[1] Univ Calif San Diego, Dept Chem & Biochem, San Diego, CA 92093 USA
[2] Univ Calif Davis, Dept Environm Toxicol, Davis, CA 95616 USA
[3] Univ Calif Davis, Dept Civil & Environm Engn, Davis, CA 95616 USA
[4] Univ Calif Irvine, Dept Chem, Irvine, CA 92697 USA