Aerodyne Research, Inc.
Center for Aerosol and Cloud Chemistry

 

The Center for Aerosol and Cloud Chemistry at ARI performs laboratory and field experiments to understand heterogeneous processes associated with aerosol and cloud particles in the atmosphere. This includes processes that both directly determine the distribution of both size and chemical composition of aerosols as well as gas-particle interactions that impact gas phase species. Extensive laboratory studies have investigated the fundamental kinetics and thermodynamics of gas/liquid interactions. Current programs are developing advanced field measurement techniques for sampling ambient atmospheric particles from ground based and airborne platforms. Research and development activities are supported by government agencies, private companies and private sector research consortoria. Government sponsors include: the National Science Foundation, the National Aeronautics and Space Administration, the Department of Energy, the Environmental Protection Agency, and the Office of Naval Research. Private sector sponsors include: the Electric Power Research Institute, the Coordinating Research Council, Air Products, Inc,. the Alternative Fluorocarbon Environmental Acceptability Study and the Chemical Manufacturers Association.

RESEARCH AND DEVELOPMENT AREAS

Cloud and Aerosol Chemistry and Physics
Aerosol Nucleation and Growth
Gas-Particle Processing

Acid Rain/Deposition Chemistry
Marine Boundary Layer Chemistry
Stratospheric Ozone Depletion

PM2.5 Aerosol Monitoring
Urban and Regional Air Pollution
Soot Emission Characterization

Aerosol Sampling - Chemical Composition and Size
Kinetic Modeling

FACILITIES

Droplet Train Heterogeneous Flow Reactors
Bubble Column Heterogeneous Flow Reactors
Atmospheric Aerosol Analyzers
Aerosol Production/Characterization
High and Low Pressure Gas Phase Flow Reactors
Tunable Laser Trace Species Detection
Chemical Ionization Mass Spectrometer detection

For more information contact:

Dr. Douglas R. Worsnop Vice President Director, Center for Aerosol and Cloud Chemistry Phone: 978-663-9500, ext. 225 Fax: 978-663-4918 e-mail: worsnop@aerodyne.com

Mrs. Cameron Martin Executive Assistant, Marketing Director Center for Aerosol and Cloud Chemistry Phone: 978-663-9500, ext. 207 Fax: 978-663-4918 e-mail: cmartin@aerodyne.com

AEROSOL and CLOUD CHEMISTRY PERSONNEL

Douglas R. Worsnop, Ph.D., Physical Chemistry, Harvard University

Dr. Worsnop is a leading expert in the heterogeneous chemistry of atmospheric compounds. He has pioneered the development of laboratory techniques for measuring the chemical interactions between atmospheric trace gases and water droplets. His expertise extends to the mechanisms of the formation of polar stratospheric clouds, and to measurements of the chemical composition of atmospheric aerosols.   Dr. Worsnop is a recipient of the 2004 Benjamin Y. H. Liu Award for his achievements in atmospheric composition measurement with the Aerodyne mass spectrometer system (AMS).

William A. Brooks IV, B.S., Electronics Engineering, Wentworth Institute of Technology

Mr. Brooks joined Aerodyne Research Incorporated as an Instrumentation Engineer in 2006.  He has extensive experience with analog and digital electronics, and for his senior design project at Wentworth, he developed a fully automated robotic waitress.  His main responsibilities at Aerodyne include the construction of the Aerosol Mass Spectrometer (AMS) system as well as the design of various electrical and mechanical systems.

Manjula R. Canagaratna, Ph.D., Physical Chemistry, University of Minnesota

Dr. Canagaratna joined Aerodyne Research Inc. (ARI) as a Senior Scientist in 2000. Her current and past research interests include atmospheric physics and chemistry, advanced instrumentation for aerosol and gas detection, chemical kinetics, and molecular spectroscopy. 

John T. Jayne, Ph.D., Physical Chemistry, Boston College

Dr. Jayne's area of research is in the heterogeneous kinetics and mechanisms of atmospheric trace gases with water droplets and aerosols. He also is experienced with fast flow kinetic measurements of gas phase reactions using turbulent flow reactors. Dr. Jayne is a recipient of the 2004 Benjamin Y. H. Liu Award for his achievements in atmospheric composition measurement with the Aerodyne mass spectrometer system (AMS).

Joel R. Kimmel, Ph.D., Physical Chemistry, Stanford University

Dr. Kimmel joined Aerodyne in 2006.  His primary research interest is the design and characterization of improved instrumentation for aersol mass spectrometry. He is currently developing data acquisition software for the Time-of-Flight Aerosol Mass Spectrometer (ToF-AMS).

Jesse H. Kroll, Ph.D., Physical Chemistry, Harvard University

Dr. Kroll joined Aerodyne as a Senior Scientist in 2006.  His research interests center on the atmospheric chemistry of organic species, particularly the gas- and particle-phase reactions involved in the formation and evolution of organic aerosols.  His research experience includes chamber studies of secondary organic aerosol (SOA) formation and flow-tube studies of gas-phase chemical reactions.

David K. Lewis, Ph.D., Physical Chemistry, Cornell University

Dr. Lewis has extensive experience in gas phase chemical kinetics, modeling kinetic processes, ultrahigh resolution infrared spectroscopy and instrument design for chemical analyses. His work at the Center is focused on the sampling of aerosol particles in ambient air and the characterization of those particles by optical methods including absorption and emission spectroscopy and laser light scattering. Dr. Lewis is also the Margaret W. Kelly Professor of Chemistry at Connecticut College in New London, CT., where he teaches courses in physical and analytical chemistry and instrumental methods of analysis and directs a research program in high temperature gas phase kinetics.

Ms. Sueper joined Aerodyne Research Incorporated part time as a Software Engineer in 2006. She coordinates, maintains, and provides support for the Squirrel program, a tool built in Igor to analyze Time of Flight Aerosol Mass Spectrometry (ToF-AMS) data sets. She has over 15 years of experience investigating atmospheric gas and
particulate measurements.

Leah R. Williams, Ph.D., Physical Chemistry, Massachusetts Institute of Technology

Dr. Williams' research interests include atmospheric chemistry and laser spectroscopy.  She has extensive experience in the laboratory measurement of heterogeneous reaction rates on surfaces representative of atmospheric particulate matter.  Recent work also includes the development of new technology for the Aerodyne aerosol mass spectrometer.

Paul Davidovits, Ph.D., Electrical Engineering, Yale University

Professor Davidovits is in the Department of Chemistry at Boston College. His research group collaborates with the CACC at ARI in investigating of the kinetics heterogeneous gas/liquid interactions using droplets, bubbles and aerosol particles.

AFFILIATED PERSONNEL

Charles E. Kolb, Ph.D., Physical Chemistry, Princeton University

Dr. Kolb has extensive experience in atmospheric and environmental chemistry, including gas-phase and heterogeneous (gas-surface) chemical kinetics of atmospheric species. He has also led ARI's efforts in the development of advanced spectroscopic sensors for atmospheric trace gas and soil contaminant detection, and the measurement of concentrations and emissions and deposition fluxes of atmospheric trace species.

Richard C. Miake-Lye, Ph.D, Applied Physics, Stanford University

Dr. Miake-Lye's recent research focuses on understanding the physical and chemical evolution of exhaust flowing from propulsion systems. Both sub-scale physical models and numerical models have been developed to assess problems related to system performance, engine emissions characterization, and contrail formation. A tunable diode measurement technique for trace gas emissions has been developed and is being applied in support of the emissions modeling effort. In addition, a new Aerodyne measurement technology, the Aerosol Mass Spectrometer, is being applied to characterizing the particle emissions from aircraft engines. One major thrust of these efforts is to understand the effects of emissions from gas-turbine engines powering the commercial aviation fleet, both existing and planned, on the global atmosphere and as a contributor to regional air quality.  In addition to these research efforts, Dr. Miake-Lye serves on the SAE E-31 committee, Aircraft Engine Emissions Measurement, as its current chair.  This committee writes Aerospace Information Reports and Aerospace Recommended Practices specifying measurement procedures for characterizing emissions from aircraft engines.

Mark S. Zahniser, Ph.D., Physical Chemistry, University of Pittsburgh

Dr. Zahniser directs environmental research at ARI. He has expertise in reaction kinetics and spectroscopy of gas phase molecular species relevant to the atmosphere. He has extensive experience in laboratory rate constant measurements for reactions relevant to upper atmospheric ozone depletion and in the application of infrared tunable laser detection of atmospheric trace gases and measurements of greenhouse gas fluxes.

Andrew Freedman, Ph.D., Physical Chemistry, University of California, Berkeley

Dr. Freedman serves as Director of the Center for Sensor Systems and Technology. His work has focused on a broad range of studies which encompass interfacial phenomena relevant to environmental chemistry such as halocarbon interactions with stratospheric alumina particulate and atmospheric corrosion.

SELECTED PUBLICATIONS

"The time evolution of aerosol composition over the Mexico City plateau," L. I. Kleinman, S. R. Springston, P. H. Daum, Y.-N. Lee, L. J. Nunnermacker, G. I. Senum, J. Wang, J. Weinstein-Lloyd, M. L. Alexander, J. Hubbe, J. Ortega, M. R. Canagaratna, J. Jayne, Atmos. Chem. Phys. 8, (6), 1559-1575, 2008.

"Commercial Aircraft Engine Emissions Characterization of in-Use Aircraft at Hartsfield-Jackson Atlanta International Airport," S. C. Herndon, J. T. Jayne, P. Lobo, T. B. Onasch, G. Fleming, D. E. Hagen, P. D. Whitefield, R. C. Miake-Lye, Environ. Sci. Technol. 42, (6), 1877-1883, 2008.

"Light scattering and absorption by fractal-like carbonaceous chain aggregates: comparison of theories and experiment," R. K. Chakrabarty, H. Moosmüller, W. P. Arnott, M. A. Garro, J. G. Slowik, E. S. Cross, J.-H. Han, P. Davidovits, T. B. Onasch,  D. R. Worsnop, Applied Optics 46 (28), 6990-7006, 2007

"Effect of NOx level on secondary organic aerosol (SOA) formation from the photooxidation of terpenes," N. L. Ng P. S. Chhabra1, A. W. H. Chan, J. D. Surratt, J. H. Kroll, A. J. Kwan, D. C. McCabe, P. O. Wennberg, A. Sorooshian1, S. M. Murphy, N. F. Dalleska, R. C. Flagan, and J. H. Seinfeld, Atmos. Chem. Phys. 7, (19), 5159–5174, 2007.

"Technical Note: Description and Use of the New Jump Mass Spectrum Mode of Operation for the Aerodyne Quadrupole Aerosol Mass Spectrometers (Q-AMS)," J. Crosier, J. L. Jimenez, J. D. Allan, K. N. Bower, P. I. Williams, M. R. Alfarra, M. R. Canagaratna, J. T. Jayne, D. R. Worsnop, and H. Coe, Aerosol Sci. Tech. 41, (9), 865-872, 2007.

"Demonstration of a VUV lamp photoionization source for improved organic speciation in an aerosol mass spectrometer," M. J. Northway, J. T. Jayne, D. W. Toohey, M. R. Canagaratna, A. Trimborn, K.-I. Akiyama, A. Shimono, J. L. Jimenez, P. F. DeCarlo, K. R. Wilson,  D. R. Worsnop, Aerosol. Sci. Tech. 41, (9), 828-839, 2007.

"Nucleation of bulk phases in the HCl/H₂O system," B. F. Henson, K. R. Wilson, J.  M. Robinson, C. A. Nobel, J. L. Casson, L. F. Voss, D. R. Worsnop, J. Phys. Chem. A 11, (35), 8635-8641, 2007.

"Measurements of morphology changes of fractal soot particles using coating and denuding experiments: Implications for optical absorption and atmospheric lifetime," J. G. Slowik, E. S. Cross, J-H. Han, J. Kolucki, P. Davidovits, L. R. Williams, T. B. Onasch, J. T. Jayne, C. E.  Kolb, D. R. Worsnop,  Aerosol. Sci. Tech. 41, (8), 734-750, 2007.

"Transmission efficiency of an aerodynamic focusing lens system: Comparison of model calculations and laboratory measurements for the Aerodyne Aerosol Mass Spectrometer," P. S. K.  Liu, R. Deng, K. A. Smith, L. R. Williams, J. T. Jayne, M. R. Canagaratna, K. Moore, T. B. Onasch,  D. R. Worsnop, T. Deshler, Aerosol. Sci. Tech. 41, (8), 721-733, 2007.

"Ubiquity and dominance of oxygenated species in organic aerosols in anthropogenically-influenced Northern Hemisphere midlatitudes", Q. Zhang, J. L. Jimenez, M. R. Canagaratna, J. D. Allan, H. Coe, I. Ulbrich, M. R. Alfarra, A. Takami, A. M. Middlebrook, Y. L. Sun, K. Dzepina, E. Dunlea, K. Docherty, P. F. DeCarlo, D. Salcedo, T. Onasch, J. T. Jayne, T. Miyoshi, A. Shimono, S. Hatakeyama, N. Takegawa, Y. Kondo, J. Schneider, F. Drewnick, S. Borrmann, S. Weimer, K. Demerjian, P. Williams, K. Bower, R. Bahreini, L. Cottrell, R. J. Griffin, J. Rautiainen, J. Y. Sun, Y. M. Zhang, D. R. Worsnop, Geophys. Res. Lett.,  34, L13801. doi:10.1029/2007GL029979, 2007.

"Transport of forest fire emissions from Alaska and the Yukon Territory to Nova Scotia during summer 2004," T.J. Duck, B.J. Firanski, D.B. Millet, A.H. Goldstein, J. Allan, R. Holzinger, D.R. Worsnop,  A.B. White, A. Stohl, C.S. Dickinson, A. van Donkelaar, JGR, 112, D10S44, doi:10.1029/2006JD007716, 2007.

"A case study of urban particle acidity and its influence on secondary organic aerosol," Q. Zhang, J.L. Jimenez, D.R. Worsnop, M. Canagaratna, Environ. Sci. Technol., 41, 3213-3219, 2007.

"Evaluation of nitrogen dioxide chemiluminescence monitors in a polluted urban environment," E. J. Dunlea, S. C. Herndon, D. D. Nelson, R. M. Volkamer, F. San Martini, P. M. Sheehy, M. S. Zahniser, J. H. Shorter, J. C. Wormhoudt, B. K. Lamb, E. J. Allwine, J. S. Gaffney, N. A. Marley, M. Grutter, C. Marquez, S. Blanco, B. Cardenas, A. Retama, C. R. Ramos Villegas, C. E. Kolb, L. T. Molina1, M. J. Molina,  Atmos. Chem. Phys., 7, 2691–2704, 2007.

"Regional variation of organic functional groups in aerosol particles on four U.S. east coast platforms during the International Consortium for Atmospheric Research on Transport and Transformation 2004 campaign," S. Gilardoni, L. M. Russell, A. Sorooshian, R. C. Flagan, J. H. Seinfeld, T. S. Bates, P. K. Quinn, J. D. Allan, B. Williams, A. H. Goldstein, T. B. Onasch, D. R. Worsnop, JGR, 112, D10S27, doi:10.1029/2006JD007737, 2007.

"Aircraft observations of aerosol composition and ageing in New England and Mid-Atlantic States during the summer2002 New England Air Quality Study field campaign," L.I. Kleinman, P.H. Daum, Y.-N. Lee, G.I. Senum, S.R. Springston, J. Wang, C. Berkowitz, J. Hubbe, R.A. Zaveri, F.J. Brechtel, J. Jayne, T.B. Onasch, D. Worsnop,  JGR, 112, D09310, doi:10.1029/2006JD007786, 2007.

"Detection of particle-phase polycyclic aromatic hydrocarbons in Mexico City using an aerosol mass spectrometer," K. Dzepina, J. Arey, L.C. Marr, D.R. Worsnop, D. Salcedo, Q. Zhang, T.B. Onasch, L.T. Molina, M.J. Molina, J.L. Jimenez, Int. J. Mass Spectrom., 263, (2-3) 152-170, 2007.

"Emission, oxidation, and secondary organic aerosol formation ofvolatile organic compounds as observed at Chebogue Point, Nova Scotia," R. Holzinger, D.B. Millet, B. Williams, A. Lee, N. Kreisberg, S.V. Hering, J. Jinenez, J.D. Allan, D.R. Worsnop, A.H. Goldstein, JGR, 112, D10S24, doi:10.1029/2006JD007559, 2007.

"Laboratory and Ambient Particle Density Determinations using Light Scattering in Conjunction with Aerosol Mass Spectrometry," E.S. Cross, J.G. Slowik, P. Davidovits, J.D. Allan, D.R. Worsnop, J.T. Jayne, D.K. Lewis, M. Canagaratna, T.B. Onasch, Aerosol Sci. Tech., 41, (4) 343-359, 2007.

"An Inter-Comparison of Instruments Measuring Black Carbon Content of Soot Particles," J.G. Slowik, E.S. Cross, J-H. Han, P. Davidovits, T.B. Onasch, J.T. Jayne, L.R. Williams, M.R. Canagaratna, D.R. Worsnop, R.K. Chakrabarty, H. Moosmüller, W.P. Arnott, J.P. "Schwarz, R-S. Gao, D.W. Fahey, G.L. Kok, A. Petzold, Aerosol Sci. Tech., 41, (3), 295-314, 2007.

"Chemical speciation of organic aerosol during the International Consortium for Atmospheric Research on Transport and Transformation 2004: Results from in situ measurements," B.J. Williams, A.H. Goldstein, D.B. Millet, R. Holzinger, N.M. Kreisberg, S.V. Hering, A.B. White, D.R. Worsnop, J.D. Allan, J.L. Jimenez, JGR, 112, D10S26, doi:10.1029/2006JD007601, 2007.

"A Novel Method for Estimating Light-Scattering Properties of Soot Aerosols Using a Modified Single-Particle Soot Photometer," R.S. Gao, J.P. Schwarz, K.K.Kelly, D.W. Fahey, L.A. Watts, T.L. Thompson, J.R. Spackman, J.G. Slowik, E.S. Cross, J.-H. Han, P. Davidovits, T.B. Onasch, D.R. Worsnop, Aerosol. Sci. Tech., 41, (2), 125-135, 2007.

"Chemical and Microphysical Characterization of Ambient Aerosols with the Aerodyne Aerosol Mass Spectrometer," M.R. Canagaratna, J.T. Jayne, J.L. Jimenez, J.D. Allan, M.R. Alfarra, Q. Zhang, T.B. Onasch, F. Drewnick, H. Coe, A. Middlebrook, A. Delia, L.R. Williams, A.M. Trimborn, M.J. Northway, P.F. DeCarlo, C.E. Kolb, P. Davidovits, D.R. Worsnop, Mass. Spec. Rev. 26, 185-222, 2007.

"Chemical characteristics of North American surface layer outflow: Insights from Chebogue Point, Nova Scotia," D.B. Millet, A.H. Goldstein, R. Holzinger, B.J. Williams, J.D. Allan, J.L. Jimenez, D.R. Worsnop, J.M. Roberts, A.B. White, R.C. Hudman, I.T. Bertschi, A. Stohl, JGR, 111, D23S53, doi:10.1029/2006JD007287, 2006.

"Technical Note: Use of a beam width probe in an Aerosol Mass Spectrometer to monitor particle collection efficiency in the field," D. Salcedo, T. B. Onasch, M. R. Canagaratna, K. Dzepina, J. A. Huffman, J. T. Jayne, D. R. Worsnop, C. E. Kolb, S.Weimer, F. Drewnick, J. D. Allan, A. E. Delia, and J. L. Jimenez, Atmos. Chem. Phys., 7, 549-556, 2007.

"Distribution, magnitudes, reactivities, ratios and diurnal patterns of volatile organic compounds in the Valley of Mexico during the MCMA 2002 & 2003 field campaigns," E. Velasco1, B. Lamb, H. Westberg, E. Allwine, G. Sosa, J. L. Arriaga-Colina, B. T. Jobson, M. L. Alexander, P. Prazeller, W. B. Knighton, T. M. Rogers, M. Grutter, S. C. Herndon, C. E. Kolb, M. Zavala, B. de Foy, R. Volkamer, L. T. Molina, and M. J. Molina, Atmos. Chem. Phys., 7, 329-353, 2007.

"Oxygenated and water-soluble organic aerosols in Tokyo," Y. Kondo,  Y. Miyazaki, N.Takegawa, T. Miyakawa, R.J. Weber, J.L. Jimenez, Q. Zhang, D.R. Worsnop,  JGR, 112, D1, D01203 doi:10.1029/2006JD007056,  2007.

"Impacts of sources and aging on submicrometer aerosol properties in the marine boundary layer across the Gulf of Maine," P.K. Quinn, T.S. Bates, D. Coffman, T.B. Onasch, D. Worsnop, T. Baynard, J.A. DeGouw, P.D. Goldan, W.C. Kuster, E. Williams, J.M. Roberts, B. Lerner, A. Stohl, Aa. Petterssen, E.R. Lovejoy, JGR, 111, D23S36, doi:10.1029/2006JD007582, 2006.

"Field-deployable, high-resolution, time-of-flight aerosol mass spectrometer," P.F. DeCarlo, J.R. Kimmel, A. Trimborn, M.J. Northway, J.T. Jayne, A.C. Aiken, M. Bonin, K. Fuhrer, T. Horvath, K.F. Docherty, D.R. Worsnop, J.L. Jimenez, Anal. Chem., 78, 8281-8289, 2006.

"Characterization of the aerosol over the sub-artic north east Pacific Ocean," L. Phinney, W.R. Leaitch, U. Lohmann, H. Boudries, D.R. Worsnop, J.T. Jayne, D. Toom-Sauntry, M. Wadleigh, S. Sharma, N. Shantz, Deep-Sea Res. II, 53, 2410-2433, 2006.

"A mass spectrometric study of secondary organic aerosols formed from the photooxidation of anthropogenic and biogenis precursors in a reaction chamber," M.R. Alfarra, D. Paulsen, M. Gysel, A.A. Garforth, J. Dommen, A.S.H. Prévôt, D.R. Worsnop, U. Baltensperger, H. Coe, Atmos. Chem. Phys., 6, 5279-5293, 2006.

"The relative importance of competing pathways for the formation of high-molecular-weight peroxides in the ozonolysis of organic aerosol particles," M. Mochida, Y. Katrib, J.T. Jayne, D.R. Worsnop, S.T. Martin, Atmos. Chem. Phys., 6, 4851-4866, 2006.

"Implementation of a Markov Chain Monte Carlo method to inorganic aerosol modeling of observation from the MCMA-2003 campaign - Part I: Model description and application to the La Merced site," F.M. San Martini, E.J. Dunlea, M. Grutter, T.B. Onasch, J.T. Jayne, M.R. Canagaratna, D.R. Worsnop, C.E. Kolb, J.H. Shorter, S.C. Herndon, M.S. Zahniser,  J.M. Ortega,  G.J. McRae, L.T. Molina, M.J. Molina, Atmos. Chem. Phys., 6, 4867-4888, 2006.

"Implementation of a Markov Chain Monte Carlo method to inorganic aerosol modeling of observation from the MCMA-2003 campaign - Part II: Model application to the CENICA, Pedregal and Santa Ana sites," F.M. San Martini, E.J. Dunlea, R. Volkamer, T.B. Onasch, J.T. Jayne, M.R. Canagaratna, D.R. Worsnop, C.E. Kolb, J.H. Shorter, S.C. Herndon, M.S. Zahniser, D. Salcedo, K. Dzepina, J.L. Jimenez, J.M. Ortega, K.S. Johnson, G.J. McRae, L.T. Molina, M.J. Molina, Atmos. Chem. Phys., 6, 4889-4904, 2006.

"Secondary organic aerosol formation from anthropogenic aie pollution: Rapid and higher than expected," R. Volkamer, J.L. Jimenez, F. San Martini, K. Dzepina, Q. Zhang, D. Salcedo, L.T. Molina, D.R. Worsnop, M.J. Molina, Geophys. Res. Lett., 33, L17811, doi:10.1029/2006GL026899, 2006.

"Size-selective nonrefractory ambient aerosol measurements during the Particulate Matter Technology Assessment and Characterization Study - New York 2004 Winter Intensive in New York City," S. Weimer, F. Drewnick, O. Hogrefe, J.J. Schwab, K. Rhoads, D. Orsini, M. Canagaratna, D.R. Worsnop, K.L. Demerjian, JGR, 111, D18305, doi: 10.1029/2006JD007215, 2006.

"Partitioning of HNO₃ and particulate nitrate over Tokyo: Effect of vertical mixing," Y. Morino, Y. Kondo, N. Takegawa, Y. Miyazaki, K. Kita, Y. Komazaki, M. Fukuda, T. Miyakawa, N. Moteki, D.R. Worsnop, JGR, 111, D15215, doi:10.1029/2005JD006887, 2006.

"Air emission inventories in North America: A critical assessment," C.A. Miller, G. Hidy, J. Hales, C.E. Kolb, A.S. Werner, B. Haneke, D. Parrish, H.C. Frey, L. Rojas-Bracho, M. Deslauriers, B. Pennell, J.D. Mobley, J. Air & Waste Manage. Assoc., 56, 1115-1129, 2006.

"On-road measurements of volatile organic compounds in the Mexico City metropolitan area using proton transfer reaction mass spectrometry," T.M. Rogers, E.P. Grimsrud, S.C. Herndon, J.T. Jayne, D.E. Kolb, E. Allwine, H. Westberg, B.K. Lamb, M. Zavala, L.T. Molina, M.J. Molina, W.B. Knighton, Int. J. Mass spectrom., 252, 26-37, 2006.

"Heterogeneous uptake of 8-2 fluorotelomer alcohol on liquid water and 1-octanol droplets," Y. Li, K.L. Demerjian, L.R. William, D.R. Worsnop, C.E. Kolb, J. Phys. Chem. A, 110, 6814-6820, 2006.

"Hydrocarbon emissions from in-use commercial aircraft during airport operations," S.C. Herdon, T. Rogers, E.J. Dunlea, J.T. Jayne, R. Miake-Lye, B. Knighton, Environ. Sci. Tech., 40 (14) 4416-4413, 2006.

"Seasonal and diurnal variations of submicron organic aerosol in Tokyo observed using the Aerodyne aerosol mass spectrometer", N. Takegawa, T. Miyakawa, Y. Kondo, J.L. Jimenez, Q. Zhang, D.R. Worsnop, M. Fukuda, JGR, 111, D11206, doi:10.1029/2005JD006515, 2006.

"Mass accommodation and chemical reactions at gas-liquid interfaces," P. Davidovits, C.E. Kolb, L.R. Williams, J.T. Jayne, D.R. Worsnop, Chem. Rev., 106, 1323-1354, 2006.

"Identification and characterization of inland ship plumes over Vancouver, BC," G. Lu, J.R. Brook, M. Rami Alfarra, K. Anlauf, W.R. Leaitch, S. Sharma, D. Wang, D.R. Worsnop, L. Phinney, Atmos. Environ. 40, 2767-2782, 2006.

"Hygroscopicity of particles at two rural, urban influenced sites during Pacific 2001: Comparison with estimates of water uptake from particle composition," Y. Aklilu, M. Mozurkewich, A.J. Prenni, S.M. Kreidenweis, M.R. Alfarra, J.D. Allan, K. Anlauf, J. Brook, W.R. Leaitch, S. Sharma, H. Boudries, D.R. Worsnop, Atmos. Environ., 40, 2650-2661, 2006.

"Characterization of ambient aerosols in Mexico City during the MCMA-2003 campaign with Aerosol Mass Spectrometry: results from the CENICA Supersite," D. Salcedo, T.B. Onasch, K. Dzepina, M.R. Canagaratna, Q. Zhang, J.A. Huffman, P.F. DeCarlo, J.T. Jayne, P. Mortimer, D.R. Worsnop, C.E. Kolb, K.S. Johnson, B. Zuberi, L.C. Marr, R. Volkamer, L.T. Molina, M.J. Molina, B. Cardenas, R.M. Bernabe, C. Márquez, J.S. Gaffney, N.A. Marley, A. Laskin, V. Shutthanandan, Y. Xie, W. Brune, R. Lesher, T. Shirley, J.L. Jimenez, Atmos. Chem. Phys., 6, 925-946, 2006.

"Size and composition measurements of background aerosol and new particle growth in a Finnish Forest during QUEST 2 using an Aerodyne Aerosol Mass Spectrometer," J.D. Allan, M.R. Alfarra, K.N. Bower, H. Coe, J.T. Jayne, D.R. Worsnop, P.P. Aalto, M. Kulmala, T. Hyötyläinen, F. Cavalli, A. Laaksonen, Atmos. Chem. Phys., 6, 315-327, 2006.

"Ozonolysis of mixed oleic-acid/stearic-acid particles: Reaction kinetics and chemical morphology," Y. Katrib, G. Biskos, P.R. Buseck, P. Davidovits, J.T. Jayne, M. Mochida, M.E. Wise, D.R. Worsnop, S.T. Martin, J. Phys. Chem. A, 109, 10910-10919, 2005.

"Hydrocarbon-like and oxygenated organic aerosols in Pittsburgh: Insights into sources and processes of organic aerosols," Q. Zhang, D.R. Worsnop, M.R. Canagaratna, J.L. Jimenez, Atmos. Chem. Phys., 3, 3289-3311, 2005.

"Design, modeling, optimization, and experimental tests of a particle beam width probe for the Aerodyne Aerosol Mass Spectrometer," J.A. Huffman, J.T. Jayne, F. Drewnick, A.C. Aiken, T. Onasch, D.R. Worsnop, J.L. Jimenez, Aerosol. Sci. Tech., 39, 1143-1163, 2005.

"Impact of particulate organic matter on the relative humidity dependence of light scattering: A simplified parameterization," P.K. Quinn, T.S. Bates, T. Baynard, A.D. Clarke, T.B. Onasch, W. Wang, M.J. Rood, E. Andrews, J. Allan, C.M. Carrico, D. Coffman, D. Worsnop, JGR, 32, L22809, doi:10.1029/2005GL024322, 2005.

"Vehicle fleet emissions of black carbon, polycyclic aromatic hydrocarbons, and other pollutants measured by a mobile laboratory in Mexico City," M. Jieng, L.C. Marr, E.J. Dunlea, S.C. Herndon, J.T. Jayne, C.E. Kolb, W.B. Knighton, T.M. Rogers, M. Zavala, L.T. Molina, M.J. Molina, Atmos. Chem. Phys., 5, 3377-3387, 2005.

"Characterization of an Aerodyne aerosol mass spectrometer (AMS): Intercompanison with other aerosol indtruments," N. Takegawa, Y. Miyazaki, Y. Kondo, Y. Komazaki,  T. Miyakawa, J.L. Jimenez, J.T. Jayne, D.R. Worsnop, J.D. Allan, R.J. Weber, Aerosol. Sci. Tech., 39, (8), 760-770, 2005.

"Budget of organic carbon in a polluted atmosphere: Results from the New England Air Quality Study in 2002," J.A. deGouw, A.M. Middlebrook, C. Warneke, P.D. Goldan, W.C. Kuster, J.M. Roberts, F.C. Fehsenfeld, D.R. Worsnop, M.R. Canagaratna, A.A.P. Pszenny, W.C. Keene, M. Marchewka, S.B. Bertman, T.S. Bates, J. Geophys. Res., 110, D16305, doi:10.1029/2004JD005623, 2005.

"A new time-of-flight aerosol mass spectrometer (TOF-AMS) - Instrument description and first field deployment," F. Drewnick, S.S. Hings, P. DeCarlo, J.T. Jayne, M. Gonin, K. Fuhrer, S. Weimer, J.L. Jimenez, K.L. Demerjian, S. Borrmann, D.R. Worsnop, Aerosol Sci. Tech.,  39, 637-658, 2005.

"Particulate emissions from in-use commercial aircraft," S.C. Herndon, T.B. Onasch, B.P Frank, L.C. Marr, J.T. Jayne, M.R. Canagaratna, J. Grygas, T. Lanni, B.E. Anderson, D. Worsnop, R.C. Miake-Lye, Aerosol Sci. Tech., 39, 799-809, 2005.

"Characterization of urban pollutant emission fluxes and ambient concentration distributions using a mobile laboratory with rapid response instrumentation," S.C. Herndon, J.T. Jayne, M.S. Zahniser, D.R. Worsnop, B. Knighton, E. Alwine, B.K. Lamb, M. Zavala, D.D. Nelson, J.B. McManus, J.H. Shorter, M.R. Canagaratna, T.B. Onasch, C.E. Kolb, Faraday Discuss., 130, 327-339, 2005.

Comment on "Mass accommodation coefficient of water: Molecular dynamics simulation and revised analysis of droplet train/flow reactor experiment," P. Davidovits, D.R. Worsnop, L.R. Williams, C.E. Kolb, M. Gershenzon, J. Phys. Chem. B, 109, 14742-14746, 2005.

"Measurements of secondary organic aerosol from oxidation of cycloalkenes, terpenes, and m-xylene using an Aerodyne Aerosol Mass Spectrometer," R. Bahreini, M.D. Keywood, N.L. Ng, V. Varutbangkul, S. Gao, R.C. Flagan, J.H. Seinfeld, D.R. Worsnop, J.L. Jimenez, Environ. Sci. Technol., 39, 5674-5688, 2005.

"In situ concentration of semi-volatile aerosol using water-condensation technology," A. Khlystov, Q. Zhang, J.L. Jimenez, C. Stanier, S.N. Pandis, M.R. Canagaratna, P. Fine, C. Misra, C. Sioutas, Aerosol Science, 36, 866-880, 2005.

"Deconvolution of quantification of hydrocarbon-like and oxygenated organic aerosols based on aerosol mass spectrometry," Q. Zhang, M.R.Alfarra, D.R. Worsnop, J.D. Allen, H. Coe, M.R. Canagaratna, J.L. Jimenez, Environ. Sci. Technol. 39, 4938-4952, 2005.

"Uptake of Organic Gas Phase Species by 1-Methylnaphthalene," H.Z. Zhang, P. Davidovits, L.R. Williams, C.E. Kolb, D.R. Worsnop, J. Phys. Chem A, 109, 3941-3949, 2005.

"Density Changes of Aerosol Particles as a Result of Chemical Reaction," Y. Katrib, S.T. Martin, Y. Rudich, P. Davidovits, J.T. Jayne, D.R. Worsnop, Atmos. Chem. Phys. 5, 275-291, 2005.

“Air Quality in Selected Megacities,” L.T. Molina, M.J. Molina, R.S. Slott, C.E. Kolb, P. K. Gbor, F. Meng, R.B. Singh, O. Galvez, J.J. Sloan, W.P. Anderson, X. Tang, M.Hu, S. Xie, M. Shao, T. Zhu, Y.H. Zhang, B.R. Gurjar, P.E. Artaxo, P. Oyola, E. Gramsch, D. Hidalgo, and A.W. Gertler, J. Air Waste Manage. Assoc. 55, Critical Review On-line Version, 2004.

"Haze Aerosols in the Atmosphere of Early Earth: Manna from Heaven," M.G. Trainer, A.A. Pavlov, D.B. Curtis, C.P. McKay, D.R. Worsnop, A.E. Delia, D.W. Toohey, O.B. Toon, M.A. Tolbert, Astrobiology, 4, 409-419, 2004.

"Time- and Size-Resolved Chemical Composition of Submicron Particles in Pittsburgh: Implications for Aerosol Sources and Processes," Q. Zhang, M.R. Canagaratna, J.T. Jayne, D.R. Worsnop, JGR, 110 D07S09-D07S27, doi:10.1029/2004jD004649, 2005.

"Particle Morphology and Density Characterization by Combined Mobility and Aerodynamic Diameter Measurements.  Part 1: Theory," P.F. DeCarlo, J.G. Slowik, D.R. Worsnop, P. Davidovits, J.L. Jimenez, Aerosol Sci. and Tech., 38, 1185-1205, doi:10.1080/027868290903907, 2004.

"Particle Morphology and Density Characterization by Combined Mobility and Aerodynamic Diameter Measurements.  Part 2: Application to Combustion-Generated Soot Aerosols as a Function of Fuel Equivalence Ratio," J.G. Slowik, K. Stainken, P. Davidovits, L.R. Williams, J.T. Jayne, C.E. Kolb, D.R. Worsnop, Y. Rudich, P.F. DeCarlo, J.L. Jimenez, Aerosol Sci. and Tech., 38, 1206-1222, doi:10.1080/027868290903916, 2004.

"Mass Accommodation Coefficient of Water Vapor on Liquid Water," P. Davidovits, D.R. Worsnop, J.T. Jayne, C.E. Kolb, P. Winkler, A. Vrtala, P.E. Wagner, M. Kulmala, K.E.J. Lehtinen, T. Vesala, M. Mozurkewich, Geophys. Res. Lett., 31, L2211, doi:10.1029/2004GL020835, 2004.

"Mobile Laboratory with Rapid Response Instruments for Real-Time Measurements of Urban and Regional Trace Gas and Particulate Distributions and Emission Source Characteristics," C.E. Kolb, S.C. Herndon, J.B. McManus, J.H. Shorter, M.S. Zahniser, D.D. Nelson, J.T. Jayne, M.R. Canagaratna, D.R. Worsnop, Environ. Sci. Technol., 38, 5694-5703, 2004.

"Experimental Isotherms of HCl on H₂O Ice Under Stratospheric Conditions: Connections Between Bulk and Interfacial Thermodynamics,"B.F. Hanson, K.R. Wilson, J.M. Robinson, C.A. Noble, H.L. Casson, D.R. Worsnop, J. Chem Phys., 121, 8486-8499, 2004.

"Characterization of Urban and Rural Organic Particulate in the Lower Fraser Valley Using Two Aerodyne Aerosol Mass Spectrometers," M.R. Alfarra, H. Coe, J.D. Allan, K.N. Bower, H. Boudries, M.R. Canagratna, J.L. Jimenez, J.T. Jayne, A.A. Garforth, S-M Li, D.R. Worsnop, Atmospheric Environment, 38, 5745-5758, 2004.

"Spatial and Temporal Variability of High Resolution Reduced Nitrogen Concentrations in the Fraser Valley," S.C. Pryor, K. Anlauf, H. Boudried, K. Hayden, C.L. Schiller, A. Wiebe, Atmospheric Environment, 38, 5825-5836, 2004.

"Towards an Understanding of the Fine Particle Variations in the LFV: Integration of Chemical, Physical and Meteorological Observations," J.R. Brook, K.B. Strawbridge, B.J. Snyder, H. Boudries, D.R. Worsnop, S. Sharma, K. Anlauf, G. Lu, K. Hayden, Atmospheric Environment, 38, 5775-5788, 2004.

"Chemical Composition of Titan's Haze: Are PAHs Present?" M.G. Trainer, A.A. Pavlov, J.L. Jimenez, C.P. McKay, D.R. Worsnop, O.B. Toon, M.A. Tolbert, Geophys. Res. Lett., 31 L17S08, doi:10,1029/2004GL019859, 2004.

"Uptake of H₂¹⁷O(g) and D₂O(g) by Aqueous Sulfuric Acid Droplets," M. Gershenzon, P. Davidovits, L.R. Williams, Q. Shi, J.T. Jayne, C.E. Kolb, D.R. Worsnop, J. Phys. Chem. A, 108, 1567-1573, 2004.

"Effect of Relative Humidity on the Detection of Sulfur Dioxide and Sulfuric Acid Using a Chemical Ionization Mass Spectrometer," D. Salcedo, P.W. Villalta, V. Varutbangkul, J.C. Wormhoudt, R.C. Miake-Lye, D.R. Worsnop, J.O. Ballenthin, W.F. Thorn, A.A. Viggiano, T.M. Miller, R.C. Flagan, J.H. Seinfeld, Int. J. of Mass Spectro., 231, 17-30, 2004.

"Mobile Laboratory with Fast Response Instruments for Air Quality Forecast Urban Emissions and Ambient Concentration Measurements," C.E. Kolb, S.C. Herndon, J.T. Jayne, J.H. Shorter, M.S. Zahniser, D.R. Worsnop, Proc. of A&WMA's 97th Annual Conference & Exhibition Sustainable Development: Gearing Up for the Challenge!  June 22-25, 2004, Indianapolis, IN

"Numerical Characterization of Particle Beam Collimation: Part II Integrated Aerodynamic-Lens-Nozzle System," X. Zhang, K.A. Smith, D.R. Worsnop, J.L. Jimenez, J.T. Jayne, C.E. Kolb, J. Morris, P. Davidovits, Aerosol Sci. & Tech.,  38, 619-638, 2004.

"Comment on Gas-Phase Flow and Diffusion Analysis of the Droplet-Train/Flow-Reactor Technique for the Mass Accommodation Process," D.R. Worsnop, L.R. Williams, C.E. Kolb, J. Phys. Chem. A, 108, 8542-8543, 2004.

"Comment on The NH₃ Mass Accommodation Coefficient for Uptake onto Sulfuric Acid Solution," D.R. Worsnop, L.R. Williams, C.E. Kolb J. Phys. Chem. A, 108, 8546-8548, 2004.

"Insights into the Chemistry of New Particle Formation and Growth Events in Pittsburgh Based on Aerosol Mass Spectrometry," Q. Zhang, C.O. Stanier, M.R. Canagaratna, J.T. Jayne, D.R. Worsnop, S.N. Pandis, J.L. Jinenez, Environ. Sci. Technol., 38, 4797-4809, 2004.

"Submicron Aerosol Composition at Trinidad Head, California, during ITCT 2K2: Its Relationship with Gas Phase Volatile Organic Carbon and Assessment of Instrument Performance," J.S. Allan, K.N. Bower, H. Coe, H. Boudries, J.T. Jayne, M.R. Canagaratna, D.B. Millet, A.H. Goldstein, P.K. Quinn, R.J. Weber, D.R. Worsnop, JGR, 109, D23S24, doi:10.1029/2003JD004208, 2004.

"Chase Studies of Particulate Emissions from in-use New York City Vehicles," M.R. Canagaratna, J.T. Jayne, D.A. Ghertner, S. Herndon, Q. Shi, J.L. Jimenez, P.J. Silva, P. Williams, T. Lanni, D.R. Worsnop, Aerosol Sci. & Tech., 38, 555-573, 2004.

"Multiscale Simulations of Tropospheric Chemistry in the Eastern Pacific and on the U.S. West Coast During Spring 2002," Y. Tang, G.R. Carmichael, L.W. Harowitz, I. Uno, J.H. Woo, D.G. Streets, D. Dabdub, G. Kurata, A. Sandu, J. Allan, E. Atlas, F. Flocke, L.G. Huey, R.O. Jakoubek, D.B. Millet, P.K. Quinn, J.M. Roberts, D.R. Worsnop, A. Goldstein, S. Donnelly, S. Schauffler, V. Stroud, K. Johnson, M.A. Avery, H.B. Singh, E.C. Apel, J. Geophys. Res., 109, D23S11, doi:10.2004JD004513, 2004.

"Technical Note: Generalized Method for the Extraction of Chemically Resolved Mass Spectra from Aerodyne Aerosol Mass Spectrometer Date,"  J.D. Allan, A.E. Delia, H. Coe, K.N. Bower, M.R. Alfarra, J.L. Jimenez, A.M. Middlebrook, F. Drewnick, T.B. Onasch, M.R. Canagaratna, J.T. Jayne, D.R. Worsnop, Journal of Aerosol Sci., 35, 909-922, 2004.

"Products and Mechanisms of Ozone Reactions with Oleic Acid for Aerosol Particles Having Core-Shell Morphologies," Y. Katrib, S.T. Martin, H.M. Hung, Y. Rudich, H. Zhang, J.G. Slowik, P. Davidovits, J.T. Jayne, D.R. Worsnop, J. Phys. Chem. A, 108, 6686-6695. 2004.

"Volatile Organic Compound Measurements at Trinidad Head, California, During ITCT 2K2: Analysis of Sources, Atmospheric Composition, and Aerosol Residence Times," D.B. Millet, A.H. Goldstein, J.D. Allan, T.S. Bates, H. Boudries, K.N. Bower, H. Coe, Y. Ma, M. McKay, P.K. Quinn, A. Sullivan, R.J. Weber, D.R. Worsnop, J. Geophys. Res., 109, D23S16,  doi:10.1029/2003JD004026, 2004.

"Online Mass Spectrometric Aerosol Measurements During the MINOS Campaign (Crete, August 2001)," J. Schneider, S. Borrmann, A.G. Wollny, M. Bläsner, N. Mihalopoulos, K. Oikonomou, J. Sciare, A. Teller, Z. Levin, D.R. Worsnop, Atmospheric Chemistry and Physics, 4, 65-80, 2004.

"Measurement of Ambient Aerosol Composition during the PMTACS-NY 2001 using an Aerosol Mass Spectrometer. Part I: Chemically Speciated Mass Distributions," F. Drewnick, J.J. Schwab, J.T. Jayne, M. Canagaratna, D.R. Worsnop, K.L. Demerjian,   Aerosol Science & Technology,  38, 92-103, 2004.

"Measurement of Ambient Aerosol Composition during the PMTACS-NY 2001 using an Aerosol Mass Spectrometer. Part II: Chemically Speciated Mass Distributions," F. Drewnick, J.J. Schwab, J.T. Hayne, M. Canagaratna, D.R. Worsnop, K.L. Demerjian,  Aerosol Science & Technology,  38, 104-117, 2004.

"Aircraft-based Aerosol Size and Composition Measurements during ACE-Asia Using an Aerodyne Aerosol Mass Spectrometer," R. Bahreini, J.L. Jimenez, J. Wang, R.C. Flagan, J.H. Seinfeld, J.T. Jayne, D. Worsnop, J. Geophys. Res., 108, No.D23, 8645, doi:10.1029/2002JD003226, 2003.

"Uptake of Gas-Phase Species by 1-Octonal. 1. Uptake of a-Pinene, g-Terpinene, p-cymene, and 2-Methyl-2-hexanol as a Function of Relative Humidity and Temperature," H.Z Zhang, Y.Q. Li, J.-R. Xia, P. Davidovits, L.R. Williams, J.T. Jayne, C.E. Kolb, and D.R. Worsnop, J. Phys. Chem. A, 107, 6388-6397, 2003.

"Uptake of Gas-Phase Species by 1-Octonal. 2. Uptake of Hydrogen Halides and Acetic Acid as a Function of Relative Humidity and Temperature," H.Z.  Zhang, Y.Q. Li, J.-R. Xia, P. Davidovits, L.R. Williams, J.T. Jayne, C.E. Kolb, and D.R. Worsnop, J. Phys. Chem. A, 107, 6398-6407, 2003.

"Comparison of particle mass spectrometers during the 1999 Atlanta Supersite Project," A.M. Middlebrook, D.M. Murphy, S.-H. Lee, D.S. Thomson, K.A. Prather, R.J. Wenzel, D.-Y Liu, D.J. Phares, K.P. Rhoads, A.S. Wexler, M.V. Johnston, J.L. Jimenez, J.T. Jayne, D.R. Worsnop, I. Yourshaw, J.H. Seinfeld, R.C. Flagan, J. Geophys. Res., 108 (D7), 8424, doi:10.1029/2001JD000660, 2003.

"Quantitative sampling using an Aerodyne aerosol mass spectrometer. Part 1: Techniques of data interpretation and error analysis," J.D. Allan, J. L. Jimenez H. Coe, K.N. Bower, P.I. Williams, J.T. Jayne and D.R. Worsnop, J. Geophys. Res. 108 (D3), 4090, doi:10.1029/2002JD002358, 2003.

"Quantitative sampling using an Aerodyne aerosol mass spectrometer. Part 2: Measurements of fine particulate chemical composition in two UK cities," J.D. Allan, H. Coe, K.N. Bower, P.I. Williams, M.W. Gallagher, MR. Alfarra, J.L. Jimenez, E. Nemitz, A.G. McDonald, M.R. Canagaratna, J.T. Jayne and D.R Worsnop, J. Geophys. Res. 108 (D3), 4091, doi:10.1029/2002JD002359, 2003.

"Chemical Ionization Mass Spectrometer for Measurement of Tropospheric Sulfur Dioxide and Sulfuric Acid," D. Salcedo, P.W. Villalta, V. Varutbangkul, J.C. Wormhoudt, R.C. Miake-Lye, D.R. Worsnop, R.C. Flagan, J.H. Seinfeld, submitted Int. J. Mass Spectrom., (2002).

"Chemical kinetic model for reactive transformations of aerosol particles," D. R. Worsnop, J. W. Morris, Q. Shi, P. Davidovits and C. E. Kolb, submitted Geophys. Res. Lett. (2002).

"Rate Constant for the Reaction of Cl₂(aq) with OH¯," M. Gershenzon, P. Davidovits, J.T. Jayne, C.E. Kolb and D.R. Worsnop, J. Phys. Chem. A, in press (2002).

"Ambient Aerosol Sampling Using the Aerodyne Aerosol Mass Spectrometer," J.L. Jimenéz, J.T. Jayne, Q. Shi, C.E. Kolb, D.R. Worsnop, I. Yourshaw, J.H. Seinfeld, R.C. Flagan, X. Zhang, K.A. Smith, J. Morris and P. Davidovits, J. Geophys. Res., 108 (D7), 8425, doi:10.1029/2001JD001213, 2003.

"Kinetics of Trace Gas Uptake by Liquid Surfaces," C.E. Kolb, P. Davidovits, J.T. Jayne. Q. Shi, and D.R. Worsnop, Progress in Reaction Kinetics and Mechanism, 27, 1-46 (2002).

"Ternary H₂SO₄/HNO₃/H₂O Optical Constants: New Measurements from Aerosol Spectroscopy under Stratospheric Conditions," M.L. Norman, R.E. Miller, and  D.R. Worsnop, J. Phys. Chem. A, 106, 6075-6083 (2002).

"Kinetics of submicron oleic acid aerosols with ozone: A novel aerosol mass spectrometric technique," J.W. Morris, P. Davidovits, J.T. Jayne, J.L. Jiménez, Q. Shi, C.E. Kolb, D.R. Worsnop, W.S. Barney, and G. Cass, Geophys. Res. Lett., 29, 1-4 (2002).

"Numerical Characterization of Particle Beam Collimation by an Aerodynamic Lens-Nozzle System Part I: An Individual Lens or Nozzle," X. Zhang, K.A. Smith, D.R. Worsnop, J. Jiménez, J.T. Jayne and C.E. Kolb, Aer. Sci Technol., 36, 617-631(2002).

"Uptake of HCl(g) and HBr(g) on Ethylene Glycol Surfaces as a Function of Relative Humidity and Temperature," Y.Q. Li, H.Z. Zhang, P. Davidovits, J.T. Jayne, C.E. Kolb, and D.R. Worsnop, J. Phys. Chem. A, 106, 1220-1227 (2002).

"Diffusion Coefficients in Cold Sulfuric Acid Solution," J.G. Kleno, M.W. Kristiansen, C.J. Nielsen, E.J. Pedersen, L.R. Williams, and T. Pedersen, J. Phys. Chem. A., 105, 8440-8444 (2001). 

"Chemical Kinetics of the NaO (A²E⁺) + O(³P) Reaction," J. Griffin, D.R. Worsnop, R.C. Brown, C.E. Kolb, and D.R. Herschbach, J. Phys. Chem. A , 105, 1643-1648 (2001).

"Simultaneous Uptake of DMS and Ozone on Water," M. Gershenzon, P. Davidovits, J.T. Jayne, C.E. Kolb, and D.R. Worsnop, J. Phys. Chem. A, 105, 7031-7036 (2001).

"Mass and Thermal Accommodation Coefficients of H₂O (g) on Liquid Water as a Function of Temperature," Y.Q. Li, P. Davidovits, Q. Shi, J.T. Jayne, C.E. Kolb and D.R. Worsnop, J. Phys. Chem. A, 105, 10627-10634 (2001).

"Kinetic Model for Reaction of ClONO₂ with H₂O, HCl and HOCl in Sulfuric Acid Solution," Q. Shi, P. Davidovits, J.T. Jayne, C. E. Kolb, D. R. Worsnop, J. Geophys. Res., 106, 24259-24274 (2001).

"Gas Phase Diffusion in Droplet Train Measurements of Uptake Coefficients," D.R. Worsnop, Q. Shi, J.T. Jayne, C.E. Kolb, E. Swartz, and P. Davidovits, J. Aer. Sci., 32, 877-891 (2001).

“Guidance for the Performance Evaluation of Three-Dimensional Air Quality Modeling Systems,” C. Seigneur, B. Pun, P. Pai, J.-F. Louis, P. Solomon, C. Emery, R. Morris, M. Zahniser, D. Worsnop, P. Koutrakis, W. White, and I. Tombach, J. Air Waste Manage. Assoc., 50, 588-599 (2000).

"Development of an Aerosol Mass Spectrometer for Size and Composition Analysis of Submicron Particles," J.T. Jayne, D. C. Leard, X. Zhang, P. Davidovits, K.A. Smith, C.E.Kolb, and D.R. Worsnop, Aerosol Sci. Technol., 33, 49-70 (2000).

"Uptake of Gas-Phase SO₂, H₂S, and CO₂ by Aqueous Solutions," J. Boniface, Q. Shi, Y.Q. Li, J.L. Cheung, O.V. Rattigan, P. Davidovits, D.R. Worsnop, J.T. Jayne, and C.E. Kolb, J. Phys. Chem., 104, 7502-7510 (2000).

"Uptake of Gaseous SO₂ in Aqueous Sulfuric Acid: Oxidation by H₂O₂, O₃ and HONO," O.V. Rattigan, J. Boniface, E. Swartz, P. Davidovits, J.T. Jayne, C.E. Kolb, and D.R. Worsnop,  J. Geophys. Res., 105, 29065-29078 (2000).

"Heterogeneous Interactions of NO₂ with Aqueous Surfaces," J.L. Cheung, Y.Q. Li, J. Boniface, Q. Shi and P. Davidovits, D.R. Worsnop, J.T. Jayne, and C.E. Kolb,  J. Phys. Chem. A., 104, 2655-2662,(2000).

"Infrared Complex Refractive Indices of Supercooled Binary HNO₃/H₂O Solutions," M.L. Norman, J. Qian, R.E. Miller, and D.R. Worsnop, J. Geophys. Res., 104, 30571-30584 (1999).

"Uptake of Gas-Phase Ammonia II: Uptake by Sulfuric Acid Surfaces," E. Swartz, Q. Shi, P. Davidovits J. T. Jayne, D. R. Worsnop and C. E. Kolb, J. Phys. Chem., 103, 8824-8833 (1999).

"Uptake of Gas-Phase Ammonia I: Uptake by Aqueous Surfaces as a Function of pH" Q. Shi, P. Davidovits J. T. Jayne, D. R. Worsnop and C. E. Kolb, J. Phys. Chem., 103, 8812-8823 (1999).

"A Temperature- and Composition-Dependent Study of H₂SO₄ Aerosol Optical Constants Using Fourier Transform and Tunable Diode Laser Infrared Spectroscopy," R. F. Niedziela, M.L. Norman, C.L. DeForest, R.E. Miller and D.R. Worsnop, J. Phys. Chem., 103, 8030-8040 (1999).

"Observation of the A²E⁺ X ²A Electronic Transition of NaO," S. Joo, D.R. Worsnop, C.E. Kolb, S.K. Kim and D.R. Herschbach, J. Phys. Chem., 103, 3193-3199 (1999).

"Isotope Exchange for Gas-Phase Acetic Acid and Ethanol at Aqueous Interfaces; A Study of Surface Reactions," Q. Shi, Y.Q. Li, P. Davidovits J. T. Jayne, D. R. Worsnop and C. E. Kolb, J. Phys. Chem., 103, 2417-2430 (1999).

"Lower Stratospheric Processes," A.R. Ravishankara, T.G. Shepard, M.P. Chipperfield, P.H. Haynes, S.R. Kawa, T. Peter, R.A. Plumb, R.W. Portmann, W.J. Randel, D. W. Waugh and D.R. Worsnop, in WMO/UNEP Scientific Assessment of Ozone Depletion: 1998 (1999).

"A Temperature- and Frequency-Dependent Study Optical for Nitric Acid Dihydrate from Aerosol Spectroscopy," R. F. Niedziela, R.E. Miller and D.R. Worsnop, J. Phys. Chem., 102, 6477-6484 (1998).

"Comment on Mathematical Models of the Uptake of ClNO₂ and Other Gases by Atmospheric Aerosols," C.E. Kolb, D.R. Worsnop, J.T. Jayne and P. Davidovits,  Aer. Sci. Technol., 29, 893-897 (1998).

"Temperature- and Composition Dependent Optical Constants for Sulfuric Acid", R.F. Niedziela, M.L. Norman, R.E. Miller and D.R. Worsnop, Geophys. Res. Lett., 25, 4477-4480 (1998).

"The Accommodation Coefficient of H₂SO₄ Vapor on Aqueous Sulfuric Acid Surfaces and Gaseous Diffusion of H₂SO₄ in N₂/H₂O," U. P`schl, M. Canagaratna, J.T. Jayne, L.T. Molina, D.R. Worsnop, C.E. Kolb, and M.J. Molina, J. Phys. Chem., 102 , 10082-10089 (1998).

"Heterogeneous Uptake of HCl by Sulfuric Acid Solutions" G.N. Robinson, D.R. Worsnop, J.T. Jayne, C.E. Kolb, E. Swartz, Davidovits, P., J. Geophys. Res., 103, 25371-25381 (1998).

"Evaluating the Role of NAT, NAD, and liquid H₂SO₄/H ₂O/HNO₃ solutions in Antarctic polar stratospheric cloud aerosol: Observations and implications," L. A.Del Negro et al, J. Geophys. Res., 103, 13255-13282 (1998).

"The Pressure and Temperature Dependence of the Gas Phase Reaction of SO₃ with H₂O and the Heterogeneous Reaction of SO₃ with H₂O/H₂SO₄ Surfaces," J.T. Jayne, U. Pöschl, D. Dai, Y. Chen. L.T. Molina, D.R. Worsnop, C.E. Kolb, and M.J. Molina, J. Phys. Chem., 101, 10000 (1997).

"Heterogeneous Uptake of N₂O₅ and ClONO₂ by Sulfuric Acid Solutions" G.N. Robinson, D.R. Worsnop, J.T. Jayne, C.E. Kolb and P. Davidovits, J. Geophys. Res., 102, 3583-3601 (1997).

"Infrared spectroscopy of sulfuric acid/water aerosols: Freezing characteristics", M.L. Clapp, R.F. Niedziela, L.J. Richwine, T. Dransfield, R.E. Miller and D.R. Worsnop, J. Geophys. Res., 102, 8899-8907 (1997).

"Solubility Data Requirements and New Experimental Methods in Atmospheric Aerosol Research," C.E. Kolb, J.T. Jayne, D.R. Worsnop and P. Davidovits, Pure Appl. Chem., 69, 959-968 (1997).

"Horizontal Bubble Train Apparatus for Heterogeneous Chemistry Studies: Uptake of Gas Phase Formaldehyde," E. Swartz, J. Boniface, I. Tchertkov, O.V. Rattigan, D.V. Robinson, P. Davidovits, D.R. Worsnop, J.T. Jayne and C.E. Kolb, Environ. Sci. Technol., 31, 2634-2641 (1997).

"Uptake of Gas-Phase Formaldehyde by Aqueous Acid Surfaces" J. T. Jayne, D. R. Worsnop, C. E. Kolb, E. Swartz, and P. Davidovits, J. Phys. Chem., 100, 8015 (1996).

"Dynamics at the Gas-Liquid Interface" G. M. Nathanson, P. Davidovits, D. R. Worsnop and C. E. Kolb, J. Phys. Chem., 100, 13007 (1996).

"Comment on A Spectroscopic Tour Through the Liquid Aerosol Interface: Implications for Atmospheric Chemistry," C.E. Kolb, D.R. Worsnop, M.S. Zahniser, and P. Davidovits. J. Geophys. Res., 101, 23039-23043 (1996);

"Comments on the Reply by Aker et al.," C.E. Kolb, D.R. Worsnop, M.S. Zahniser, and P. Davidovits, ibid., 28863-28866 (1996).

"Laboratory Studies of Atmospheric Heterogeneous Chemistry," C.E. Kolb, D.R. Worsnop, M.S. Zahniser, P. Davidovits, L.F. Keyser, M.-T. Leu, M.J. Molina, D.R. Hanson, A.R. Ravishankara, L.R. Williams and M.A. Tolbert, Progress and Problems in Atmospheric Chemistry, J.R. Barker, ed., in Adv. Series Phys. Chem., 3, C.- Y. Ng, ed., World Scientific Publishing Co. (1995).

"Metastable Phases in Polar Stratospheric Aerosols," L.E. Fox, D.R. Worsnop, M.S. Zahniser, and S.C. Wofsy, Science, 267, 351 (1995).

"Bubble Column Apparatus for Heterogeneous Chemistry Studies," J.A. Shorter, W.J.DeBruyn, J.H. Hu, E. Swartz, P. Davidovits, D.R. Worsnop, M.S. Zahniser and C.E.Kolb, Environ. Sci. Technol., 29, 1171 (1995).

"Uptake of Haloacetyl and Carbonyl Halides by Water Surfaces," W.J. De Bruyn, J.A. Shorter, P. Davidovits, D.R. Worsnop, M.S. Zahniser and C.E. Kolb, Environ. Sci. Technol., 29, 1179 (1995).

"Henry's Law Solubilities and Setchenow Coefficients for Biogenic Reduced Sulfur Species Obtained from Gas-Liquid Uptake Measurements," W.J. De Bruyn, E. Swartz, J.H. Hu, J.A.Shorter, P. Davidovits, D.R. Worsnop, M.S. Zahniser and C.E. Kolb, J. Geophys. Res., 100, 7245 (1995).

"Frequency-Dependent Optical Constants of Water Ice Obtained Directly from Aerosol Extinction Spectra", M.L. Clapp, R.E. Miller and D.R. Worsnop, J. Phys. Chem, 99, 6317 (1995).

"Complex Refractive Indices in the infrared of nitric acid trihydrate aerosols", L.J. Richwine, M.L. Clapp, R.E. Miller and D.R. Worsnop, Geophys. Res. Lett., 22, 2625 (1995).

"The Uptake of Gas Molecules by Liquid Surfaces" P. Davidovits, J. H. Hu, D. R. Worsnop, M. S. Zahniser, and C. E. Kolb, Discussions of the Faraday Soc., 100, 65 (1995).

"Decomposition of Halomethanes on a Alumina Surfaces at Stratospheric Temperatures," G.N. Robinson, A. Freedman, D.R. Worsnop, and C.E. Kolb, Geophys. Res. Lett., 21, 377 (1994).

"Uptake of Gas Phase Oxidized Sulfur Species Methane Sulfuric Acid, Dimethyl Sulfoxide, and Dimethyl Sulfone by Aqueous Surfaces," W.J. De Bruyn, J.A. Shorter, P. Davidovits, D.R. Worsnop, M.S. Zahniser, and C.E. Kolb, J. Geophys. Res., 94, 16927 (1994).

"The Gas Phase Reaction of Sulfur Trioxide with Water Vapor," C.E. Kolb, J.T. Jayne, D.R. Worsnop, M.J. Molina, R.F. Meads and A.A. Viggiano, J. Amer. Chem. Soc., 116, 10,314 (1994).

"Reactive Uptake of Cl₂(s) and Br₂(g) by Aqueous Surfaces as a Function of Br- and I- Ion Concentration: The Effect of Chemical Reaction at the Interface," J.H. Hu, Q. Shi, P. Davidovits, D.R. Worsnop, M.S. Zahniser and C.E. Kolb, J. Phys. Chem., 99, 8768 (1994).

"Vapor Pressures of Solid Hydrates of Nitric Acid: Implications for Polar Stratospheric Clouds," D.R., Worsnop, L.E. Fox, M.S. Zahniser, and S.C. Wofsy, Science, 259, 71-74, (1993).

"Uptake of Gas Phase Acetone by Water Surfaces," S.X. Duan, J.T. Jayne, P. Davidovits, D.R. Worsnop, M.S. Zahniser and C.E. Kolb, J. Phys. Chem., 97, 2284 (1993).

"Molecular Beam Chemistry: Magnetic Deflection Analysis of Monoxide Electronic States from Alkali Atom + Ozone Reactions," X. Shi, D.R. Herschbach, D.R. Worsnop and C.E. Kolb, J. Phys. Chem., 97, 2113 (1993).

"Uptake of Gas Phase Halogenated Acetic Acid Molecules by Water Surfaces," J.H. Hu, J.A. Shorter, P. Davidovits, D.R. Worsnop, M.S. Zahniser and C.E. Kolb, J. Phys. Chem., 97, 11037. (1993).

"Chemical Kinetic Studies of Atmospheric Reactions Using Tunable Diode Laser Spectroscopy," D.R. Worsnop, D.D. Nelson, and M.S. Zahniser, Proceedings of the SPIE Conference on Optical Methods in Atmospheric Chemistry, SPIE Vol. 1715, 18-33 (1992).

"Low Temperature Absolute Rate Constants for the Reaction of Atomic Sodium with Ozone and Nitrous Oxide," D.R. Worsnop, M.S. Zahniser, and C.E. Kolb, J. Phys. Chem., 95, 3960 (1991), Errata, J. Phys. Chem., 97, 9088 (1992).

"Excitation Mechanism of the Mesospheric Sodium Nightglow," D.R. Herschbach, C.E. Kolb, D.R. Worsnop and X. Shi, Nature, 356, 414 (1992).

"Chemical Kinetics and Dynamics of the Mesospheric Sodium Nightglow," C.E. Kolb, D.R. Worsnop, M.S. Zahniser, G.N. Robinson, X. Shi, and D.R. Herschbach, in Gas Phase Metal Reactions, A. Fontijn, ed., 15, North-Holland (1992).

"Uptake of Gas Phase Aldehydes by Water Surfaces," J.T. Jayne, S.X. Duan, P. Davidovits, D.R. Worsnop, M.S. Zahniser, and C.E. Kolb, J. Phys. Chem., 96, 5452 (1992).

"Tropospheric Heterogeneous Chemistry of Haloacetyl and Carbonyl Halides," W.J. De Bruyn, S.X. Duan, X.Q.Shi, P. Davidovits, D.R. Worsnop, M.S. Zahniser and C.E. Kolb, Geophys. Res. Lett., 19, 1939 (1992).

"Uptake of N₂O₅ and HNO₃ by Aqueous Sulfuric Acid," J.M. Van Doren, L.R. Watson, P. Davidovits, D.R. Worsnop, M.S. Zahniser, and C.E. Kolb, J. Phys. Chem., 95, 1684 (1991).

"The Uptake of Gas Phase Alcohol and Organic Acid Molecules by Water Surfaces," J.T. Jayne, S.X. Duan, P. Davidovits, D.R. Worsnop, M.S. Zahniser, and C.E. Kolb, J. Phys. Chem., 95, 6329 (1991).

"The Uptake of Gas Molecules by Liquids: A Model," P. Davidovits, J.T. Jayne, S.X. Duan, D.R. Worsnop, M.S. Zahniser, and C.E. Kolb, J. Phys. Chem., 95, 6337 (1991).

"Temperature Dependence of the Uptake Coefficients of HCl, HNO₃, and N₂O₅ by Water Droplets," J.M. Van Doren, L.R. Watson, P. Davidovits, D.R. Worsnop, M.S. Zahniser, and C.E. Kolb, J. Phys. Chem., 94, 3264 (1990).

"Uptake of HCl Molecules by Aqueous Sulfuric Acid Droplets as a Function of Acid Concentration," L.R. Watson, J.M. Van Doren, P. Davidovits, D.R. Worsnop, M.S. Zahniser and C.E. Kolb, J. Geophys. Res., 95, 5631 (1990).

"The Effect of H₂O₂ Content on the Uptake of SO₂(g) by Aqueous Droplets," J.T. Jayne, J.A.Gardner, P. Davidovits, D.R. Worsnop, M.S. Zahniser, and C.E. Kolb, J. Geophys. Res., 95, 20559 (1990).

"The Uptake of SO₂(g) by Aqueous Surfaces as a Function of pH; the Effect of Chemical Reaction at the Interface," J.T. Jayne, P. Davidovits, D.R. Worsnop, M.S. Zahniser, and C.E. Kolb, J. Phys. Chem., 94, 6041 (1990).

"The Temperature Dependence of Mass Accommodation of SO₂ and H₂O₂ on Aqueous Surfaces", D.R. Worsnop, M.S. Zahniser, C.E. Kolb, J.A. Gardner, L.R. Watson, J.M. Van Doren, J.T. Jayne, and P. Davidovits, J. Phys. Chem., 93, 1159 (1989).

"Measurement of the Mass Accommodation Coefficient of SO₂(g) on Water Droplets," J.A. Gardner, L.R. Watson, Y.G. Adewuyi, P. Davidovits, M.S. Zahniser, D.R. Worsnop, and C.E. Kolb, J. of Geophys. Res., 92, 10887 (1987).

"Absolute Photodissociation Cross Sections of Gas-Phase Sodium Chloride at Room Temperature," J.A. Silver, D.R. Worsnop, A. Freedman, and C.E. Kolb, J. Chem. Phys., 84, 4378 (1986).  

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