American Association for Aerosol Research - Abstract Submission

AAAR 38th Annual Conference
October 5 - October 9, 2020

Virtual Conference

Monday     -     Tuesday     -     Wednesday     -     Thursday     -     Friday




Monday

Monday 10:00 AM - 11:15 AM
Plenary I



10:00
  		 Welcoming Remarks Matti Maricq, Conference Chair, and Andrea Ferro, AAAR President, Ford Motor Company and Clarkson University

10:10
  		 The Role of Aerosols in the Transmission of COVID-19 Linsey Marr, Virgina Tech


  		 Moderator Gedi Mainelis, Rutgers University

10:35
  		 Aerosols and Masks: Building Bridges from Aerosols Science to Clinical Infectious Disease Practice Donald K. Milton, University of Maryland


  		 Moderator Paul Dabisch, National Biodefense Analysis and Countermeasures Center

11:00
  		 Discussion Gedi Mainelis and Paul Dabisch, Rutgers University and National Biodefense Analysis and Countermeasures Center

Monday 11:15 AM - 11:30 AM
Break



Monday 11:30 AM - 12:15 PM
Session 1: Platform



1AC AEROSOL CHEMISTRY: PHYSICAL PROPERTIES OF SOA
TRACK 1
Demetrios Pagonis, chair

1AC.1  
11:30		 Global Distribution of the Phase State and Mixing Times within Secondary Organic Aerosol Particles in the Troposphere Based on Room-Temperature Viscosity Measurements. ADRIAN MACLEAN, Ying Li, Natalie R. Smith, Giuseppe Crescenzo, Anusha P.S. Hettiyadura, Kyla Siemens, Celia Faiola, Alexander Laskin, Sergey Nizkorodov, Manabu Shiraiwa, Allan Bertram, University of British Columbia

1AC.2  
11:40		 Secondary Organic Aerosol Volatility on Mixed Anthropogenic and Biogenic Precursor Systems. ARISTEIDIS VOLIOTIS, Yu Wang, Yunqi Shao, Mao Du, Thomas Bannan, Rami Alfarra, Gordon McFiggans, University of Manchester

1AC.3  
11:50		 Mass Accommodation and Gas-Particle Partitioning of Semivolatile Compounds in Organic Aerosols: Diffusivity, Viscosity, and Penetration Depth Dependence. MANABU SHIRAIWA, Ulrich Pöschl, University of California, Irvine

1AE AEROSOL EXPOSURE: URBAN AEROSOL EXPOSURE
TRACK 2
Marina Vance, chair

1AE.1  
11:30		 Green Heart Louisville: Community-Level Assessment of Exposure to Air Pollution. PRADEEP S. PRATHIBHA, Eben Cross, Richard Strehl, Ray Yeager, Aruni Bhatnagar, Jay R. Turner, Washington University in St. Louis

1AE.2  
11:40		 First Measurements of PM2.5 in Kinshasa, Democratic Republic of Congo (DRC). CELESTE MCFARLANE, V. Faye McNeill, Daniel Westervelt, Columbia University

1AE.3  
11:50		 Source-Resolved Primary Organic Aerosol Exposure Estimates in the United States. Provat Saha, Ellis Shipley Robinson, Wenwen Zhang, Steven Hankey, Julian Marshall, ALLEN ROBINSON, Albert A. Presto, Carnegie Mellon University

1AP AEROSOL PHYSICS: DYNAMICS OF NANOCLUSTER FORMATION
TRACK 3
Hallie Boyer and Carlos Larriba, chairs

1AP.1  
11:30		 Particle Size Distribution Dynamics Can Help Constrain the Phase State of Secondary Organic Aerosol. CHARLES HE, Ali Akherati, Theodora Nah, Jeffrey R. Pierce, Rahul Zaveri, Christopher Cappa, Lauren A. Garofalo, Nga Lee Ng, Delphine K. Farmer, Shantanu Jathar, Colorado State University

1AP.2  
11:40		 Diurnal and Seasonal Variations of Secondary Organic Aerosol Phase State over the Continent US Simulated in CMAQ. YING LI, Annmarie Carlton, Kirk Baker, Manabu Shiraiwa, University of California, Irvine

1AP.3  
11:50		 The Effect of Rotation and Preferred Orientation on Particle Mobility in the Free Molecular Regime. CARLOS LARRIBA-ANDALUZ, Viraj Gandhi, IUPUI

1CA CARBONACEOUS AEROSOLS: LIGHT-ABSORBING BIOMASS BURNING AEROSOLS
TRACK 4
James Allan, chair

1CA.1  
11:30		 Changes in Light Absorption Driven by Two Different Oxidation Processes on Atmospheric Tar Balls from Wildfires in Western United States. BENJAMIN SUMLIN, Nishit Shetty, Andrew Lambe, Edward Fortner, Andrew Lambe, Rajan K. Chakrabarty, Washington University in St. Louis

1CA.2  
11:40		 Examination of Brown Carbon Absorption from Wildfires in the Western U.S. during the WE-CAN Study. AMY P. SULLIVAN, Rudra Pokhrel, Yingjie Shen, Shane Murphy, Darin Toohey, Teresa Campos, Jakob Lindaas, Emily Fischer, Jeffrey Collett, Colorado State University

1CA.3  
11:50		 Light Absorbing Properties of Biomass Burning-influenced Organic Aerosols in Southeast Asia. NETHMI KASTHURIARACHCHI, Laura-Helena Rivellini, Alex Lee, National University of Singapore

1ID ROLE OF AEROSOL SCIENCE IN COVID-19: TOOLS AND FIELD STUDIES INVOLVING SARS-COV-2
TRACK 5
Paul Dabisch and Gedi Mainelis, chairs

1ID.1  
11:30		 Measurements of Patient-Generated SARS-CoV-2 Aerosols and Surface Contamination at the University of Nebraska Medical Center. JOSHUA SANTARPIA, St. Patrick Reid, Danielle Rivera, Vicki Herrera, Shanna Ratnesar-Shumate, Kevin Crown, Nicholas Markin, Steven Lisco, St. Patrick Reid, Jane Morwitzer, Paul Denton, Jacob Martens, Ying Fang, Michael Callahan, Jana Broadhurst, Hanna Creager, Conoan Nicholas, David Brett-Major, Elizabeth Schnaubelt, James Lawler, John Lowe, University of Nebraska Medical Center

1ID.2  
11:40		 Collection of SARS-CoV-2 Virus from the Air in a University Student Health Care Center and Analyses of its Viral Genomic Sequence. John Lednicky, SRIPRIYA NANNU SHANKAR, Maha Adel El Badry, Julia C. Gibson, MD Mahbubul Alam, Caroline J Stephenson, Arantzazu Eiguren Fernandez, John Glenn Morris, Carla Nartuhi Mavian, Marco Salemi, James R Clugston, Chang-Yu Wu, University of Florida

1ID.3  
11:50		 Comparison of the Performance of Personal Biological Aerosol Samplers for SARS-CoV-2. SHANNA RATNESAR-SHUMATE, Gregory Williams, Brian Holland, Jordan Bohannon, Melissa Krause, Brian Green, Denise Freeburger, Paul Dabisch, DHS NBACC

1RA REMOTE AND REGIONAL AEROSOLS: BIOMASS BURNING AND BIG PARTICLES
TRACK 6
Andy May, chair

1RA.1  
11:30		 Persistent Influence of Biomass Burning Aerosols during Clean Air Conditions in the Western United States. RYAN FARLEY, Noah Bernays, Daniel Jaffe, Qi Zhang, University of California, Davis

1RA.2  
11:40		 Chemical Composition and Morphological Analysis of Internally Mixed Mineral Dust and Biomass Burning Aerosols. JAY TOMLIN, Johannes Weis, Swarup China, Daniel Veghte, Matthew Fraund, Naama Reicher, Quanfu He, Chunlin Li, Yinon Rudich, Ryan Moffet, Mary Gilles, Alexander Laskin, Purdue University

1RA.3  
11:50		 Relationships between Supermicrometer Sea Salt Aerosol and Marine Boundary Layer Conditions: Insights from Repeated Identical Flight Patterns. JOSEPH SCHLOSSER, Hossein Dadashazar, Eva-Lou Edwards, Ali Mardi, Gouri Prabhakar, Connor Stahl, Haflidi Jonsson, Armin Sorooshian, University of Arizona

Monday 12:15 PM - 12:30 PM
Break



Monday 12:30 PM - 1:15 PM
Session 2: Platform



2AC AEROSOL CHEMISTRY: AQUEOUS PROCESSING OF SOA
TRACK 1
Annmarie Carlton, chair

2AC.1  
12:30		 Photodegradation of Secondary Organic Aerosols by Long Term Exposure to Solar Actinic Radiation. VAHE BABOOMIAN, Yiran Gu, Sergey Nizkorodov, University of California, Irvine

2AC.2  
12:40		 Aqueous Photochemistry of Synthesized Pinene-Derived Carboxylic Acids and Dimer Esters. CHRISTOPHER KENSETH, Yuanlong Huang, Nathan Dalleska, John Seinfeld, California Institute of Technology

2AC.3  
12:50		 Synthesis and Hydrolysis of Atmospherically Relevant Monoterpene Organic Nitrates. YUCHEN WANG, Masayuki Takeuchi, Tianchang Xu, Amanda J Schwartz, Ivan Piletic, Stefan France, Nga Lee Ng, Georgia Institute of Technology

2AE AEROSOL EXPOSURE: TRAFFIC-RELATED AEROSOL EXPOSURE
TRACK 2
Jeff Siegel, chair

2AE.1  
12:30		 Trends in Inter- and Intra-Urban Ultrafine Particle Concentrations in North America: Exposure Implications. ALBERT PRESTO, Provat Saha, Allen Robinson, Carnegie Mellon University

2AE.2  
12:40		 In-Car Measurements of Traffic-Related Air Pollutants during Car Commuting. CHEOL H. JEONG, Taylor Edwards, Carson Clark, Alison Traub, Dana Umbrio, Greg J. Evans, SOCAAR, University of Toronto

2AE.3  
12:50		 High-Resolution Cumulative Exposure Assessment of Traffic-Related Air Pollution with Different Google Navigation Route Options. MINMENG TANG, Deb Niemeier, University of California, Davis

2AP AEROSOL PHYSICS: PARTICLE SIZE EFFECTS ON DRYING & WALL LOSS KINETICS
TRACK 3
Eirini Goudeli, chair

2AP.1  
12:30		 Primary Ion Diffusion Charging and Particle Wall Loss in Smog Chamber Experiments. NASER MAHFOUZ, Neil Donahue, Carnegie Mellon University

2AP.2  
12:40		 Inter-comparison of Particle Wall Loss Among UCR Chambers and Caltech Chamber. CHEN LE, Don Collins, David R. Cocker III, University of California, Riverside

2AP.3  
12:50		 Influence of Particle Size, Concentration and Drying Conditions on Colloidal Droplet Drying Kinetics and Dry Microparticle Morphology. JUSTICE ARCHER, Jim Walker, Jonathan P. Reid, University of Bristol

2CA CARBONACEOUS AEROSOLS: OPTICAL AND PHYSICAL PROPERTIES OF ABSORBING AEROSOLS
TRACK 4
Dan Westervelt, chair

2CA.1  
12:30		 Evolution of Black Carbon Coatings in Biomass Burning Plumes during FIREX-AQ. BRADEN MEDIAVILLA, Joseph Katich, Joshua P. Schwarz, Glenn Diskin, Richard Moore, Elizabeth Wiggins, Donald Blake, Barbara Barletta, Nicola Blake, Simone Meinardi, Anne Perring, Colgate University

2CA.2  
12:40		 Imaginary Refractive Index Comparison of Water- and Methanol-soluble Brown Carbon Aerosol from western US Wildfires. Pai Liu, NISHIT SHETTY, Benjamin Sumlin, Yutong Liang, Allen Goldstein, Rajan K. Chakrabarty, Washington University in St. Louis

2CA.3  
12:50		 Submicron Soot Microphysical and Chemical Signatures from Detonations of High Explosive Composites in Controlled Atmospheres. ALLISON AIKEN, Rachel Huber, Andrew Schmalzer, Mark Boggs, James D. Lee, Kyle Gorkowski, Manvendra Dubey, Los Alamos National Lab

2ID ROLE OF AEROSOL SCIENCE IN COVID-19: VIRUS TRANSMISSION STUDIES
TRACK 5
Victoria Wahl and Paul Dabisch, chairs

2ID.1  
12:30		 Quantitative Aerobiologic Analysis of an Influenza Human Challenge-Transmission Trial. P. JACOB BUENO DE MESQUITA, Noakes Catherine, Donald Milton, University of Maryland School of Public Health

2ID.2  
12:40		 Evidence of Transmission of SARS-CoV-2 in Exhaled Breath Aerosols of Experimentally-Infected Nonhuman Primates. CHAD ROY, Tulane University

2ID.3  
12:50		 Comparison of Different Methods for Respiratory Exposure to COVID-19 and Impact on Subsequent Disease and Virus Shedding in Animal Models. Katherine O'Malley, Dominique Barbeau, Emily Olsen, Mengying Xia, Jeneveve Lundy, Shamkumar Nambulli, Cynthia McMillen, Natasha Tilston-Lunel, Emily Cottle, Theron Gilliland, Anita McElroy, Amy Hartman, William Klimstra, Paul Duprex, DOUGLAS REED, University of Pittsburgh

2RA REMOTE AND REGIONAL AEROSOLS: CHARACTERIZING REGIONAL AEROSOLS
TRACK 6
Chris Hennigan, chair

2RA.1  
12:30		 Organic Composition of Aerosol Particles over the Southern Ocean by STXM-NEXAFS. LYNN RUSSELL, Georges Saliba, Kevin Sanchez, Cynthia Twohy, Greg Roberts, Savannah Lewis, Jeramy Dedrick, Christina McCluskey, Kathryn Moore, Paul DeMott, Cynthia Twohy, Scripps Institution of Oceanography

2RA.2  
12:40		 Characterization of Rural vs. Urban PM2.5 in the Indo-Gangetic Plain. SAUMYA SINGH, Mark Campmier, Harsh Raj Mishra, Sreekanth Vakacherla, Adithi Upadhya, Jonathan Gingrich, Meenakshi Kushwaha, Ravi Kant Pathak, Julian Marshall, Sagnik Dey, Joshua Apte, University of Texas at Austin

2RA.3  
12:50		 Variability in the Composition and Chemical Impacts of Biogenic Volatile Organic Compounds in the Southeastern U.S.. DEBORAH MCGLYNN, Sally Pusede, Gabriel Isaacman-VanWertz, Virginia Tech

Monday 1:15 PM - 1:30 PM
Break



Monday 1:30 PM - 2:15 PM
Session 3: Platform



3AC AEROSOL CHEMISTRY: ORGANIC NITROGEN
TRACK 1
Yuchen Wang, chair

3AC.1  
1:30		 Volatility Distributions and Solubility of Monoterpene-derived Organic Nitrates. MASAYUKI TAKEUCHI, Yuchen Wang, Gamze Eris, Nga Lee Ng, Georgia Institute of Technology

3AC.2  
1:40		 Formation and Chemical Evolution of Organic Nitrates during Oxidation of Volatile Organic Compounds. QING YE, Abigail Koss, Manjula Canagaratna, Alexander Zaytsev, Jordan Krechmer, Martin Breitenlechner, Kevin Nihill, Christopher Lim, James Rowe, Joseph Roscioli, Frank Keutsch, Jesse Kroll, MIT

3AC.3  
1:50		 Gas and Particle-phase Highly Oxygenated Organic Molecules and Organic Nitrates from Chlorine-Initiated Photo-Oxidation of α-Pinene. CATHERINE MASOUD, Lea Hildebrandt Ruiz, University of Texas at Austin

3AE AEROSOL EXPOSURE: INDOOR EXPOSURE TO AMBIENT AEROSOLS
TRACK 2
Anita Avery, chair

3AE.1  
1:30		 Characterizing Infiltration and Indoor Contribution of PM2.5 Based on Volunteer-generated Monitoring Data at Large Spatial and Temporal Scales. JIANZHAO BI, Lance Wallace, Jeremy A. Sarnat, Yang Liu, Emory University

3AE.2  
1:40		 Mongolia PM2.5 Ambient Air Quality and Children's Indoor Exposures at School. ZHIYAO LI, Munkhbayar Buyan, Rufus Edwards, Alex Heikens, Jay R. Turner, Washington University in St. Louis

3AE.3  
1:50		 Problems at Home: Comparing Health Risks of Indoor and Outdoor Emissions during the HOMEChem Campaign. ANNA HODSHIRE, Matson A. Pothier, Erin K. Boedicker, Delphine K. Farmer, Colorado State University

3AP AEROSOL PHYSICS: COAGULATION OF AEROSOL NANOPARTICLES
TRACK 3
Ranganathan Gopalakrishnan, chair

3AP.1  
1:30		 Tuning Nanoparticle Aggregation with Externally Applied Magnetic Field Strength. PRITHWISH BISWAS, Pankaj Ghildiyal, George Mulholland, Michael Zachariah, University of California, Riverside

3AP.2  
1:40		 Heat Transfer in Nanometer Scale Aerosol Particles. Huan Yang, CHRISTOPHER J. HOGAN, University of Minnesota

3AP.3  
1:50		 An Experimentally Validated Model of Diffusion Charging of Arbitrary Shaped Aerosol Particles. LI LI, Ranganathan Gopalakrishnan, The University of Memphis

3CA CARBONACEOUS AEROSOLS: INTRINSIC OPTICAL PROPERTIES OF BLACK CARBON
TRACK 4
Ogo Enekwizu, chair

3CA.1  
1:30		 Determination of the Refractive Index of Carbon Black Engulfed by Ammonium Sulfate from Effective Medium Approximations. JAMES RADNEY, Christopher Zangmeister, National Institute of Standards and Technology

3CA.2  
1:40		 Estimation of the Mass Absorption Cross Section of Atmospheric Black Carbon using Regression and Machine Learning Approaches. HANYANG LI, Andrew May, The Ohio State University

3CA.3  
1:50		 Refractive Index of Black Carbon (BC) and Brown Carbon (BrC) Particles with True Monodisperse Selection. DAWEI HU, Rami Alfarra, Kate Szpek, Justin Langridge, Chenjie Yu, Michael Cotterell, Claire Belcher, Ian Rule, Yunqi Shao, Aristeidis Voliotis, Zixia Liu, Dantong Liu, Jim Haywood, Hugh Coe, James Allan, University of Manchester

3ID ROLE OF AEROSOL SCIENCE IN COVID-19: FACTORS AFFECTING SURVIVAL OF VIRUSES
TRACK 5
Josh Santarpia and Gedi Mainelis, chairs

3ID.1  
1:30		 Survival of Viruses in Droplets as a Function of Relative Humidity, pH, and Salt, Protein, and Surfactant Concentrations. Kaisen Lin, Chase Schulte, LINSEY MARR, Virginia Tech

3ID.2  
1:40		 Survival of SARS-CoV-2 in the Aerosol Phase Across a Broad Range of Temperature (5 to 40 oC), Relative Humidity (<5 to >90%) and Time (<5 seconds to >24 Hours). ALLEN E. HADDRELL, Henry Oswin, Tristan Cogan, Jamie Mann, Jonathan P. Reid, University of Bristol

3ID.3  
1:50		 Effects of Environmental Conditions, Suspension Liquid, and Particle Size on SARS-CoV-2 Persistence in Aerosols. MICHAEL SCHUIT, Shanna Ratnesar-Shumate, Jason Yolitz, Gregory Williams, Wade Weaver, Brian Green, David Miller, Melissa Krause, Katie Beck, Stewart Wood, Brian Holland, Jordan Bohannon, Denise Freeburger, Idris Hooper, Michael Hevey, Paul Dabisch, DHS NBACC

3RA REMOTE AND REGIONAL AEROSOLS: MODELING AEROSOLS ACROSS SCALES
TRACK 6
Ben Murphy, chair

3RA.1  
1:30		 Dynamical Downscaling of a Global Chemistry-Climate Model to Study the Influence of Climate Change and Variability on Mid-21st Century PM2.5 in the Continental US. SURENDRA KUNWAR, Jared Bowden, George Milly, Previdi Michael, Arlene Fiore, Jason West, University of North Carolina at Chapel Hill

3RA.2  
1:40		 Integrating Aerosol Size Distribution Measurements with a 3D Chemical Transport Model. DANA MCGUFFIN, Erik B. Ydstie, Peter Adams, Carnegie Mellon University

3RA.3  
1:50		 Effect of a Forest Canopy on the Spatial Distribution of Windborne Dust Concentration during a Dust Storm. BORIS KRASOVITOV, Andrew Fominykh, Avi Levy, Itzhak Katra, Ben-Gurion University of the Negev, Israel

Monday 6:00 PM - 7:30 PM
Session 4: Posters



4AC
4AC.1  
 Anthropogenic Influences on Amazonian Organic Aerosol: A Molecular-Level Analysis. EMILY BARNES, Lindsay Yee, Gabriel Isaacman-VanWertz, Rebecca Wernis, Nathan Kreisberg, Robert Weber, Scot T. Martin, Brett Palm, Weiwei Hu, Pedro Campuzano-Jost, Douglas Day, Jose-Luis Jimenez, Paulo Artaxo, Allen Goldstein, University of California, Berkeley

4AC.2  
 Solvent-modulated Effects on the Physical Properties of Secondary Organic Aerosol Mimicking Solutions. Emmaline Longnecker, Rebecca Miller, Lucy Metz, Tracy Rompich, ANDREW BERKE, Smith College

4AC.3  
 Vibrational Modes of 2-Methyltetrol Sulfates from Raman and Infrared Spectroscopy. ALISON FANKHAUSER, Ziying Lei, Kimberly Daley, Yao Xiao, Andrew Ault, University of Michigan

4AC.4  
 Simulating Wall-free Aromatic Secondary Organic Aerosol Formation via Multiphase Reactions in the Presence of Electrolytic Inorganic Aerosol. SANGHEE HAN, Myoseon Jang, Chufan Zhou, University of Florida

4AC.5  
 Heterogeneous Oxidation of Benzo[a]pyrene: Kinetics, Products and Toxicity. AMY HRDINA, James Rowe, Simran Kaushal, Bevin Engelward, Jesse Kroll, MIT

4AC.6  
 Comparison of Chemical Characteristics of PM2.5 Haze Events in Beijing, China and Gwangju, Korea. JIHO JANG, Haebum Lee, Minhan Park, Nohhyeon Kwak, Ilhwa Seo, Dahye Oh, Min-Suk Bae, Kyoung-Soon Jang, Yujue Wang, Min Hu, Kihong Park, Gwangju Institute of Science and Technology

4AC.7  
 The Effects of Ammonium on the Atmospheric Aging of 3-Oxodicarboxylic Acids. ALEXANDRA KLODT, Jorge Fernandez, Michael Olsen, Sergey Nizkorodov, University of California, Irvine

4AC.8  
 pH-Dependence of the OH-Reactivity of Organic Acids in the Aqueous Phase. JESSICA LIMA AMORIM, Keifer Klimchuk, Florence Williams, Ran Zhao, University of Alberta

4AC.9  
 Formation of Reactive Oxygen Species in Heated Cooking Oil Fumes and Real Cooking Emissions. LU LU, Vanessa Yan Zi Ng, Zheng Hao Melvyn Tan, Yue Qian Tan, Wei Jie Seow, Alex Lee, National University of Singapore

4AC.10  
 Humidity Dependence of the Condensational Growth Rate of Secondary Organic Aerosol Particles. YIMING QIN, Jinghao Zhai, Paul Ohno, Jianhuai Ye, Yuemei Han, Pengfei Liu, Rahul Zaveri, Scot T. Martin, Harvard University

4AC.11  
 Frequency-Dependent Humidity Response in Ultraviscous and Gel Particles. CRAIG SHELDON, Chelsea Price, Ryan Davis, James F. Davies, University of California, Riverside

4AC.12  
 Long-term Aging of Secondary Organic Aerosols Derived from Monoterpenes in the Presence of Water Vapor and Liquid Water. CYNTHIA WONG, Daniel Vite, Sergey Nizkorodov, University of California, Irvine

4AC.13  
 Simulation of Monoterpene SOA Formation via Multiphase Reactions of Lumping Species Generated from Explicit Gas Mechanisms. ZECHEN YU, Myoseon Jang, Tianyu Zhang, Azad Madhu, Sanghee Han, University of Florida

4AC.14  
 Heterogeneous Hydroxyl Radical Oxidation of Isoprene Epoxydiol (IEPOX)-Derived Secondary Organic Aerosol: Identification of Highly Oxygenated Products by HILIC/ESI-HR-QTOFMS. N. CAZIMIR ARMSTRONG, Yuzhi Chen, Tianqu Cui, Yue Zhang, Jin Yan, Zhenfa Zhang, Barbara Turpin, Man Nin Chan, Andrew Ault, Avram Gold, Jason Surratt, UNC Chapel Hill

4AC.15  
 SOA Formation in Mixed Oxidant (OH + Cl) Environments. NIRVAN BHATTACHARYYA, Mrinali Modi, Lea Hildebrandt Ruiz, University of Texas at Austin

4AC.17  
 Inorganic Sulfur Species Formation upon Heterogeneous OH Oxidation of Organosulfates: Methyl Sulfate. Kai Chung Kwong, Yao Ge, Hon Yin Poon, Rongshuang Xu, Jian Zhen Yu, MAN NIN CHAN, The Chinese University of Hong Kong

4AC.18  
 Heterogeneous Hydroxyl Radical Oxidation of Isoprene Epoxydiol-Derived Methyltetrol Sulfates: Plausible Formation Mechanisms of Previously Unexplained Organosulfates in Ambient Fine Aerosols. YUZHI CHEN, Yue Zhang, Andrew Lambe, Rongshuang Xu, Ziying Lei, Nicole Olson, Zhenfa Zhang, Tessa Szalkowski, Tianqu Cui, William Vizuete, Avram Gold, Barbara Turpin, Andrew Ault, Man Nin Chan, Jason Surratt, UNC-Chapel Hill

4AC.19  
 Atmospheric Particle Composition at Different Altitude via Tethered Balloon System. SWARUP CHINA, Nurun Nahar Lata, Fan Mei, Darielle Dexheimer, Kuo-Pin Tseng, Zihua Zhu, Rhenton Brimberry, Noah Wilson, Pacific Northwest National Laboratory

4AC.20  
 Aqueous-phase Secondary Organic Aerosol Formation: Laboratory Simulations and Field Observations in China. XINLEI GE, Zhaolian Ye, Nanjing University of Information Science & Technology

4AC.22  
 SOA Production from Chlorine Radical Oxidation of Alkanes: Effects of Structural Branching, NOx, and Relative Humidity. LEIF JAHN, Dongyu S. Wang, Surya Venkatesh Dhulipala, Felipe Cardoso Saldaña, Lea Hildebrandt Ruiz, University of Texas at Austin

4AC.24  
 Single Particle Analysis to Study Heterogeneous Oxidative Aging of Aerosols. RAVLEEN KAUR KOHLI, James F. Davies, University of California, Riverside

4AC.25  
 Investigating the July 1st/2nd 2018, Pollution Event at Whiteface Mountain with Box Modeling and WRF-Chem. CHRISTOPHER LAWRENCE, Mary Barth, Sara Lance, Paul Casson, Dan Kelting, Elizabeth Yerger, University at Albany, SUNY

4AC.26  
 Atmospheric Reactivity of Brake Wear Particulate Matter: Implications for Predicting and Improving Air Quality. LAURA MATCHETT, Kristyna Stix, Maya Abou-Ghanem, Sarah Styler, University of Alberta

4AC.27  
 Detailed Comparisons of Results From Comprehensive Chamber Studies and Explicit Chemical Mechanisms. JOSHUA MOSS, Abigail Koss, Alexander Zaytsev, Martin Breitenlechner, Jordan Krechmer, Kevin Nihill, Jonathan Franklin, Christopher Lim, James Rowe, Joshua L. Cox, Joshua Shutter, Manjula Canagaratna, Brian Lerner, Douglas Worsnop, Richard Valorso, Marie Camredon, Bernard Aumont, Frank Keutsch, Jesse Kroll, MIT

4AC.28  
 Quantification of Organic Aerosol Evaporation Rates in Aircraft Inlets and Instruments. DEMETRIOS PAGONIS, Benjamin A. Nault, Pedro Campuzano-Jost, Hongyu Guo, Jason Schroder, Douglas Day, Jose-Luis Jimenez, University of Colorado-Boulder

4AC.29  
 Investigation of Brown Carbon Formation in Cloud Droplets and Ambient Particles Undergoing Drying. VIKRAM PRATAP, Michael Battaglia Jr., Amy Christiansen, Annmarie Carlton, Christopher Hennigan, University of Maryland, Baltimore County

4AC.30  
 Organic Fraction of the <0.15 µm Diameter Aerosol Particles over the Southern Ocean. GEORGES SALIBA, Kevin Sanchez, Savannah Lewis, Lynn Russell, Cynthia Twohy, Greg Roberts, Scripps Institution of Oceanography

4AC.31  
 Molecular Characterization of Brown Carbon Produced from the OH/NOx Photo-oxidation of Naphthalene. KYLA SIEMENS, Ana Morales, Anusha P.S. Hettiyadura, Quanfu He, Chunlin Li, Yinon Rudich, Alexander Laskin, Purdue University

4AC.32  
 Simulation of the Impact of Particle Phase State on SOA Formation from the Photooxidation of Isoprene and Beta-pinene Cocktail in the Presence of Electrolytic Salts. ZECHEN YU, Myoseon Jang, University of Florida

4AC.33  
 Superoxide Formation from Aqueous Reactions of Biogenic Secondary Organic Aerosols. JINLAI WEI, Ting Fang, Cynthia Wong, Pascale Lakey, Sergey Nizkorodov, Manabu Shiraiwa, University of California, Irvine

4AC.34  
 Nonrefractory Particulate Matter Detection Using the Dual-Vaporizer Configuration of the Soot Particle Aerosol Mass Spectrometer (SP-AMS). LEAH WILLIAMS, Anita Avery, Arthur J. Sedlacek, Timothy Onasch, Aerodyne Research, Inc.

4AC.35  
 Direct Measurement of Ozone Sensitivity to Oxides of Nitrogen and Volatile Organic Compounds during COVID-19 Using a Mobile Smog Chamber System. SHENGLUN WU, Toshihiro Kuwayama, Michael Kleeman, University of California, Davis

4AC.36  
 The Effect of Aerosol Acidity on the Volatility of Isoprene and Monoterpene-derived Secondary Organic Aerosol (SOA). ALLA ZELENYUK, David Bell, Matthieu Riva, Dan Imre, Marianne Glasius, ManishKumar Shrivastava, John Shilling, Jason Surratt, Joel A. Thornton, Emma D'Ambro, Rahul Zaveri, Pacific Northwest National Laboratory

4AC.37  
 The Interconnection of Aerosol-Phase State and Chemical Composition Impact the Formation and Climate-Altering Properties of Isoprene-Derived Secondary Organic Aerosols. YUE ZHANG, Yuzhi Chen, Martin Wolf, Andrew Lambe, Nicole Olson, Ziying Lei, Zhenfa Zhang, Avram Gold, John Jayne, Douglas Worsnop, Timothy Onasch, Daniel Cziczo, Andrew Ault, Jason Surratt, University of North Carolina at Chapel Hill

4AC.38  
 Gas-phase Hydrogen Peroxide from Multiphase Ozonolysis of Unsaturated Lipids. ZILIN ZHOU, Jonathan Abbatt, University of Toronto, Canada

4AC.39  
 Photochemical Uptake of Ozone by Organic-Coated TiO2 Particles: Influence of Atmospheric Transport on Mineral Dust Photochemistry. MAYA ABOU-GHANEM, Sarah Styler, University of Alberta

4AC.40  
 A Two-city Study of Air Quality in Vietnam 2018-19: Source Apportionment Using PMF Applied to Offline AMS Data. ZAINAB BIBI, James Allan, Thomas Bannan, Alex Baker, David Oram, Duong Huu Huy, To Thi Hien, Hugh Coe, Saleh Alzahrani, University of Manchester, UK

4AC.41  
 Deep Learning for Prediction of Multiphase Isoprene Oxidation Products. MUNKHZAYA BOLDBAATAR, Mohamadamin Tavakoli, Dora Kadish, Karla Rojas Garcia, Pierre Baldi, David van Vranken, Sergey Nizkorodov, Annmarie Carlton, University of California, Irvine

4AC.42  
 Impact of Meteorological Models on Aerosol Liquid Water Predictions. ALYSSA BURNS, Virendra Ghate, Amy Christiansen, Annmarie Carlton, University of California, Irvine

4AC.43  
 Aqueous Phase Reactions of Humic Like Substances (HULIS) Proxies with Photoproduced Reactive Oxygen Species (ROS). ANTHONY CARRASQUILLO, Wyndom Chase, David Noeckel, Amelia Schaeffer, Allison Wong, Williams College

4AC.44  
 Coupling Online Conductivity with Offline Ion Chromatography Measurements using the Particle-into-Liquid Sampler. EWAN CROSBIE, Michael Shook, Luke Ziemba, Taylor Shingler, Bruce Anderson, Claire Robinson, Edward Winstead, Armin Sorooshian, Connor Stahl, Alexander B. MacDonald, Rachel Braun, SSAI

4AC.45  
 Comparison of Nitrate Radical Initiated Oxidation of Four Monoterpenes in a Laboratory Chamber Study to Gain Mechanistic Insight. MICHELIA DAM, Danielle C. Draper, Andrey Marsavin, Juliane L. Fry, James Smith, University of California, Irvine

4AC.46  
 Simulations of Kinetically-Limited IEPOX-SOA Reactive Uptake with Glass Transition Temperatures Predicted by Volatility and Chemical Composition Implemented in CMAQv5.3. SARA FARRELL, Quazi Rasool, Havala Pye, Yue Zhang, Ying Li, Yuzhi Chen, Chitsan Wang, Haofei Zhang, Ryan Schmedding, Manabu Shiraiwa, Jason Surratt, William Vizuete, University of North Carolina at Chapel Hill

4AC.47  
 Photolysis of Aqueous Atmospheric Aerosol Mimics. Jacqueline Sharp, Daisy Grace, Shiqing Ma, Joseph Woo, MELISSA GALLOWAY, Lafayette College

4AC.48  
 Ozonolysis of Unsaturated Products from Toluene Photo-oxidation Can Form Highly Oxygenated Organic Molecules (HOM). OLGA GARMASH, Matthieu Riva, Matti P. Rissanen, Pekka Rantala, Otso Peräkylä, Liine Heikkinen, Yanjun Zhang, Mikael Ehn, University of Helsinki

4AC.49  
 Impacts of Functional Group Identity on SOA Yields and Kinetics. ANDREW HALLWARD-DRIEMEIER, Jonathan Hall, Amelia Schaeffer, Spence Katie, LeClerc Paul, Nicholas Whitcomb, Petra Baldwin, Nandini Seetharaman, Chris Avila, Anthony Carrasquillo, Williams College

4AC.50  
 Growth of Fresh SOA Seed Particles by α-Pinene Ozonolysis. DEVON HAUGH, Michael S. Taylor, Michael J. Apsokardu, Murray Johnston, University of Delaware

4AC.51  
 NH3 and PM2.5 Characteristics at an Agricultural Site. JOONWOO KIM, Haebum Lee, Taewoong Gong, Kihong Park, Gwangju Institute of Science and Technology

4AC.52  
 Physicochemical Properties of Free Tropospheric Particles Collected at Pico Mountain Observatory and Their Role in Ice Cloud Formation. NURUN NAHAR LATA, Bo Zhang, Simeon Schum, Lynn Mazzoleni, Claudio Mazzoleni, Swarup China, Pacific Northwest National Laboratory

4AC.53  
 Effect of Particle Properties to the Atmospheric Visibility. WEN-BIN LEE, Yeou-Lih Yan, Hsin-Chih Lai, Shao-Hao Lu, Ming-Tung Chuang, Tang-Huang Lin, Chea-Yuan Yang, Ying-I Tsai, Chih-Chieh Chen, Wen-Yinn Lin, National Taipei University of Technology

4AC.54  
 Formation of Secondary Organic Aerosol from Nitrate Radical Oxidation of Phenolic Vocs: Implications for Nitration Mechanisms and Brown Carbon Formation. RAPHAEL MAYORGA, Zixu Zhao, Haofei Zhang, University of California, Riverside

4AC.57  
 Nucleation and Growth of Particulate Matter from the Photooxidation of Aromatic Hydrocarbons. ISSAK PROAÑO LÓPEZ, Murray Johnston, University of Delaware

4AC.58  
 Sea Spray Aerosol Assessment of Atmospheric Corrosion in a Marine Environment. RAYMOND SANTUCCI, Christine Sanders, US Naval Research Laboratory

4AC.59  
 Multiphase Degradation of Levoglucosan Using 0-D Numerical Simulations: Degradation Time Scales and Effects on SOA and Other Gases. LOREDANA SUCIU, Robert Griffin, Caroline Masiello, Rice University

4AC.60  
 Chemical Characterization of Isoprene- and Monoterpene-Derived Secondary Organic Aerosol (SOA) Tracers in Marine Aerosols from the Galápagos Islands. TESSA SZALKOWSKI, Tianqu Cui, Karsten Baumann, Ryan Schmedding, Zhenfa Zhang, Jason Surratt, Jackson Seymore, William Vizuete, University of North Carolina at Chapel Hill

4AC.61  
 Modeling and Interpreting the Growth of Deliquesced Ammonium Sulfate Seed Particles by α-Pinene Ozonolysis. MICHAEL S. TAYLOR, Michael J. Apsokardu, Devon Haugh, Murray Johnston, University of Delaware

4AC.62  
 Surfactant Effects on Hanging Droplet Aqueous-Phase Aerosol Mimic Direct Photochemistry. Thomas Beier, JOSEPH WOO, Lafayette College

4AC.63  
 Atmospheric Nanoparticles: Optical Photothermal Infrared Spectroscopy of Determining Particle Sizes. Nicole Olson, YAO XIAO, Ziying Lei, Andrew Ault, University of Michigan

4AC.64  
 Composition of Isoprene and Nitrate Radical Reaction Products Using FIGAERO-CIMS. TIANCHANG XU, Masayuki Takeuchi, Yuchen Wang, Nga Lee Ng, Georgia Institute of Technology

4EJ
4EJ.2  
 Advancing Air Quality Monitoring in Environmental Justice Communities of the South Coast Air Basin, CA: II. Design and Development of a Novel Multi-Metal Mobile Platform. MOHAMMAD SOWLAT, Sina Hasheminassab, Pami Mukherjee, Payam Pakbin, Steven Boddeker, Avi Lavi, Jamie Berg, Andrea Polidori, South Coast Air Quality Management District, Diamond Bar, CA

4EJ.3  
 Composition and Source Characterization of Aerosols in an Environmental Justice (EJ) Community in California (Wilmington). HOSSEIN PAZOOKI, Pami Mukherjee, Mohammad Sowlat, Payam Pakbin, Roya Bahreini, University of California, Riverside

4SD
4SD.1  
 The Relationship between MAIAC Smoke Plume Heights and Surface Particulate Matter. MICHAEL CHEESEMAN, Bonne Ford, John Volckens, Alexei Lyapustin, Jeffrey R. Pierce, Colorado State University

4SD.2  
 Infection vs Fatality of COVID-19 in New York State: Effects of Demographics and Poor Air Quality. VIJAY KUMAR, Bridget Wangler, Chaya Chaipitakporn, Shantanu Sur, Supraja Gurajala, Suresh Dhaniyala, Sumona Mondal, Clarkson University, Potsdam

4VC
4VC.1  
 A New Framework for Modeling Emissions from Volatile Chemical Products. KARL SELTZER, Elyse Pennington, Venkatesh Rao, Benjamin Murphy, Madeleine Strum, Kristin Isaacs, Havala Pye, United States Environmental Protection Agency

4VC.2  
 Model Estimation of Indoor-to-Outdoor Migration of Volatile Chemical Products. AMIRASHKAN ASKARI, Arthur W. H. Chan, University of Toronto

4VC.3  
 Characterization of Oxygenated Organic Compounds in SOA from the Photooxidation of n-Heptadecane in the Presence of NOx. MOHAMMED JAOUI, Michael Hays, Emily Li, Kenneth S. Docherty, Michael Lewandowski, Tadeusz Kleindienst, U.S. Environmental Protection Agency

4VC.4  
 Modification and Optimization on Environmental Chamber Experiments of Secondary Organic Aerosol Formation from LVP-VOCs and Volatile Consumer Products to Improve Model Prediction. QI LI, Sophia Charan, Reina Buenconsejo, John Seinfeld, David R. Cocker III, University of California, Riverside

4VC.5  
 Temporal Evolution of Secondary Organic Aerosol Production from Volatile Chemical Products. ALBERT PRESTO, Mackenzie Humes, Rebecca Tanzer Gruener, Rishabh Shah, Allen Robinson, Neil Donahue, Carnegie Mellon University

4VC.6  
 Connecting Composition to Reactivity for Fragrances and Their Emissions. JAMES HURLEY, Gabriel Isaacman-VanWertz, Virginia Tech