Chenghao Wang, University of Oklahoma, School of Meteorology; Department of Geography and Environmental Sustainability, Norman, United States, Xiao-Ming Hu, University of Oklahoma Norman Campus, Center for Analysis and Prediction of Storms, Norman, OK, United States, Siqi Ma, George Mason University, Department of Atmospheric, Oceanic and Earth Sciences, Fairfax, United States and Daniel Tong, George Mason University, Department of Atmospheric, Oceanic & Earth Sciences, Fairfax, United States

Sasha Renton, Colorado College, Colorado Springs, CO, United States, Xinrong Ren, NOAA, Air Resources Laboratory, College Park, United States, Russell R Dickerson, University of Maryland, Department of Atmospheric and Oceanic Science, College Park, United States and Steven S Brown, NOAA Chemical Sciences Laboratory, Boulder, United States

Luigi Di Micco, Silverio Abati, Massimiliano Bultrini, Arianna Lepore and Marco Faticanti, Italian Institute for Environmental Protection and Research, Rome, Italy

Alex B Guenther, University of California Irvine, Department of Earth System Science, Irvine, CA, United States, Saewung Kim, University of California Irvine, Dept. of Earth System Science, Irvine, United States and Jung-Hun Woo, Seoul National University, Dept. of Environmental Management, Seoul, Korea, Republic of (South)

Yixuan Gu¹, Daven K Henze² and Hong Liao¹, (1)Nanjing University of Information Science & Technology, School of Environmental Science and Engineering, Nanjing, China, (2)University of Colorado Boulder, Department of Mechanical Engineering, Boulder, United States

Zining Yang¹, Chun Zhao², Zihan Xia³, Qiuyan Du², Gudongze Li², Qike Yang⁴ and Mingyue Xu², (1)University of Science and Technology of China, Hefei, China, (2)University of Science and Technology of China, School of Earth and Space Sciences, Hefei, China, (3)USTC University of Science and Technology of China, Hefei, China, (4)Hefei, Anhui, CHINA

Yanli Zhang¹, Haofan Ran¹, Alex B Guenther², Qiang Zhang³ and Xinming Wang⁴, (1)Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, State Key Laboratory of Advanced Environmental Technology, Guangzhou, China, (2)University of California Irvine, Department of Earth System Science, Irvine, CA, United States, (3)Tsinghua University, Department of Earth System Science, Beijing, China, (4)Geochemistry institute at Guangzhou (GIG), Chinese Academy of Sciences (CAS), State Key Laboratory of Advanced Environmental Technology, Guangzhou, China

Danilo Dias Cruz, University of Sao Paulo, Sao Paulo, United States and Marco Aurélio Franco, University of São Paulo, Physics Institute, São Paulo, Brazil

Sumin Choi, Chaewan Kim, Jinsuk Jeong, Hong-Duck Sou and Chan-Ryul Park, National Institute of Forest Science, Livable Urban Forests Research Center, Seoul, South Korea

Soroush Esmaeili Neyestani¹, Xinyi Zhang², Sahar Fazelvalipour², Jie Zhang³, Ling Jin⁴, Elyse Pennington⁵ and Jiachen Zhang², (1)University of Southern California, Department of Civil and Environmental Engineering, Los Angeles, CA, United States, (2)University of Southern California, Department of Civil and Environmental Engineering, Los Angeles, United States, (3)Lawrence Berkeley National Laboratory, Berkeley, CA, United States, (4)Lawrence Berkeley National Laboratory, Berkeley, United States, (5)California Institute of Technology, Pasadena, CA, United States

Shaocai Yu¹, Ningning Yao¹, Lang Chen¹ and Lang Song², (1)Zhejiang Gongshang University, School of Environmental Sciences and Engineering, Hangzhou, China, (2)Zhejiang University, College of Environment and Resource Sciences, Hangzhou, China

Siang-Heng Wang, Climate Change Research Center, National Environmental Research Academy, Taoyuan, Taiwan

Marc Nicholas Fiddler, North Carolina A & T State University, NOAA-ISET Center, Greensboro, NC, United States, Shree Dorestant, City of Greensboro, Sustainability Office, Greensboro, United States, Sergey Kobelev, City of Greensboro, Office of Sustainability & Resilience, Greensboro, United States, William Allen, City of Greensboro, Facilities Maintenance, Greensboro, United States, PJ Mrsic, City of Greensboro, Information Technology, Network Services, Greensboro, United States and Solomon Bililign, North Carolina A & T State University, Physics, Greensboro, United States

Yunseo Choi¹, Hongming Yi¹, Ryan J Boyd¹, Vladislav I Sevostianov¹, Daniel Moore¹, Mark A Zondlo¹, Glenn S Diskin², Yonghoon Choi², Joshua P DiGangi³, Anke Roiger⁴, Maximilian Eckl⁵, Leon Knez⁶, Paul Waldmann⁶, Armin Wisthaler⁷, Tomas Mikoviny⁷, Markus Mueller⁸, Felix Piel⁷, Tobias Reinecke⁸, Stefan Swift⁹ and Wojciech Wojnowski⁷, (1)Princeton University, Department of Civil and Environmental Engineering, Princeton, United States, (2)NASA Langley Research Center, Hampton, United States, (3)NASA Langley Research Center, Hampton, VA, United States, (4)German Aerospace Center DLR Oberpfaffenhofen, Institute of Atmospheric Physics, Oberpfaffenhofen, Germany, (5)German Aerospace Center (DLR) Oberpfaffenhofen, Institute of Atmospheric Physics, Wessling, Germany, (6)Deutsches Zentrum für Luft- und Raumfahrt (DLR), Institute of Atmospheric Physics, Oberpfaffenhofen, Germany, (7)University of Oslo, Department of Chemistry, Oslo, Norway, (8)Ionicon Analytik, Innsbruck, Austria, (9)University of York, York, United Kingdom

Yue Zhang, University of Texas Health Science Center at Houston, Houston, United States and Yun Hang, University of Texas Health Science Center at Houston, Department of Environmental and Occupational Health Sciences, Houston, United States

Daniela Guevara¹, Ilana Pollack², Brandon McGuire¹, Emily Cope³, Wade Permar⁴, Dr. Jeffrey Nivitanont, PhD⁵, Zakkary Trader-Gough⁵, Anna Robertson⁶, Kyle Johnson⁷, Eric Beamesderfer⁶, Nathanael Ribar⁶, Kristen Okorn⁸, Lu Tan³, Shane M Murphy⁵, Lu Hu³, Reem Hannun⁸, A Gannet Hallar⁹, John C Lin⁹ and Emily V Fischer¹, (1)Colorado State University, Department of Atmospheric Science, Fort Collins, United States, (2)CIRES, University of Colorado Boulder & NOAA Chemical Sciences Laboratory, Boulder, United States, (3)University of Montana, Department of Chemistry and Biochemistry, Missoula, United States, (4)University of Montana, Department of Chemistry and Biochemistry, Missoula, MT, United States, (5)University of Wyoming, Atmospheric Science, Laramie, WY, United States, (6)University of Wyoming, Atmospheric Science, Laramie, United States, (7)University of Wymoing, Atmospheric Science, Laramie, United States, (8)NASA Ames Research Center, Atmospheric Science Branch, Moffett Field, United States, (9)University of Utah, Department of Atmospheric Sciences, Salt Lake City, United States

Saadia Hina¹, Salman Tariq², Hamna Nisar³, Ammara Habib⁴, Eliani Ezani⁵ and Muhammad Ibrahim¹, (1)Government College University Faisalabad, Department of Environmental Sciences, Faisalabad, Pakistan, (2)University of the Punjab, Department of Space Science, Lahore, Pakistan, (3)Government College University Faisalabad Pakistan, Environmental Sciences, Faisalabad, Pakistan, (4)Urban Sector Policy and Management Services Unit (Pvt.) Limited, Lahore, Pakistan, (5)Universiti Putra Malaysia, Department of Environmental and occupational health, Serdang Selangor, Malaysia

Shubha Verma and Shubham Patel, Indian Institute of Technology Kharagpur, Department of Civil Engineering, Kharagpur, India

Lydia Lichtiger¹, Charlotte Robbins¹, Sharon Coleman², Stephanie Ettinger de Cuba³ and Kevin Lane¹, (1)Boston University School of Public Health, Department of Environmental Health, Boston, United States, (2)Boston University School of Public Health, Biostatistics and Epidemiology Data Analytics Center, Boston, United States, (3)Boston University School of Public Health, Health Law, Policy & Management, Arlington, United States

Yifan Cheng¹, Wenfu Tang², Louisa K Emmons², Dr. Cenlin He³ and Lei Zhao¹, (1)University of Illinois at Urbana-Champaign, Department of Civil and Environmental Engineering, Urbana, United States, (2)NSF National Center for Atmospheric Research (NSF NCAR), Atmospheric Chemistry Observations & Modeling Laboratory (ACOM), Boulder, United States, (3)NSF National Center for Atmospheric Research, Research Applications Laboratory, Boulder, United States

Na Zhao, Shandong University, Environment Research Institute, Jinan, China, Yuqiang Zhang, Shandong University, Environment Research Institute, Qingdao, China and Likun Xue, Shandong University, Qingdao, China

Juliane Fry¹, Stepan Hornik¹, Joel Brito², Veronique Riffault², Hui Chen², Laurent Alleman², Jean-Eudes Petit³, Olivier Favez⁴, Hasna Chebaicheb⁵, Manousos Ioannis Manousakas⁶, Konstantinos Eleftheriadis⁷, Maria Gini⁶, Stergios Vratolis⁶, Jakub Ondracek⁸, Hugo Bison⁹, Ed van der Gaag⁹ and MI-TRAP project team, (1)Wageningen University, Environmental Sciences, Wageningen, Netherlands, (2)IMT Nord Europe, Centre for Energy and Environment, Douai, France, (3)LSCE Laboratoire des Sciences du Climat et de l'Environnement, Gif-Sur-Yvette Cedex, France, (4)INERIS Institut National de l’Environnement Industriel et des Risques, Verneuil en Halatte, France, (5)INERIS Institut National de l’Environnement Industriel et des Risques, Nancy, France, (6)National Center for Scientific Research Demokritos, Athens, Greece, (7)National Center for Scientific Research Demokritos, Attiki, Greece, (8)Czech Academy of Sciences, Institute for Chemical Process Fundamentals, Praha, Czech Republic, (9)DCMR Environmental Protection Agency Rijnmond, Rotterdam, Netherlands

Oluwaseun Akinola¹, Kaitlyn G Mahoney¹, Ziqi Gao², Cesunica Ivey³, Armistead G Russell⁴ and Abi Lawal¹, (1)University of Connecticut, Civil and Environmental Engineering, Storrs, United States, (2)University of Virginia, Environmental Institute, Charlottesville, United States, (3)University of California Berkeley, Department of Civil and Environmental Engineering, Berkeley, United States, (4)Georgia Institute of Technology, School of Civil and Environmental Engineering, Atlanta, United States

Evan Couzo¹, Evan Stoller¹ and Haya Alhusainan², (1)Grinnell College, Chemistry, Grinnell, United States, (2)Kuwait University, Geography, Kuwait City, Kuwait

Tabitha Lee^1,2 and Katherine Travis¹, (1)NASA Langley Research Center, Hampton, VA, United States, (2)Oak Ridge Associated Universities Inc., NASA Postdoctoral Program, Hampton, United States

Breiann Seymore¹, Michelle Jones², Paul J. Walter³, Michael P Jensen⁴, Aryeh J Drager⁵, Dié WANG⁴, Tayo Castro³, Mark Estes⁶, Mark Harvey⁷, Bruce Prince⁷ and Daniel Vrinceanu⁷, (1)Texas Southern University, Channelview, TX, United States, (2)Texas Southern University, Chemistry, Houston, United States, (3)St. Edward's University, Austin, United States, (4)Brookhaven National Laboratory, Upton, NY, United States, (5)Brookhaven National Laboratory, Upton, United States, (6)St. Edward's University, School of Natural Sciences, Austin, United States, (7)Texas Southern University, Houston, United States

Sara Grisales¹, Diego Grajales², Victor Gutierrez-Velez¹, Jaime Tavera³, Juan Ramirez², Manuela Salazar⁴, Miriam Gomez³ and Juan Gabriel Piñeros⁴, (1)Temple University, Department of Geography, Environment and Urban Studies, Philadelphia, United States, (2)Universidad de Antioquia, Facultad de Ingenieria, Medellin, Colombia, (3)Politecnico Colombiano Jaime Isaza Cadavid, Facultad de Ingenieria, Medellin, Colombia, (4)Universidad de Antioquia, Facultad Nacional de Salud Publica, Medellin, Colombia

Joseph Abi-Karam¹, John C Lin² and Haley Humble², (1)University of Illinois at Urbana-Champaign, Champaign, Illinois, UNITED STATES, (2)University of Utah, Department of Atmospheric Sciences, Salt Lake City, United States

Sishir Dahal, Department of Civil and Environmental Engineering, University of Utah, Salt Lake City, United States, Nabin Sharma, Department of Physics, SRM Institute of Science and Technology, Delhi-NCR Campus, Modinagar, Ghaziabad-201204, India, Ghaziabad, India, Sagnik Dey, Indian Institute of Technology Delhi, Centre for Atmospheric Sciences, New Delhi, India, Syed Ahsan Ali Bokhari, Pakistan Meteorological Department, Islamabad, Pakistan and Heather Holmes, Department of Chemical Engineering, University of Utah, Salt Lake City, United States

Brian Carroll, Cooperative Institute for Research in Environmental Sciences, Boulder, CO, United States, Sunil Baidar, University of Colorado at Boulder, Boulder, United States, Nathan Malarich, Cooperative Institute for Research in Environmental Sciences, Boulder, United States, Caroline Womack, NOAA Earth System Research Laboratory, Chemical Sciences Laboratory, Boulder, United States, Xinrong Ren, NOAA, Air Resources Laboratory, College Park, United States, Alan Brewer, NOAA/ESRL/CSL, Boulder, United States and Steven S Brown, NOAA Chemical Sciences Laboratory, Boulder, United States

Mahir Shahrier, MSc student, Independent University, Bangladesh, Environmental Science and Management, Dhaka, Bangladesh; Research Assistant, Environmental Science and Management, Dhaka, Bangladesh

Daniel Benjamin Phoenix¹, Timothy Berkoff¹, Guillaume Gronoff¹, Daniel Salkovitz², Claudia Bernier³, K. Emma Knowland⁴, John T Sullivan⁵, Maurice Roots⁶, Laurence Twigg⁷ and Travis N Knepp¹, (1)NASA Langley Research Center, Hampton, VA, United States, (2)Virginia Department of Environmental Quality, Richmond, United States, (3)University of Houston, Houston, TX, United States, (4)Universities Space Research Association Columbia, Columbia, United States, (5)NASA Goddard Space Flight Center, Greenbelt, MD, United States, (6)University of Maryland, Baltimore County, Department Physics, Baltimore, United States, (7)NASA Goddard Space Flight Center, Greenbelt, United States

Rashmi Rajput¹, Shenglun Wu², Benjamin Schulze³, Ryan Xavier Ward⁴, Qi Zhang⁵, Christopher D Cappa⁶, John Seinfeld³ and Michael Kleeman⁷, (1)University of California Davis, Atmospheric Science, Davis, United States, (2)University of California Davis, Davis, CA, United States, (3)California Institute of Technology, Pasadena, United States, (4)California Institute of Technology, Pasadena, CA, United States, (5)University of California Davis, Department of Environmental Toxicology, Davis, United States, (6)University of California, Department of Civil and Environmental Engineering, Davis, United States, (7)University of California Davis, Civil and Environmental Engineering, Davis, United States

Sergio Ibarra Espinosa¹, Edmilson Dias de Freitas², Benjamin Gaubert³, Pablo Lichtig⁴, Guilherme Pereira⁵, Janaina Mayara Pinto Nascimento⁶, Karl Ropkins⁷, Leila D Martins⁸, Angel Liduvino Vara Vela⁹, Daniel Schuch¹⁰, Rita Ynoue¹¹, Sebastian Diez¹², Leonardo Hoinaski¹³, Mario Gavidia-Calderón¹⁴, Taciana Toledo¹⁵, Zamir Mera¹⁶, Alejandro Casallas¹⁷, Fidel Vallejo¹⁸, Valeria Diaz¹⁹, Rizzieri Pedruzzi²⁰, Rosana Abrutzki²¹, Marco Aurélio Franco²², Nicolas Huneeus²³, Hector Jorquera²⁴, Luis Belalcazar²⁵, Nestor Yesid Rojas²⁶, Maria de Fatima Andrade¹¹, Louisa K Emmons²⁷ and Guy P Brasseur²⁸, (1)University of Colorado, Cooperative Institute for Research in Environmental Sciences, Boulder, United States, (2)Universidade de São Paulo, Departamento de Ciências Atmosféricas, Sao Paulo, Brazil, (3)National Center for Atmospheric Research (NCAR), Atmospheric Chemistry Observations & Modeling Laboratory (ACOM), Boulder,CO, United States, (4)Max Planck Institute for Meteorology, Hamburg, Germany, (5)Universidade de São Paulo, São Paulo, Brazil, (6)Cooperative Institute for Research in Environmental Sciences, Boulder, United States, (7)University of Leeds, ITS, Leeds, United Kingdom, (8)Federal University of Technology-Paraná, Londrina, Brazil, (9)USP University of Sao Paulo, Sao Paulo, Brazil, (10)Northeastern University, Boston, United States, (11)University of Sao Paulo, Institute of Astronomy, Geophysics and Atmospheric Sciences, Sao Paulo, Brazil, (12)Universidad del Desarrollo, Santiago, Chile, (13)Universidade Federal de Santa Catarina, Florianopolis, Brazil, (14)USP University of Sao Paulo, São Paulo, Brazil, (15)UFMG Federal University of Minas Gerais, Belo Horizonte, Brazil, (16)Universidad Tecnica del Norte, Ibarra, Ecuador, (17)Institute of Science and Technology Austria, Vienna, Austria, (18)Universidad Nacional de Chimborazo, Chimborazo, Ecuador, (19)Municipality of Quito, Quito, Ecuador, (20)Universidade do Estado do Rio de Janeiro, Rio de Janeiro, Brazil, (21)Universidad Nacional de Avellaneda, Avellaneda, Argentina, (22)University of São Paulo, Physics Institute, São Paulo, Brazil, (23)Universidad de Chile, Department of Geophysics, Santiago, Chile, (24)Pontifical Catholic University of Chile, Santiago, Chile, (25)Universidad Nacional de Colombia, Bogota, Colombia, (26)Universidad Nacional de Colombia Sede Bogotá, Bogotá, Colombia, (27)NSF National Center for Atmospheric Research (NSF NCAR), Atmospheric Chemistry Observations & Modeling Laboratory (ACOM), Boulder, United States, (28)National Center for Atmospheric Research, Atmospheric Chemistry Observations & Modeling Laboratory, Boulder, United States