1. Atmospheric Chemistry Observations and Modeling Laboratory National Center for Atmospheric Research Boulder Colorado USA
2. Rosenstiel School of Marine and Atmospheric Science University of Miami Miami Florida USA
3. Department of Chemistry and Biochemistry University of Colorado Boulder Boulder Colorado USA
4. School of Earth and Atmospheric Sciences Georgia Institute of Technology Atlanta Georgia USA
5. Now at Cooperative Institute for Research in Environmental Sciences University of Colorado Boulder Boulder Colorado USA
6. Now at Chemical Sciences Division, Earth System Research Laboratory NOAA Boulder Colorado USA
7. Now at Department of Physics, University of Helsinki Helsinki Finland
8. Now at Department of Atmospheric Oceanic Sciences University of Colorado Boulder Boulder Colorado USA
9. Department of Chemistry Purdue University West Lafayette Indiana USA
10. Department Earth, Atmospheric, and Planetary Sciences and Purdue Climate Change Research Center Purdue University West Lafayette Indiana USA
11. Climate Change Research Center, Institute for the Study of Earth, Oceans, and Space University of New Hampshire Durham New Hampshire USA
12. Now at Air Resources Division National Park Service Lakewood Colorado USA
13. Air Quality Processes Section Environment and Climate Change Canada Toronto Ontario Canada