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Title: Three multimedia models used at hazardous and radioactive waste sites

Multimedia models are used commonly in the initial phases of the remediation process where technical interest is focused on determining the relative importance of various exposure pathways. This report provides an approach for evaluating and critically reviewing the capabilities of multimedia models. This study focused on three specific models MEPAS Version 3.0, MMSOILS Version 2.2, and PRESTO-EPA-CPG Version 2.0. These models evaluate the transport and fate of contaminants from source to receptor through more than a single pathway. The presence of radioactive and mixed wastes at a site poses special problems. Hence, in this report, restrictions associated with the selection and application of multimedia models for sites contaminated with radioactive and mixed wastes are highlighted. This report begins with a brief introduction to the concept of multimedia modeling, followed by an overview of the three models. The remaining chapters present more technical discussions of the issues associated with each compartment and their direct application to the specific models. In these analyses, the following components are discussed: source term; air transport; ground water transport; overland flow, runoff, and surface water transport; food chain modeling; exposure assessment; dosimetry/risk assessment; uncertainty; default parameters. The report concludes with a description of evolving updates tomore » the model; these descriptions were provided by the model developers.« less
Authors:
; ; ; ;  [1] ; ;  [2]
  1. Brookhaven National Lab., Upton, NY (United States)
  2. Geraghty and Miller, Inc., Plainview, NY (United States)
Publication Date:
OSTI Identifier:
212481
Report Number(s):
BNL--62863
ON: DE96008725; TRN: 96:010581
DOE Contract Number:
AC02-76CH00016
Resource Type:
Technical Report
Resource Relation:
Other Information: PBD: Feb 1996
Research Org:
Brookhaven National Lab., Upton, NY (United States)
Sponsoring Org:
USDOE, Washington, DC (United States);Environmental Protection Agency, Washington, DC (United States);Nuclear Regulatory Commission, Washington, DC (United States)
Country of Publication:
United States
Language:
English
Subject:
05 NUCLEAR FUELS; 54 ENVIRONMENTAL SCIENCES; REMEDIAL ACTION; PLANNING; RADIONUCLIDE MIGRATION; MATHEMATICAL MODELS; AIR; SURFACE WATERS; GROUND WATER; HAZARDOUS MATERIALS; MIXTURES; SOURCE TERMS; FOOD CHAINS