Presenter Biographies

Below are the biographies of all Poster and Podium Presenters for the 2019 IAMA Conference listed in alphabetical order.

Becky Alexander


Becky Alexander is a Professor and Associate Chair in the Department of Atmospheric Sciences at the University of Washington. Her research focuses on understanding how atmospheric oxidation reactions vary over space and time, and in particular to perturbations from changes in climate and human activities. Her main research tools are the measurement of the complete isotopic composition of sulfate and nitrate aerosols from atmospheric and ice core samples combined with global chemistry-climate modeling.

Session: Regional to Global Scale of Modeling of Aerosol

Title: Heterogeneous production of nitrate in extreme haze

David Bell


Scientist - Paul Scherrer Institute, Postdoc - Pacific Northwest National Laboratory, Ph.D University of Utah

Session: Single Particle to Box Model

Title: Probing the Volatility of α-Pinene SOA: From Molecular Composition to Bulk Volatility

Thomas Berkemeier

Research group leader

Thomas Berkemeier is a research group leader at Max Planck Institute for Chemistry, Mainz, Germany. His research interests include the mathematical description of multiphase processes in the atmosphere and the human body. His research team develops kinetic models and conducts laboratory experiments with the goal of understanding atmospherically- and health-relevant chemical and physical processes at and across interfaces. Special attention is given to oxidation chemistry, gas-particle partitioning and the implications of a viscous phase state.

Session: Single Particle to Box-Model

Title: Kinetic modelling of secondary organic aerosol (SOA) formation: connecting the data points

Bryan Berman

PhD student

• Name: Bryan Berman • Graduated with a B.S in Mathematics and Computer Science with Teaching from Temple University in Spring 2016 • Graduated with a M.S in Environmental Engineering in Spring 2019 from Drexel University. • Interested in atmospheric modeling, climate change, environmental policy, indoor air, and education

Session: Emerging Modelling Techniques

Title: ISORROPIA-MCX: Implementation of the Multicomplex Variable Method into the Aerosol Thermodynamic Model, ISORROPIA

Ian Crawford

Research Associate

My research background is historically in the field of cloud microphysics and cloud-aerosol interactions and within the last 5 years my portfolio has expanded to incorporate bioaerosol detection. Recent bioaerosol research has focused on the development of analysis tools to improve our capacity to classify and quantify broad taxonomic classes of bioaerosol in real-time, exploring the utility of unsupervised machine learning techniques to deliver high level data products to move towards this goal. These methods have been employed to deliver novel results, suggesting a potential recolonization pathway of the Antarctic biome from sparse bioaerosol detection events, and to also present the first UV-LIF derived multi-height bioaerosol emissions parameterisations and diurnal flux estimates from a semi-arid forest in the western USA. Current research investigates bioaerosol emissions across the UK, through contemporaneous airborne and ground based measurements utilising UV-LIF and traditional detection methods.

Session: New frontiers in Aerosol Sources: Beyond Mobile Emissions and Biogenics

Title: Appraisal of real-time bioaerosol detection techniques and classification algorithms

Jeffrey Curtis

Postdoctoral Research Associate

Jeffrey H Curtis is currently a Postdoctoral Research Associate at the University of Illinois at Urbana-Champaign. His research interests are Atmospheric Chemistry and applying numerical methods and high-performance computing to investigate aerosols. He currently focuses on particle-resolved model development to help address the climate uncertainties due to aerosol representation.

Session: Regional to Global Scale of Modeling of Aerosol

Title: Benchmarking aerosol models on the regional scale using a stochastic particle-resolved approach

Ann Dillner

Research Engineer

Ann M. Dillner is a Research Engineer with the Air Quality Research Center at the University of California Davis, a position she has held since 2005. Her current work focuses on measuring carbonaceous aerosols in filter based monitoring networks in the US and internationally. She holds a PhD from the University of Illinois and was an assistant professor at Arizona State University prior to beginning her work at UC Davis. Before attending graduate school, Dr. Dillner was an air quality consultant with Trinity Consultants in Dallas, Texas.

Session: Regional to Global Scale Modeling of Aerosol

Title: Trends in Organic Matter and Functional Groups from 2009 to 2016 in the Southeastern Aerosol Research and Characterization (SEARCH) Network


Jing Dou


2009-2013 Bachelor in Nanjing University, China; 2013-2015 Master in The Hong Kong University of Science and Technology; 2016-2019 PhD in ETH Zurich (defended in 17 June, 2019)

Session: Molecular to Single Particle

Title: Photochemical reaction and diffusion (PRAD) model: The influence of viscosity on photochemistry in single aerosol particles

Session: Molecular to Single Particle

Title: Vapor pressures of substituted naphthalenes derived from diffusion-controlled evaporation rates of single particles levitated in an electrodynamic balance.

Tommaso Galeazzo

Postdoctoral Research Scholar

Postdoctoral research scholar at University of California, Irvine. He completed his PhD “Tracking volcanic sulfate: modelling tropospheric volcanic sulfate production and its oxygen isotopic signatures” at Sorbonne University, Paris in 2018. Responsible for the development of sulfur and halogens heterogeneous chemistry, and the oxygen isotopes transfer schemes for tropospheric sulfate production in CiTTyCAT (a photochemical box model for atmospheric chemistry). Current investigations focus on SOA formation in the atmosphere and the prediction of particles phase state and viscosity impacts on SOA formation. Recent research interests cover the application of artificial intelligence to: surrogate model development for atmospheric processes parametrization, organic reactions prediction, and information extraction from atmospheric instrumental data. 

Poster Presentation Title: Explicit modelling of gas-phase chemistry and viscosity on secondary organic aerosol formation

Kyle Gorkowski

Postdoctoral Fellow

Kyle Gorkowski is a Fonds de Recherche du Québec – Nature et Technologies Postdoctoral Fellow at McGill University. His research includes aerosol fieldwork, aerosol optical tweezers measurements of liquid-liquid equilibrium, and development of equilibrium thermodynamic models.

Session: Emerging Modelling Techniques

Title: Trimming the Iterative Fat of Equilibrium Thermodynamic Models Using Neural Networks

David Hagan

Atmospheric Chemist & CEO

David is an atmospheric chemist and the CEO of QuantAQ. His research has primarily focused on developing algorithms and statistical methods for obtaining atmospherically relevant information from distributed networks of low-cost sensors. He obtained his B.A. in Chemical Physics from Hendrix College (2011), B.S. in Chemical Engineering from Washington University in St. Louis (2013), and his Ph.D. in Environmental Chemistry from the Massachusetts Institute of Technology in 2019.

Session: New frontiers in Aerosol Sources: Beyond Mobile Emissions and Biogenics

Title: Inferring aerosol sources using multi-pollutant, low-cost air quality sensors 

Lin He

Post Doc

Dr. Lin He is a post doc from the Leibniz Institute for Tropospheric Research (TROPOS) in Germany. He is now working on the multi-phase modelling of the atmospheric process of biomass buring tracers.

Poster Presentation Title: An atmospheric aqueous-phase kinetic and CARPAM modelling study of methoxyphenolic species from biomass burning

Anna Hodshire

Graduate Research Assistant

Anna Hodshire received a B.S. in Physics and Applied Math at Weber State University in 2009. She transitioned to Atmospheric Science at Colorado State University, receiving her M.S. in 2016 and will receive a PhD in 2020. As a graduate research assistant, her research focuses on modeling aerosol microphysical processes in a variety of environments, including within pine forests, grasslands, the remote upper troposphere, over oceans, and within smoke plumes from biomass burning.

Session: New frontiers in Aerosol Sources: Beyond Mobile Emissions and Biogenics

Title: Dilution impacts on aerosol aging in biomass burning plumes: using a novel coupled aerosol, chemistry and large-eddy simulation model to learn about the impacts of dilution rates and cross-plume concentration gradients on smoke aging

Christopher Holmes

Assistant Professor

Dr. Holmes's research examines the global cycles of air pollutants and greenhouse gases, and the interactions of both with climate change. His group builds and uses numerical models to understand chemical and physical processes that control the fate and impact of contaminants in the environment. These models are evaluated and improved using observations from surface monitoring networks, aircraft, and ships, as well as remote sensing from satellites and radar. Current research topics in his group include ozone interactions with the biosphere, air quality and climate impacts of biomass burning, multiscale modeling of atmospheric oxidants, and biogeochemical cycling of mercury. Dr. Holmes is an NSF CAREER awardee and a NASA New Investigator. He received a Ph.D. in Earth and Planetary Science from Harvard University (2010) and worked as a postdoctoral scholar at the University of California, Irvine until joining Florida State University in 2014.

Session: Regional to Global Scale of Modeling of Aerosol

Title: Heterogeneous cloud and aerosol chemistry in the tropospheric NOy cycle

Carey Jang

Environmental Scientist

Dr. Carey Jang serves as a national expert at U.S.EPA’s Office of Air Quality Planning and Standards (OAQPS). Dr. Jang has more than 20 years of experience on air pollution issues ranging from urban and regional air pollution, international transport of air pollution, to global climate change. Dr. Jang is currently leading an international team to develop an integrated air pollution control benefit/cost and attainment assessment system (ABaCAS). Dr. Jang has successfully coordinated seven consecutive international ABaCAS conferences and training workshops jointly with international scientists since 2013.

Session: Air Quality Modeling for Health and Regulatory Assessments

Title: Development and Applications of “Air Benefit and Cost and Attainment Assessment System” (ABaCAS)

Xiaomeng Jin

Graduate Student

Xiaomeng Jin is a fifth-year PhD student at Lamont-Doherty Earth Observatory of Columbia University. Her research focuses on satellite remote sensing of air pollution.

Session: Air Quality Modeling for Health and Regulatory Assessments

Title: Comparison of multiple PM2.5 exposure products for estimating health benefits of emission controls

James Kelly


Jim is an Environmental Scientist with the U.S. Environmental Protection Agency where he leads the Air Quality Assessment Division's PM NAAQS Review Team. Prior to this, he held positions at the California Air Resources Board, Lawrence Livermore National Laboratory, and the CIIT Centers for Health Research related to air quality modeling and particle dosimetry. Jim earned a PhD from UC Davis with a dissertation on water uptake by atmospheric particles.

Session: Air Quality Modeling for Health and Regulatory Assessments

Title: Projecting PM2.5 concentration fields to correspond to just meeting National Ambient Air Quality Standards

Mike Kleeman


Michael Kleeman is a Professor of Civil and Environmental Engineering at the University of California at Davis.  His research interests include measurement and modeling of urban and regional air pollution problems.  

Session: Air Quality Modeling for Health and Regulatory Assessments

Title: Predicted Ultrafine Particulate Matter Source Contribution across the Continental United States during Summer Time Air Pollution Events 

Anikender Kumar

Postdoctoral Researcher

Research Interests: Air pollution modeling, Air pollution meteorology and chemistry, Emission study, Source apportionment, Statistical and climate downscaling modeling. Education: Ph.D. Indian Institute of Technology Delhi, India. Thesis: Air quality forecasting using mathematical models for Delhi.  Master of Sciences: Applied Mathematics, Indian Institute of Technology Roorkee, India.

Poster Presentation Title: Wood smoke emissions and particulate matter formation in California

Pius Lee

Project leader for National AQ Forecasting

03/2011- present National Air Quality Forecasting Capability Project Leader 11/10/2014- present Affiliate Faculty of George Mason University, Center for Spatial Information Science and Systems EDUCATION: Ph.D., Toyohashi University of Tech., Japan (1993)

Session: Emerging Modelling Techniques

Title: Development of a NOAA Emissions and eXchange Unified System

Yiting Li

PhD student

Atmospheric Science PhD student in Department of Land, Air and Water Resource, University of California, Davis.

Session: Regional to Global Scale Modeling of Aerosol

Title: Impacts of Spatial Distribution and Spatial Resolution of Emissions on Air Quality Model

Anni Määttänen

Research Scientist

I am a Finnish research scientist and have been working in France for 11 years. Though a meteorologist by formation, I turned to stars very early, and ended up with a Master’s thesis and a Ph.D. thesis (2007) in the University of Helsinki, Finland, focused on modelling the atmosphere and cloud formation (ice nucleation) on Mars. I left Finland after my PhD for a post-doctoral fellowship in France, and concentrated on analysing cloud observations from the Mars Express satellite. I was hired as a permanent research scientist of the CNRS in 2009, which has allowed me to broaden my research to the clouds on Venus and to deepen our understanding on the formation processes of Martian and Venusian clouds through developing models of cloud microphysics and analysing satellite observations in a large international collaboration network.

Session: Molecular to Single Particle

Title: Improved parameterizations for neutral and ion-induced H2SO4-H2O particle formation

Brian McDonald

Research Scientist

Dr. McDonald is a research scientist at the Cooperative Institute of Research in Environmental Sciences (CIRES) at the University of Colorado working at the NOAA Earth System Research Laboratory in Boulder, CO. Prior to arriving in Colorado, he received his Ph.D. in Environmental Engineering and Master’s in Public Policy from the University of California, Berkeley. His expertise is on developing emission inventories of energy and urban systems, assessments of air quality trends, and regional air quality modeling.

Session: New frontiers in Aerosol Sources: Beyond Mobile Emissions and Biogenics

Title: Modeling Impacts on Secondary Organic Aerosol Formation from Volatile Chemical Products

Yu Morino

Senior Researcher

Yu MORINO is a senior researcher at the Center for Regional Environmental Research of the National Institute for Environmental Studies (NIES), Japan. He received his Ph. D. from the Department of Earth and Planetary Science, the University of Tokyo in 2007, and joined NIES since then. His research subject is numerical modeling of atmospheric pollutants, including organic aerosol, PM2.5, reactive nitrogen, and radioactive materials.

Session: New frontiers in Aerosol Sources: Beyond Mobile Emissions and Biogenics

Title: Condensable particulate matter emitted from stationary combustion sources

Camille Mouchel-Vallon

Postdoctoral Fellow

Camille Mouchel-Vallon is a postdoctoral Researcher at NCAR (Boulder, CO). He obtained his PhD in atmospheric chemistry from the Université Paris-Est Créteil (Paris, France) in 2013. He then went on to work successively at the Université Blaise Pascal (Clermont-Ferrand, France) and the University of York (UK) before starting his current position at NCAR. His main research focus is using explicit organic chemistry mechanisms to explore atmospheric SOA formation processes, with a particular interest in aqueous phase chemistry.

Session: Single Particle to Box Model

Title: SOA formation in a low NOx biogenic environment perturbed by an urban plume: an explicit modeling study of the GoAmazon 2014/5 field campaign

Fabien Paulot

Associate Researcher


Session: Regional to Global Scale Modeling of Aerosol


Jeffrey Pierce

Associate Professor

Jeff Pierce received his BS (Northeastern University, 2003) and PhD (Carnegie Mellon University, 2008) in Chemical Engineering. He was a NASA Postdoctoral Fellow at Goddard Space Flight Center from 2008-2009 and an assistant professor at Dalhousie University from 2009-2012. Since 2013, he has worked in the Department of Atmospheric Science at Colorado State University where he is now a Monfort chair associate professor. His research focuses on aerosol microphysical processes, aerosol-climate interactions, and aerosol health effects.

Session: New frontiers in Aerosol Sources: Beyond Mobile Emissions and Biogenics

Title: Representing sub-grid biomass burning processes in regional and global models

Albert Presto

Associate Research Professor

Albert Presto is an associate research professor in the Department of Mechanical Engineering at Carnegie Mellon University, and a member of the Center for Atmospheric Particle Studies (CAPS). Presto’s research focuses on pollutant emissions from energy extraction and consumption and the subsequent atmospheric transformations that these emissions undergo, with specific focus on urban environments.

Session: New frontiers in aerosol sources: Beyond mobile emissions and biogenics

Title: Beyond traffic and biogenics: Importance of cooking and volatile chemical products in the urban atmosphere

Havala Pye

Research Scientist

Havala uses computer models to understand what governs chemicals in air: from emissions through chemical and physical transformation and ultimately removal. She has worked on topics including biogenic VOC oxidation, volatile chemical products, deposition, and condensed phase chemistry. Most of her work focuses on particles and she is co-lead of the Community Multiscale Air Quality (CMAQ) Modeling system aerosol workgroup.

Session: Regional to Global Scale of Modeling of Aerosol

Title: The State of Acidity in the Atmosphere: Particles and Clouds

Bernhard Reischel

Postdoctoral Researcher

Bernhard is a computational physicist with a background in computational statistical mechanics and materials science. He is working in the computational aerosol physics group in the Institute for Atmospheric and Earth System Research (INAR) at the University of Helsinki. He is currently investigating collisions of atmospheric molecules and clusters, as well as heterogeneous ice nucleation, by means of molecular dynamics simulations and free energy calculations.

Session: Molecular to Single Particle

Title: Towards understanding heterogeneous ice nucleation on realistic silver iodide surfaces from atomistic simulation

Donghyun Rim

Assistant Professor

Dr. Donghyun Rim is Assistant Professor in Architectural Engineering at the Pennsylvania State University. Dr. Rim specializes in air quality and energy implications of building environmental systems, with a particular focus on indoor particle dynamics, low-cost indoor air quality sensing, and high-performance computing of mass/heat transfer in buildings. Dr. Rim helps organize technical sessions on indoor aerosols and aerosol exposure in AAAR conferences as the working group chair of the American Association for Aerosol Research (AAAR). Before joining Penn State, Rim worked as a research associate at UC Berkeley and a guest researcher at National Institute of Standards and Technology. Dr. Rim earned his Ph.D. degree in Civil, Architectural, and Environmental Engineering at the University of Texas at Austin.

Session: New frontiers in Aerosol Sources: Beyond Mobile Emissions and Biogenics

Title: Modeling indoor ultrafine particle dynamics

Siegfried Schobesberger

Assistant Professor

2017-present: Assistant Professor, University of Eastern Finland 2015-2017: Postdoctoral researcher, University of Washington, WA, USA (advisor Joel Thornton). 2014: PhD (physics), University of Helsinki, Finland, “Experimental studies on nucleation and atmospheric aerosol particle formation down to the molecular level” (advisor Markku Kulmala). 2008: MSc (physics), University of Vienna, Austria (advisor Paul Wagner).

Session: Molecular to Single Particle

Title: Efficient model-based retrieval of aerosol properties from composition-resolved thermal desorption measurements

Cat Scott

Research Fellow

Cat is a NERC Independent Research Fellow at the University of Leeds in the UK. Cat’s research covers a range of interactions between the biosphere, atmosphere and climate. Specifically, Cat’s work focuses on the role of vegetation in influencing atmospheric composition and therefore climate.

Session: Regional to Global Scale Modeling of Aerosol

Title: How do we represent secondary organic aerosols in Earth System Models?

Manabu Shiraiwa

Associate Professor

Manabu Shiraiwa is Associate Professor of Chemistry at the University of California, Irvine. He has worked as group leader at the Max Planck Institute for Chemistry (2013-2016) and as JSPS postdoc fellow at the California Institute of Technology (2012-2013). He received B.S. and M.S. at the University of Tokyo and PhD from the Max Planck Institute for Chemistry.

Session: Molecular to Single Particle

Title: Impacts of phase state on multiphase reactivity and partitioning of secondary organic aerosols

Manish Shrivastava

Staff Scientist

Dr. ManishKumar Shrivastava is an Atmospheric Scientist at the Atmospheric Sciences and Global Change Division at the Pacific Northwest National Laboraotry (PNNL). He develops novel measurement-based modeling formulations to improve the ability of three dimensional atmospheric chemical transport models for simulating the formation and transport of secondary organic aerosols (SOA) in the atmosphere. Dr. Shrivastava obtained his Ph.D. in Mechanical Engineering from Carnegie Mellon University in 2007. He is interested in interdisciplinary research and thinking about how new scientific understanding and modeling tools can be applied across a range of disciplines. He was recently awarded the prestigious US Department of Energy (DOE) Early Career Award (one out of 84 awards nationwide in 2018) to investigate formation of SOA due to aqueous phase and cloud chemistry processes in the atmosphere and its resulting impact on aerosol-cloud-radiation interactions.

Session: Regional to Global Scale of Modeling of Aerosol

Title: Urban pollution greatly enhances formation of natural aerosols over the pristine Amazon

Celine Toubin 


Celine’s research activities are centered around two main topics. The first one concerns the reactivity at the surface of atmospheric particles (ice, aerosols) and the second theme is connected to the formation of molecules in the interstellar medium. The thread that connects these themes is the molecular description of the fundamental processes at these particular interfaces by means of computational methods (classical Molecular Dynamics simulations (MD), Quantum Chemistry calculations). The research has always been supported by different programs, implying collaborations with both experimentalists and theoreticians. Celine’s work is essentially theoretical, it contributes to improve the detailed understanding of gas interactions with aerosol and cloud particles in the atmosphere.

SessionSingle Particle to Box Model

Title: Molecular scale insights into aerosol formation and reactivity

David Topping


My research interests focus on building computational models of atmospheric aerosol particles for use in interpretation of measured properties and as sub models for incorporation into climate change models. This broad classification masks a hierarchy of models and techniques with greatly varying complexity and range of applicability.

Session: Emerging Modelling Techniques

Title: JLBox: A Julia implementation of a fast mixed-phase atmospheric chemistry model with adjoint sensitivity analysis

Anthony Wexler

Professor and Director

Dr. Wexler obtained his BS from UC Berkeley in Engineering Physics in 1976, SM in Mechanical Engineering from MIT in 1978, and PhD from Caltech in Mechanical Engineering in 1990. His research interests center on air pollutants, their concentration and dynamics in the atmosphere in both the gas and particle phases, and their health effects. Currently, he is director of the Air Quality Research Center and Distinguished Professor of Mechanical and Aerospace Engineering, Civil and Environmental Engineering, and Land, Air and Water Resources at the University of California Davis. He has published over 200 peer reviewed papers in his career that are cited about 500 times per year.

Session: Emerging Modelling Techniques

Title: A Mass-Conserving Machine Learning Algorithm for Atmospheric Chemistry

Session: Plenary

Title: Air Pollution Toxicology: My Struggle for Realistic Exposures

Poster: Emerging Modelling Techniques

Title: Raoult was Right After All

Jia Xing

Associate Professor

Dr. Jia Xing is an Associate Professor at Tsinghua University. His research mainly focuses on the emission inventory establishment, air quality and regional climate simulation and policy assessment. He worked at US EPA as a postdoc from 2011 to 2016.

Session: Air Quality Modeling for Health and Regulatory Assessments

Title: The effectiveness of the Air Pollution Prevention and Control Action Plan on the air quality and human health during 2013-2017 in China

Zhonghua Zheng

Ph.D. Candidate

Zhonghua Zheng is currently a Ph.D. Candidate at the University of Illinois studying Environmental Engineering with a concentration in Computational Science and Engineering, supervised by Prof. Nicole Riemer. He closely works with Prof. Lei Zhao and Prof. Matthew West. He is also a Data Scientist Intern at Bayer Innovation Center at University of Illinois, mainly working for The Climate Corporation.

Session: Emerging Modelling Techniques

Title: Coarse-Graining of Aerosol Mixing State Metrics Empowered by Machine Learning

Andreas Zuend

Associate Professor

Andi Zuend is an Associate Professor in the Department of Atmospheric and Oceanic Sciences at McGill University. His research interests are focused on aerosol thermodynamics and associated box models covering organic--inorganic mixed phases, liquid--liquid phase separation, gas--particle partitioning, viscosity, acidity and other particle properties. He is also working on reduced-complexity aerosol models for applications in large scale air quality and chemistry--climate models.

Session: Single Particle to Box Model

Title: A predictive group-contribution model for the viscosity of aqueous organic aerosol