K. Rhoads, D. Felton, G. Boynton, T. Lanni, B. Frank, L. Husain, X. Zhou, W. Brune, X. Ren, D. Worsnop, P.K. Hopke, P. Venkatachari, H. Patashnick, J. Ambs, J. Jimenez, presented to the 2004 Annual Meeting of the American Association for Aerosol Research, Atlanta, GA, October 4-8, 2004.

436.     Estimation of Organic Carbon Blank Values and Error Structures of the Speciation Trends Network Data, E. Kim, Y. Qin, P. K. Hopke, presented to the 2004 Annual Meeting of the American Association for Aerosol Research, Atlanta, GA, October 4-8, 2004.

437.     Measurements Performance of Continuous PM2.5 Mass Concentration: Effects of Aerosol Composition and Relative Humidity, J.H. Lee, P.K. Hopke, T.M. Holsen, and W.E. Wilson, presented to the 2004 Annual Meeting of the American Association for Aerosol Research, Atlanta, GA, October 4-8, 2004.

438.     Predicting Bulk Ambient Aerosol Compositions from ATOFMS Data, W. Zhao, P.K. Hopke, X. Qin, and K.A. Prather, presented to the 2004 Annual Meeting of the American Association for Aerosol Research, Atlanta, GA, October 4-8, 2004.

439.     Receptor Modeling for Highly-Time (Hourly and 24-hourly) Resolved Species: The Baltimore Supersite. Ogulei, D., Hopke, P., Zhou, L.,Paatero, P., Park, S. S., Ondov, J. M. presented to the 2004 Annual Meeting of the American Association for Aerosol Research, Atlanta, GA, October 4-8, 2004.

440.     Source Identification for Fine Particulates over Lye Brook, Vermont Using Source-Receptor Modeling Techniques, P. Panday, N. Gao, P.K. Hopke, E. Kim, and R. Poirot, presented to the 32nd Northeast Regional Meeting of the American Chemical Society, Rochester, NY, October 31 to November 3, 2004.

441.     Seasonal Correlations Between of NIOSH and IMPROVE Carbon Measurements, M.-S. Bae, J.J. Schauer, J.R. Turner, J.C. Chow, P.K. Hopke, presented to the Particulate Matter Supersites Program & Related Studies Conference, Atlanta, GA, February 7-11, 2005.

442.     Source Apportionment of Detroit Fine Particulate Matter Using Positive Matrix Factorization, A.E. Gildemeister and P.K. Hopke, presented to the Particulate Matter Supersites Program & Related Studies Conference, Atlanta, GA, February 7-11, 2005.

443.     Source Apportionment of Midwest PM_2.5 Using Advanced Receptor Model, J.-H. Lee, P.K. Hopke, D.M. Kenski, and M. Koerber, presented to the Particulate Matter Supersites Program & Related Studies Conference, Atlanta, GA, February 7-11, 2005.

444.     Estimating Uncertainties in Factor Analytic Models, S. Eberly, P. Paatero, P.K. Hopke, presented to the Particulate Matter Supersites Program & Related Studies Conference, Atlanta, GA, February 7-11, 2005.

445.     Transport Dispersion and Deposition of One Minute Particle Size Distributions Between 5 and 560 Nanometers near a Major International Trade Bridge Connecting the U.S. and Canada: a Model Comparison with Experimental Results, P. Jaques, K. Nazridoust, G. Ahmadi, P.K Hopke, A. Ferro and T. McAuley. presented to the Particulate Matter Supersites Program & Related Studies Conference, Atlanta, GA, February 7-11, 2005.

446.     Source Apportionment of Fine Particles in Potsdam and Stockton, NY, Utilizing the Composition of Water-soluble Short-Chain Organic Acids, R.S. Raman and P.K Hopke, presented to the Particulate Matter Supersites Program & Related Studies Conference, Atlanta, GA, February 7-11, 2005.

447.     An Ion Chromatographic Method for Analysis of Water-Soluble Short-Chain Organic Acids in Ambient Particulate Matter, R.S. Raman and P.K Hopke, presented to the Particulate Matter Supersites Program & Related Studies Conference, Atlanta, GA, February 7-11, 2005.

448.     Spatial and Temporal Variability of Particulate Matter in Two Neighborhoods near a Major International Trade Bridge at Buffalo, N.Y. and Fort Erie Canada, P. Jaques, K. Nazridoust, G. Ahmadi, P.K. Hopke, A. Ferro and T. McAuley., presented to the Particulate Matter Supersites Program & Related Studies Conference, Atlanta, GA, February 7-11, 2005.

449.     Source Apportionment of Baltimore Aerosol from Combined Size Distribution and Chemical Composition Data, D. Ogulei, P.K. Hopke, L. Zhou, J. P. Pancras, N. Nair, J.M. Ondov, presented to the Particulate Matter Supersites Program & Related Studies Conference, Atlanta, GA, February 7-11, 2005.

450.     Comparison Between Measured and Estimated Uncertainties for Source Apportionment of the Speciation Trends Network Data, E. Kim, P.K. Hopke, and S. Eberly, presented to the Particulate Matter Supersites Program & Related Studies Conference, Atlanta, GA, February 7-11, 2005.

451.     Source Identification of PM2.5 Measured at the Speciaton Trends Network Sites in Northern New York Area, E. Kim, and P.K. Hopke, presented to the Particulate Matter Supersites Program & Related Studies Conference, Atlanta, GA, February 7-11, 2005.

452.     Identifying Sources of PM_2.5 in Pittsburgh Using PMF and PSCF, N. Pekney, C. Davidson, L. Zhou and P.K Hopke, presented to the Particulate Matter Supersites Program & Related Studies Conference, Atlanta, GA, February 7-11, 2005.

453.     Source Identification for Fine Aerosols in the Mammoth Cave National Park, W. Zhao, and P.K. Hopke, presented to the Particulate Matter Supersites Program & Related Studies Conference, Atlanta, GA, February 7-11, 2005.

454.     Investigation of Sources for Ambient Aerosols in Indianapolis, IN, W. Zhao, and P.K. Hopke, presented to the Particulate Matter Supersites Program & Related Studies Conference, Atlanta, GA, February 7-11, 2005.

455.     Highlights and Lessons Learned: PM2.5 Technology Assessment and Characterization Study in New York. PMTACS-NY Supersite Program, K.L. Demerjian, J. Schwab, G. Lala, O. Hogrefe, Y. Li, S. Weimer D. Felton, G. Boynton, T. Lanni, B. Frank F. Drewnick, D. Orsini, K. Rhoads, L. Husain, X. Zhou, V. Dutkiewicz, W. Brune, X. Ren, R. Lesher, D. Worsnop, C. Kolb, M. Zahniser, J.T. Jayne, P.K. Hopke, P. Venkatachari, H. Patashnick, J. Ambs, J. Jimenez, and Z.Qi, presented to the Particulate Matter Supersites Program & Related Studies Conference, Atlanta, GA, February 7-11, 2005.

456.     Penetration of the Ambient Ultrafine Aerosol into a Cardiac Rehabilitation Facility in Rochester, NY, D. Ogulei, P.K. Hopke, D. Chalupa, and M. Utell, presented to the Particulate Matter Supersites Program & Related Studies Conference, Atlanta, GA, February 7-11, 2005.

457.     Identification of Gasoline and Diesel Emissions in the PM2.5 of a Midwestern U.S. Area, E. Kim and P.K. Hopke, presented to the Particulate Matter Supersites Program & Related Studies Conference, Atlanta, GA, February 7-11, 2005.

458.     Influence of Atmospheric Stability on Particle Number Concentration in Toronto, Canada and Rochester, USA., C.-H. Jeong, G. Evans, M. Fila, P.K. Hopke, D. Chalupa, M. Utell, H.D. Felton, presented to the Particulate Matter Supersites Program & Related Studies Conference, Atlanta, GA, February 7-11, 2005.

459.     Characterization of Reactive Oxygen Species Trends in Flushing, New York, P. Venkatachari, P.K. Hopke, W.H. Brune, X. Ren, R. Lesher, and J. Mao, M. Mitchell, presented to the Particulate Matter Supersites Program & Related Studies Conference, Atlanta, GA, February 7-11, 2005.

460.     Generation of Charged Aerosols by High-voltage Electric Power Lines, P.A. Valberg, P.K. Hopke, and S.-M. Yi, presented to the Particulate Matter Supersites Program & Related Studies Conference, Atlanta, GA, February 7-11, 2005.

461.     Measurement of Fine Particulate Matter (Nonvolatile and Semivolatile Fractions) in Fresno, CA, B.D. Grover, N.L. Eatough, D.J. Eatough. J.L. Ambs, M.B. Meyer, P.K. Hopke, R. Al-Horr, D.W. Later, J. Chow, J. Watson, and W.E. Wilson, presented to the Particulate Matter Supersites Program & Related Studies Conference, Atlanta, GA, February 7-11, 2005.

462.     Identification of Gasoline and Diesel Emissions in the PM2.5 Measured at the Speciation Trends Network Sites in the Northeastern U.S., E. Kim and P.K. Hopke, presented to 2005 European Aerosol Conference, Ghent, Belgium, August 28 to September 2, 2005.

463.     Source apportionment of fine and coarse particulate matter and daily mortality in two US cities - A comparison of different methods, M. Stolzel, F. Laden, D.W. Dockery, J. Schwartz, E. Kim, P.K. Hopke, L.M. Neas, presented to The Seventeenth Conference of the International Society for Environmental Epidemiology, Johannesburg, South Africa, September 13-16, 2005.

464.     Results and implications of the workshop on the source apportionment of PM health effects, G. Thurston, K. Ito, T. Mar, W.F. Christensen, D.J. Eatough, RC Henry, E. Kim, F. Laden, R. Lall, TV Larson, H. Liu, L. Neas, J. Pinto, M, Stolzel, H. Suh, PK Hopke, presented to The Seventeenth Conference of the International Society for Environmental Epidemiology, Johannesburg, South Africa, September 13-16, 2005.

465.     Investigation of Glass Fiber Deposition onto Inner Walls of Straight Brass Tube. Z. Wang, P.K. Hopke, G. Ahmadi, P.A. Baron, G. Deye, Y.-S. Cheng, W.-C. Su, presented to 2005 Annual Meeting of the American Association for Aerosol Research, Austin, TX, October 17-21, 2005.

466.     Analysis of Indoor Particle Size Distributions from an Occupied Townhouse Using Positive Matrix Factorization. D. Ogulei, P.K. Hopke, L. Wallace, presented to 2005 Annual Meeting of the American Association for Aerosol Research, Austin, TX, October 17-21, 2005.

467.     Fibrous Particle Deposition on Human Nasal Passage. Z. Wang, P.K. Hopke, G. Ahmadi, P.A. Baron, G. Deye, Y.-S. Cheng, W.-C. Su, presented to 2005 Annual Meeting of the American Association for Aerosol Research, Austin, TX, October 17-21, 2005.

468.     Spatial and Temporal Variability of Black Carbon in New York City in Winter 2004. P. Venkatachari, L. Zhou, P.K. Hopke, H.D. Felton, O.V. Rattigan, J.J. Schwab, K.L. Demerjian, presented to 2005 Annual Meeting of the American Association for Aerosol Research, Austin, TX, October 17-21, 2005.

469.     Identification of the Toxicological Effects of Reactive Oxidative Species. P. Venkatachari, N. Dutta, P. Rao, P.K. Hopke, presented to 2005 Annual Meeting of the American Association for Aerosol Research, Austin, TX, October 17-21, 2005.

470.     The Comparison Between IMPROVE and STN Source Identification at Seattle. E. Kim, P.K. Hopke, T. Larson, J. Lewtas, presented to 2005 Annual Meeting of the American Association for Aerosol Research, Austin, TX, October 17-21, 2005.

471.     Combined Receptor Model for Ambient and Personal Exposure Samples. W. Zhao, P.K. Hopke, G. Norris, presented to 2005 Annual Meeting of the American Association for Aerosol Research, Austin, TX, October 17-21, 2005.

472.     Characterization of Fine Aerosols in the South Coast Air Basin. A.E. Gildemeister, P.K. Hopke, presented to 2005 Annual Meeting of the American Association for Aerosol Research, Austin, TX, October 17-21, 2005.

473.     Source Apportionment of the Ambient Aerosol in Zürich, Switzerland. R. Sunder Raman, P.K. Hopke, E. Kim, N. Bukowiecki, F. Hegedus, E. Weingartner, U. Baltensperger, M. Hill, R. Gehrig, P. Linemann, G. Falkenberg, presented to 2005 Annual Meeting of the American Association for Aerosol Research, Austin, TX, October 17-21, 2005.

474.     Elemental Analysis of Air Particulate Matter and Application to Source Fingerprinting. B.A. Begum, S. K. Biswas, P.K. Hopke, presented to 2005 Annual Meeting of the American Association for Aerosol Research, Austin, TX, October 17-21, 2005.

475.     Numerical Simulation of Transport and Dispersion of Vehicular Particulate Emissions near a Major International Bridge Compared With Experimental Results. C. Liu, G. Ahmadi, K. Nazridoust, A.R. Ferro, T.R. McAuley, P.K. Hopke, P.A. Jaques, presented to 2005 Annual Meeting of the American Association for Aerosol Research, Austin, TX, October 17-21, 2005.

476.     Topology of the Nucleation Rate Surfaces for Laser Ablation of Crystals. M.P. Anisimov, A.M. Baklanov, V.S. Akimov, P.K. Hopke, presented to 2005 Annual Meeting of the American Association for Aerosol Research, Austin, TX, October 17-21, 2005.

477.     An Intercomparison of Measurement Methods for Carbonaceous Aerosol in the Ambient Air in New York City. P. Venkatachari, L. Zhou, P.K. Hopke, J.J. Schwab, K.L. Demerjian, O. Hogrefe, H.D. Felton, O.V. Rattigan, presented to 2005 Annual Meeting of the American Association for Aerosol Research, Austin, TX, October 17-21, 2005.

478.     Impacts of Ship Diesel Emissions to Airborne PM2.5 in the San Diego Area. J.H. Lee, P.K. Hopke, presented to 2005 Annual Meeting of the American Association for Aerosol Research, Austin, TX, October 17-21, 2005.

479.     Secondary Sulfate PM2.5 in the Great Smoky Mountains Area. E. Kim, P.K. Hopke, presented to 2005 Annual Meeting of the American Association for Aerosol Research, Austin, TX, October 17-21, 2005.

480.     Estimation of Source Apportionment of PM2.5 Using the PMF Model in San Francisco Bay Area. I. Hwang, J.H. Lee, P.K. Hopke, presented to 2005 Annual Meeting of the American Association for Aerosol Research, Austin, TX, October 17-21, 2005.

481.     An Integrated Synthesis of Key and Policy Relevant Findings from EPA’s PM Supersites Program and Related Studies. P.A. Solomon, P.K. Hopke, J.R. Froines, presented to 2005 Annual Meeting of the American Association for Aerosol Research, Austin, TX, October 17-21, 2005.

482.     Identification of Sources to Airborne PM2.5 at the St. Louis Midwest Supersite. J.H. Lee, P.K. Hopke, J. Turner, J. Schauer, presented to 2005 Annual Meeting of the American Association for Aerosol Research, Austin, TX, October 17-21, 2005.

483.     Computer Simulation of Particle Deposition in Human Tracheobronchial Tree with 3-D Asymmetric Bifurcation Model. L. Tian, G. Ahmadi, P.K. Hopke, Y.-S. Cheng, presented to 2005 Annual Meeting of the American Association for Aerosol Research, Austin, TX, October 17-21, 2005.

484.     3D Analysis of Flow and Nano-size Particle Transport and Deposition in a Human Nasal Cavity. P. Zamankhan, G. Ahmadi, P.K. Hopke, Y.-S. Cheng, presented to 2005 Annual Meeting of the American Association for Aerosol Research, Austin, TX, October 17-21, 2005.

485.     Source Comparisons of PM2.5 Measured at the Speciation Trends Network Sites Across US. E. Kim, P.K. Hopke, presented to 2005 Annual Meeting of the American Association for Aerosol Research, Austin, TX, October 17-21, 2005.

486.     Deposition of Fibers in the Human Nasal Airway, W.C. Su, Y.S. Cheng, P.K. Hopke, and G. Ahmadi, presented to 2005 Annual Meeting of the American Association for Aerosol Research, Austin, TX, October 17-21, 2005.

487.     Estimating and minimizing uncertainty in factor analytic results, both in 2-way and in 3-way models, P. Paatero, S.I. Eberly, P.K. Hopke, presented to ThRee-way methods In Chemistry And Psychology (TRICAP2006), June 4-9, 2006.

488.     Suggestions for optimized planning of multivariate monitoring of atmospheric pollution, P. Paatero, S.I. Eberly, P.K. Hopke, presented to the 2006 Summit on Environmental Modelling and Software, Burlington, VT, July 9-13, 2006.

489.     The US EPA Implementation of Positive Matrix Factorization and a New Approach to Uncertainty Estimation, P.K. Hopke, P. Paatero, S.I. Eberly, presented to the 2006 Summit on Environmental Modelling and Software, Burlington, VT, July 9-13, 2006.

490.     Comparative analysis of PMF and PCA-MLRA results for PM2.5 at an industrial site in Northern Spain, M. Viana, J. Zabalza, X. Querol, J.M. Santamaria, J.I. Gil, M. Menendez, P.K. Hopke, presented to the 2006 Summit on Environmental Modelling and Software, Burlington, VT, July 9-13, 2006.

491.     Estimation of Mercury Loadings to Lake Ontario:Results from the Lake Ontario Atmospheric Deposition Study (LOADS), S.-O. Lai, T.M. Holsen, Y.-J. Han, P.K. Hopke, S.-M. Yi, P. Blanchard, J.J. Pagano, M.S. Milligan, presented to Eight Internation Conference on Mercury as a Global Pollutant, Madison, WI, August 6-11, 2006.

492.     Source Identifications and Spatial Distributions of PM_2.5 Collected at Multiple Sites in Seattle, WA, E. Kim, P.K. Hopke, T.V. Larson, presented to 2006 International Aerosol Conference, St. Paul MN, September 10-15, 2006.

493.     Use of an Expanded Receptor Model for Personal Exposure Analysis in Urban Schoolchildren with Asthma, W. Zhao, P.K. Hopke, E.W. Gelfand, N. Rabinovitch, presented to 2006 International Aerosol Conference, St. Paul MN, September 10-15, 2006.

494.     Investigation of Carbonaceous Aerosol Behavior at Two Locations in New York State, R. Sunder Raman, P.K. Hopke, presented to 2006 International Aerosol Conference, St. Paul MN, September 10-15, 2006.

495.     Modeling Source Contributions to Ultrafine Particle Number Concentrations Measured in Rochester, NY, David Ogulei, P.K. Hopke, D. Chalupa, M. Utell, presented to 2006 International Aerosol Conference, St. Paul MN, September 10-15, 2006.

496.     Estimation of Source Apportionment and Potential Source Location of PM_2.5 in Western US IMPROVE Sites, I. Hwang, P.K. Hopke, S.-M. Yi, presented to 2006 International Aerosol Conference, St. Paul MN, September 10-15, 2006.

497.     Investigating Spatial Distribution of Origins for Nitrate and Sulphate in Midwestern Areas via SQTBA and RTWC, W. Zhao, P.K. Hopke, presented to 2006 International Aerosol Conference, St. Paul MN, September 10-15, 2006.

498.     Utilizing Backward Trajectories in Multilinear Receptor Model, E. Kim, P.K. Hopke, D.J. Eatough, D.V. Martello, presented to 2006 International Aerosol Conference, St. Paul MN, September 10-15, 2006.

499.     Sources of Fine Particulate Species in Ambient Air over Lake Champlain Basin, Vermont, A.E. Gildemeister, P.K. Hopke, E. Kim, N. Gao, K. Krumhansl, K. Lafferty, R.L. Poirot, presented to 2006 International Aerosol Conference, St. Paul MN, September 10-15, 2006.

500.     Source Identification and Health Effect of PM_2.5 in Seoul, Korea, J. Huh, H.S Kim, S.-H. Kim, Y.-S. Seo, D.M. Paek, S.-M. Yi, P.K Hopke, presented to 2006 International Aerosol Conference, St. Paul MN, September 10-15, 2006.

501.     Source Regions for Fine Particulate Matter in New Jersey, A.E. Gildemeister, P.K. Hopke, E. Kim, presented to 2006 International Aerosol Conference, St. Paul MN, September 10-15, 2006.

502.     The U.S. Environmental Protection Agency Version of Positive Matrix Factorization, P.K. Hopke, P. Paatero, presented to 2006 International Aerosol Conference, St. Paul MN, September 10-15, 2006.

503      Seasonal Variation of 2- Methyltetrols in the Ambient Air Samples, X. Xia, P.K. Hopke, P. Li, presented to 2006 International Aerosol Conference, St. Paul MN, September 10-15, 2006.

504.     Analysis of Ambient Semicontinuous Data Collected at the St. Louis - Midwest Supersite, E. Kim, P.K. Hopke, J.R. Turner, presented to 2006 International Aerosol Conference, St. Paul MN, September 10-15, 2006.

505.     Comparing Several PM_2.5 Source Apportionment Results for Use in a Health Study in Atlanta, Georgia, A. Marmur, J.A. Mulholland, A.G. Russell, E. Kim, P.K. Hopke, J.A. Sarnat, M. Klein, P.E. Tolbert, presented to 2006 International Aerosol Conference, St. Paul MN, September 10-15, 2006.

506.     Topologies of Nucleation Rate Surfaces for Laser Ablation of Solids, M. Anisimov, A.M. Baklanov, T.I. Golavskaya, P.K. Hopke, presented to 2006 International Aerosol Conference, St. Paul MN, September 10-15, 2006.

507.     Fiber Deposition in the Tracheobronchial Region: Comparison of Experimental Data and Theoretical Models, Y. Zhou, W.-C. Su, G. Ahmadi, P.K. Hopke, Y.S. Cheng, presented to 2006 International Aerosol Conference, St. Paul MN, September 10-15, 2006.

508.     Computer Simulation of Ellipsoidal Particle Transport and Deposition in Human Tracheobronchial Tree with 3-d Symmetric and Asymmetric Bifurcation Model, L. Tian, G. Ahmadi, P.K. Hopke, Y.-S. Cheng, presented to 2006 International Aerosol Conference, St. Paul MN, September 10-15, 2006.

509.     Human Nasal Passage Fibrous Particle Deposition: the Influence of Particle Length, Flow Rate and Passage Geometry, Z. Wang, P.K Hopke, G. Ahmadi, P. Baron, G. Deye, Y.-S. Cheng, W.-C. Su, presented to 2006 International Aerosol Conference, St. Paul MN, September 10-15, 2006.

510.     Computational Analysis of Spherical Particle Transport and Deposition in the Human Nasal System for Impaction Regime, P. Zamankhan, G. Ahmadi, P.K. Hopke, Y.-S. Cheng, presented to 2006 International Aerosol Conference, St. Paul MN, September 10-15, 2006.

511.     Determination of Hexavalent Chromium by Ion Chromatography (IC), P.K. Hopke, M. Yang, E.F. Hopke, presented to 2006 International Aerosol Conference, St. Paul MN, September 10-15, 2006.

512.     Application of NCDMA (Nanoparticle Crossflow Differential Mobility Analyzer) for Volatility Measurements, D.-K. Song, S. Dhaniyala, P.K. Hopke, presented to 2006 International Aerosol Conference, St. Paul MN, September 10-15, 2006.

513.     Examining the Cardiovascular Health Effects of Atlanta Aerosol Using Three Source Apportionment Techniques, J.A. Sarnat, M. Klein, P.E. Tolbert, A. Marmur, A.G. Russell, J.A. Mulholland, E. Kim, P.K. Hopke, presented to 2006 International Aerosol Conference, St. Paul MN, September 10-15, 2006.

514.     Summary of Emissions Management Strategy Policy Relevant Findings from EPA’s PM Supersites Program, P.A. Solomon and P.K. Hopke, presented to the 2006 national Air Monitoring Conference, Las Vegas, NV, November 6-9, 2006.

515.     Determination of Source Apportionments of Coarse Particles during the Regional Air Pollution Study (RAPS) in St. Louis, Missouri, I.J. Hwang and P.K. Hopke, presented to the 100^th National Meeting of the Air and Waste Management Association, Pittsburgh, PA, June 26-29, 2007.

516.     Transport and Deposition of Ellipsoidal Fibers in Laminar Flows, L. Tian, G. Ahmadi, Z. Wang and P.K. Hopke, presented to 6^th International Conference on Multiphase Flow, ICMF 2007, Leipzig, Germany, July 9-13, 2007.

517.     State of the Nucleation Rate Standard Design, M.P. Anisimov, V.A. Postnikov, and P.K. Hopke, presented to 3rd International Symposium on Nanotechnology, Occupational and Environmental Health. Taiwan, Taypei, August 29 - September 1, 2007.

518.     Descriptive Time Series Analysis of Fine Carbonaceous Aerosol at Potsdam, NY, R. Sunder Raman, P.K. Hopke, presented to 2007 European Aerosol Conference, Salzburg, Austria, September 9-14, 2007.

519.     Source Apportionments and Spatial Variability of Coarse Particle During the Regional Air Pollution Study (RAPS), I.J. Hwang, P.K. Hopke, J.P. Pinto, presented to 2007 European Aerosol Conference, Salzburg, Austria, September 9-14, 2007.

520.     Human Nasal Passage Fibrous Particle Deposition: the Influence of Particle Length, Flow Rate and Passage Geometry, Z. Wang, P.K. Hopke, presented to 2007 European Aerosol Conference, Salzburg, Austria, September 9-14, 2007.

521.     Fulvic acids and their sulfated and nitrated analogues in atmospheric aerosol - Determination by ultrahigh resolution electrospray mass spectrometry, T. Reemtsma, A. These, M. Linscheid, P.K. Hopke, presented to 2007 European Aerosol Conference, Salzburg, Austria, September 9-14, 2007.

522.     Source apportionment of Prague aerosol from combined particle number size distribution and gaseous composition data by bilinear Positive Matrix Factorization, D. Thimmaiah, J. Hovorka and P.K. Hopke, presented to 2007 European Aerosol Conference, Salzburg, Austria, September 9-14, 2007.

523.     The Effectiveness of an Integrated Energy Recovery Ventilator on the Air Quality in the Bedroom of Asthmatic Children, 5-14 Years, and Their Improved Respiration and Restfulness. P.A. Jaques, A.R. Ferro, P.K. Hopke, C. Gressani, L.E. Wetzel, presented to the 2007 Annual Meeting of the American Association for Aerosol Research, Reno, NV, September 23-28, 2007.

524.     Numerical Simulations of Inertial Particle Deposition in a Realistic Nasal Cavity, K. Shanley, P. Zamankhan, G. Ahmadi, P.K. Hopke, Y.-S. Cheng, presented to the 2007 Annual Meeting of the American Association for Aerosol Research, Reno, NV, September 23-28, 2007.

525.     Applications of the Advanced EPA PMF and PMF2 Model for PM2.5 Source Apportionment. I. Hwang, P.K. Hopke, P. Paatero, presented to the 2007 Annual Meeting of the American Association for Aerosol Research, Reno, NV, September 23-28, 2007.

526.     SOA formation and growth from ozononlysis of terpene in indoor environments. X. Chen, P.K. Hopke, presented to the 2007 Annual Meeting of the American Association for Aerosol Research, Reno, NV, September 23-28, 2007.

527.     Comparison of the effects of two cluster analysis methods on aerosol time of flight mass spectrometry data. W. Zhao, P.K. Hopke, K.A. Prather, presented to the 2007 Annual Meeting of the American Association for Aerosol Research, Reno, NV, September 23-28, 2007.

528.     Interference of Organic Signals in Highly Time Resolved Nitrate Measurements by Aerosol Mass Spectrometer. M.-S. Bae, J.J. Schwab, Q. Zhang, O. Hogrefe, K.L. Demerjian, S. Weimer, K. Rhoads, D. Orsini, P. Venkatachari, P.K. Hopke, presented to the 2007 Annual Meeting of the American Association for Aerosol Research, Reno, NV, September 23-28, 2007.

529.     A New Automated Monitor for the Measurement of Particulate Reactive Oxidant Concentrations in the Atmosphere, P. Venkatachari, P.K. Hopke, presented to the 2007 Annual Meeting of the American Association for Aerosol Research, Reno, NV, September 23-28, 2007.

530.     Supercritical Vapor-Gas Binary Solution Nucleation. M.P. Anisimov, V.F. Podgornyii, P.K. Hopke, presented to the 2007 Annual Meeting of the American Association for Aerosol Research, Reno, NV, September 23-28, 2007.

531.     A Compositional Miniature Electrical Aerosol Spectrometer (c-MEAS) for Volatility study of Ultrafine Particles, M. Ranjan, S. Dhaniyala, P.K. Hopke, presented to the 2007 Annual Meeting of the American Association for Aerosol Research, Reno, NV, September 23-28, 2007.

532.     Transport and Deposition of Ellipsoidal Fiber in Human Tracheobronchial Tree. L. Tian, G. Ahmadi, P.K. Hopke, Y.-S. Cheng, presented to the 2007 Annual Meeting of the American Association for Aerosol Research, Reno, NV, September 23-28, 2007.

533.     Nucleation Rate Standard. M.P. Anisimov, V.A. Postnikov, P.K. Hopke, presented to the 2007 Annual Meeting of the American Association for Aerosol Research, Reno, NV, September 23-28, 2007.

534.     Glass Fiber Deposition in Human Nasal Models. I. Experimental, Z. Wang, P.K. Hopke, presented to the 2007 Annual Meeting of the American Association for Aerosol Research, Reno, NV, September 23-28, 2007.

535.     Glass Fiber Deposition in Human Nasal Models. II. Empirical Equations, Z. Wang, P.K. Hopke presented to the 2007 Annual Meeting of the American Association for Aerosol Research, Reno, NV, September 23-28, 2007.

536.     Quantitative Results from Single Particle Characterization Data, P.K. Hopke, presented to the FACSS 2007, Memphis, TN, October 14-18, 2007.

537.     SOA Formation and Growth From Ozonolysis of Terpene in Indoor Environments, X. Chen and P.K. Hopke, presented to American Institute of Chemical Engineers 2007 Annual National Convention, St. Lake City, UT, November 4-9, 2007.

538.     Ultrahigh Resolution Mass Spectrometry and Hyphenation Mass Spectrometry for Molecular Level Identification of Fulvic Acids and Their Sulfated and Nitrated Analogues in Pm2.5 Atmospheric Aerosol, T. Reemtsma, A. These, M. Linscheid, and P.K. Hopke, presented to the European Geosciences Union General Assembly 2008, Vienna, Austria, April 13–18, 2008.

539.     Impacts of an Isolated Single Source in Rural Vermont, P.K. Hopke, P. Venkatachari, P. Jaques, B. Crimmins, R.L. Poirot, and E. Miller presented at AWMA Specialty Conference on Aerosol and Atmospheric Optics: Visual Air Quality and Radiation, Moab, UT, April 28-May 2, 2008.

540.     Great Lakes Fish Monitoring Program: Toxaphene results using GC-MS/MS, X. Xia, B. Crimmins, P. Hopke, J. Pagano, M. Milligan, and T. Holsen, presented to 51^st Annual Conference on Great Lakes Research, Peterborough, Ont., May 19-23, 2008.

541.     Spin Trapping for Identification and Characterization of Particle-Bound Reactive Radical Species, J. Pavlovic, X. Chen, and P.K. Hopke, presented to the 2008 Northeast Regional Meeting (NERM) of the American Chemical Society, Burlington, VT, June 29 - July 2, 2008.

542.     Secondary Organic Aerosol from α-Pinene Ozonolysis in a Dynamic Chamber System: Density and Particle Bound Reactive Oxygen Species (ROS) Measurements, X. Chen and P.K. Hopke, presented to the 2008 Northeast Regional Meeting (NERM) of the American Chemical Society, Burlington, VT, June 29 - July 2, 2008.

543.     Automated Sampling System for Particle Bound Reactive Oxygen Species, L. Sun, J.Pavlovic, X. Chen, B. Crimmins, and P.K. Hopke, presented to the 2008 Northeast Regional Meeting (NERM) of the American Chemical Society, Burlington, VT, June 29 - July 2, 2008.

544.     Characterizing Benzene and Other Air Toxics In Akwesasne (NY), R. Li, S. Kalenge, P.K. Hopke, A. Rossner, and A. Benedict, presented to the 2008 Northeast Regional Meeting (NERM) of the American Chemical Society, Burlington, VT, June 29 - July 2, 2008.

545.     Determination of Toxaphene in Fish Samples by GC/MS, X. Xia, B.S. Crimmins, P.K. Hopke, T.M. Holsen, J.J. Pagano, M.S. Milligan, presented to the 2008 Northeast Regional Meeting (NERM) of the American Chemical Society, Burlington, VT, June 29 - July 2, 2008.

546.     Characterization of Benzene and Other Air Toxics at Akwesasne, S. Kalenge, P.K. Hopke, and A. Rossner, presented to the 2008 Northeast Regional Meeting (NERM) of the American Chemical Society, Burlington, VT, June 29 - July 2, 2008.

547.     Spatial-Temporal Variability of Air Pollutants In Syracuse, NY, J. Ehrhardt, P. K. Hopke, T. Holsen, E. McAddy, X. Wang, K. M. Zhang, and M. J. Mitchell, presented to the 2008 Northeast Regional Meeting (NERM) of the American Chemical Society, Burlington, VT, June 29 - July 2, 2008.

548.     A Multiyear Study of Ultrafine Particle Number Size Distributions and Growth Events in Rochester, NY, J. Kasumba, P.K. Hopke, M. Utell, and D. Chalupa, presented to the 2008 Northeast Regional Meeting (NERM) of the American Chemical Society, Burlington, VT, June 29 - July 2, 2008.

549.     The Level of Toxaphene in Korean Fish, S. Jeon, J. Cho, S. Lee, X. Xia, B. Crimmins, P.K. Hopke, J. Pagano, T.M. Holsen, presented to 28th International Symposium on Halogenated Persistent Organic Pollutants (Dioxin 2008), Birmingham, UK, August 17-22, 2008.

550.     Air cleaner effects on indoor air quality and asthmatic children's health, Y. Xu, S. Raja, A.R. Ferro, P.A. Jaques, S. Surisetty, Y. Qi, P.K. Hopke, C. Gressani, and L.E. Wetzel, presented to the 11th International Conference on Indoor Air Quality and Climate, Copenhagen, Denmark, August 17-22, 2008.

551.     Particle deposition in human nasal airway passage: The extrapolation of glass fiber deposition, P.K. hopke, and Z. Wang, presented to the 2008 European Aerosol Conference, Thessaloniki, Greece, August 24-29, 2008.

552.     Deposition of man-made fibers in the extrathoracic region, Y.S. Cheng, W.C. Su, Y. Zhou, P.K. Hopke, G. Ahmadi and J.C.M. Marijnissen, presented to the 2008 European Aerosol Conference, Thessaloniki, Greece, August 24-29, 2008.

553.     Chemical characterization and source apportionment of aerosols in highly polluted urban fog and clear air in South Asia, L. Husain, B.K. Farhana, B.M. Ghauri, P.K. Hopke and S. Raja, presented to the 2008 European Aerosol Conference, Thessaloniki, Greece, August 24-29, 2008.

554.     Short Term Effects of Fine and Ultrafine Particulate Matter on Mortality in Rochester, NY, USA, S. von Klot, M. Franklin, J. Kasumba,J. Schwartz, P.K. Hopke, presented to the ISEE-ISEA 2008 Joint Conference, Pasadena, CA, October 12-16, 2008.

555.     Source Apportionment of Atmospheric Aerosols in Lahore, Pakistan. S. Raja, B.K. Farhana, L. Husain, P.K. Hopke, presented to the 27th Annual Conference of the American Association for Aerosol Research, Orlando, FL, October 20-24, 2008.

556.     Nucleation and Growth In/over a Deciduous Forest: How important are the trees? S.C. Pryor, R.J. Barthelmie, A.M. Spaulding, A. Rossner, B. Crimmins, P.K. Hopke, L. Mauldin, T. Jobson, presented to the 27th Annual Conference of the American Association for Aerosol Research, Orlando, FL, October 20-24, 2008.

557.     A Multiyear Study of Ultrafine Particle Number Size Distributions and Growth Events in Rochester, NY. J. Kasumba, D. Chalupa, M. Utell, P.K. Hopke, presented to the 27th Annual Conference of the American Association for Aerosol Research, Orlando, FL, October 20-24, 2008.

558.     Simulated Transport and Deposition of Ellipsoidal Fibers with Application to Human Breathing, K.T. Shanley, G. Ahmadi, P.K. Hopke, and Y.-S. Cheng, presented to the 27th Annual Conference of the American Association for Aerosol Research, Orlando, FL, October 20-24, 2008.

559.     Effectiveness of Air Cleaner on Reducing Indicators of Airway Inflammation in Asthmatic Children. Y. Xu, S. Raja, A.R. Ferro, P. A. Jaques, S. McMahon, Y. Qi, P.K. Hopke, C. Gressani, L.E. Wetzel, presented to the 27th Annual Conference of the American Association for Aerosol Research, Orlando, FL, October 20-24, 2008.

560      Measurement of endotoxin and aeroallergens in PM10 and settled dust in the homes and school rooms of asthmatic children. S. Raja, Y. Xu, A. R. Ferro, P.A. Jaques, P.K. Hopke, presented to the 27th Annual Conference of the American Association for Aerosol Research, Orlando, FL, October 20-24, 2008.

561.     Distribution of Aeroallergens Measured in Homes. S. Raja, Y. Xu, A.R. Ferro, P.A. Jaques, P.K. Hopke, presented to the 27th Annual Conference of the American Association for Aerosol Research, Orlando, FL, October 20-24, 2008.

562.     Measurement of SOA Precursor Compounds in the Nucleation In ForesTs (NIFTY) Campaign. A. Rossner, B. Crimmins, P.K. Hopke, S.C. Pryor, presented to the 27th Annual Conference of the American Association for Aerosol Research, Orlando, FL, October 20-24, 2008.

563.     Measurement of Particle Concentrations above a Forest and Surrounding Farmland. D. Valyou, J. Butler, E. Zito, W. Hull, J. Hoffman, P. Marzocca, S. Dhaniyala, P.K. Hopke, R. Barthelmie, S. Scott, S.C. Pryor, presented to the 27th Annual Conference of the American Association for Aerosol Research, Orlando, FL, October 20-24, 2008.

564.     Transport and Deposition of Ellipsoidal Fiber in Human Tracheobronchial Tree with a Multi-level Bifurcation Computational Model. L. Tian, G. Ahmadi, P.K. Hopke and Y.-S. Cheng, presented to the 27th Annual Conference of the American Association for Aerosol Research, Orlando, FL, October 20-24, 2008.

565.     Fiber deposition in realistic human lung bifurcation model. P.K. Hopke, Z. Wang, presented to the 27th Annual Conference of the American Association for Aerosol Research, Orlando, FL, October 20-24, 2008.

566.     Spin trapping for identification and characterization of particle-bound reactive radical species. J. Pavlovic, X. Chen, P.K. Hopke, presented to the 27th Annual Conference of the American Association for Aerosol Research, Orlando, FL, October 20-24, 2008.

567.     The Use of Potential Source Contribution Functions to Examine Potential Source Areas and Transport Pathways of Nitrate and Sulfate in UK, Y. Li, P.K. Hopke, R. Harrison, presented to the 27th Annual Conference of the American Association for Aerosol Research, Orlando, FL, October 20-24, 2008.

568.     Spatial Distribution of the Ambient Fine Aerosol in Syracuse, NY, E. McAddy, J. Ehrhardt, P.K. Hopke, T.M. Holsen, X. Wang, K. M. Zhang, M. Mitchell, presented to the 27th Annual Conference of the American Association for Aerosol Research, Orlando, FL, October 20-24, 2008.

569.     Source Apportionment of Urban Aerosol by Bilinear PMF2 from Highly-time Resolved Data: Prague Winter 2007/2008. D. Thimmaiah, M. Civis, J. Hovorka, P.K. Hopke, presented to the 27th Annual Conference of the American Association for Aerosol Research, Orlando, FL, October 20-24, 2008.

570.     Receptor Modeling of Data with Species-Dependent Time Resolution: Results from the St. Louis -- Midwest Supersite. Y. Li, P.K. Hopke, J. Turner, presented to the 27th Annual Conference of the American Association for Aerosol Research, Orlando, FL, October 20-24, 2008.

571.     An Automated Sampling System for Particle Bound Reactive Oxygen Species. L. Sun, J. Pavlovic, X. Chen, P.K. Hopke, presented to the 27th Annual Conference of the American Association for Aerosol Research, Orlando, FL, October 20-24, 2008.

572.     High Flow Rate Aerodynamic Lens System. G. Zhao, P. Zamankhan, P.K. Hopke, S. Dhaniyala, presented to the 27th Annual Conference of the American Association for Aerosol Research, Orlando, FL, October 20-24, 2008.

573.     The Nucleation Rate Experimental Data Inconsistencies. M.P. Anisimov, P.K. Hopke, presented to the 27th Annual Conference of the American Association for Aerosol Research, Orlando, FL, October 20-24, 2008.

574.     Characterization of Near-Roadway Air Pollution in Syracuse, NY. X. Wang, K.M. Zhang, J. Ehrhardt, P.K. Hopke, T.M. Holsen, M. Mitchell, presented to the 27th Annual Conference of the American Association for Aerosol Research, Orlando, FL, October 20-24, 2008.

575.     Secondary organic aerosol from alpha-pinene ozonolysis in a dynamic chamber system: density and particle bound reactive oxygen species (ROS) measurements. X. Chen and P.K. Hopke, presented to the 27th Annual Conference of the American Association for Aerosol Research, Orlando, FL, October 20-24, 2008.

576.     Advantages Of A Semiempirical Design Of The Nucleation Rate Surfaces Over Phase Equilibria Diagram. M.P. Anisimov P.K. Hopke, presented to the 27th Annual Conference of the American Association for Aerosol Research, Orlando, FL, October 20-24, 2008.

577.     Urban Air Quality in the Asian Region. P.K. Hopke, D.D. Cohen, B.A. Begum, S.K. Biswas, B. Ni, G.G. Pandit, M. Santoso, Y.-S. Chung, P. Davy, A. Markwitz, S. Waheed, N. Siddique, F.L. Santos, P.C.B. Pabroa, M.C.S. Seneviratne, W. Wimolwattanapun, S. Bunprapob, T.B. Vuong, and A. Markowicz, presented to the 27th Annual Conference of the American Association for Aerosol Research, Orlando, FL, October 20-24, 2008.

578.     Air Cleaner Effects on Improving Indoor Air Quality. Y. Xu, S. Raja, A.R. Ferro, P.A. Jaques, S. McMahon, Y. Qi, P.K. Hopke, C. Gressani, L.E. Wetzel, presented to the 27th Annual Conference of the American Association for Aerosol Research, Orlando, FL, October 20-24, 2008.

579.     Computer Design of Water Vapor Nucleation Rate Surface, L. Anisimova, M.P. Anisimov, and P.K. Hopke, presented to the Fourth International Conference on Multiscale Materials Modeling, Tallahassee, FL, October 27-31, 2008.

580.     Source Identification Of Chittagong Aerosol By Receptor Modeling, B.A. Begum, S.K. Biswas, M..Nasiruddin, A.M. Showkot Hossain, P.K. Hopke, presented to Better Air Quality (BAQ 2008), Bangkok, Thailand, November 12-14, 2008.

581.     Measurement of SOA Precursor Compounds in the Nucleation In ForesTs (NIFTY) Campaign, A. Rossner, B. Crimmins, P.K. Hopke, S.C. Pryor, presented to Fall 2008 Meeting of the American Geophysical Union, San Francisco, CA, December 15-19, 2008.

582.     Measurement of Particle Concentrations above a Forest and Surrounding Farmland, D. Valyou, J. Butler, E. Zito, W. Hull, J. Hoffman, P. Marzocca, S. Dhaniyala, P.K. Hopke, R. Barthelmie, S. Scott, S.C. Pryor, presented to Fall 2008 Meeting of the American Geophysical Union, San Francisco, CA, December 15-19, 2008.

583.     Relationships among Legacy and Emerging Contaminant Concentrations in Great Lakes Fish Between 1999 and 2005 and Evaluation of Site-specific Differences, Holsen T.M., Hopke P.K., Amos M.M., Miller K.M., Milligan M.S., Murphy E.W., Pagano J.J., Schofield J.A., presented to International Association for Great Lakes Research, 52^nd Annual Conference on Great Lakes Research, Toledo, OH, May 18-22, 2009.

Dr. Hopke has directed 42 Master of Science and 29 Doctor of Philosophy theses. He has authored and coauthored numerous technical reports.