1. Scripps Institution of Oceanography University of California, San Diego La Jolla CA USA
2. Now at Department of Chemistry University of Michigan Ann Arbor MI USA
3. ENAC/IIE Swiss Federal Institute of Technology Lausanne (EPFL) Lausanne Switzerland
4. Department of Chemistry and Biochemistry and Cooperative Institute for Research in Environmental Sciences University of Colorado Boulder Boulder CO USA
5. National Exposure Research Laboratory U.S. Environmental Protection Agency Research Triangle Park NC USA
6. Division of Geological and Planetary Sciences California Institute of Technology Pasadena CA USA
7. School of Chemical and Biomolecular Engineering Georgia Institute of Technology Atlanta GA USA
8. School of Earth and Atmospheric Sciences Georgia Institute of Technology Atlanta GA USA
9. School of Engineering and Applied Sciences Harvard University Cambridge MA USA
10. Earth Observatory of Singapore Nanyang Technological University Singapore
11. Department of Chemistry University of Wisconsin‐Madison Madison WI USA
12. Department of Environmental Sciences and Engineering, Gillings School of Global Public Health University of North Carolina at Chapel Hill Chapel Hill NC USA