1. Department of Biological Sciences, University of Southern Mississippi, Hattiesburg;
2. U.S. Army Engineer Research and Development Center, Environmental Laboratory, EP-P;
3. SpecPro Incorporated, Environmental Laboratory, EP-P, Vicksburg;
4. Jackson State University, Department of Chemistry, Jackson, Mississippi;
5. U.S. Army Center for Health Promotion and Preventative Medicine, Aberdeen Proving Ground, Maryland