American Association for Aerosol Research - Abstract Submission

AAAR 37th Annual Conference
October 14 - October 18, 2019
Oregon Convention Center
Portland, Oregon, USA

Aerosol Chemistry


A Diversity and Distribution of Organic Aerosol Functional Groups across Multiple Sites and Seasons. JENNA DITTO, Taekyu Joo, Jonathan Slade, Paul Shepson, Nga Lee Ng, Drew Gentner, Yale University

A Laboratory and Modeling Investigation on the Effects of Amine Uptake on SOA Composition and Its Potential Impacts on Air Quality. JULIA MONTOYA-AGUILERA, Natalie Smith, Shupeng Zhu, Donald Dabdub, Sergey Nizkorodov, University of California, Irvine

A Scalable, Portable, Gas-Aerosol Chemistry Treatment for Atmospheric Models. MATTHEW DAWSON, Christian Guzman, Matthew West, Nicole Riemer, Mario Acosta, Oriol Jorba, Donald Dabdub, Barcelona Supercomputing Center

Accelerated Reaction of Carbonyls in Aerosol Droplets Studied with Droplet Assisted Ionization. YAO ZHANG, Michael J. Apsokardu, Devan E. Kerecman, Murray Johnston, University of Delaware

Acid-base Reactive Uptake of Dimethylamine and Nitric Acid onto Nanoparticles: Cluster Simulations and Nanoparticle Composition Measurements. SABRINA CHEE, Nanna Myllys, Kelley Barsanti, Bryan Wong, James Smith, University of California, Irvine

Aerosol Precursors from Agricultural Emissions. PHILIP SILVA, USDA - Agricultural Research Service

Aerospec – An Online Platform for Analysis of Chemical Composition of Aerosols. HE JIAYANG, Gaurav Mahamuni, Jay Rutherford, Jiawei Zhang, Igor Novosselov, Edmund Seto, University of Washington

An Integrated Organic Aerosol Simulation: From Volatile Precursors to Cloud Droplet Formation. KYLE GORKOWSKI, Camilo Damha, Dalrin Ampritta Amaladhasan, Thomas Preston, Andreas Zuend, McGill University

An Isomer-Resolved Picture of Evolving Organic Aerosol Composition during Heterogeneous OH-Oxidation under Different OH concentrations and Timescales. ZIXU ZHAO, Haofei Zhang, University of California, Riverside

Application of a Reactive Uptake Parameterization Considering Non-Ideal Effects and Phase State in Simulating Secondary Organic Aerosols from Isoprene Expoxydiols Under Controlled Laboratory Measurements. YUZHI CHEN, Yue Zhang, Matthieu Riva, Theran P. Riedel, Havala Pye, Nicole Olson, Ziying Lei, Zhenfa Zhang, Avram Gold, Barbara Turpin, Andrew Ault, Jason Surratt, University of North Carolina at Chapel Hill

Assessing the Contribution of NO3 Radical Chemistry to Nanoparticle Composition in the Boreal Atmosphere. DANIELLE C. DRAPER, Michael Lawler, Theo Kurten, James Smith, University of California, Irvine

Assessment of Model-Simulated Global Atmospheric Ammonia with Satellite Remote Sensing Measurements. ARSHAD NAIR, Fangqun Yu, Gan Luo, The State University of New York at Albany

Atmospheric Chemistry of Volatile Chemical Products. REINA BUENCONSEJO, Sophia Charan, Christopher Kenseth, Paul Wennberg, John Seinfeld, California Institute of Technology

Autoxidation of Peroxy Radicals Formed from OH Radical-initiated Reactions of Trimethylbenzenes. Yuwei Wang, Archit Mehra, Jordan Krechmer, Andrew Lambe, Francesca Majluf, Douglas Worsnop, Manjula Canagaratna, Hugh Coe, LIN WANG, Fudan University

Characterization of Organics in Cloud Water: Measurements from the Present Day and from Decades Past. SARA LANCE, Christopher Lawrence, Jie Zhang, Qi Zhang, Liaquat Husain, Dan Kelting, Elizabeth Yerger, Hunter Favreau, James Schwab, Paul Casson, Richard Brandt, University at Albany, SUNY

Chemical Characterization of Secondary Organic Aerosol Formed from the Photoreactions of Guaiacyl Acetone in an Aqueous Particle Extract. WENQING JIANG, Richie Kaur, Martin Brüggemann, Hartmut Herrmann, Cort Anastasio, Qi Zhang, University of California, Davis

Chemical Composition and Evaporation Rates of Secondary Organic Aerosol from Cooking Oils. MANPREET TAKHAR, Craig A. Stroud, Arthur W. H. Chan, University of Toronto

Chemical Role of Water on Secondary Organic Aerosol Formation and Ageing. CHRISTOPHER SNYDER, Giuseppe Petrucci, University of Vermont

Chemical Transformation of Isoprene Epoxydiol-Derived Organosulfates through Heterogeneous OH Oxidation: A Source of Inorganic Sulfate?. Hoi Ki Lam, Kai Chung Kwong, Hon Yin Poon, James F. Davies, Zhenfa Zhang, Avram Gold, Jason Surratt, MAN NIN CHAN, The Chinese University of Hong Kong

Chlorine-Initiated Photo-Oxidation of α-Pinene Under High NOx Conditions: Oxidation Pathways, Product Distribution and Partitioning Behavior. CATHERINE MASOUD, Lea Hildebrandt Ruiz, University of Texas at Austin

Combined Impacts of Acidity and Viscosity on the Formation of Inorganic-Organic Mixed Isoprene Epoxydiol (IEPOX)-Derived Aerosols. YUE ZHANG, Yuzhi Chen, Ziying Lei, Nicole Olson, Matthieu Riva, Abigail Koss, Zhenfa Zhang, Avram Gold, John Jayne, Douglas Worsnop, Timothy Onasch, Barbara Turpin, Jesse Kroll, Andrew Ault, Jason Surratt, University of North Carolina at Chapel Hill

Compositional Evolution of Secondary Organic Aerosol as Temperature Cycles in Atmospherically Relevant Ranges. Zixu Zhao, Chen Le, Qi Xu, Weihan Peng, Huanhuan Jiang, Ying-Hsuan Lin, David R. Cocker III, HAOFEI ZHANG, University of California, Riverside

Condensed Phase Photochemical Reactions of Secondary Organic Aerosols: Photodegradation & Photosensitized Reactions. VAHE BABOOMIAN, Xinke Wang, Rachel Gemayel, Yiran Gu, Lisa M. Wingen, Chrisitan George, Dmitry Fishman, Sergey Nizkorodov, University of California, Irvine

Constraining the Impact of Microorganisms on Atmospheric Aerosol and Cloud Chemistry. ALISON FANKHAUSER, Dexter D. Antonio, Asher M. Krell, Simone J. Alston, Scott Banta, V. Faye McNeill, Columbia University

Day and Night Variability of Carbonaceous Aerosols over Urban Region of Northern India. ATAR SINGH PIPAL, Ajay Taneja, Dr. B. R. Aambedkar University, Agra, India

Degradant Formation in Cannabis Concentrate Aerosols. ALISHA ORTIZ, Jiries Meehan-Atrash, Robert Strongin, Portland State University

Detailed Comparison of Chamber Measurements and Mechanistic Predictions to Improve Understanding of SOA Formation Mechanisms. JOSHUA MOSS, Abigail Koss, Kevin Nihill, Martin Breitenlechner, Alexander Zaytsev, Richard Valorso, Marie Camredon, Bernard Aumont, Frank Keutsch, Jesse Kroll, MIT

Dynamic Nature of the Particle Phase for SOA Derived from Select Green Leaf Volatiles. KEVIN FISCHER, Giuseppe Petrucci, University of Vermont

Effect of Relative Humidity on Secondary Brown Carbon Formation in Evaporating Droplets. NETHMI KASTHURIARACHCHI, Laura-Helena Rivellini, Xi Chen, Yongjie Li, Alex Lee, National University of Singapore

Effects of Common Inorganic Salts on Aqueous Photochemistry of Secondary Organic Aerosol. ALEXANDRA KLODT, Dian Romonosky, Peng Lin, Julia Laskin, Alexander Laskin, Sergey Nizkorodov, University of California, Irvine

Effects of Emission Reduction on Air Pollution in India. HAO GUO, Sri Kota, Hongliang Zhang, Louisiana State University

Effects of Relative Humidity and Aerosol Liquid Water on the Molecular Composition and Aging of Secondary Organic Aerosols. CYNTHIA WONG, Lauren Fleming, Julia Montoya-Aguilera, Sergey Nizkorodov, University of California, Irvine

Effects of Water-soluble Organic Carbon on Aerosol pH. MICHAEL BATTAGLIA JR., Rodney J. Weber, Athanasios Nenes, Christopher Hennigan, University of Maryland, Baltimore County

Electrospray Surface-enhanced Raman Spectroscopy (ES-SERS) for Studying Organic Coatings of Atmospheric Aerosol Particles. Masao Gen, Ryota Kunihisa, Atsushi Matsuki, CHAK K. CHAN, City University of Hong Kong

Elucidation of the Influence of Specific Meteorological Conditions on the Electrostatic Charging State of Ambient Aerosols by a Parallel Electrode Plate Device. RYOYA TABATA, Ayumi Iwata, Kentaro Fujioka, Tomoaki Okuda, Keio University

Emergence of a New Chemical Regime: Growing Abundance of Water Soluble Organics in Cloud Water Associated with a Growing Ion Imbalance. CHRISTOPHER LAWRENCE, Sara Lance, James Schwab, James Dukett, Kevin Civerolo, Oliver Rattigan, Dan Kelting, Elizabeth Yerger, Hunter Favreau, Paul Casson, Richard Brandt, University at Albany, SUNY

Estimating Vapor Wall-Loss to Improve Organic Aerosol Volatility Distributions. KERRIGAN CAIN, Eleni Karnezi, Spyros Pandis, Carnegie Mellon University

Estimation of Biogenic VOC Emissions and the Corresponding Impact on Ozone and Secondary Organic Aerosol Formation in China. KAI WU, Chengdu University of Information Technology

Experimental Investigation of the Gas- and Particle-Phase Products and Mechanism of Reaction of Δ-3-Carene with NO3 Radicals. MARLA DEVAULT, Paul Ziemann, University of Colorado

Exploring Gelation in Model Marine Aerosol Particles: Micro-Rheological Observations of Ternary Water-Monosaccharide-Calcium Ion Microdroplets. RYAN DAVIS, David Richards, Kristin Trobaugh, Trinity University

Formation of Reactive Oxygen Species by Size-Segregated Particles Collected in Forest and Urban Environments. BRIAN HWANG, Ting Fang, Michihiro Mochida, Manabu Shiraiwa, University of California, Irvine

Global Observations of Ammonium Balance and pH Indicate More Liquid Aerosol and Acidic Conditions than Current Models Predict. BENJAMIN A. NAULT, Pedro Campuzano-Jost, Douglas Day, Jason Schroder, Roya Bahreini, Huisheng Bian, Mian Chin, Simon Clegg, Peter Colarco, John Crounse, Jack Dibb, Michelle Kim, Jack Kodros, Felipe Lopez-Hilfiker, Eloise Marais, Ann M. Middlebrook, J. Andrew Neuman, John Nowak, Jeffrey R. Pierce, Eric Scheuer, Joel A. Thornton, Kostas Tsigaridis, Patrick Veres, Paul Wennberg, Jose-Luis Jimenez, CIRES, University of Colorado, Boulder

Growth and Evaporation Kinetics of Secondary Organic Aerosol as a Function of Relative Humidity. RAHUL ZAVERI, John Shilling, Alla Zelenyuk, Maria Zawadowicz, Kaitlyn J. Suski, Swarup China, Daniel Veghte, Alexander Laskin, Pacific Northwest National Laboratory

Growth Mechanisms of Size-Selected Ammonium Sulfate Seed Particles by Monoterpene Ozonolysis. JUSTIN KRASNOMOWITZ, Michael J. Apsokardu, Devon Haugh, Michael Taylor, Murray Johnston, University of Delaware

H2SO4-H2O Binary and H2SO4-H2O-NH3 Ternary Homogeneous and Ion-mediated Nucleation: Lookup Tables and Comparisons with CLOUD Measurements. FANGQUN YU, Alexey Nadykto, Gan Luo, Jason Herb, The State University of New York at Albany

Healthy and Aphid-stressed Shrubby Plant (Baccharis salicifolia) Metabolomics Impact on Produced Biogenic Secondary Organic Aerosol. FATEMEH KHALAJ, Celia Faiola, Kailen Mooney, Swarup China, Christopher Anderton, Alber Rivas-Ubach, University of California, Irvine

Heterogeneous Chemistry of CaCO3 Aerosols with HNO3 and HCl. HAN HUYNH, V. Faye McNeill, Columbia University

Heterogeneous Oxidation of SO2 in Sulfate Production During Nitrate Photolysis at 300 nm: Effect of pH, Relative Humidity, Irradiation Intensity, and the Presence of Organic Compounds. Masao Gen, Ruifeng Zhang, Dan Dan Huang, Yong Jie Li, CHAK K. CHAN, City University of Hong Kong

Hydroxyl Radicals from Isoprene Hydroxy Hydroperoxide (ISOPOOH) Decomposition Induced by Irons in Water. TING FANG, Pascale Lakey, Jean Rivera-Rios, Frank Keutsch, Manabu Shiraiwa, University of California, Irvine

IEPOX-Derived Organosulfates Contribute a Significant Portion of the Aerosol Mass Spectral Tracer Ion of IEPOX-derived SOA and Its Implications. YUE ZHANG, Yuzhi Chen, Manjula Canagaratna, Sri Hapsari Budisulistiorini, Tianqu Cui, Zhenfa Zhang, Avram Gold, John Jayne, Douglas Worsnop, Barbara Turpin, Jason Surratt, Univ. of North Carolina, Chapel Hill/Aerodyne Research, Inc.

Impact of Photochemical Aging on SOA Yield and Equilibrium Partitioning Predictions. JOHN SHILLING, Maria Zawadowicz, Jiumeng Liu, Rahul Zaveri, Alla Zelenyuk, Pacific Northwest National Laboratory

Impact of Wildfire on Ambient Air Levels of Unsubstituted and Alkylated-PAHs in the Region of Oil Sands Exploitation and Bitumen Processing in Alberta, Canada. ANDRZEJ WNOROWSKI, Jean-Pierre Charland, Environment and Climate Change Canada

Impacts of Water Partitioning and Polarity of Organic Compounds on Secondary Organic Aerosols over Eastern China. JINGYI LI, Qi Ying, Jianlin Hu, Jianjun Chen, Haowen Zhang, Nanjing University of Information Science & Technology

In Situ pH Measurements of Individual Microdroplets Using Aerosol Optical Tweezers to Study the Interplay between Acidity, Phase Separation, Morphology, and Reactivity. Hallie Boyer, Kyle Gorkowski, RYAN SULLIVAN, Carnegie Mellon University

Influence of Evaporation Rate and Suspended Solid Concentration on Dry Particle Formation from Evaporating Aerosol Microdroplets. JUSTICE ARCHER, Florence Gregson, Daniel Hardy, Jim Walker, Rachael E.H. Miles, Jonathan P. Reid, University of Bristol

Investigating Brown Carbon Formation in Ambient Aerosols Undergoing Drying. VIKRAM PRATAP, Michael Battaglia Jr., Annmarie Carlton, Christopher Hennigan, University of Maryland, Baltimore County

Investigating the Atmospheric Age Distribution of Primary and Secondary PM during a Severe Wintertime Pollution Episode. QI YING, Hongliang Zhang, Jianlin Hu, Texas A&M University

Investigation of Secondary Organic Aerosol Formation by a Filter-Based Thermal Desorption System (F-TDIS). YUANLONG HUANG, Christopher Kenseth, John Seinfeld, California Institute of Technology

Investigations of the Mixing of Sulfate Aerosols and Isoprene Epoxydiols in Secondary Organic Aerosol Formation Chamber Experiments. THEODORA NAH, Lu Xu, Kymberlee Osborne-Benthaus, S. Meghan White, Stefan France, Nga Lee Ng, City University of Hong Kong

Isoprene Effects on Biogenic and Inorganic New Particle Formation. LEE TISZENKEL, Ryan Haley, Shanhu Lee, University of Alabama Huntsville

ISORROPIA-MCX: Implementation of the Multicomplex Variable Method into the Aerosol Thermodynamic Model, ISORROPIA. BRYAN BERMAN, Isaiah Sauvageau, Shannon Capps, Ryan Russell, Drexel University

Kinetics and Equilibria for the Multiphase Formation of Hemiacetals and Peroxyhemiacetals. JULIA BAKKER-ARKEMA, Megan Claflin, Paul Ziemann, University of Colorado

Kinetics and Products of Multiphase Ozonolysis of Unsaturated Lipids. ZILIN ZHOU, Shouming Zhou, Jonathan Abbatt, University of Toronto, Canada

Laboratory Studies of ClNO2 Production from N2O5 Uptake on Saline Playa Dusts. CASSANDRA GASTON, Dhruv Mitroo, Thomas Gill, Savannah Haas, Kerri Pratt, Haley Royer, University of Miami

Laboratory Studies of the Photolysis of Particulate Nitrate. QING YE, Qianwen Shi, Jennifer G. Murphy, Jesse Kroll, Massachusetts Institute of Technology

Linking Organic and Sulfate Concentrations to the Annual Phytoplankton Bloom Cycle in the North Atlantic. GEORGES SALIBA, Chia-Li Chen, Savannah Lewis, Lynn Russell, Derek Coffman, Patricia Quinn, Lucia Upchurch, Timothy Bates, Michael Behrenfeld, Scripps Institution of Oceanography

Mechanisms and Compounds in Atmospheric Acid-Base Particle Formation. NANNA MYLLYS, Tinja Olenius, Sabrina Chee, James Smith, University of California, Irvine

Missing Source of Atmospheric Sulfate Formation in Wintertime Beijing Haze: Linking SO2 Oxidation and HONO Chemistry. JUNFENG WANG, Jingyi Li, Jian Zhao, Jianhuai Ye, Xinlei Ge, Yiming Qin, Pengfei Liu, Shaojie Song, Hong Liao, Mindong Chen, Yele Sun, Qi Zhang, Scot T. Martin, Daniel Jacob, Harvard University

Modeling Studies of Isoprene- and Monoterpene-derived Organic Nitrates in a Mixed Forest Environment and the Role of Deposition and Aerosol Multiphase Chemistry. ISAAC CANADA, Paul Shepson, Jonathan Slade, University of California, San Diego

Modeling the Effects of an Updated Isoprene Oxidation Mechanism on Organic Aerosol, Reactive Nitrogen, and Sulfate Budgets. KELVIN BATES, Eleni Dovrou, Vasquez Krystal, Frank Keutsch, Paul Wennberg, Daniel Jacob, Harvard University

Modification of Aerosol Phase, Acidity, and Structure by Heterogeneous and Multiphase Chemistry. ANDREW AULT, Ziying Lei, Nicole Olson, Yuzhi Chen, Yue Zhang, Andrew Lambe, Jason Surratt, University of Michigan

Moving Beyond the Bulk Phase: Kinetics of SO2 Oxidation in Sub-Micron, Deliquesced Aerosol Particles. TENGYU LIU, Jonathan Abbatt, University of Toronto, Canada

NO3-initiated Oxidation of Isoprene: Oxidation Mechanism and Aerosol Formation. BELLAMY BROWNWOOD, Juliane Fry, Reed College

Observation on Chemical Characteristics of Airborne Particles in Xi'an, Inland China during Dust Storm Events with Implications for Heterogeneous Formation of Ammonium Nitrate and Enhancement of N-deposition. GEHUI WANG, Wu Can, Jianjun Li, Cong Cao, Jin Li, East China Normal University

Observed Particle Phase Chemistry Deviates from Brown Carbon Formation in Bulk Solutions. HENSLEY JACK, Adam Birdsall, Valtierra Gregory, Frank Keutsch, Harvard University

Organic Nitrate and Secondary Organic Aerosol Formation from the Reaction of Alpha-Pinene and Nitrate Radical under Simulated Ambient Conditions. GUY BURKE, Yichen Li, Tran Nguyen, UC Davis

Overview of the ACMCC Particulate Organonitrates (pON) Experiment. ALEXANDRE ALBINET, Jean-Eudes Petit, Andrew Lambe, Athina-Cerise Kalogridis, Liine Heikkinen, Frans Graeffe, Manuela Cirtog, Anaïs Féron, James Allan, Zainab Bibi, Tanguy Amodeo, Nicolas Karoski, Robin Aujay-Plouzeau, Laurent Meunier, Valerie Gros, Nicolas Bonnaire, Roland Sarda-Esteve, Mikael Ehn, Tuija Jokinen, Minna Aurela, Cristina Marin, Evelyn Freney, Leah Williams, Olivier Favez, et al., INERIS, France

Oxidation of Reduced Sulfurs and Amines: Characterization and Mechanism Development. PAUL VAN ROOY, Kathleen Purvis-Roberts, Philip Silva, Matthew Nee, David R. Cocker III, University of California, Riverside

Ozonolysis of Polycyclic Aromatic Hydrocarbons on the Surfaces of Secondary Organic Aerosol Particles. ALLA ZELENYUK, Kaitlyn J. Suski, David Bell, Dan Imre, Simeon Schum, Lynn Mazzoleni, ManishKumar Shrivastava, Amber Kramer, Staci L. Simonich, Pacific Northwest National Laboratory

Particle, Volatile Organic Compounds and Polycyclic Aromatic Hydrocarbon Emission Flaring from Hydrofracking. OLANREWAJU WASIU BELLO, Thi Duong Bui, Benjamin Savareear, J. James Harynuk, Larry W. Kostiuk, Jason S. Olfert, University of Alberta

Photodegradation of Alpha-pinene Secondary Organic Aerosol. Veronika Pospisilova, DAVID BELL, Imad El Haddad, Lamkaddam Houssni, Amelie Bertrand, Josef Dommen, Andre S.H. Prévôt, Urs Baltensperger, Jay G. Slowik, Paul Scherrer Institute

Photolysis of Aqueous Atmospheric Aerosol Mimics. MELISSA GALLOWAY, Jacqueline Sharp, Shiqing Ma, Joseph Woo, Lafayette College

Predicting the Phase State of Atmospherically Relevant Aerosols and Its Impact on Multiphase Chemistry in a Regional-scale Atmospheric Model. QUAZI RASOOL, Ryan Schmedding, Yue Zhang, Havala Pye, Haofei Zhang, Yuzhi Chen, Jason Surratt, William Vizuete, University of North Carolina at Chapel Hill

Probing Reaction Rates in Single Aerosol Droplets Using a Branched Quadrupole Trap. GRAZIA ROVELLI, Michael Jacobs, Kevin Wilson, Lawrence Berkeley National Laboratory

Raoult was Right: A Fresh Old Look at Solution Thermodynamics. ANTHONY S. WEXLER, Ahmad Ikram, Simon Clegg, Devis Di Tommaso, Xiangwen Wang, University of California, Davis

Recent Declines in Water Uptake and Acidity of Inorganic Aerosols during Beijing Winter Haze Events. SHAOJIE SONG, Harvard University

Role of Particle Composition in the Heterogeneous Reactivity of Carboxylic Acid Aerosol. REBECCA RAPF, Kevin Wilson, Lawrence Berkeley National Laboratory

Secondary Aerosol Formation from Oxidation of Dimethyl Selenide. ROYA BAHREINI, Alexander Frie, Ying-Hsuan Lin, C.M. Sabbir Ahmed, University of California, Riverside

Secondary Organic Aerosol Formation from Healthy and Aphid-Stressed Scots Pine Emissions. CELIA FAIOLA, Iida Pullinen, Angela Buchholz, Fatemeh Khalaj, Arttu Ylisirniö, Eetu Kari, Pasi Miettinen, Jarmo Holopainen, Minna Kivimäenpää, Siegfried Schobesberger, Taina Yli-Juuti, Annele Virtanen, University of California, Irvine

Secondary Organic Aerosol Yields of Volatile Chemical Products. SOPHIA CHARAN, Reina Buenconsejo, Yuanlong Huang, John Seinfeld, California Institute of Technology

Simulation of SOA Formation from the Photooxidation of Gasoline in the Presence of NOx and Electrolytic Inorganic Aerosol. MYOSEON JANG, Chufan Zhou, Zechen Yu, Sanghee Han, University of Florida

Simulation of SOA Formation Using Gas-Wall Process Free Model parameters in the Presence of Inorganic Salts Containing Electrolytes under Various NOx Levels. SANGHEE HAN, Myoseon Jang, University of Florida

Size-resolved Chemical Composition of Sub-40 nm Particles during New Particle Formation and Growth Events in Beijing. XIAOXIAO LI, Yuyang Li, Chao Yan, Sabrina Chee, Jiming Hao, James Smith, Jingkun Jiang, Tsinghua University

Spreading Ratio and Morphology of Size-dependent Secondary Organic Aerosols. ZIYING LEI, Nicole Olson, Yue Zhang, Yuzhi Chen, Andrew Lambe, Natalie White, Joanna Atkin, Jason Surratt, Andrew Ault, University of Michigan

Sulfate Formation from SO2 Uptake onto Organic Aerosol. Shunyao Wang, William Tsui, V. Faye McNeill, Jonathan Abbatt, ARTHUR W. H. CHAN, University of Toronto

Temperature Effects on Sulfuric Acid Aerosol Nucleation and Growth: Initial Results from the TANGENT Study. LEE TISZENKEL, Chris Stangl, Justin Krasnomowitz, Qi Ouyang, Michael J. Apsokardu, Murray Johnston, Shanhu Lee, University of Alabama Huntsville

Temporal Distribution of Short-Lived Climate Forcers, Atmospheric Processes, and Sources at IGP-CARE Site in India for Two Years in-situ Measurements. RAVI KANT PATHAK, Harsh Raj Mishra, Bhilok Chand, Jai Prakash, Mattias Hallquist, Gazala Habib, Johan Boman, Håkan Pleijel, University of Gothenburg, Sweden

Terpene Emissions and Their Oxidation Products in Forest Areas: Insight from Vocus PTR-TOF Measurements. HAIYAN LI, Pekka Rantala, Kaspar Daellenbach, Jordan Krechmer, Douglas Worsnop, Markku Kulmala, Matthieu Riva, Mikael Ehn, Federico Bianchi, University of Helsinki

The Dependence of SOA Formation on NOx Conditions: Effects of Branching Ratio of RO2 +NO Pathway. WEIHAN PENG, William Porter, David R. Cocker III, University of California, Riverside

The Effect of Molecular Weight on the Phase Separation of Polymer-Polymer Aerosol Particles. EMILY-JEAN OTT, Miriam Freedman, The Pennsylvania State University

The Effect of OH Scavengers on the Particle Phase Composition of α-Pinene Secondary Organic Aerosol. DAVID BELL, Veronika Pospisilova, Amelie Bertrand, Dongyu S. Wang, Chuan Ping Lee, Felipe Lopez-Hilfiker, Claudia Mohr, Wei Huang, Imad El Haddad, Jay G. Slowik, Andre S.H. Prévôt, Josef Dommen, Urs Baltensperger, Paul Scherrer Institute

The Effect of Particle Physicochemical Properties on the Uptake of Semi-volatile and Intermediate-volatility Organic Molecules. YIMING QIN, Junfeng Wang, Yali Lei, Jianhuai Ye, Scot T. Martin, Harvard University

The Effects of Aerosol-Phase State and Chemical Composition on Multiphase Chemistry Leading to Isoprene-Derived Secondary Organic Aerosol Formation. YUE ZHANG, Yuzhi Chen, Andrew Lambe, Nicole Olson, Ziying Lei, Manjula Canagaratna, Jordan Krechmer, Rebecca Craig, Zhenfa Zhang, Avram Gold, John Jayne, Douglas Worsnop, Timothy Onasch, Cassandra Gaston, Joel A. Thornton, William Vizuete, Andrew Ault, Jason Surratt, Univ. of North Carolina, Chapel Hill/Aerodyne Research, Inc.

The Role of the Solvent Environment on Physical Properties in Secondary Organic Aerosol Mimicking Solutions. Rebecca Miller, Hannah Inman, Emmaline Longnecker, Lucy Metz, ANDREW BERKE, Smith College

Toward Development of a Metric to Relate Molecular Characteristics with Optical Properties for Biomass Burning Aerosol. NISHIT SHETTY, Apoorva Pandey, Simeon Schum, Maryam Khaksari, Lynn Mazzoleni, Rajan K. Chakrabarty, Washington University in St. Louis

Translating Environmental Chamber Data for Secondary Organic Aerosol for Use in Atmospheric Models. CHARLES HE, Ali Akherati, Christopher Cappa, Jeffrey R. Pierce, ManishKumar Shrivastava, Benjamin Murphy, Shantanu Jathar, Colorado State University

Unambiguous Elucidation of the Structure and Formation Mechanism of Dimer Esters in Monoterpene Secondary Organic Aerosol. CHRISTOPHER KENSETH, Yuanlong Huang, Nicholas Hafeman, Nathan Dalleska, Brian Stoltz, John Seinfeld, California Institute of Technology

Urban Pollution Greatly Enhances Formation of Natural Aerosols over the Pristine Amazon. MANISHKUMAR SHRIVASTAVA, Meinrat O. Andreae, Paulo Artaxo, Henrique Barbosa, Larry Berg, Joel Brito, Joseph Ching, Richard Easter, Jiwen Fan, Jerome Fast, Marianne Glasius, Allen Goldstein, Eliane Gomes, Helber Gomes, Dasa Gu, Alex Guenther, Shantanu Jathar, Saewung Kim, Sijia Lou, Scot T. Martin, Alla Zelenyuk, Rahul Zaveri, John Shilling, Joel A. Thornton, et al., Pacific Northwest National Laboratory

Using GECKO-A to Study Secondary Organic Aerosol Formation from Camphene Relative to a-Pinene and Limonene. ISAAC AFREH, Bernard Aumont, Marie Camredon, Kelley Barsanti, University of California, Riverside

Using Nitric Acid- Nitrate Partitioning and Aerosol Composition Data to Constrain Gas-phase Ammonia Levels and Aerosol pH. IFAYOYINSOLA IBIKUNLE, Rodney J. Weber, Athanasios Nenes, Georgia Institute of Technology

Viscosity of SOA Formed from Stressed and Healthy Pine Tree Emissions under Varying Oxidation Levels. NATALIE SMITH, Jesse Crescenzo, Anusha P.S. Hettiyadura, Ying Li, Celia Faiola, Alexander Laskin, Allan Bertram, Manabu Shiraiwa, Sergey Nizkorodov, University of California, Irvine

Volatility Change during Droplet Evaporation of Pyruvic Acid. SARAH SUDA PETTERS, Thomas Hilditch, Sophie Tomaz, Rachael E.H. Miles, Jonathan P. Reid, Barbara Turpin, University of North Carolina at Chapel Hill

Volatility of Atmospheric Organic Nitrate Formed from Hydroxyl and Nitrate Radical Oxidation of α-Pinene and β-Pinene. MASAYUKI TAKEUCHI, Justin Min, Rodney J. Weber, Nga Lee Ng, Georgia Institute of Technology