A016
Air Quality Trends and Challenges in Urban Area

Session ID#: 159288

Session Description:
Air quality remains a significant public health challenge facing large fractions of the population globally. A wide range of source types and source activity levels couple with variations in meteorology and climate to yield a wide range of air quality challenges in urban areas. This session solicits submissions from observational, laboratory, and modeling studies on the improvements and challenges in urban air quality.  Field observations from recent campaigns (e.g., 2018 LISTOS, 2021 RECAP, 2021 TRACER-AQ, 2021 OSCA, 2018 HALO, etc.), using advanced instrumentation, low-cost sensors and remoting sensing, are encouraged. Studies on the underlying causes of air quality trends, such as the recent lack of improvement in some North America cities and increases in ozone pollution in China despite emissions reductions, are of great interest. Laboratory studies for understanding the atmospheric chemical processes of urban emissions and their interactions with other emissions sources (e.g, wildfires, agriculture, vegetation) are also welcome. Modeling studies that use observations and laboratory data to improve predictive skills of air quality are encouraged. Relevant air quality issues include, but are not limited to, ozone, fine particles, smoke from wild and prescribed fires, and long-term air quality trends.
Index Terms:

0305 Aerosols and particles [ATMOSPHERIC COMPOSITION AND STRUCTURE]
0317 Chemical kinetic and photochemical properties [ATMOSPHERIC COMPOSITION AND STRUCTURE]
0345 Pollution: urban and regional [ATMOSPHERIC COMPOSITION AND STRUCTURE]
0365 Troposphere: composition and chemistry [ATMOSPHERIC COMPOSITION AND STRUCTURE]


Primary Convener:  Lu Xu, CIRES and NOAA ESRL, Chemical Sciences Laboratory, Boulder, United States; CIRES and NOAA Chemical Sciences Laboratory, Boulder, United States
Conveners:  James D Lee, University of York, Wolfson Atmospheric Chemistry Laboratories, Department of Chemistry, York, United Kingdom, Georgios Gkatzelis, Forschungszentrum Jülich, Institute of Energy and Climate Research, Troposphere (IEK-8), Jülich, Germany and Pieternel Levelt, National Center for Atmospheric Research, ACOM, Boulder, United States
 
Studying the Drivers of Ozone in Eastern Germany using Machine Learning (1046652)
Dominik van Pinxteren, Yaru Wang, Vanessa Engelhardt and Hartmut Herrmann, Leibniz Institute for Tropospheric Research (TROPOS), Atmospheric Chemistry Department (ACD), Leipzig, Germany
 
Mismatches Between Inventories and Airborne Eddy Covariance Flux Measurements in Emissions of Volatile Organic Compounds over Los Angeles (Invited) (1054001)
Eva Y. Pfannerstill1, Caleb Arata1, Qindan Zhu1, Robin J Weber2, Bryan Place1, Paul J Wooldridge1, Benjamin Schulze3, Ryan Xavier Ward4, Roy Woods5, John Seinfeld6, Anthony Bucholtz5, Ronald C Cohen2 and Allen H Goldstein2, (1)University of California Berkeley, Berkeley, CA, United States, (2)University of California Berkeley, Berkeley, United States, (3)California Institute of Technology, Department of Environmental Science and Engineering, Pasadena, United States, (4)California Institute of Technology, Pasadena, CA, United States, (5)Naval Postgraduate School, Monterey, CA, United States, (6)California Institute of Technology, Pasadena, United States
 
Investigating the Trends, Ozone Formation Potential and Sources of Ambient VOCs at an Urban Site in the UK from 1997-2019 (1056208)
Rayne Holland, Md Anwar H Khan and Dudley E Shallcross, University of Bristol, School of Chemistry, Bristol, United Kingdom
 
Ozone Source Apportionment in Los Angeles using PMF Analysis of VOCs and Direct Ozone Sensitivity Measurements (1056903)
Shenglun Wu, Michael Kleeman, Thomas Young, Peter Green, Christopher Alaimo and Luann Wong, University of California Davis, Davis, United States
 
Drivers of Increasing Ozone and the Implications of Clean Air Policies in China from 2013 to 2020 (1057951)
Yuxi Liu1, Guannan Geng2, Qiang Zhang1, Jing Cheng3, Yang Liu1, Qiangyang Xiao2 and Qinren Shi2, (1)Department of Earth System Science, Tsinghua University, Beijing, China, (2)School of Environment, Tsinghua University, Beijing, China, (3)University of California Irvine, Department of Earth System Science, Irvine, United States
 
A Numerical Study on the Effects of Building Balcony and Atmospheric Stability on Pollutant Dispersion in An Urban Street Canyon (1061724)
Minji Kim, Pukyong National University, Department of Environmental Atmospheric Sciences, Busan, Korea, Republic of (South) and JaeJin Kim, Pukyong National University, Department of Environmental Atmospheric Sciences, Busan, South Korea
 
Machine Learning Modelling for Studying the Impact of the COVID-19 Lockdown on Air Pollution Levels in Air Quality Measurement Sites in Manchester, UK and Its Characteristics: Analysis of Meteorological Factors, Traffic Factors, and Historical Data (1065982)
Tong Wu, University of Manchester, Department of Earth and Environmental Sciences, Manchester, United Kingdom and Hugh Coe, University of Manchester, Department of Earth and Environmental Science, Manchester, United Kingdom
 
Combining Measurements from Stationary and Mobile Platforms Over the Los Angeles Basin to Comprehensively Evaluate the Weather Research and Forecasting Model During SUNVEx (1066882)
Edward Strobach1, Bert Verreyken2, Brian Carroll1, Alan Brewer3, Harold Gamarro4, Brandi McCarty5, Brian C McDonald6, Qindan Zhu7, Wayne M Angevine8, Rebecca Schwantes9, Yelena L Pichugina10, Robert M Banta10, Siyuan Wang6 and Sunil Baidar11, (1)NOAA Chemical Sciences Laboratory & CIRES at University of Colorado Boulder, Boulder, United States, (2)NRC/NOAA CSL, Boulder, United States, (3)NOAA/ESRL/CSL, Boulder, CO, United States, (4)CUNY City College of New York, Department of Mechanical Engineering, New York, United States, (5)Cooperative Institute for research in Environmental Sciences, University of Colorado, Boulder, United States, (6)NOAA Chemical Sciences Laboratory, Boulder, United States, (7)CIRES/NOAA CSL, Boulder, United States, (8)CIRES, Boulder, CO, United States, (9)National Center for Atmospheric Research, Atmospheric Chemistry Observations & Modeling Laboratory, Boulder, United States, (10)NOAA/ESRL/CSD, Boulder, CO, United States, (11)Cooperative Institute for Research in Environmental Sciences (CIRES), Boulder, CO, United States
 
Estimate of OH trends over one decade in North American cities (Invited) (1068973)
Qindan Zhu, University of California Berkeley, Berkeley, CA, United States, Joshua Laughner, California Institute of Technology, Pasadena, United States; Jet Propulsion Laboratory, California Institute of Technology, Pasadena, United States and Ronald C Cohen, UC Berkeley, Berkeley, United States
 
Clustering Analysis of Regional PM10 Concentration Variability in the Seoul Metropolitan Area, Republic of Korea (1070204)
Woosuk Choi, Sejong University, Seoul, Korea, Republic of (South)
 
Determination of the Chemical Drivers of Ozone Formation in Urban Areas in the Great Lakes Region to Inform Development of Emissions Control Strategies (1072495)
Angela F Dickens1, Tsengel Nergui1, Mark Janssen1, Juanito Jerrold Mariano Acdan2, R. Bradley Pierce3 and Zachariah Adelman1, (1)Lake Michigan Air Directors Consortium, Hillside, United States, (2)University of Wisconsin Madison, Atmospheric and Oceanic Sciences, Madison, United States, (3)Space Science and Engineering Center, University of Wisconsin Madison, Madison, United States
 
Molecular structure impacts on alkoxy radical fate and aerosol formation from glycol ethers during OH-initiated oxidation. (1075997)
Tucker Melles1, Cort Zang1, Damien Ketcherside2, Abraham Dearden3, Matthew Mitchell Coggon4, Lauren Garofalo1, Alison Piasecki4,5, Ann Middlebrook4, Chelsea Stockwell4,5, Lu Xu4,5, Carsten Warneke4, Lu Hu2, Delphine Farmer1, Shantanu Jathar3 and Megan D Willis1, (1)Colorado State University, Department of Chemistry, Fort Collins, United States, (2)University of Montana, Department of Chemistry and Biochemistry, Missoula, United States, (3)Colorado State University, Department of Mechanical Engineering, Fort Collins, United States, (4)NOAA Earth System Research Laboratory, Chemical Sciences Division, Boulder, United States, (5)Cooperative Institute for Research in Environmental Sciences, Boulder, United States
 
Modeling of Regionwide versus Location-Specific Management of Emissions and Air Quality (1077117)
Yuhan Wang1,2, Lucas A J Bastien1, Ling Jin1 and Robert Harley2, (1)Lawrence Berkeley National Laboratory, Berkeley, United States, (2)University of California Berkeley, Berkeley, United States
 
Nocturnal Pollution Uptake Contributes Significantly To The Total Stomatal Uptake Of Mangifera Indica. (1077270)
Savita Datta1, Anita Sharma2 and Baerbel Sinha2, (1)Indian Institute of Science Education and Research Mohali, Department of Earth and Environmental Sciences, Mohali, India, (2)Indian Institute of Science Education and Research Mohali, Department of Earth and Environmental Sciences, SAS Nagar, India
 
Mass-Conserving Inversion of NOx Emissions and Inferred Combustion Technologies in Energy Rich Northern China Based on Multi-Year Daily Remotely Sensed and Continuous Surface Measurements (1081253)
Xiaolu Li1,2, Jason Blake Cohen2, Kai Qin2 and Hong Geng1, (1)Shanxi University, Institute of Environmental Science, Taiyuan, China, (2)China University of Mining and Technology, School of Environment Science and Spatial Informatics, Xuzhou, China
 
Changes of PM2.5 mass concentration and chemical constituents during the COVID-19 lockdown period in an industrial city, Korea (1083125)
Young Su Lee1, Keun Taek Kim1, Hyeri Jo2 and Jae Young Kim1, (1)Seoul National University, Seoul, South Korea, (2)Seoul National University, Seoul, Korea, Republic of (South)
 
A Chemical Ionization Mass Spectrometer Utilizing Ammonium Ions (NH4+ CIMS) for Measurements of Organic Compounds in the Atmosphere (1083490)
Lu Xu1, Matthew Mitchell Coggon2, Chelsea Stockwell3, Jessica Gilman4, Michael A Robinson5, Martin Breitenlechner6, Aaron Lamplugh7, Andrew James Newman8, Gordon Novak9, Patrick R Veres10, Steve Brown4 and Carsten Warneke4, (1)Cooperative Institute for in Environmental Sciences, Boulder, United States, (2)California Institute of Technology, Department of Chemical Engineering, Pasadena, United States, (3)University of Montana, Missoula, MT, United States, (4)NOAA Chemical Sciences Laboratory, Boulder, United States, (5)CIRES / NOAA Chemical Sciences Laboratory, Boulder, United States, (6)Cooperative Institute for Research in Environmental Sciences (CIRES), Boulder, CO, United States, (7)University of Colorado, Boulder, United States, (8)NCAR, Boulder, United States, (9)NOAA, Boulder, United States, (10)NOAA ESRL, Chemical Sciences Laboratory, Boulder, United States
 
Using Mobile Monitoring to Understand Vehicle Emissions in Urban Areas (1085984)
Shona Wilde1, Naomi J. Farren1, Rebecca L Wagner1, James D Lee1, Samuel Wilson1, Lauren J Padilla2, Ramon Alvarez2, Daniel Peters2, Greg Slater3 and David Carslaw1, (1)University of York, Wolfson Atmospheric Chemistry Laboratories, Department of Chemistry, York, United Kingdom, (2)Environmental Defense Fund, Boston, United States, (3)Environmental Defense Fund Europe, London, United Kingdom
 
Large-eddy simulation of urban air quality: A 'Ruisdael' case study of the city of Rotterdam (1086774)
Stephan R De Roode, Delft University of Technology, Delft, Netherlands
 
Applications of TROPOMI NO2 to understand urban NO2 and NOX emissions (1088458)
Daniel L Goldberg1, Gaige Hunter Kerr2, Katelyn O'Dell3, Emily Richardt4, Madankui Tao5, Siqi Ma6, Daniel Tong7, Monica Harkey8, Jeremiah Johnson9, Greg Yarwood10, Benjamin de Foy11, Laura Margaret Judd12, Tracey Holloway13 and Susan Anenberg2, (1)George Washington University, Department of Environmental and Occupational Health, Washington, United States, (2)George Washington University, Department of Environmental and Occupational Health, Washington, DC, United States, (3)George Washington University, Washington, DC, United States, (4)George Washington University, Environmental and Occupational Health, Washington, DC, United States, (5)Columbia University of New York, New York City, United States, (6)George Mason University Fairfax, Fairfax, United States, (7)George Mason University Foundation Inc., Columbia, United States, (8)University of Wisconsin-Madison, Madison, WI, United States, (9)RAMBOLL ENVIRON International Corporation - ENVIRON, Novato, CA, United States, (10)Ramboll, Novato, CA, United States, (11)Saint Louis University, Earth and Atmospheric Sciences, Saint Louis, United States, (12)NASA Langley Research Center, Hampton, VA, United States, (13)University of Wisconsin Madison, Madison, WI, United States
 
Generating High-Resolution PM2.5 using a Two-stage Machine Learning Approach with Low-Cost Air Quality Sensors and Satellite Observations (1088962)
Ting-Yu Dai, University of Texas at Austin, Austin, TX, United States, Alqamah Sayeed, University of Houston, Houston, TX, United States, Nhu Nguyen Minh Tran, University of Alabama in Huntsville, Huntsville, United States, Pawan Gupta, Universities Space Research Association, Huntsville, AL, United States, Dev Niyogi, University of Texas at Austin, Jackson School of Geosciences, Austin, TX, United States, Prakash Doraiswamy, RTI International, Research Triangle Park, NC, United States and Zoltan Nagy, University of Texas at Austin, Department of Civil, Architectural and Environmental Engineering, Austin, United States
 
Summertime Variations in Atmospheric Particulate-bound Metals in Chicago Before (2018, 2019), During (2020), and After (2021) COVID-19 Restrictions (1090321)
Jillian Cellini, University of Illinois at Chicago, Chicago, United States, Kelsey Foss, University of Illinois at Chicago, Chicago, IL, United States and Kathryn Nagy, Univ Illinois at Chicago, Chicago, IL, United States
 
Evaluation of Model Simulated Ozone and its Precursors Using High-Resolution Model Simulations during the Michigan-Ontario Ozone Source Experiment (MOOSE) (1090562)
Noribeth Mariscal1, Yaoxian Huang1, Louisa K Emmons2, Duseong Jo2, Ying Xiong1 and Jiajue Chai3, (1)Wayne State University, Civil & Environmental Engineering, Detroit, MI, United States, (2)National Center for Atmospheric Research, Atmospheric Chemistry Observations & Modeling Laboratory, Boulder, CO, United States, (3)Brown University, Department of Earth, Environmental and Planetary Sciences, and Institute at Brown for Environment and Society, Providence, RI, United States
 
High-resolution Modeling and Evaluation of Nitrogen Oxide Concentrations at Urban and Regional Scales During the June 2021 SUNVEx Campaign (1091536)
Katelyn Yu, University of California, Berkeley, Berkeley, CA, United States, Brian C McDonald, NOAA Chemical Sciences Laboratory, Boulder, United States, Meng Li, NOAA ESRL/CSL and CU Boulder/CIRES, Boulder, United States, Colin Harkins, Cooperative Institute for Research in Environmental Sciences, University of Colorado Boulder, Boulder, United States, Jian He, NOAA ESRL/CSL and CU Boulder/CIRES, University of Colorado, Boulder, United States, Qindan Zhu, University of California, Berkeley, Earth and Planetary Sciences, Berkeley, United States, Gregory J Frost, NOAA Chemical Sciences Laboratory, NOAA Earth System Research Laboratories, Boulder, United States and Robert Harley, University of California, Berkeley, Berkeley, United States
 
Air Quality over Texas: The Trends of Greenhouse Gases and Covariations of Air Pollution (1095060)
Shannon Brown, Baylor University, Waco, TX, United States
 
Elucidating contributions of anthropogenic volatile organic compounds and particulate matter to ozone trends over China (1095603)
Chi Li1,2, Qindan Zhu3, Xiaomeng Jin2 and Ronald C Cohen2, (1)Washington University in St. Louis, Energy, Environmental, and Chemical Engineering, St. Louis, United States, (2)University of California, Berkeley, Chemistry, Berkeley, United States, (3)University of California, Berkeley, Earth and Planetary Sciences, Berkeley, United States
 
Multi-Site Comparison of Summertime Atmospheric Aerosols in New York City (1096499)
Tori Hass-Mitchell1, Taekyu Joo1, Benjamin Nault2, Manjula R Canagaratna2, Catelynn Soong1, Jordan Krechmer2, Andrew T Lambe2 and Drew R Gentner1, (1)Yale University, Department of Chemical and Environmental Engineering, New Haven, United States, (2)Aerodyne Research Inc., Billerica, United States
 
Disentangling the Effects of Meteorological Variability and Wildfires on PM2.5 Concentrations in California using Machine Learning (1100948)
Kyleen Liao, Saratoga High School, Saratoga, United States, Kara Lamb, Columbia University, Earth and Environmental Engineering, New York, United States, Jatan Buch, Lamont-Doherty Earth Observatory, Palisades, United States and Pierre Gentine, Columbia University, Department of Earth and Environmental Engineering, New York, NY, United States
 
Stage-wise change analysis of air quality during COVID outbreak in National Capital Region, India. (1107919)
Eshta Ranyal1, Prathiba A.P1 and Kamal Jain2, (1)Indian Institute of Technology Roorkee, Roorkee, India, (2)Indian Institute of Technology Roorkee, Department of Civil Engineering, Roorkee, India
 
Sea Breezes Role on Air Quality in Coastline City in the Red Sea: Jeddah as a Case Study (1108908)
Khalid Alzahrani1,2, James D Allan3,4 and Hugh Coe4, (1)King Abdulaziz University, Department of Environmental Sciences,, Jeddah, Saudi Arabia, (2)University of Manchester, Department of Earth and Environmental Sciences, Manchester, M13, United Kingdom, (3)National Centre for Atmospheric Science, University of Manchester, Manchester, United Kingdom, (4)University of Manchester, Department of Earth and Environmental Science, Manchester, United Kingdom
 
Policy-related Gains in Urban Air Quality May Be Offset by Increased Emissions in a Warming Climate (1110831)
Cong Cao, Stony Brook University, School of Marine and Atmospheric Sciences, Stony Brook, NY, United States, Drew R Gentner, Yale University, Department of Chemical and Environmental Engineering, New Haven, United States, Roisin Commane, Columbia University, New York, United States, Ricardo Toledo-Crow, City University of New York, New York, NY, United States and John E Mak, SUNY Stony Brook, School of Marine and Atmospheric Sciences, Stony Brook, NY, United States
 
Evaluating WRF-CAMx offshore ozone simulation during TRACER-AQ 2021 in Houston, TX (1112237)
Wei Li1, Yuxuan Wang1, Xueying Liu1, Claudia Bernier2, Ehsan Soleimanian1, Shailaja Wasti2, Travis Griggs1, James Flynn1 and Paul J. Walter3, (1)University of Houston, Department of Earth and Atmospheric Sciences, Houston, TX, United States, (2)University of Houston, Department of Earth and Atmospheric Sciences, Houston, United States, (3)St. Edward's University, School of Natural Sciences, Austin, TX, United States
 
Modeling air quality in the South Coast Air Basin of California during the June 2021 RECAP field campaign (1113542)
Jeremy Avise1,2, Majiong Jiang2, Chenxia Cai3, Zhan Zhao4 and Jianjun Chen5, (1)California Environmental Protection Agency Air Resources Board, Civil and Environmental Engineering, Sacramento, United States, (2)California Air Resources Board, Sacramento, United States, (3)California Air Resources Board, Sacramento, CA, United States, (4)California Environmental Protection Agency Air Resources Board, Sacramento, United States, (5)Dublin, CA, UNITED STATES
 
Emission Analysis of Nitrogen Oxides, Carbon Monoxide, Methane, Ammonia and Carbon Dioxide from an Urban Background Supersite in Birmingham (1117005)
Siqi Hou1, William Bloss2, Roy M Harrison2 and Zongbo Shi2, (1)University of Birmingham, Birmingham, B15, United Kingdom, (2)University of Birmingham, School of Geography, Earth and Environmental Sciences, Birmingham, United Kingdom
 
Ground Level Ozone Trends Across the Climate Regions of the Contiguous United States During the Most Recent Climate Period, 1991-2020 (1118531)
Seyedali Mousavinezhad1, Yunsoo Choi1, Masoud Ghahremanloo2, Arman Pouyaei3 and Bavand Sadeghi1, (1)University of Houston, Houston, TX, United States, (2)University of Houston, Houston, United States, (3)University of Houston, Department of Earth and Atmospheric Sciences, Houston, TX, United States
 
Sensitivity of Air Quality (AQ) in Eastern Canada to Transboundary Pollution and Meteorology: Understanding potential Climate-AQ feedbacks (1121873)
Patrick L Hayes and Robin Stevens, University of Montreal, Montreal, QC, Canada
 
Partitioning of Urban NOx Between Short- and Long-Lived Reservoirs and Its Impact on Regional Ozone Production (1122192)
Benjamin Nault1, Katherine Travis2, James H Crawford3, Donald Ray Blake4, William H Brune5, Pedro Campuzano Jost6, Carmichael Gregory7, SeogYeon Cho8, Ronald C Cohen9, John D Crounse10, Joshua P DiGangi3, Glenn S Diskin11, Louisa K Emmons12, Alan Fried13, Samuel R Hall14, L Gregory Huey15, Jose L. Jimenez16, Cheol-Hee Kim17, Soontae Kim18, Kyung-Eun Min19, Rokjin Park20, Gabriele Pfister21, Sally E. Pusede22, Paul Romer Present23, Pablo Saide24, Isobel J Simpson25, Alex Teng26, Andrew John Weinheimer27, Paul O Wennberg28 and Armin Wisthaler29, (1)Aerodyne Research Inc., Billerica, United States, (2)Harvard University, Cambridge, MA, United States, (3)NASA Langley Research Center, Hampton, VA, United States, (4)University of California Irvine, Irvine, United States, (5)Pennsylvania State University, University Park, PA, United States, (6)University of Colorado at Boulder, Cooperative Institute for Research in Environmental Sciences (CIRES) and Department of Chemistry, Boulder, CO, United States, (7)University of Iowa, Center for Global and Regional Environmental Research, Iowa City, IA, United States, (8)Inha University, Incheon, Korea, Republic of (South), (9)UC Berkeley, Berkeley, United States, (10)California Institute of Technology, Division of Geological and Planetary Sciences, Pasadena, United States, (11)NASA Langley Research Ctr, Hampton, VA, United States, (12)National Center for Atmospheric Research (NCAR), Atmospheric Chemistry Observations & Modeling Laboratory (ACOM), Boulder, United States, (13)University of Colorado at Boulder, Boulder, United States, (14)NCAR, Denver, CO, United States, (15)Georgia Institute of Technology, School of Earth and Atmospheric Sciences, Atlanta, United States, (16)Cooperative Institute for Research in Environmental Sciences, Boulder, United States, (17)Pusan National University, Department of Atmospheric Sciences, Busan, South Korea, (18)Ajou University, Environmental and Safety Engineering, Suwon, South Korea, (19)GIST Gwangju Institute of Science and Technology, School of Earth Sciences and Environmental Engineering, Gwangju, South Korea, (20)Seoul National University, Seoul, South Korea, (21)NCAR/ACD, Boulder, CO, United States, (22)University of Virginia, Environmental Sciences, Charlottesville, VA, United States, (23)University of California Berkeley, Berkeley, CA, United States, (24)University of California Los Angeles, Department of Atmospheric and Oceanic Sciences, Los Angeles, United States, (25)University of California Irvine, Irvine, CA, United States, (26)California Institute of Technology, Pasadena, CA, United States, (27)NCAR, Atmospheric Chemistry Observations and Modeling Laboratory, Boulder, CO, United States, (28)California Institute of Technology, Department of Environmental Science and Engineering, Pasadena, United States, (29)University of Oslo, Oslo, Norway
 
Surface Ozone in South Korea and the Seoul Metropolitan Area: 2015-2019 Trends and Background Contributions (1125898)
Nadia Kathryn Colombi1, Daniel J. Jacob2, Laura Yang2, Shixian Zhai1 and Viral Shah1, (1)Harvard University, Cambridge, MA, United States, (2)Harvard University, Cambridge, United States
 
Characterizing the Impact of Cooking and VCP Emissions on Urban VOCs in Las Vegas and Los Angeles in Preparation for AEROMMA 2023 (1128935)
Carsten Warneke1, Chelsea Stockwell2, Lu Xu3, Qindan Zhu4,5, Jessica Gilman6, Aaron Lamplugh7, Kristen Zuraski3,8, Jeff Peischl9, Henry Bowman10, Brian C McDonald6, Rebecca Schwantes11, Steven S Brown6, Patrick R Veres11, Andrew W Rollins12 and Matthew Mitchell Coggon6, (1)NOAA Boulder, Boulder, CO, United States, (2)Cooperative Institute for Research in Environmental Sciences, Boulder, United States, (3)CIRES and NOAA Chemical Sciences Laboratory, Boulder, United States, (4)University of California, Berkeley, Earth and Planetary Sciences, Berkeley, United States, (5)CIRES/NOAA CSL, Boulder, United States, (6)NOAA Chemical Sciences Laboratory, Boulder, United States, (7)University of Colorado, Boulder, United States, (8)NASA Jet Propulsion Laboratory, Pasadena, United States, (9)CIRES and NOAA Chemical Science Laboratory, Boulder, United States, (10)NOAA/ESRL/Chemical Sciences Laboratory, Tropospheric Chemistry, Boulder, United States, (11)NOAA ESRL, Chemical Sciences Laboratory, Boulder, United States, (12)NOAA Chemical Sciences Laboratory, Boulder, CO, United States
 
MAX-DOAS measurements of NO2 and HCHO in Whittier, California and comparison to TROPOMI (1130637)
Peter Peterson1, Lisa Hernandez1, Emmanuel Shum2, Leslie Tanaka1 and Alejandro Dunnick1, (1)Whittier College, Whittier, CA, United States, (2)Whittier College, Whittier, United States
 
Air Quality in Los Angeles 2022: A Reassessment of Gas-Phase Precursors and Products (1131137)
Andrew Jensen1,2, Melissa Morris2,3, Olivia J Jenks2,3, Alexander Bradley2,3, Benjamin Schulze4, Doug A Day2,3, John D Crounse5, Paul O Wennberg4, Jose L. Jimenez1,2 and Joost A de Gouw2,3, (1)University of Colorado at Boulder, Cooperative Institute for Research in Environmental Sciences (CIRES) and Department of Chemistry, Boulder, United States, (2)Cooperative Institute for Research in Environmental Sciences, Boulder, United States, (3)University of Colorado at Boulder, Department of Chemistry, Boulder, United States, (4)California Institute of Technology, Department of Environmental Science and Engineering, Pasadena, United States, (5)California Institute of Technology, Division of Geological and Planetary Sciences, Pasadena, United States
 
Impacts of Emission Changes and Meteorology on the Long-term (2013-2020) Ozone Trend in a Megacity (Chengdu), China (1132645)
Yurun Wang, University of California Davis, Department of Land, Air, and Water Resources, Davis, United States
 
Coarse particulate matter air quality in East Asia: implications for fine particulate nitrate (1133766)
Shixian Zhai1, Daniel J. Jacob2, Viral Shah2, Laura Yang2, Qiang Zhang3, Sun Yele4, Shuxiao Wang5, Gan Luo6, Fangqun Yu6, Jung-Hun Woo7, Younha Kim8, Jack E Dibb9, Taehyoung Lee10, Jinseok Han11, Bruce Anderson12, Ke Li13 and Hong Liao13, (1)Harvard University, Cambridge, MA, United States, (2)Harvard University, Cambridge, United States, (3)Tsinghua University, Beijing, China, (4)State Key Laboratory of Atmospheric Boundary Physics and Atmospheric Chemistry, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing, China, (5)Tsinghua University, State Key Joint Laboratory of Environmental Simulation and Pollution Control, School of Environment, Beijing, China, (6)SUNY at Albany, Albany, United States, (7)Konkuk University, Department of Civil and Environmental Engineering, Seoul, South Korea, (8)IIASA International Institute for Applied Systems Analysis, Laxenburg, Austria, (9)University of New Hampshire, Institute for the Study of Earth, Oceans, and Space, Durham, NH, United States, (10)Hankuk University of Foreign Studies, Environmental Science, Yongin, South Korea, (11)Anyang University, Arlington, South Korea, (12)NASA Langley Research Center, Hampton, VA, United States, (13)Nanjing University of Information Science and Technology, Nanjing, China
 
Impact of Tire and Brake Wear Emissions on PM2.5 in Urban Streets with Computational Fluid Dynamics Model (1135360)
Seonyoung Park1, Minjoong J Kim1, JaeJin Kim2, Jin-Young Choi3 and Dae-Gyun Lee4, (1)Myongji University, Environmental Engineering and Energy, Yongin, South Korea, (2)Pukyong National University, Department of Environmental Atmospheric Sciences, Busan, South Korea, (3)National Institute of Environmental Research, Air Quality Research Division, Incheon, South Korea, (4)National Institute of Environmental Research, Climate and Air Quality Research Department, Incheon, South Korea
 
An Evaluation of Lidar Derived Ozone Curtain Profiles from the TRACER-AQ Campaign and WRF-Chem Simulation (1136004)
Claudia Bernier1, Yuxuan Wang2, Guillaume Gronoff3, Timothy Berkoff3, John T Sullivan4 and Daniel Phoenix5, (1)University of Houston, Houston, United States, (2)University of Houston, Department of Earth and Atmospheric Sciences, Houston, TX, United States, (3)NASA Langley Research Center, Hampton, VA, United States, (4)NASA Goddard Space Flight Center, Greenbelt, MD, United States, (5)NASA Langley Research Center, Hampton, United States
 
Effects of replacing a diesel bus with a compressed natural gas bus on air quality in the Seoul metropolitan area (1136269)
Kim EunBi1, Minjoong J Kim1, JaeJin Kim2, Wonsik Choi3 and Sang-Hyun Lee4, (1)Myongji University, Department of Environmental Engineering and Energy, Yongin-si, South Korea, (2)Pukyong National University, Department of Environmental Atmospheric Sciences, Busan, South Korea, (3)Pukyong National University, Division of Earth Environmental System Sciences (Major of Environmental Atmospheric Sciences), Busan, South Korea, (4)Kongju National University, Department of Atmospheric Science, Gongju, Korea, Republic of (South)
 
Analyzing Transport Pattern of Air Pollutants During the TRACER-AQ 2021 Campaign in Houston, Texas (1136456)
Ehsan Soleimanian1, Yuxuan Wang1, Xueying Liu1, Wei Li1, Travis Griggs1, James Flynn1, Paul J. Walter2 and Mark Joseph Estes3, (1)University of Houston, Department of Earth and Atmospheric Sciences, Houston, TX, United States, (2)St. Edward's University, School of Natural Sciences, Austin, TX, United States, (3)St. Edward's University, Department of Mathematics, Austin, TX, United States
 
Understanding Sources and Trends of Volatile Organic Compounds in the Los Angeles Basin across Gradients of Human Activity and over Decadal Timescales (1137049)
Afsara Tasnia1, Christos Stamatis2, Samiha Binte Shahid3, Barbara Barletta4, Simone Meinardi4, Katherine Ball5, John D Crounse6, John Seinfeld5, Paul Wennberg5, Donald Ray Blake4 and Kelley Barsanti7, (1)University of California Riverside, Chemical & Environmental Engineering, Riverside, United States, (2)Virginia Polytechnic Institute and State University, Blacksburg, United States, (3)University of California Riverside, Department of Chemical and Environmental Engineering, Riverside, United States, (4)University of California Irvine, Irvine, United States, (5)California Institute of Technology, Pasadena, United States, (6)California Institute of Technology, Division of Geological and Planetary Sciences, Pasadena, United States, (7)University of California Riverside, Chemical & Environmental Engineering, Center for Environmental Research & Technology, Riverside, CA, United States
 
Analysis of Air Quality Changes by Long-term Accumulated National Development Plan in Korea (1138015)
Jihyun Seo and Nankyoung Moon, KEI Korea Environment Institute, Sejong, South Korea
 
PM2.5 concentration changes before and after COVID-19 pandemic in Seoul, Korea (1139839)
Young Sunwoo1, Dasom Park2, Moon-seok Kang3, Chanbyeoung Chae3, Jisoo KIM4 and Yoon Joo Cho5, (1)Konkuk University, Seoul, Korea, Republic of (South), (2)Konkuk University, Environmental Engineering, Seoul, South Korea, (3)Konkuk Univ., Seoul, South Korea, (4)Konkuk University, Environment engineering, Seoul, South Korea, (5)Konkuk university, Seoul, South Korea
 
Mass Extinction Efficiency Change in South Korea Using Visibility Data and Lidar Data (1143032)
Sohee Joo1, Youngmin Noh2, Taegyeong Kim1, Juseon Shin1, Naghmeh Dehkhoda1, Jaewon Kim1 and Yuseon Lee1, (1)Pukyong National University, Division of Earth Environmental System Science, Busan, South Korea, (2)Pukyoung National University, Division of Earth Environmental System Science, Busan, South Korea
 
Importance of heterogeneous reactions for the evaluation of ozone formation mechanism and implications for ozone mitigation strategies (1143239)
Jianing Dai1, Guy P Brasseur1,2, Mihalis Vrekoussis3, Yijuan Zhang4, Hongliang Zhang5 and Peng Wang6, (1)Max Planck Institute for Meteorology, Hamburg, Germany, (2)National Center for Atmospheric Research, Atmospheric Chemistry Observations & Modeling Laboratory, Boulder, United States, (3)University of Bremen, Institute of Environmental Physics + MARUM, Bremen, Germany, (4)University of Bremen, Bremen, Germany, (5)Department of Environmental Science and Engineering, Fudan University, Baton Rouge, United States, (6)Fudan University, Shanghai, China
 
Impact of COVID-19 Lockdown on Air Quality in Western Sri Lanka and the Influence of Local Wind Profile on Dispersion of Air Pollutants (1145732)
Piushani Ellegala and Lesty Jayasuriya, Central Environmental Authority, Environmental Pollution Control Division, Colombo, Sri Lanka
 
AEROSOL OPTICAL DEPTH VARIATIONS OVER NORTHEAST REGION OF INDIA USING SATELLITE DATA (1146136)
Upasha Tyagi and Krishan Kumar, Jawaharlal Nehru University, New Delhi, India
 
Long-term trends of atmospheric hot-and-polluted episodes (HPE) and the public health implications in the Pearl River Delta region of China (1147192)
Steve H.L. Yim, Nanyang Technological University, Asian School of the Environment; Lee Kong Chian School of Medicine; Earth Observatory of Singapore, Singapore, Singapore, Ifeanyichukwu Chidiebele Nduka, Vandenberg AFB, CA, United States, Tao Huang, The Chinese University of Hong Kong, Hong Kong, China, Department of Geography and Resource Management, Hong Kong, Hong Kong, Z. Li, The Chinese University of Hong Kong, Hong Kong, China, Institute of Environment, Energy and Sustainability, Hong Kong, Hong Kong, Y. Yang, The Chinese University of Hong Kong, Hong Kong, China, Institute of Environment, Energy and Sustainability, Nanjing, China and Joseph J.Y. Sung, Nanyang Technological University, Lee Kong Chian School of Medicine,, Singapore, Singapore
 
Modeling the Impact of Local and Regional Emission Sectors on Ground-Level Ozone Formation In and Downwind of New York City During LISTOS 2018 (1149053)
Alexandra N Karambelas, Northeast States for Coordinated Air Use Management, Boston, MA, United States, Paul J Miller, NESCAUM, Boston, MA, United States, Jonathan E. Pleim, US EPA, Atmospheric Modeling and Analysis Division, Research Triangle Park, NC, United States, Joseph Jakuta, DC Department of Energy and Environment, Air Quality Division, Washington, United States, Eric Zalewsky, New York State Department of Environmental Conservation, Albany, United States, Jeffrey Underhill, New Hampshire Department of Environmental Services, Concord, United States and Ana Torres-Vazquez, National Weather Service, Miami, United States
 
Elucidating the Summertime Ozone Air Pollution during the Michigan-Ontario Ozone Source Experiment (MOOSE) Field Campaign in 2021 (1149111)
Yaoxian Huang1, Ying Xiong2, Jiajue Chai3, Huiting Mao4, Tara Irene Yacovitch5, Eduardo P Olaguer6, Brian M Lerner5, Manjula R Canagaratna5 and Francesca Majluf5, (1)Wayne State University, Detroit, United States, (2)Wayne State University, Civil & Environmental Engineering, Detroit, MI, United States, (3)Brown University, Department of Earth, Environmental and Planetary Sciences, and Institute at Brown for Environment and Society, Providence, RI, United States, (4)SUNY-ESF, Chemistry, Syracuse, NY, United States, (5)Aerodyne Research Inc., Billerica, United States, (6)Michigan Department of Environment, Great Lakes and Energy, Lansing, United States
 
Evaluating the anthropogenic ozone sensitivity to emissions from Volatile Chemical Products (VCPs) and other non-traditional urban VOC sources in two unique urban centers: Las Vegas and Los Angeles (1153638)
Chelsea E. Stockwell1, Matthew Mitchell Coggon2, Lu Xu3, Jessica Gilman2, Aaron Lamplugh4, Kristen Zuraski3, Jeff Peischl5, Bert Verreyken6, Colin Harkins7, Meng Li8, Michael A Robinson9, J A Neuman10, Patrick R Veres11, Brian C McDonald2, Steve Brown2 and Carsten Warneke2, (1)CU/CIRES - NOAA/ESRL, Boulder, CO, UNITED STATES, (2)NOAA Chemical Sciences Laboratory, Boulder, United States, (3)CIRES and NOAA Chemical Sciences Laboratory, Boulder, United States, (4)University of Colorado, Boulder, United States, (5)CIRES and NOAA Chemical Science Laboratory, Boulder, United States, (6)NRC/NOAA CSL, Boulder, United States, (7)Cooperative Institute for Research in Environmental Sciences, University of Colorado Boulder, Boulder, United States, (8)NOAA ESRL/CSL and CU Boulder/CIRES, Boulder, United States, (9)CIRES / NOAA Chemical Sciences Laboratory, Boulder, United States, (10)Cooperative Institute for Research in Environmental Sciences (CIRES), Boulder, United States, (11)NOAA ESRL, Chemical Sciences Laboratory, Boulder, United States
 
VOC Measurements in Modern Urban Areas: PTR-MS Interferences for Commonly Observed VOCs (1161303)
Matthew Mitchell Coggon1, Megan Claflin2, Lu Xu3, Chelsea Stockwell4, Aaron Lamplugh5, Jessica Gilman1, Manjula R Canagaratna6, Brian M Lerner7 and Carsten Warneke1, (1)NOAA Chemical Sciences Laboratory, Boulder, United States, (2)Aerodyne Research Inc., Billerica, MA, United States, (3)CIRES and NOAA Chemical Sciences Laboratory, Boulder, United States, (4)Cooperative Institute for Research in Environmental Sciences, Boulder, United States, (5)University of Colorado, Boulder, United States, (6)Aerodyne Research Inc., Billerica, United States, (7)NOAA, Earth System Research La, Boulder, United States
 
Linking emissions of fossil fuel-CO2 and pollutant gases using measurements of atmospheric 14CO2 (radiocarbon) during SUNVEx 2021 (1161643)
John B Miller1, Brian C McDonald2, Scott Lehman3, Congmeng Lyu4, Bert Verreyken5, Carsten Warneke2, Jeff Peischl6, Jessica Gilman2, Matthew Mitchell Coggon6, Lu Xu4, Chelsea Stockwell4, Aaron Lamplugh6, Steve Brown2 and Kristen Zuraski4, (1)NOAA, Global Monitoring Laboratory, Boulder, United States, (2)NOAA Chemical Sciences Laboratory, Boulder, United States, (3)Institute for Arctic and Alpine Research, University of Colorado, Boulder, CO, United States, (4)CIRES and NOAA Chemical Sciences Laboratory, Boulder, United States, (5)NRC/NOAA CSL, Boulder, United States, (6)CIRES and NOAA Chemical Science Laboratory, Boulder, United States
 
Machine Learning for Investigating Photochemical Model Errors in Urban Ozone Simulations (1162074)
Tsengel Nergui and Zac Adelman, Lake Michigan Air Directors Consortium, Hillside, United States
 
Study of VOCs and Aerosols at Corpus Christi and San Antonio During Spring 2021 (1163227)
Sujan Shrestha1, Manisha Mehra1, Meghan Guagenti1, Subin Yoon2, Sergio Luiz Alvarez3, Shan Zhou2, Fangzhou Guo2, Chun-Ying Chao4, James Flynn3, Robert Griffin5, Sascha Usenko1 and Rebecca J Sheesley1, (1)Baylor University, Environmental Science, Waco, TX, United States, (2)University of Houston, Department of Earth and Atmospheric Sciences, Houston, United States, (3)University of Houston, Department of Earth and Atmospheric Sciences, Houston, TX, United States, (4)Rice University, Civil and Environmental Engineering, Houston, TX, United States, (5)Roger Williams University, School of Engineering, Computing and Construction Management, Providence, RI, United States
 
Using traffic flow and speed relation to estimate hourly on-road traffic PM and NOx Emissions for Delhi (1163907)
Akash Biswal1,2, Vikas Singh1, Leeza Malik3, Geetam Tiwari4, Ravindra Khaiwal5 and Suman Mor2, (1)National Atmospheric Research Laboratory, Gadanki, India, (2)Panjab University, Chandigarh, India, (3)IIT (ISM), Dhanbad, India, (4)Indian Institute of Technology Delhi, New Delhi, India, (5)PGIMER, Chandigarh, India
 
Model Evaluation and Intercomparison Using Data Collected by the Langley Mobile Ozone Lidar in Hampton, Virginia during the Year 2022 (1165594)
Daniel Benjamin Phoenix1, Guillaume Gronoff2, Timothy Berkoff2 and Claudia Bernier3, (1)Science Systems and Application Inc, Hampton, United States, (2)NASA Langley Research Center, Hampton, VA, United States, (3)University of Houston, Houston, United States
 
Can Trends in Nitrate Radical Sources and Sinks Contribute to Changes in the Odd Oxidant Budgets in Urban Areas over the Last Two Decades? (1166437)
Jennifer G Murphy, University of Toronto, Department of Chemistry, Toronto, ON, Canada, Brendan O'Connell, University of Toronto, Toronto, ON, Canada and Yushan Su, Ontario Ministry of the Environment, Etobicoke, ON, Canada
 
Source Apportionment Resolved by Time-Of-Day for Improved Deconvolution of Primary Source Contributions to Organic Aerosol: Application to the Delhi Aerosol Supersite Study (1167814)
Sahil Bhandari, University of British Columbia, Department of Mechanical Engineering, Vancouver, BC, Canada, Zainab Arub, Indian Institute of Technology Delhi, Civil Engineering, New Delhi, India, Gazala Habib, Indian Institute of Technology Delhi, New Delhi, India, Joshua Apte, University of California, Berkeley, Department of Civil and Environmental Engineering, Berkeley, United States and Lea Hildebrandt Ruiz, University of Texas at Austin, McKetta Department of Chemical Engineering, Austin, TX, United States
 
Observation of pollution events at low altitude during TRACER-AQ -- the advantage of adaptive resolution lidar (1170161)
Guillaume Gronoff, Science Systems and Applications, Inc. Hampton, Hampton, VA, United States, Daniel Benjamin Phoenix, Science Systems and Application Inc, Hampton, United States, Timothy Berkoff, NASA Langley Research Center, Hampton, VA, United States, Claudia Bernier, University of Houston, Houston, United States, John T Sullivan, NASA Goddard Space Flight Center, Greenbelt, MD, United States, James Flynn, University of Houston, Department of Earth and Atmospheric Sciences, Houston, TX, United States, Alexander Kotsakis, ERT, Inc., Laurel, United States and Paul J. Walter, Ice911 Research Corporation, Menlo Park, United States
 
Investigating Impacts of Local Circulation on Coastal Ozone Problem in the New York Metropolitan Area (1175814)
Huiying Luo, Atmospheric Sciences Research Center, University at Albany State University of New York, Albany, United States and Cheng-Hsuan Lu, University at Albany State University of New York, Albany, United States; Joint Center for Satellite Data Assimilation, Bouder, United States
 
Isotopic investigation of NOx and Ozone chemistry in Southeast Michigan under the influence of lake-land air recirculation (1176332)
Thomas Lee1, Jiajue Chai2, Ying Xiong3, Yaoxian Huang3, Heejeong Kim4, Huiting Mao5 and Meredith Galanter Hastings4, (1)Brown University, Providence, RI, United States, (2)Brown University, Department of Earth, Environmental and Planetary Sciences, and Institute at Brown for Environment and Society, Providence, RI, United States, (3)Wayne State University, Civil & Environmental Engineering, Detroit, MI, United States, (4)Brown University, Department of Earth, Environmental and Planetary Sciences, and Institute at Brown for Environment and Society, Providence, United States, (5)SUNY-ESF, Chemistry, Syracuse, NY, United States
 
Contributions of Meteorology to Ozone Variations: Application of Deep Learning and the Kolmogorov-Zurbenko Filter (1179427)
Bavand Sadeghi, Berwyn Heights, Maryland, UNITED STATES, Masoud Ghahremanloo, University of Houston, Houston, United States, Seyedali Mousavinezhad, University of Houston, Houston, TX, United States, Yannic Lops, Lawrence Livermore National Laboratory, Livermore, CA, United States, Arman Pouyaei, University of Houston, Department of Earth and Atmospheric Sciences, Houston, TX, United States and Yunsoo Choi, University of Houston, Department of Earth and Atmospheric Sciences, Houston, United States
 
Evaluating WRF offshore meteorology simulation during TRACER-AQ 2021 in Houston, TX (1182402)
Xueying Liu1, Yuxuan Wang1, Shailaja Wasti2, Wei Li1, Ehsan Soleimanian1, Travis Griggs1, James Flynn1, John T Sullivan3, Maurice Roots4, Paul J. Walter5 and Mark Estes6, (1)University of Houston, Department of Earth and Atmospheric Sciences, Houston, TX, United States, (2)University of Houston, Department of Earth and Atmospheric Sciences, Houston, United States, (3)NASA Goddard Space Flight Center, Greenbelt, MD, United States, (4)University of Maryland, Baltimore County, Baltimore, United States, (5)St. Edward's University, School of Natural Sciences, Austin, TX, United States, (6)St. Edward's University, School of Natural Sciences, Austin, United States
 
Ion mobility spectrometry with ammonium-adduct chemical ionization for instantaneous isomer-resolved ambient measurements: A New York City case study (1182924)
Taekyu Joo1, Jordan Krechmer2, Sebastian Gerber3, Manjula R Canagaratna2, Michael Kamrath3, Stephan Graf3, Matthieu Riva3, Felipe Lopez-Hilfiker3, Jo Machesky4, Mia Nhu Tran4, Andrew T Lambe2 and Drew R Gentner4, (1)Yale University, New Haven, CT, United States, (2)Aerodyne Research Inc., Billerica, United States, (3)Tofwerk, Thun, Switzerland, (4)Yale University, Department of Chemical and Environmental Engineering, New Haven, United States
 
Measurements of Urban SOA as a Function of Precursor Volatility in the Los Angeles Area during Summer 2022 (1183843)
Melissa Morris1, Benjamin Schulze2, Andrew Jensen1, Doug A Day1, Pedro Campuzano-Jost1, Anne V Handschy1, Melinda Schueneman1, Seonsik Yun1, Dongwook Kim1, Donna Sueper1,3, Harald Stark1,3, Joost A de Gouw1, Paul O Wennberg2 and Jose L. Jimenez1, (1)University of Colorado at Boulder, Cooperative Institute for Research in Environmental Sciences (CIRES) and Department of Chemistry, Boulder, United States, (2)California Institute of Technology, Department of Environmental Science and Engineering, Pasadena, United States, (3)Aerodyne Research Inc., Billerica, United States
 
Characterizing High Ozone Events in the Houston-Galveston-Brazoria Region with Mobile Marine Air Quality Sampling Systems During July-October 2021 (1184516)
Travis Griggs1, James H Flynn III1, Yuxuan Wang1 and Paul J. Walter2, (1)University of Houston, Department of Earth and Atmospheric Sciences, Houston, TX, United States, (2)St. Edward's University, School of Natural Sciences, Austin, TX, United States
 
Detailed Chemical Analyses of New York City’s Emissions, Chemistry, and Air Quality in the 21st Century (1185609)
Drew R Gentner1, Colby Buehler2, Tori Hass-Mitchell1, Taekyu Joo1, Jo Machesky1, Paul Moon1, Minguk Seo1, Catelynn Soong1, Mia Nhu Tran1, Daniel Blomdahl3, Pawel K Misztal3, Manjula R Canagaratna4, Jordan Krechmer4, Andrew T Lambe4, Benjamin Nault4 and Joseph R Roscioli5, (1)Yale University, Department of Chemical and Environmental Engineering, New Haven, United States, (2)Yale University, Department of Chemical and Environmental Engineering, New Haven, CT, United States, (3)University of Texas at Austin, Department of Civil, Architectural and Environmental Engineering, Austin, TX, United States, (4)Aerodyne Research Inc., Billerica, United States, (5)Aerodyne Research, Inc., Billerica, United States
 
Impact of climate variability and change on the ozone response to NOx emissions reductions (1187521)
Emmie Le Roy, Massachusetts Institute of Technology, Department of Earth, Atmospheric and Planetary Sciences, Cambridge, United States, Sebastian David Eastham, Massachusetts Institute of Technology, Laboratory for Aviation and the Environment, Cambridge, United States; Massachusetts Institute of Technology, Joint Program on the Science and Policy of Global Change, Cambridge, United States and Noelle E Selin, Massachusetts Institute of Technology, Institute for Data, Systems, and Society, Cambridge, United States; Massachusetts Institute of Technology, Department of Earth, Atmospheric, and Planetary Sciences, Cambridge, MA, United States
 
Copper Speciation in Size-Fractionated Urban Particulate Matter by Spectromicroscopy Methods (1191243)
Paul Aronstein1, Valerie J Leppert2, Matthew J Robinson2 and Peggy A O'Day3,4, (1)University of California Merced, Environmental Systems, Merced, United States, (2)University of California Merced, School of Engineering, Merced, United States, (3)University of California Merced, Life and Environmental Sciences, Merced, United States, (4)University of California Merced, Sierra Nevada Research Institute, Merced, United States
 
Nighttime NO3 radical variations near the ground in the summertime Seoul, Korea (1198335)
Jiseon Lee1, Chisung Yun1, Gangwoong Lee1, Joo-Ae Kim2, Doyoung Kim2, Meehye Lee2, Hyunmin Lee2 and Sijin Chen2, (1)Hankuk University of Foreign Studies, Environmental Science, Yongin, South Korea, (2)Korea University, Department of Earth and Environmental Science, Seoul, South Korea
 
How do fine particle concentrations increase in coastal megacity Busan, South Korea: preliminary results (1199473)
Myounghwa Byun, Pukyong National University, Division of Earth Environmental System Sciences (Major of Environmental Atmospheric Sciences), Busan, Korea, Republic of (South), Wonsik Choi, Pukyong National University, Division of Earth Environmental System Sciences (Major of Environmental Atmospheric Sciences), Busan, South Korea and Youn-Suk Son, Pukyong National University, Busan, South Korea
 
Spatiotemporal variations of particle size distributions near major roadways in Korea (1199482)
Subin Han, Pukyong National University, Division of Earth Environmental System Science, Busan, South Korea, Yongmi Park, Pukyong National University, Division of Earth Environmental System Science (Major of Environmental Atmospheric Sciences), Busan, South Korea and Wonsik Choi, Pukyong National University, Division of Earth Environmental System Sciences (Major of Environmental Atmospheric Sciences), Busan, South Korea
 
Effects of Turbulence Characteristics on the Concentration Distributions of Traffic-related Pollutants near Roadways (1199501)
Yongmi Park, Pukyong National University, Division of Earth Environmental System Science (Major of Environmental Atmospheric Sciences), Busan, South Korea, Subin Han, Pukyong National University, Division of Earth Environmental System Science, Busan, South Korea and Wonsik Choi, Pukyong National University, Division of Earth Environmental System Sciences (Major of Environmental Atmospheric Sciences), Busan, South Korea
 
Pollutant Emissions and Distributions in the U.S. Urban Southwest: Mobile Measurements of Nitrogen Oxides, Greenhouse Gases and VOCs (1199691)
Steven S Brown1, Kristen L Zuraski2, Jeff Peischl3, Michael A Robinson4, Matthew Mitchell Coggon5, Chelsea E. Stockwell6, Lu Xu7, Carsten Warneke1, Aaron Lamplugh8, Jessica Gilman1 and Brian C McDonald1, (1)NOAA Chemical Sciences Laboratory, Boulder, United States, (2)Cooperative Institute for Research in Environmental Sciences, Boulder, United States, (3)CIRES and NOAA Chemical Science Laboratory, Boulder, United States, (4)CIRES / NOAA Chemical Sciences Laboratory, Boulder, United States, (5)California Institute of Technology, Department of Chemical Engineering, Pasadena, United States, (6)CU/CIRES - NOAA/ESRL, Boulder, CO, UNITED STATES, (7)CIRES and NOAA Chemical Sciences Laboratory, Boulder, United States, (8)University of Colorado, Boulder, United States
 
Use of two operational ML models for forecasting 24-hours-average PM2.5 concentration in the Aburrá Valley, Colombia, using global forecasts and satellite information. (1200486)
Jhayron Steven Pérez Carrasquilla1,2, Paola A Montoya2,3, Juan Manuel Sánchez2,3 and Mauricio Ramírez2, (1)University of Maryland College Park, College Park, United States, (2)Área Metropolitana del Valle de Aburrá, Proyecto Sistema de Alerta Temprana de Medellín y el Valle de Aburrá (SIATA), Medellín, Colombia, (3)Universidad de Antioquia, Medellin, Colombia
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