Author Biographies

Natannael Almeida Sousa

Phd student, University of São Paulo

Phd student on Meteorology program from the University of São Paulo in the field of atmospheric sciences studying interaction of atmospheric pollution and its effects in humans and environment 

Lightning Talk Title: Analysis of Indoor/Outdoor ultrafine particles inside a retirement community in São Paulo, Brazil, and the potential health risk

Alexander Archibald

Reader, University of Cambridge & NCAS-Climate

The Archibald Team: We are a diverse team of research scientists and PhD students interested in better understanding what goes on in the atmosphere.

Lightning Talk Title: Impacts of mechanistic changes in the oxidation of dimethyl sulfide on tropospheric chemistry and climate

Jeremy Avise

Branch Chief, Modeling and Meteorology Branch, California Air Resources Board

Principal Presentation Title: The Future of Atmospheric Chemical Mechanism Development: A Panel Discussion of Possible Forward Paths

Victoria Barber

Postdoctoral Researcher, MIT

Dr. Barber did her undergraduate degree at Swarthmore college, and then went on to graduate school at the University of Pennsylvania where she completed a PhD in physical chemistry under Marsha Lester. She is now a postdoc at MIT.

Principal Presentation Title: Automating the Search for New Pathways in Atmospheric Oxidation Chemistry

Kelvin Bates

Research Associate, Harvard University & University of California Davis

Kelvin Bates is a Research Associate at Harvard and a Visiting Research Scientist at UC Davis. He received his PhD in Chemistry from Caltech and was previously a NOAA Climate & Global Change Postdoc at Harvard.

Principal Presentation Title: Intercomparison and optimization of aromatic oxidation mechanisms

Frederico Bianchi

Associate Professor, University of Helsinki

Federico Bianchi, born in Bergamo, Italy, in 1984, graduated in chemistry from University of Milan. He received his Ph.D. in atmospheric chemistry from the Eidgenössische Technische Hochschule (ETH) Zürich (2014). In 2017, he received the Arne Richter Award for Outstanding Early Career Scientists given by the European Geosciences Union. After being awarded with an ERC Starting Grant in 2019, he was appointed as Associate Professor on atmosphere and cryosphere interactions at the University of Helsinki. His research interests are the formation of new particles in extreme environments, from pristine free troposphere to polluted megacities. Currently, his group is focusing on understanding preindustrial atmosphere and the influence of biogenic highly oxygenated organic molecules on aerosol formation.

Principal Presentation Title: The effect of COVID lockdown on the atmospheric air quality in China and northern Italy.

Nadine Borduas-Dedekind

senior scientist/subgroup leader, ETH Zurich

Nadine is an atmospheric organic chemist interested in chemical mechanisms in the gas phase and in the aerosol phase. She has a background in organic chemistry and a PhD in atmospheric chemistry from the University of Toronto. She is currently a SNSF Ambizione Fellow at ETH Zurich hosted in the environmental chemistry and atmospheric physics groups. Ongoing research interests include reactive oxygen species produced during photochemical exposure of aerosols and organic matter acting as atmospheric ice nuclei. Nadine is moving to the University of British-Columbia in January 2021 to start as an assistant professor in Chemistry to look at chemical mechanisms indoors and outdoors using mass spectrometry.

Principal Presentation Title: Photoproduction of singlet oxygen from aqueous organic aerosols

Benjamin Brown-Steiner

Staff Scientist, Atmospheric and Environmental Research

Dr. Brown-Steiner's research focuses on the development and analysis of chemical mechanisms of different complexities, as well as a range of chemical modeling including biomass burning plume modeling and global 3D modeling.

Principal Presentation Title: Incorporation of Detailed Gas-Phase Furan Mechanism into a Young Biomass Burning Plume Box Model

Chenxia Cai

Manager, California Air Resources Board

Chenxia Cai received her PhD in Atmospheric Science from State University of New York at Albany. She has applied air quality models to study various topics related with the formation of ozone and particulate matters. Chenxia is currently the manager of the Regional Air Quality Modeling Section in California Air Resources Board (CARB). Her section is responsible for carrying out the state-of-the-science meteorology and air-quality modeling required for control strategy evaluation and development, pollution transport assessment, and State Implementation Plan (SIP) updates for all criteria pollutants and regional haze in California. Her section also provides modeling support for all major field studies in California as well as other research activities at CARB.

Principal Presentation Title: Ozone trend and its response to emission reductions in the South Coast of California

Mixtli Campos

Postdoctoral Researcher, Center for Atmospheric Sciences, National Autonomous University of Mexico

Dr. Mixtli Campos-Pineda is a postdoctoral researcher at the Center for Atmospheric Sciences in the National Autonomous University of Mexico. He received his PhD from the University of California, Riverside and was a postdoctoral researcher at the University of Southern California. Past projects involved the study of organic radicals and Criegee intermediates from ozonolysis of alkenes, as well as dissociation dynamics of Pyrazine-Water clusters. Current projects involve Python and Julia code development for satellite data analysis and the construction of CEAS instruments for glyoxal measurements in the Metropolitan Area of the Valley of Mexico.

Principal Presentation Title: Direct measurements of vinoxy radicals and formaldehyde from ozonolysis of trans- and cis-2-butenes: Quantification of syn- and anti-conformers of Criegee intermediate and new insights into OH radical formation mechanism

Nicola Carslaw

Professor, University of York

Nicola Carslaw is a Professor in Indoor Air Chemistry at the University of York in the UK. She has worked in the field of air pollution since 1996 and has undertaken research in outdoor atmospheric radical measurements, detailed chemical modelling studies in support of ambient field campaigns and on indoor air chemistry modelling. Her research has driven experimental and field campaign design and provided insight into indoor air quality following: cleaning, emissions from materials, breath and skin emissions from people and impact of indoor lighting. She is a key member of the $50M Alfred P. Sloan Chemistry of the Indoor Environment (CIE) Program (, and leads ~200 scientists in the EU COST Action INDAIRPOLLNET (, which will shape indoor air quality research in Europe over the coming years. She is also a member of the UK Department of Health’s Committee on the Medical Effects of Air Pollution (COMEAP), and the associate editor for indoor air for the Atmospheric Environment journal.

Principal Presentation Title: The Wonderful World of Indoor Air Chemistry: Insights from a Detailed Chemical Model.

Aparajeo Chattopadhyay

Research Scientist I, NOAA Boulder and CIRES, University of Colorado Boulder

Dr. Aparajeo Chattopadhyay is a Research Scientist at the NOAA Chemical Sciences Laboratory (CSL) working with Dr. James B Burkholder of CPID group. Dr. Chattopadhyay received his Ph. D in Physical Chemistry under the supervision of Prof. Tapas Chakraborty from IACS Kolkata, India in 2018. Subsequently he joined NOAA CSL where his current research activities include laboratory studies related to biomass burning chemistry, assessment of perfluorenated compounds as replacement to CFCs etc. More can be found here .

Principal Presentation Title: Cl(2PJ) + Furan-2,5-dione (C4H2O3, maleic anhydride) reaction in the gas phase: Temperature and Pressure dependent rate coefficients, end-products, reaction mechanism and atmospheric implications

Jing Chen

Ph.D. student, University of Copenhagen

Jing Chen is working as a Ph.D. student in professor Henrik G. Kjaergaard's research group. Her research projects focus on the VOC oxidation mechanism under indoor and atmospheric conditions.

Principal Presentation Title: Fast Unimolecular Reaction of Ozonolysis Initiated First Generation Peroxy Radicals of Limonene and its Impact on Indoor Chemistry

Giancarlo Ciarelli

Postdoctoral Researcher., University of Helsinki. Institute for Atmospheric and Earth System Research (INAR)

Postdoctoral researcher at the Institute for Atmospheric and Earth System Research (INAR), University of Helsinki.

Principal Presentation Title: Modeling the effects of COVID-19 measures on air quality using a chemical transport model: impacts on the Po Valley and the Swiss Plateau regions

Matthew Coggon

Research Scientist, CIRES / NOAA

Matt Coggon is a research scientist at the Cooperative Institute for Research in Environmental Sciences and National Oceanic and Atmospheric Administration. Matt's research is focused on understanding the emissions and chemical transformation of volatile organic compounds (VOCs). Matt measures VOCs using a state-of-the-art proton-transfer-reaction mass spectrometer, which he deploys on aircraft and mobile laboratories to measure emissions from various sources. Matt's present research is focused on the emissions and atmospheric chemistry of VOCs emitted from biomass burning and volatile chemical products.

Principal Presentation Title: Updating chemical mechanisms to include the OH oxidation of key reactive biomass burning non-methane organic gases

Emma D'Ambro

Post-Doctoral Fellow, US EPA

Emma D’Ambro is an ORISE post-doctoral fellow stationed at the US EPA’s Office of Research and Development, working with Dr. Ben Murphy. Her research interests include developing mechanistic understandings of biogenic Secondary Organic Aerosol (SOA) formation, and more recently understanding the fate of air emissions of per- and polyfluoroalkyl substances (PFAS).

Principal Presentation Title: Developing Models to Understand Atmospheric Reactions of Per- and Polyfluoroalkyl Substances (PFAS)

Zachary Decker

PhD Candidate, CU/CIRES/NOAA

I am a PhD Candidate in Physical Chemistry in the Steven Brown group at CU Boulder and Tropospheric Chemistry group at NOAA through the Cooperative Institute for Research in Environmental Science. In the Brown group I focus on measurements of nitrogen oxides, ozone, NOy, NO3, and N2O5 by Cavity Ringdown spectroscopy. More recently I have focused on wildfire chemical mechanisms by flow tube experiments and aircraft observations using I- Chemical Ionization Mass Spectrometry. I graduated with a B.A. in Physical Chemistry from New College of Florida (NCF) and conducted my honors thesis work on the temperature and pressure dependent kinetics of the simplest criegee intermediate (CH2OO) and isoprene under Leonid Sheps at Sandia National Lab and Steve Shipman at NCF. For more information visit

Principal Presentation Title: Wildfire smoke at the transition from day to night to day - when all oxidants are at play

Mary Angelique G. Demetillo

Graduate Student, University of Virginia

Demetillo is a Ph.D. candidate in Department of Environmental Sciences at the University of Virginia. She earned her Bachelor's in physics and chemistry from Seton Hall University (South Orange, New Jersey). Her dissertation focuses on assessing air pollution inequality within cities.

Principal Presentation Title: Using TROPOMI to assess nitrogen dioxide air pollution inequality in major U.S. cities

Jean-Francois Doussin

Professor, Interuniversity Laboratory of Atmospheric Systems (LISA), CNRS UMR 7583, UPEC, UP and IPSL

Jean-Francois Doussin is leading the "MEREIA group" at LISA which activities are dealing with both field and airborne measurement of VOCs and NOy and with experimental simulations in smog chamber. These latter activities involves secondary aerosol, mineral dust or cloud droplets chemistry. His research is focused on understanding the chemical transformation of atmospheric contaminants during their atmospheric lifetime and their consequences on their properties (chemical, physical, toxicological). At the French National level, Prof. Doussin is Scientific Officer for atmospheric research at CNRS-INSU. Prof. J.F. Doussin is also leading EUROCHAMP, the research infrastructure coordinating Atmospheric Simulation Chamber community in Europe.

Principal Presentation Title: Multiphase and in-particle processes affecting SOA formation from organic compounds oxidation

Danielle Draper

Graduate Student, University of California, Irvine

Danielle is a graduate student at the University of California, Irvine whose main focus is understanding SOA formation from NO3 radical oxidation of monoterpenes through a variety of observational, experimental, and theoretical techniques.

Principal Presentation Title: Unlumping monoterpenes: Identification of unique first-generation oxidation pathways for the most prevalent cyclic monoterpenes

Pete Edwards

Independent Research Fellow (Assistant Professor), University of York

As an atmospheric chemist my research focuses on the complex processes that breakdown chemicals emitted into our atmosphere, and ultimately control global challenges such as air pollution and climate change. Following my PhD at the University of Leeds, UK, I spent 3 years as a PDRA at NOAA's ESRL labs in Boulder, CO, USA, before moving to the University of York. I work across the major sub-disciplines of the field, from instrument development, through laboratory and field experiments, the the use of chemical models to challenge and improve our understanding of atmospheric chemical phenomena.

Principal Presentation Title: Primary radical effectiveness: Does the nature of the primary radical matter for ozone production?

Mikael Ehn

Associate professor, University of Helsinki

Mikael Ehn received his Ph.D. in aerosol physics from the University of Helsinki, Finland, in 2010. In 2016, he was appointed Associate Professor (tenure track) in atmospheric physical chemistry at the University of Helsinki. His current research focuses on processes leading from volatile organic emissions to low-volatile vapors and secondary organic aerosol, primarily utilizing various mass spectrometric techniques.

Principal Presentation Title: The development and application of HOM formation mechanisms for use in atmospheric models – updates, improvements and challenges

Louisa Emmons

Senior Scientist, National Center for Atmospheric Research

Louisa Emmons is a Senior Scientist in the Atmospheric Chemistry Observations and Modeling Laboratory of the National Center for Atmospheric Research (NCAR). Louisa's current research interests lie in the integration of measurements with models to investigate the impact of sources and their chemical evolution on tropospheric composition. This work includes the evaluation, and improvement, of models with observations, and the interpretation of observations with model results. Louisa has also worked extensively with satellite observations of tropospheric constituents and published the first validation of the carbon monoxide (CO) retrievals from the Measurements Of Pollution In The Troposphere (MOPITT) instrument on the Terra satellite using airborne in situ measurements. She has also participated in numerous field campaigns, providing forecasting and flight planning support, as well as collaborating with numerous groups on analysis of observations. Louisa played a key role in the development of the NCAR community model MOZART (Model of OZone and Related Chemical Tracers), and now leads the development of the chemistry-climate model CAM-chem, a component of CESM. Her particular interest is in improving the representation of tropospheric ozone and precursors, both for surface air quality and in the remote atmosphere.

Principal Presentation Title: Multi-scale modeling of air quality and mechanism comparison with MUSICA

Rosa Fitzgerald

Professor & UTEP Representative, NOAA

Dr. Rosa Fitzgerald is a Professor in Physics. She obtained an M.S in Physics from Adelphi University, N.Y. and a Ph.D. in Physics from the University of California, Riverside. She was selected to represent U.C Riverside, in the U.C System 1991 academic brochure and was a recipient of the prestigious University of California System Dissertation Fellowship. She has had post-doctoral experiences at the University of California, Irvine and at the Center for Environmental Research, CE-CERT. She was also a Faculty Fellow at JPL/NASA and a research affiliate at that laboratory for several years. She is currently the UTEP representative of a NOAA consortium of Universities throughout the U.S. She has had funding from NASA, NOAA, NSF, the Texas Higher Education, SCERP, TCEQ, etc. In addition, she is a contributing faculty member to the UTEP ESE PhD Program and to the UTEP Computational Sciences PhD Program. At UTEP she started an Atmospheric Physics research group approximately 16 years ago and a newly created Atmospheric under-graduate Physics concentration, which have opened new career avenues for physics graduates in an expanding and marketable field.

Principal Presentation Title: The Future of Atmospheric Chemical Mechanism Development: A Panel Discussion of Possible Forward Paths

Frank Flocke

Scientist, NCAR/ACOM

PhD, Bergische Universität Wuppertal, 1992, at NCAR since 1992, currently Scientist III in NCAR's Atmospheric Chemistry Observations and Modeling Laboratory. Research focuses on airborne observations of tropospheric chemistry in polluted and remote environments.

Principal Presentation Title: Detailed examination of the chemistry in fresh wildfire plumes using GECKO-A

Lesly Franco

PhD Student, Massachusetts Institute of Technology

Lesly is a second-year PhD student at MIT working in Jesse Kroll's group. She is currently looking at the long-term chemical evolution of organic carbon in the atmosphere.

Lightning Talk Title: Laboratory simulations of multiday chemical oxidation of organic carbon in the atmosphere

Christian George


Dr. Christian GEORGE (Ph. D. in the field of Physical-Chemistry - 1993, Habilitation in Chemistry - 1999, University Louis Pasteur - Strasbourg) has been active in the field of atmospheric chemistry and/or physical chemistry over the last decade. He acted as research scientist at the Fraunhofer Institute ITA at Hanover (Germany), at the CNRS Centre for Surface Geochemistry at Strasbourg (France) and now at IRCELYON (France). His current research portfolio is based on studies bringing together atmospheric chemistry, environmental chemistry, physical chemistry, chemical kinetics, photochemistry… for a better understanding of the processes occurring in the troposphere. A central aspect of this work is the participation in collaborations across many disciplines.

Principal Presentation Title: Photosensitization is in the air and opens new route for sulfate production

Georgios Gkatzelis

Research Scientist, Institute of Energy and Climate Research, IEK-8: Troposphere, Forschungszentrum Jülich GmbH, Jülich, Germany

Dr. Gkatzelis received a Ph. D. in physical chemistry with Professor Astrid Kiendler-Scharr at the University of Cologne. He moved to NOAA, USA in 2018 as a post-doctoral researcher working with Dr. Carsten Warneke and since August, 2020 is a research scientist at Research Center Jülich, Germany. His major research has been on the emissions, chemical evolution and impacts of volatile organic compounds (VOCs) to secondary organic aerosol (SOA) formation in the Earth’s atmosphere. His research background includes multiple chamber and field studies in Europe, China, and the US. Specifically, he measures VOCs using start-of-the-art mass spectrometers that he deploys on ground site, mobile laboratory and aircraft platforms in order to identify, and quantify VOC emissions and their potential to form SOA. More recently his focus has been on emerging urban pollution sources, more specifically volatile chemical product emissions in urban environments and their emission strength compared to traditional sources as for example traffic.

Principal Presentation Title: The Human Forest: Understanding the Impacts of Volatile Chemical Product Emissions to Urban Air Quality

Wendy Goliff

Riverside City College

Dr. Goliff’s atmospheric chemistry research focuses on sampling and analysis of volatile organic compounds (VOCs), gas-phase chemistry mechanism development, and 3-D air quality modeling.  She has collaborated with Dr. Barbara Zielinska on a number of field campaigns such as the Central California Ozone Study (CCOS) in which ambient samples were collected with canisters and Tenax and then analyzed by gas chromatographs (GC) equipped with flame ionization detectors and GC/Fourier Transform Infrared Spectroscopy/Mass Spectrometry.  Futhermore, Dr. Goliff participated in the California Regional Particulate Air Quality Study (CRPAQS), for which she analyzed source samples of biomass burning, meat cooking, off-road vehicle exhaust, and brake and tire wear as well as ambient samples.  Dr. Goliff performed photochemical modeling studies with Dr. W. R. Stockwell using their chemical mechanism:  the Regional Atmospheric Chemistry Mechanism, Version 2 (RACM2) which includes improved mechanisms for biogenically emitted volatile organic compounds (BVOCs) and aromatic compounds.  The RACM2 mechanism has been implemented into the EPA 3-D model CMAQ to be released to the public in May 2014.  She published with Dr. Stockwell the manuscript documenting RACM2 to the journal Atmospheric Environment.  She also published a manuscript concerning nighttime chemistry for NSF in Atmospheric Environment, working with the South Coast Air Quality Management District (SCAQMD) testing control technologies to reduce gaseous and particulate emissions from hamburgers grilled with an underfire charbroiler, and conducting 3-D modeling (using WRF and CAMx) to study air quality in the Lake Tahoe Air Basin in conjunction with the Desert Research Institute (DRI).  Presently Dr. Goliff is working on a global version of RACM2, intended for modeling boundary conditions in air quality models.

Principal Presentation Title: Current Atmospheric Chemical Mechanisms Training

Colette Heald

Professor, MIT

Colette L. Heald is a Professor in the Departments of Civil and Environment Engineering & Earth, Atmospheric, and Planetary Sciences at MIT. She received her undergraduate degree in Engineering Physics from Queen’s University in Canada in 2000, and her PhD in Earth and Planetary Science from Harvard University in 2005. She held the NOAA Climate and Global Change postdoctoral fellowship at the University of California Berkeley from 2006-2007. Colette L. Heald heads the Global Atmospheric Composition and Chemistry Modeling Group at MIT.  Her primary research interests are the interactions between the biosphere and atmosphere and the evolution and impacts of atmospheric particles.  She has published over 90 papers in the peer-reviewed literature. Colette is currently a member of the Advisory Committee on Geosciences for the National Science Foundation, the GEOS-Chem model Steering Committee, the Science Community Committee for NASA’s ACCP mission, and an elected representative of the Atmospheric & Hydrospheric Sciences Section of AAAS. In 2015, she was awarded the James B. Macelwane Medal for early career contributions to the geosciences. She is a Fellow of the American Geophysical Union.

Keynote Presentation: How Reactive Organic Carbon Fuels Atmospheric Chemistry

Daniel Jacob

Professor, Harvard University

Daniel J. Jacob is Professor of Atmospheric Chemistry at Harvard University. He received his Ph.D. from Caltech in 1985. His research covers a range of topics from air quality to climate change and biogeochemical cycles. He leads the GEOS-Chem global model community, has led eight NASA aircraft missions, and serves on satellite science teams. Among his honors are the ECMWF Fellowship (2016), the NASA Distinguished Public Service Medal (2003), the AGU Macelwane Medal (1994) and the Packard Fellowship (1989). Jacob has 458 peer-reviewed publications and an h-index of 124 according to the Web of Science (156 according to Google Scholar). He has trained over 100 Ph.D. students and postdocs over the course of his career. He is author of the textbook Introduction to Atmospheric Chemistry (1999) and co-author with Guy Brasseur of the textbook Modeling of Atmospheric Chemistry (2017).

Principal Presentation Title: GEOS-Chem as a community model for air quality on urban to global scales in the satellite era

Lyatt Jaeglé

Professor, University of Washington

Professor Lyatt Jaeglé joined the Department of Atmospheric Sciences at University of Washington in 2000. She obtained her Ph.D. in Environmental Engineering Sciences from the California Institute of Technology in 1996 and was a postdoctoral fellow at Harvard University between 1996-2000. Her work focuses on examining how human activity – from automobile exhaust, power plants, industry, agriculture – affects surface air quality over populated regions. She is also interested in how these pollutants are spreading in the atmosphere to reach downwind continents and remote regions such as the Arctic. In order to address these research questions, she uses global chemical transport models to analyze ground-based, ship, aircraft, and satellite observations.

Principal Presentation Title: The Influence of Chemical Feedbacks on Wintertime Air Quality’s Response to Emissions Reductions

Leif Jahn

Postdoctoral Research Associate, University of Texas at Austin

PhD Chemistry, Carnegie Mellon University

Principal Presentation Title: Chlorine radical oxidation of alkanes: effects of structural branching, NOx, and relative humidity

Christopher Jernigan

PhD Canidate, University of Wisconsin - Madison

B.S Chemistry Duke University (2017), UW-Madison Chemistry PhD Candidate (2017 - Present)

Principal Presentation Title: Mechanisms and yields of OCS from the low NOx oxidation of dimethyl sulfide

Shira Joudan

Postdoc, York University

Shira Joudan received her PhD in environmental chemistry from the University of Toronto in September 2020, and is now a postdoc at York University. Her PhD work, part of which will be presented here, focused on environmental reactions of highly fluorinated anthropogenic chemicals known as PFAS. This work was diverse, spanning from rat metabolism, to microbial degradation, and of course, atmospheric oxidation. Prior to her PhD, she received an undergraduate in chemistry from Carleton University in Ottawa, and was a research assistant at the University of Winnipeg, studying emerging organic pollutants in natural waters. Outside of research, Shira enjoys teaching, good food, and canoeing,

Principal Presentation Title: Atmospheric fate of a new polyfluoroalkyl building block, C3F7OCHFCF2SCH2CH2OH

Ajith Kaduwela 

Senior Scientist ‐ California Air Resources Board/University of California at Davis

Ajith's research interests include atmospheric photochemical mechanisms, air quality modeling, climate change, low‐cost air sensors, indoor air quality, air‐quality management in developing countries, photoelectron spectroscopy, and youth STEM education.  He has an earned Ph.D. in chemical physics. He has taught an upper-division undergraduate course in atmospheric chemistry/physics (ERS 131, Air as a Resource) and is the lead instructor for the AAH Capstone Course (ATM280A&B, Air Quality Policy) together with Professors Cort Anastasio and Anthony Wexler.

ModeratorCurrent Atmospheric Chemical Mechanisms TrainingThe Future of Atmospheric Chemical Mechanism Development: A Panel Discussion of Possible Forward Paths

Makoto Kelp

Graduate Student, Harvard University

Makoto Kelp is a third-year Ph.D. student working with Prof. Daniel Jacob in the Atmospheric Chemistry Modeling Group at Harvard University. The main goal of his current research is to use a machine learning framework to emulate the coupled, nonlinear differential equations found in atmospheric chemistry mechanisms for purposes of computational speedup and implementation into chemical transport models and Earth System Models, with additional applications for chemical data assimilation and short-term forecasting.

Lightning Talk Title: A recursive neural network chemical solver for fast long-term global simulations of atmospheric composition

Fatemeh Keshavarz

Postdoc researcher, Institute for Atmospheric and Earth System Research, Faculty of Science, University of Helsinki, FI-00014, Finland

I have a background on modeling of biological systems. I hold a PhD degree in Physical Chemistry from Shiraz University, Iran, with special emphasis on kinetics of atmospheric reactions. Currently, I work as a postdoc researcher at Helsinki University working on quantum chemical modeling of atmospheric aerosols and the corresponding reactions. The presented abstract is a link between my biological research background and my current filed of work.

Principal Presentation Title: Molecular mechanisms behind the health impacts of several organic aerosol components

Michael Kleeman

Professor, UC Davis

Michael Kleeman is a Professor of Civil and Environmental Engineering at UC Davis. His research interests include all aspects of urban and regional air quality spanning measurements, development of chemical transport models, and application of those models to predict exposure fields for epidemiology. Professor Kleeman's current research focus includes topics at the interface of air-climate-energy with a focus on atmospheric chemistry and ultrafine particles.

Principal Presentation Title: How Much Further Do NOx Emissions Need to Decrease Before We Achieve Ozone Benefits in California?

Keith Kuwata

Professor and Chair of Chemistry, Macalester College

Keith Kuwata is Professor and Chair of the Chemistry Department at Macalester College, where he has taught since 2000. His work at Macalester with 56 undergraduate researchers has primarily revolved around the use of quantum chemistry and statistical rate theory to model hydrocarbon oxidation reactions in the atmosphere, high-resolution spectra of transition metal diatomic molecules, and reactions of peroxy species relevant to organic synthesis. Prior to coming to Macalester, Keith did a post-doctoral fellowship at UCLA with K. N. Houk and Suzanne Paulson, where he began his journey of using computation to model alkene ozonolysis reactions as non-photochemical tropospheric OH sources. He earned a BS in Chemistry from Harvey Mudd College and a PhD in Chemistry at Caltech under the supervision of Mitchio Okumura, using both IR cluster ion spectroscopy and quantum chemistry to probe halide-water interactions relevant to stratospheric ozone depletion.

Lightning Talk Title: Novel reactions and treatments of atmospheric peroxides

Victor Lannuque

Postdoctoral researcher, CEREA, Joint laboratory École des Ponts ParisTech and EdF R&D, Marne la Vallée, France

Graduate of a PhD. in Environmental Sciences and Techniques of the Paris-Est University since December 2017, my research activities during my thesis were mainly focused on the modeling of atmospheric chemistry, and the improvement of secondary organic aerosol (SOA) formation in chemistry-transport models. After this work realized at the Interuniversity Laboratory for Atmospheric Systems (LISA) and INERIS, I worked a year as postdoctoral researcher at Laboratoire d'Aérologie in Toulouse on the characterization of ozone and carbon monoxide measured by the IAGOS monitoring system. I am now postdoctoral researcher at CEREA laboratory, working on the modeling of the chemistry of organic compounds emitted by Euro 5 and 6 vehicles and the SOA formation which results from it.

Lightning Talk Title: Mechanical study of toluene oxidation: development of a simplified chemical scheme for SOA formation

James Lee

Research Professor, University of York

Atmospheric chemist specialising in oxidation chemistry in the atmosphere and measurements of air pollutants. Recently I have led the development of techniques to directly measure the emissions of air pollutants in order to validate national and international emission estimates. I have led work on measuring NOx and CO emissions in London, Beijing and Delhi. I have 15 years of experience in coordinating large measurement intensive field campaigns, both ground and aircraft based and I have and have led projects in Borneo, Canada, Uganda, Zambia and Cape Verde. I coordinate the NOx measurements at the Cape Verde Observatory and represents the UK on European and WMO expert groups on the subject. I leads the aircraft measurements on the NERC LTS-M ACSIS (North Atlantic Climate System Integrated Study) project. My most recent work has been on the effect of the COVID19 lockdowns on air pollution in the UK.

Principal Presentation Title: UK surface NO2 levels dropped by 42% during the COVID-19 lockdown: impact on surface O3

Ke Li

Postdoc, Harvard University

Ke a postdoc working with Prof. Daniel J. Jacob in Harvard Atmospheric Chemistry Modeling Group. His research interests include atmospheric chemistry, climate change, and environmental solutions. Currently, Ke is mainly working on surface ozone issues. Ke obtained Ph.D. degree from University of Chinese Academy of Sciences (UCAS), Beijing. His Ph.D. research focused on understanding particulate matter pollution in China, using chemical transport model, climate model, and statistical methods. Ke also worked on climate change as a visiting graduate student for about one year at CSIRO, Melbourne. Ke finished college study in atmospheric sciences at Nanjing University of Information Science & Technology, Nanjing.

Principal Presentation Title: Ozone pollution in the North China Plain spreading into the late-winter haze season

Yutong Liang

Graduate Student, UC Berkeley

Yutong Liang is a graduate student in Allen Goldstein's Lab in Department of Environmental Science, Policy and Management at UC Berkeley. He studies the emission and transformation of wildfire organic gases and particles.

Principal Presentation Title: Organic Chemical Composition of Gases and Particles Measured During the October 2017 Northern California Wildfire Plumes

Meiyun Lin

Research Scholar, Princeton University Program in Atmospheric and Oceanic Sciences and NOAA Geophysical Fluid Dynamics Laboratory

Meiyun Lin is a Research Scholar (with tenure) at NOAA Geophysical Fluid Dynamics Laboratory and Princeton University’s Cooperative Institute for Modeling the Earth System. Lin’s research seeks to advance knowledge on the interactions of air quality with weather and climate to inform public policy. Specifically, her current research focuses on the air quality-climate interactions via land-biosphere feedbacks, such as from reductions in pollution removal by drought-stressed vegetation and from increases in biogenic and wildfire emissions. She also examines how climate variability and change modulates intercontinental pollution transport, intrusions of stratospheric ozone deep into the troposphere, and their impacts on surface air quality extremes and trends. Lin earned her Ph.D. from the University of Tokyo (2008) and completed her postdoctoral work at the University of Wisconsin-Madison (2008-2010). Her research has led to a stream of highly cited publications, including three first-authored articles in Nature-branded journals. Read more at

Principal Presentation Title: How vegetation feedbacks during drought worsen ozone air pollution extremes in Europe, North America and Asia

Michael MacKinnon

Senior Research Scientist, Advanced Power and Energy Program, UC Irvine

I am a Senior Research Scientist and manager at the Advanced Power and Energy Program at the University of California, Irvine. My research is focused on the use of atmospheric modeling to provide insights into the air quality and human health impacts of integrating alternative technologies and fuels within energy systems.

Principal Presentation Title: Comparing the Air Quality Impacts of Electrification and Gaseous Renewable Fuels

Sasha Madronich

Senior Scientist (emeritus), NCAR

Dr. Madronich has contributed to studies of atmospheric chemistry with emphasis on molecular-scale photo-induced processes, radiative transfer, and radical budgets.

Principal Presentation Title: Structure-Activity Relations for Organic Photo-processes, Part 1: Absorption Cross Sections

Alfred Mayhew

PhD Student, University of York

Alfred Mayhew is a second year PhD student at the Wolfson Atmospheric Chemistry Laboratories (WACL), University of York. The focus of his work is the oxidation of isoprene by the nitrate radical, specifically focussing on the formation and growth of secondary organic aerosol particles.

Lightning Talk Title: Mechanistic Insights into the Night-time Chemistry of Isoprene

Max McGillen

Research scientist, ICARE, Centre national de la recherche scientifique

Max McGillen is an atmospheric chemist with a penchant for observations, mostly in the laboratory (and sometimes in the field). Max has held positions in the UK, the USA and France. On his travels, Max gained experience in a wide variety of experimental techniques. The focus of Max’ studies is on gas-phase reactivity and photochemistry using whatever methods are available: spectroscopic, mass spectrometric or chromatographic; direct or indirect; absolute or relative. In addition, Max maintains a strong interest in structure-activity relationships, data collation and evaluation.

Principal Presentation Title: A new database for the kinetics of the gas-phase atmospheric reactions of organic compounds

Kristian H. Møller

Postdoc, Department of Chemistry, University of Copenhagen

Kristian received his B.Sc., M.Sc. and Ph.D. at the Department of Chemistry, University of Copenhagen, where he is currently employed as a postdoc.

Principal Presentation Title: Atmospheric Autoxidation of Amines

Ugo Molteni

Postdoc, Department of Chemistry, University of Milan, 20133 Milan, Italy. ETH Zurich Institute for Atmospheric and Climate Science, ETH Zurich, 8092 Zurich, Switzerland

University of Milan, ETH Zurich

Lightning Talk Title: Molecular understanding of biogenic volatile organic compound emissions and their atmospheric oxidation products as function of climate change-induced stress on plants

Koushik Mondal

Senior Research Fellow, Indian Association for the Cultivation of Science

Currently PhD student at Indian Association for the Cultivation of Science year 2015-now. M.Sc in Chemistry year 2015 B.Sc in Chemistry year 2013

Principal Presentation Title: A new mechanstic overview for the removal of phenolic substituent from atmosphere in dark phase and its atmospheric importance.

Clare Murphy (Paton-Walsh)

Professor, University of Wollongong

Professor of Atmospheric Chemistry, University of Wollongong, 2019 -Present Director, Centre for Atmospheric Chemistry, University of Wollongong, 2016 – Present Theme Lead Air Quality, NESP Clean Air and Urban Landscapes Hub (CAUL), 2018 – Present

Principal Presentation Title: The chemical composition of Australian bushfire smoke and implications for population exposure during the 2019/2020 black summer bushfire crisis.

Nanna Myllys

Postdoc, UC Irvine

Nanna obtained a PhD from the University of Helsinki and is currently a postdoc at the University of California, Irvine. Nanna is a theoretical chemist studying clustering, reaction mechanisms and particle properties. Main research focus on the development of a reactive cluster formation and growth model based on first principles.

Lightning Talk Title: Oxidized Amines Enhance Particle Formation More Than Amines

Mike Newland

Post-doctoral Researcher, University of York

Mike Newland is a post-doctoral researcher at the University of York. His recent research has focused on alkene ozonolysis and the atmospheric chemistry of aromatic compounds.

Principal Presentation Title: Towards a full representation of alkene ozonolysis for atmospheric chemistry modeling

Julie Nicely

Assistant Research Scientist, U. of Maryland/NASA GSFC

Julie Nicely studies tropospheric gas phase chemistry as it relates to climate, composition, and air quality with a focus on oxidation chemistry. She has used a variety of machine learning, empirical, and box model techniques in combination with airborne and satellite observations to interrogate global chemistry-climate models and underlying chemical processes. She obtained her PhD in Chemistry from the University of Maryland in 2016.

Lightning Talk Title: A diagnostic package to facilitate and enhance chemical mechanism implementations within regional and global atmospheric chemistry models

Seyed Danial Nodeh Farahani

Graduate Student, York University

M.Sc. student in atmospheric chemistry

Lightning Talk Title: A boron dipyrromethene (BODIPY) based probe for selective passive sampling of atmospheric HONO indoors

Anna Novelli

Dr, Institute for Energy and Climate Research, Forschungszentrum Jülich

Research scientist at the Institute for Energy and Climate Research: Troposphere at the Forschungszentrum Jülich, Germany. Research interest centers on the investigation of chemical mechanisms with chamber studies to improve the knowledge on how trace gases are transformed. Strong focus on the role of radicals and their measurements.

Principal Presentation Title: Experimental and theoretical study on the impact of a nitrate group on the chemistry of alkoxy radicals

Lavinia Onel

Research fellow, School of Chemistry, University of Leeds

Lavinia Onel received her PhD. from the University of Iasi, Romania. Her thesis was the result of a collaboration that she initiated with Budapest University of Technology and Economics, Hungary. Since 2011 she has carried out postdoctoral research at the University of Leeds, UK. Her research has been focused on: kinetic studies of atmospheric representative reactions of Criegee intermediates using time-resolved broadband UV absorption spectroscopy, development of a laser induced fluorescence method for the selective detection of RO2 radicals and application of the new method in kinetic studies of RO2 reactions and studies of the kinetics and mechanisms of the atmospheric reactions of amines relevant for Carbon Capture and Storage and their potential atmospheric impacts.

Principal Presentation Title: Direct measurements of the kinetics of the reactions between the Criegee intermediates CH2OO and CH3CHOO and SO2

Victória Peli

Master of Science, IAG/USP

Bachelor of Meteorology (2016) and Master of Science (Program of Meteorology, 2019) on the Institute of Astronomy, Geophysics and Atmospheric Sciences of University of São Paulo (IAG/USP). In my scientific initiation, I developed a research about fine Particulate Matter (PM2.5) on Vale do Paraíba, São Paulo. As a master’s degree student, my research was about the PM physical and chemical composition and its relationship with meteorological variables on Metropolitan Area of São Paulo. Nowadays, I am on the stage of write a research project to enroll on IAG/USP’s Program of Meteorology as a PhD student.

Lightning Talk Title: Particulate Matter (PM) chemical composition in different size fractions on Metropolitan Area of São Paulo (MASP)

Zhe Peng

Research Scientist, University of Colorado Boulder

Zhe Peng is a Research Scientist at the Cooperative Institute for Research in Environmental Sciences (CIRES) and Department of Chemistry, University of Colorado Boulder. He received PhD from Universite´ Paris-Sud, France in Physical Chemistry. Since 2014, he has been working in the group of Prof. Jose-Luis Jimenez at CIRES. His current interests include modeling of volatile organic compound oxidation and aerosol formation in both the atmosphere and laboratory experiments.

Principal Presentation Title: Evolution of OH reactivity in low-NO volatile organic compound photooxidation investigated by the fully explicit GECKO-A model

Jaqueline Pereira

Master student, Universidade Federal de Lavras

I am Environmental Engineer graduate and I am currently a master's student in the Environmental Engineering course, focusing on the research line Climate Change, Energy and Air Pollution, by the Universidade Federal de Lavras in the Brasil. I study the monitoring of atmospheric deposition in Lavras since 2017 and I am also a member of the Núcleo de Estudos de Poluição Urbana e Agroindustrial (NEP UAI), in which develop projects related to air quality monitoring and the greenhouse effect inventories.

Lightning Talk Title: Precipitation Chemistry in a Brazilian Rural Area: Alkaline Species Behaviour and Agricultural Inputs

Simone Pieber

Postdoctoral Scientist, Empa

Postdoctoral Scientist at Empa; PhD from ETH Zurich in Atmospheric Chemistry

Lightning Talk Title: Trace gases and organic aerosol at a rural site in Vietnam during large scale biomass burning

Lekan Popoola

Research Associate, University of Cambridge

Dr Popoola has over 11 years of experience research in air pollution monitoring, data interpretation and application of new analysis techniques. He holds a Doctorate degree in Chemistry (atmospheric science) from the University of Cambridge and is part of team at the University of Cambridge that pioneered the use of low-cost sensors for ambient air quality monitoring and human health application. This research has revolutionized our understanding of air pollution by facilitating the development of hyperlocal air quality measurement both for ambient and personal exposure. Olalekan utilise measurements from conventional air quality platforms as well as data from low-cost devices in the interpretation of air quality and has been involved in the application of air quality models in quantifying emission fluxes and inventories. He has been involved in several international research collaborations in Europe (UK, Spain, Sweden, Italy), Asia (China, Bangladesh), USA and Africa (Kenya, Nigeria). He currently has been working on the Breathe-London project (

Principal Presentation Title: Low-cost sensor platform: an emerging tool for air quality studies

Zhonghua Ren

PhD candidate, University of Melbourne

I am currently a PhD candidate in Chemical Engineering at the University of Melbourne and my research interest is using theoretical and computational methods to investigate the atmospheric degradation of hetero-atom containing volatile organic compounds.

Lightning Talk Title: Auto-Oxidation Mechanisms of Volatile Silicon Compounds in the Atmosphere

Matti Rissanen

Asst. Prof., Tampere University

Matti Rissanen received his M.Sc. (Honours) in 2007 and Ph.D. (Distinction) in 2012 in physical chemistry from the University of Helsinki Chemistry Department. The studies included gas-phase kinetics of small hydrocarbon free radical reactions relevant for combustion and atmospheric chemistry environments. Since then he has worked as a postdoctoral research fellow in the Physics Department of the University of Helsinki, and more recently, in the INAR institute. As of 2019, he started as a tenure track assistant professor of experimental aerosol science in Tampere University Physics Unit. Currently, he leads a five people research group focusing on experimental and theoretical characterisation of fast radical reactions critical for pollutant formation, and removal, from the ambient gas media. He is an author of more than 70 research papers in reputed scientific journals mainly concerning radical reaction kinetics and mechanisms relevant for atmospheric and combustion chemistry, currently tackling the formation of in-situ aerosol precursors from ambient oxidation processes.

Principal Presentation Title: Oxidation of anthropogenic hydrocarbons – “unimolecular” autoxidation vs sequential ageing

Manon Rocco

PhD Student, LaMP

I'm Manon Rocco. I'm in 3rd year PhD student in Atmospheric Sciences at the Clermont Auvergne University (France). I'm currently working on VOC sources and emissions, atmospheric chemistry and dynamics from rural, urban and marine environments.

Lightning Talk Title: Characterization of reactive gases during BIO-MAIDO campaign along the Maïdo slope on Indian Ocean tropical island (Reunion Island)

Saptarshi Sarkar


I am currently a PhD student in Malaviya National Institute of Technology Jaipur. My focus is to theoretically investigate the role of ammonia in the atmospheric chemistry of oxygenated volatile organic compounds. I am also working on the oxidizing capability of singlet molecular oxygen in troposphere and the role of singlet in the atmospheric fate of various oxygenated volatile organic compounds. Before joining MNIT Jaipur, I did my master degree in physical chemistry from Acharya Prafulla Chandra College (West Bengal State University) in 2015. My master thesis was focusing on the semi-empirical treatment of conjugated polyene through Huckel π –molecular orbital method. I obtained the B.Sc. Hons. Degree in West Bengal State University in the year 2013.

Principal Presentation Title: Singlet (1Δg) O2 as an efficient tropospheric oxidizing agent: the gas phase reaction with the simplest Criegee intermediate

Lightning Presentation Title: Ammonolysis of ketene as a potential secondary source of tropospheric acetamide: a theoretical investigation

Emily Saunders

Chemist, Howard University

Emily is a chemist (fate scientist) apart of the Environmental Protection Agency in the Office of Pesticide Program, Antimicrobial Division, apart Risk Assessment and Science Support Branch. At the EPA she interprets, evaluates, analyzes, and synthesizes scientific data and other information for the development of human health and/or environmental assessments on the effects of pesticides from both hazard/toxicology and exposure studies. She graduated with her PhD. in Chemistry from Howard University in 2017. Her dissertation research topics include the effect of climate change on ozone air pollution and its human health effects. After graduating from Howard University she became a senior research scientist at NASA Goddard apart of the Global Modeling and Assimilation office. Her research there consisted of the following: applications of GEOS model to study regional and global community health impacts due to toxic air pollutants, computer modeling of air pollutant emission, transformation, transport and deposition on scales that range from urban to global regions, research in public health and how individuals pre-existing conditions (i.e. respiratory illness, heart disease, etc.) makes them more vulnerable to poor air quality. Later, she spent some time at Howard University as an adjunct lecturer teaching General Chemistry lab courses. She has contributed to peer-reviewed publications on tropospheric atmospheric chemistry, gas phase chemical mechanisms and the effect of climate change on air quality.

Principal Presentation Title: GACM: Global Atmospheric Chemical Mechanism

Rebecca Schwantes

Research Scientist, CIRES/NOAA/NCAR

Rebecca Schwantes is a research scientist at the Cooperative Institute for Research in Environmental Sciences (CIRES) and National Oceanic and Atmospheric Administration (NOAA) in the Chemical Sciences Laboratory in Boulder, CO. Her research focuses on the development of reduced chemical mechanisms for use in regional and global atmospheric chemistry models to improve the simulation of air pollutants such as ozone and secondary organic aerosol. Prior, she received her PhD in Environmental Science and Engineering from the California Institute of Technology and was a Postdoctoral Fellow/Project Scientist at the National Center for Atmospheric Research (NCAR).

Principal Presentation Title: The Importance of More Complex Isoprene and Terpene Chemistry for Simulating Surface Ozone in the Southeastern U.S. at Varying Horizontal Resolutions

Sam Silva

Postdoctoral Fellow, Pacific Northwest National Laboratory

Sam Silva is a Linus Pauling Distinguished Postdoctoral Fellow at the Pacific Northwest National Laboratory.

Principal Presentation Title: Graph Theory and Atmospheric Chemistry

Heather Simon

Physical Scientist, US EPA

Dr. Simon is a physical scientist in the US EPA’s Office of Air Quality Planning & Standards where she performs photochemical modeling and ambient air quality data analysis to support national air pollution regulatory efforts. Some of her technical interests include atmospheric chemistry, ambient ozone trends, ozone impacts on human health and ecosystems, ClNO2 chemistry, organic aerosols, emissions inventories and PM2.5 speciation. Dr. Simon received a BS in Earth Systems from Stanford University and MSE and PhD degrees in Environmental Engineering from the University of Texas at Austin.

Principal Presentation Title: The Future of Atmospheric Chemical Mechanism Development: A Panel Discussion of Possible Forward Paths

Christopher Tessum

Assistant Professor, University of Illinois

Dr. Christopher Tessum joined the CEE department as an Assistant Professor in January 2020. His research focuses on modeling air pollution and its health impacts, quantifying inequities in the distribution of those impacts, and proposing and testing solutions. He studies the relationships between emissions, the human activities that cause them, and the resulting health impacts, and he develops modeling capabilities to enable these types of analyses. Before joining UIUC, Dr. Tessum was a research scientist in the Department of Civil and Environmental Engineering at the University of Washington in Seattle and a postdoctoral researcher in the Department of Bioproducts and Biosystems Engineering at the University of Minnesota. He received a Ph.D. (2014) in Civil, Environmental and Geo- Engineering, and a B.M.E. in Mechanical Engineering (2006), from the University of Minnesota.

Principal Presentation Title: Kinetic neural networks for atmospheric chemistry surrogate modeling

Marina Vance

Assistant Professor, University of Colorado Boulder

Dr. Marina Vance is an Assistant Professor of Mechanical Engineering and Environmental Engineering at the University of Colorado Boulder. Her research is focuses on understanding and minimizing human exposure to environmental contaminants, especially aerosols emitted during everyday activities. Before joining CU Boulder, she was the Associate Director of the Virginia Tech Center for Sustainable Nanotechnology (VTSuN) and Deputy Director of the VT National Center for Earth and Environmental Nanotechnology Infrastructure (NanoEarth). Dr. Vance received her Ph.D. in Civil and Environmental Engineering from Virginia Tech in 2012 for studying the release of nanomaterials from the use of everyday consumer products. She received her bachelor’s and master’s degrees in Environmental Engineering from the Universidade Federal de Santa Catarina (Brazil).

Principal Presentation Title: Indoor aerosol dynamics during cooking and cleaning activities: Insights from the HOMEChem study

Michael Vansco

Postdoc, University of Pennsylvania

B.S. Chemistry (University of Rhode Island) Ph.D. Chemistry (University of Pennsylvania)

Principal Presentation Title: Formic Acid Catalyzed Isomerization and Adduct Formation of an Isoprene-Derived Criegee Intermediate: Experiment and Theory

Luc Vereecken

Dr., Forschungszentrum Jülich GmbH

After earning my PhD at the University of Leuven, Belgium, I stayed in at that university for another 10 years as a scientific collaborator. After that, I worked for 5 years at the Max Planck Institute for Chemistry in Mainz, Germany, followed by an appointment at the Forschungszentrum Jülich, Germany, My main research topics are the oxidation processes of organic compounds in the troposphere, which I study using theoretical methodologies.

Principal Presentation Title: Theory-based structure-activity relationships

Liming Wang

Professor, School of Chemistry & Chemical Engineering, South China University of Technology

Liming Wang received his PhD degree from UC Riverside with Prof. Jingsong Zhang. After postdoctoring with Prof. MC Lin at Emory University and Prof. MJ Pilling at Leeds University, he joined South China University of Technology at 2005. He is now a professor in Chemistry. His research activity mainly focuses on atmospheric oxidation mechanism of VOCs and degradation of pollutants in aqueous phase.

Principal Presentation Title(CANCELLED): Effect of Water Vapor on Oxidation of Aromatic Compounds*
*This presentation did not take place as scheduled and was not a part of the 2020 ACM Conference.

Tao Wang

Chair Professor, Hong Kong Polytechnic University

WANG Tao is a Chair Professor of Atmospheric Environment at the Hong Kong Polytechnic University (PolyU). He received PhD from Georgia Institute of Technology in 1992 and did postdoc research at the University of Michigan (Ann Arbor). His research interest includes the chemistry of natural and polluted atmosphere, air pollution-cloud interactions, urban and regional air quality management. He has been the coordinator of several large research projects funded by Hong Kong Research Grants Council’s Theme-based scheme and Collaborative Research Scheme and by Hong Kong Environment Conservation Fund. He was the Chief Scientist for a China’s National Basic Research Project on acid rain (2005-2010), and served on the Scientific Steering Committee the International Global Atmospheric Chemistry Project (IGAC, 2013-2017) and as an Associate Editor of Journal of Geophysical Research-Atmosphere (2008-2017). He is currently a vice chair of the Atmospheric Composition Commission of China Meteorological Society and of the Atmospheric Environment Commission of China Environmental Society, a Founding Fellow of the Hong Kong Institute of Qualified Environmental Professionals, a scientific advisor of the Hong Kong Observatory. He has published over 200 papers in international journals and was a recipient of PolyU President’s Awards for Excellent Performance/Achievement in Research and Scholarly Activities in 2018.

Principal Presentation Title: Persistent heavy winter nitrate pollution driven by increased photochemical oxidants in northern China

James Weber

PhD Student, Univeristy of Cambridge

PhD student in Centre for Atmospheric Science, Department of Chemistry, University of Cambridge, Undergraduate and Masters in Chemistry

Principal Presentation Title: CRI-HOM: A novel chemical mechanism for simulating Highly Oxygenated Organic Molecules (HOMs) in global chemistry-aerosol-climate models

Principal Presentation Title: Minimal climate impacts from short-lived climate forcers following emission reductions related to the COVID-19 pandemic

Lisa Whalley

Senior Researcher, NCAS, University of Leeds

Lisa has been a National Centre for Atmospheric Science (NCAS) Research Fellow at the University of Leeds since 2005 with the responsibility for the development and operation of the FAGE instrument for ground-based measurements of OH, HO2, RO2 and OH reactivity and has participated in many field campaigns, including the NERC-Newton funded APHH project. She is experienced in running detailed chemistry box models using the MCM for comparison to field measurements.

Principal Presentation Title: Evaluating the sensitivity of radical chemistry and ozone formation to ambient VOCs and NOx in Beijing

Caroline Womack

Research Scientist, CIRES/NOAA CSL

Caroline (Carrie) Womack is a research scientist at the Cooperative Institute for Research in the Environmental Sciences (CIRES) at the University of Colorado, Boulder, working in the NOAA Chemical Sciences Laboratory. Her research interests include the formation processes of ozone and particulate matter in urban and wintertime regions, cavity-enhanced spectroscopy of gas-phase species, and aerosol optical properties. She has recently participated in the 2019 FIREX-AQ, 2017 UWFPS, and 2016 Fire Lab campaigns. She received her PhD in physical chemistry from the University of Chicago.

Principal Presentation Title: An odd oxygen framework for assessing NOx and VOC emission controls to reduce wintertime ammonium nitrate pollution

Yuanyu Xie

Postdoc, Princeton University

Yuanyu Xie is currently a postdoctoral research scholar at the program of Atmospheric and Oceanic Sciences at Princeton University and NOAA Geophysical Fluid Dynamics Laboratory. She is working with Dr. Meiyun Lin ( on the impacts of wildfires on fine particulate pollution extremes in present and future climate. She is also interested in understanding the linkage between climate change, land-biosphere feedbacks and surface air pollution. Xie earned her Ph.D. from Tsinghua University (2018) where she studied the impact of climate change on ozone and aerosol concentrations, with a specific focus on drought conditions; evaluate climate-chemistry and chemical transport models in simulating the response of ozone and aerosol to drought; pollution monitoring using high-resolution satellite retrievals, and assessments of population exposure.

Principal Presentation Title: Summer PM2.5 pollution extremes caused by wildfires over the western United States during 2017–2018

Lu Xu

Staff Scientist, California Institute of Technology

Lu Xu obtained his Ph.D. in August 2016 at the Georgia Institute of Technology, under the supervision of Professor Nga Lee Ng. Following his PhD, he worked as a postdoctoral fellow and then a staff scientist at the California Institute of Technology under the supervision of Professor Paul Wennberg. His current research focuses on elucidating the fundamental oxidation mechanism of volatile organic compounds in the atmosphere.

Principal Presentation Title: New Insights into the Radical Chemistry and Product Distribution in the OH-initiated Benzene Oxidation

Greg Yarwood

Principal, Ramboll

Dr. Greg Yarwood holds a PhD in chemistry from Cambridge University and has over 25 years of experience in atmospheric chemistry, air quality modeling, photochemical model development, interpreting ambient air quality data, and emissions inventory development. Greg oversees development of Ramboll’s Comprehensive Air quality Model with extensions (CAMx: 3D photochemical grid model and he implemented methods for source attribution (OSAT/PSAT), sensitivity analysis (DDM) and process analysis in CAMx. He now leads development of the Carbon Bond chemical mechanisms (including CB05 and CB6) that are used to model ozone and PM in both CAMx and USEPA’s CMAQ model. He has guided international air quality studies in Europe, the Middle East, Asia, Australia and Africa. In the US, Greg advises regional, state and local planning agencies as they develop and implement plans to address air quality (non-attainment) issues. He is experienced in communicating on air quality matters in settings that range from international scientific conferences to local meetings with diverse audiences. His publication record has an H-index of 39. Greg was appointed to USEPA’s Board of Scientific Counselors for the Clean Air Research Program.

Principal Presentation Title: Current Atmospheric Chemical Mechanisms TrainingThe Future of Atmospheric Chemical Mechanism Development: A Panel Discussion of Possible Forward Paths

Cora Young

Associate Professor, York University

Dr. Cora Young is the Guy Warwick Rogers Chair in Chemistry and as associate professor at York University in Toronto, Canada. She completed her undergraduate and doctoral studies at the University of Toronto and a postdoctoral fellowship at the National Oceanic and Atmospheric Administration in Boulder, Colorado. Her research focuses on the development and application of new analytical techniques to increase our understanding of issues regarding indoor and outdoor air quality, climate change, and long-distance pollutant transport. Her group uses in situ and offline instrumentation n both laboratory and field studies to elucidate the chemical mechanisms underlying these processes.

Principal Presentation Title: Chemistry of perfluoroalkyl substances (PFAS): Formation and fate of strong atmospheric acids

Bin Yuan

Professor, Jinan University

Bin Yuan graduated from Peking University, China, with Bachelor’s degrees in Environmental Sciences and Economics. He then received a Ph.D. in Environmental Sciences at Peking University with the honor of Excellent Doctoral Dissertation in 2012. Since then, he has continued his research at NOAA Earth System Research Laboratory (ESRL) in United States and at Paul Scherrer Institute (PSI) in Switzerland. He now works as a faculty member at the Institute for Environment and Climate Research (ECI) of Jinan University in Guangzhou, China. His research is focused on investigations of emissions and evolution of organic compounds as well as mass spectrometric techniques in detection of organic compounds in the atmosphere.

Principal Presentation Title: Emissions of Volatile Chemical Products (VCPs) in China: insights from estimation of emission inventory, measurements of emission sources and ambient air

Sebastian Zala

Undergraduate Master Student, ETH Zürich, Department of Environmental System Science

I finished my bachelors in 2018 in environmental engineering. After that I changed my study subject and started my masters in environmental system sciences. Here I'm currently at the institute of atmosphere and climate and I am pursuing my master thesis focusing on indoor air chemistry.

Lightning Talk Title: Indoor photochemistry: development of reference sensitizers for singlet oxygen quantum yield measurements

Rahul A. Zaveri

Senior Scientist, Atmospheric Sciences & Global Change Division, Pacific Northwest National Laboratory

Rahul is a Senior Scientist in the Atmospheric Sciences & Global Change Division of the Pacific Northwest National Laboratory since 1998. He has a wide range of research experience in investigating the fate of anthropogenic and biogenic trace gas and aerosol emissions and their effects on air quality and climate change. His current research focuses on secondary organic aerosol formation, aerosol growth dynamics, thermodynamics, mixing state, and their effects on optical and cloud condensation nuclei activation properties, with an overarching goal of improving model representations of these and related processes in regional and global climate models. Rahul has a BS from the University of Mumbai, a MS from the University of Kentucky, and a PhD from Virginia Tech, all in Chemical Engineering.

Principal Presentation Title: The Future of Atmospheric Chemical Mechanism Development: A Panel Discussion of Possible Forward Paths

Jingsong Zhang

Professor, University of California, Riverside

Jingsong Zhang is a Professor of Chemistry in the Department of Chemistry and Research Chemist at the Air Pollution Research Center at UC Riverside with research interests in physical, environmental, and analytical chemistry. Currently his group is studying the elementary processes of transient reactive intermediates, with an emphasis on atmospheric and combustion chemistry. This research aims to provide fundamental and quantitative understanding of free radicals in atmospheric chemistry and combustion. Jingsong Zhang holds a BS from the University of Science and Technology of China and a PhD from UC Berkeley. He was a Postdoctoral Fellow at the University of Southern California.

Principal Presentation Title: Direct measurements of vinoxy radicals and formaldehyde from ozonolysis of trans- and cis-2-butenes: Quantification of syn- and anti-conformers of Criegee intermediate and new insights into OH radical formation mechanism

Ran Zhao

Assistant Professor, University of Alberta

Ran Zhao obtained his PhD in chemistry at the University of Toronto under the supervision of Jonathan Abbatt. Following his PhD, he worked as an NSERC postdoctoral fellow at Caltech under the supervision of John Seinfeld and Paul Wennberg. He started his independent position as an assistant professor of chemistry at the University of Alberta in 2018.

Lightning Talk Title: Mechanistic Investigation of the Aqueous-Phase OH Oxidation of Pinic Acid