Institution: | 1. Chemical Sciences Division, National Institute of Standards and Technology, 100 Bureau Dr., Mail Stop 8392, Gaithersburg, MD, 20899-8392, USA 2. Chemical Sciences Division, National Institute of Standards and Technology, 331 Ft. Johnson Road, Charleston, SC, 29412, USA 3. Colorado School of Mines, 1500 Illinois St., Golden, CO, 80401, USA 4. Minnesota Department of Health, Saint Paul, MN, 55164-0975, USA 5. US Environmental Protection Agency, 960 College Station Rd, Athens, GA, 30605, USA 6. Wageningen IMARES, Haringkade 1, 1970, Ijmuiden, The Netherlands 7. Environmental Laboratory, 3M Company, 935 Bush Avenue, St. Paul, MN, 55144, USA 8. Water Science and Technology Directorate, Environment Canada, Burlington, ON, Canada 9. US Environmental Protection Agency, Research Triangle Park, NC, USA
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