1. University of Cincinnati, U.S. Environmental Protection Agency (USEPA) Research Trainee, Center for Environmental Solutions and Emergency Response (CESER), Cincinnati, OH 45268, USA
2. U.S. Food and Drug Administration, Forensic Chemistry Center, Cincinnati, OH 45237, USA
3. USEPA, Center for Environmental Measurement and Modeling (CEMM), Cincinnati, OH 45268, USA
4. Student Service Contractor, USEPA, CESER, Cincinnati, OH 45268, USA
5. USEPA, CESER, 26 W. Martin Luther King Drive, Cincinnati, OH 45268, USA
6. USEPA, Center for Environmental Measurement and Modeling (CEMM), Research Triangle Park, NC 27711, USA
7. USEPA, Office of Ground Water and Drinking Water, Cincinnati, OH 45268, USA
8. University of Cincinnati, Department of Chemistry, Cincinnati, OH 45221, USA