1. NOAA Chemical Sciences Laboratory (CSL) Boulder CO USA
2. Cooperative Institute for Research in Environmental Sciences University of Colorado Boulder Boulder CO USA
3. Department of Chemistry University of Colorado Boulder Boulder CO USA
4. Now at Laboratory of Atmospheric Chemistry Paul Scherrer Institute (PSI) Villigen Switzerland
5. Now at National Center for Atmospheric Research Boulder CO USA
6. Now at Université Savoie Mont Blanc INRAE CARRTEL Thonon‐les‐Bains France
7. NASA Ames Research Center Moffett Field CA USA
8. NASA Langley Research Center Hampton VA USA
9. Faculty of Physics Aerosol Physics and Environmental Physics University of Vienna Vienna Austria
10. Atmospheric Chemistry Observations and Modeling Laboratory National Center for Atmospheric Research Boulder CO USA
11. Department of Atmospheric Sciences University of Washington Seattle WA USA
12. Now at Institute of Energy and Climate Research IEK‐8: Troposphere Forschungszentrum Jülich GmbH Jülich Germany
13. Air Quality Research Division (AQRD) Environment and Climate Change Canada Toronto ON Canada
14. Department of Earth, Ocean, and Atmospheric Science Florida State University Tallahassee FL USA
15. Department of Atmospheric Science Colorado State University Fort Collins CO USA
16. Center for Aerosol and Cloud Chemistry Aerodyne Research, Inc. Billerica MA USA
17. Now at Department of Chemistry and Biochemistry Weber State University Ogden UT USA
18. Institute for Ion Physics and Applied Physics University of Innsbruck Innsbruck Austria
19. Department of Chemistry University of Oslo Oslo Norway
20. Now at Colorado Department of Public Health and Environment Denver CO USA
21. Graduate School of Nanobioscience Yokohama City University Yokohama Japan
22. Science Systems and Applications, Inc. (SSAI) Hampton VA USA
23. Now at Cooperative Institute for Research in Environmental Sciences University of Colorado Boulder Boulder CO USA
24. Now at Finnish Meteorological Institute Helsinki Finland
25. Now at Institute for Atmospheric and Earth System Research/Physics Faculty of Science University of Helsinki Helsinki Finland