[1] US EPA, Off Res & Dev, Res Triangle Pk, NC 27711 USA
[2] Pacific Northwest Natl Lab, Joint Global Change Res Inst, College Pk, MD USA
[3] Univ Washington, Dept Global Hlth, Seattle, WA 98195 USA
[4] Pacific Inst, Oakland, CA USA
[5] Social & Environm Res Inst, Northampton, MA USA
[6] Natl Ctr Atmospher Res, POB 3000, Boulder, CO 80307 USA
[7] Ohio State Univ, Sch Environm & Nat Resources, Columbus, OH 43210 USA
[8] Univ Michigan, Sch Nat Resources & Environm, Ann Arbor, MI 48109 USA