1. Department of Environmental Toxicology, The Institute of Environmental and Human Health, Texas Tech University, Box 41163, Lubbock, Texas, 79409-1163, The Institute of Environmental and Human Health Field Station, Jeffersonian Institute, P.O. Box 764, Jefferson, Texas, 75657, Department of Math and Science, Oglala Lakota College, 490 Piya Wiconi Road, Kyle, South Dakota, 57752, Department of Biological Sciences, Biology Building, Texas Tech University, Lubbock, Texas, 79409-3131, and TraceAnalysis,...