1. Department of Chemistry University of California Berkeley California USA
2. Now at Lawrence Berkeley National Laboratory Berkeley California USA
3. Now at Department of Chemistry, University of the Pacific Stockton California USA
4. William R. Wiley Environmental and Molecular Sciences Laboratory Pacific Northwest National Laboratory Richland Washington USA
5. Physical Sciences Division Pacific Northwest National Laboratory Richland Washington USA
6. Department of Environmental Sciences and Engineering, Gillings School of Global Public Health The University of North Carolina at Chapel Hill Chapel Hill North Carolina USA
7. Department of Environmental Science, Policy, and Management University of California Berkeley California USA
8. Department of Civil and Environmental Engineering University of California Berkeley California USA