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Conceptual Site Models and Multimedia Modeling: Comparing MEPAS,MMSOILS, and RESRAD |
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| Authors: | James L. Regens Karen R. Obenshain Curtis Travis Chris Whipple |
| Affiliation: | 1. University of Oklahoma, Institute for Science and Public Policy, 100 E. Boyd, Room 510, Norman, OK 73019-1006;2. Keller and Heckman LLP, 1001 G Street, NW, Suite 500W, Washington, DC 20001;3. Tel(voice): 202-434-4118, Tel(fax): 202-434-4646;4. obenshain@khlaw.com;5. Quest, 8112 Bennington Drive, Knoxville, TN 37909;6. Environ Corp., 6001 Shellmount St., Suite 700, Emeryville, CA 94608 |
| Abstract: | The use of multimedia models to assess current and future human and ecological exposure to contamination at hazardous waste sites has become common practice in recent years. The U.S. Environmental Protection Agency has identified development of a conceptual site model as a critical part of the risk assessment process. This paper investigates the relationship between the choice of conceptual site models and application of multimedia models and the variation in risk estimates obtained when using data and default parameter values suggested by the individual model developers. |
| Keywords: | conceptual site models multimedia models risk assessment. |