1. Department of Chemistry, Colorado State University, Fort Collins, Colorado 80523, United States
2. Department of Atmospheric Science, Colorado State University, Fort Collins, Colorado 80523, United States
3. National Institute for Public Health and the Environment (RIVM), P.O. Box 1, 3720 BA Bilthoven, The Netherlands
4. Institute for Marine and Atmospheric Research Utrecht, Utrecht University, 3508 CS Utrecht, The Netherlands
5. NOAA Chemical Sciences Laboratory (CSL), 325 Broadway, Boulder, Colorado 80305 United States
6. DuPont Fluorochemicals, Wilmington, Delaware 19805, United States
7. Institute for Governance & Sustainable Development (IGSD), 2300 Wisconsin Ave. NW, 300B, Washington, D.C. 20007, United States