1. Graduate School of Public Health, San Diego State University, 5500 Campanile Drive, San
Diego, California 92182, United States
2. Southern California Coastal Water Research Project, 3535 Harbor Boulevard,
Costa Mesa, California 92626, United States
3. Eastern Regional Research Center,
Agricultural Research Service, U.S. Department of Agriculture, 600 East Mermaid Lane, Wyndmoor, Pennsylvania 19038, United States
4. Department of Chemistry, Colgate University, 13 Oak Drive, Hamilton, New York
13446, United States
5. Department
of Marine Chemistry
and Geochemistry, Woods Hole Oceanographic Institution, Woods Hole, Massachusetts 02543, United States