1. Environment and
Climate Change Canada, Toronto, Ontario, Canada
2. Independent Researcher, Stratford, Prince Edward Island, Canada
3. National
Atmospheric Deposition Program, University of Illinois, Champaign, Illinois 61801, United States
4. U.S. Geological
Survey, Indianapolis, Indiana 46278, United States
5. The University of Tennessee Space Institute, Tullahoma, Tennessee 37388, United States
6. University of Maryland, Frostburg, Maryland 21532, United States
7. GreenReach LLC, Glouster, Ohio 45732, United States
8. Atmospheric Research & Analysis, Inc., Cary, North Carolina 27513, United States
9. Clarkson University, Potsdam, New York 13699, United States
10. NOAA Air Resources
Laboratory, College Park, Maryland 20740, United States
11. Environment
and
Climate Change Canada, Dartmouth, Nova Scotia, Canada
12. University of California, Santa
Cruz, California 95064, United States