1. Lamont-Doherty Earth Observatory, Columbia University, Palisades, New York10964, United States
2. Department of Earth and Environmental Sciences, Columbia University, New York, New York10027, United States
3. Department of Chemistry, University of California, Berkeley, Berkeley, California94720, United States
4. NASA Langley Research Center, Hampton, Virginia23681, United States
5. NASA Goddard Space Flight Center, Greenbelt, Maryland20771, United States
6. Northeast States for Coordinated Air Use Management, Boston, Massachusetts02111, United States
7. New Jersey Department of Environmental Protection, Trenton, New Jersey08625, United States
8. The City College of New York, New York, New York10031, United States
9. US Environmental Protection Agency, Research Triangle Park, North Carolina27711, United States
10. New York State Department of Environmental Conservation, Albany, New York12233, United States