1. NASA Langley Research Center Hampton Virginia USA
2. NASA Postdoctoral ProgramNASA Langley Research Center Hampton Virginia USA
3. Institute of Arctic and Alpine ResearchUniversity of Colorado Boulder Boulder Colorado USA
4. National Center for Atmospheric Research Boulder Colorado USA
5. Institute of Ion Physics and Applied PhysicsUniversity of Innsbruck Innsbruck Austria
6. Department of ChemistryUniversity of Oslo Oslo Norway
7. Department of ChemistryUniversity of California Irvine California USA
8. Texas Commission on Environmental Quality Austin Texas USA
9. Department of MeteorologyPenn State University University Park Pennsylvania USA
10. NASA Goddard Space Flight Center Greenbelt Maryland USA
11. Department of Earth and Atmospheric ScienceUniversity of Houston Houston Texas USA
12. Now at NASA Headquarters Washington DC USA
13. National Exposure Research LaboratoryU.S. EPA Research Triangle Park North Carolina USA
14. Colorado Department of Public Health and Environment Denver Colorado USA