1. National Research Council Resident Research Associate at the United States Environmental Protection Agency, Ada, Oklahoma 74820, United States
2. Department of Civil, Architectural and Environmental Engineering, University of Texas at Austin, Austin, Texas 78712, United States
3. Department of Civil and Environmental Engineering, Southern Methodist University, Dallas, Texas 75275, United States
4. Department of Environmental Engineering, Kyungpook National University, Buk-gu, Daegu 41566, South Korea
5. Department of Soil and Water Sciences, China Agricultural University, Beijing 100193, China
6. Department of Civil, Structural and Environmental Engineering, University at Buffalo, The State University of New York, Buffalo, New York 14260, United States
7. Institute of Environmental Sciences (CML), Leiden University, P.O. Box 9518, 2300 RA Leiden, The Netherlands
8. Center for Safety of Substances and Products, National Institute for Public Health and the Environment, P.O. Box 1, 3720 BA Bilthoven, The Netherlands
9. Department of Plant, Soil and Microbial Sciences, and Environmental Science and Policy Program, Michigan State University, East Lansing, Michigan 48824, United States
10. Department of Plant and Soil Sciences, University of Delaware, Newark, Delaware 19716, United States
11. Groundwater, Watershed, and Ecosystem Restoration Division, National Risk Management Research Laboratory, Office of Research and Development, United States Environmental Protection Agency, Ada, Oklahoma 74820, United States