Dose Reconstruction for the Fernald Facility A Review of Task 4 (1994) / Chapter Skim
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I. INTRODUCTION
I. INTRODUCTION
Pages 3-11
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, has begun a series of studies to assess the possible health consequences of exposure to emissions of radioactive materials from DOE-managed nuclear facilities throughout the United States. At CDC's request, the Board on Radiation Effects Research in the National Research Council (NRC)
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around the production area. (Reproduced from Radiological Assessments Corporation (1993)
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A FERNALD NUCLEAR FACILITY In its 1992 report, the NRC committee described the operations of FMPC which was, until 1989, a large-scale government-owned, contractor-operated facility that produced uranium metal products used as feed materials in DOE defense programs.
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B METHODS USED IN THE RADIOLOGICAL ASSESSMENTS CORPORATION REPORT The purpose of RAC's Fernald Dosimetry Reconstruction Project is to estimate the radiation doses received by members of the public who lived near FMPC between 1951 and 1989.
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This pattern of deposition resulted from the relatively dense nature and large size of the particles containing the uranium that were released. The study's environmental models focus on five environmental pathways through which the released radioactive materials move leaks from storage containers releases to the air 7
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However, the model estimates that about half of the uranium released to the atmosphere emerged from scrubbers in the form of large droplets that rapidly agglomerated into large particles with diameters of 30-lSO ~m. The RAC authors considered three main issues in their choice of an air dispersion model: wind trajectories, building wake effects, and whether the model could be validated against air-monitoring data.
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, were used to conclude that the major pathways that contribute to radiation dose from uranium in the surface water (originating from the main effluent line to the Great Miami River and from runoff and spills entering Paddy's Run) were those involving ingestion of drinking water and consumption of local fish.
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In its review, the committee focused on the source term, atmospheric transport, surface and groundwater exposure pathways, and dose assessment. Special attention was given to an examination of the models used and to RAC's validation methods and uncertainty estimates.
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2 (Voilloque et al., 1991) , reviewed previously by the NRC committee in its report Dose Reconstruction for tile Femald Nuclear Facility (National Research Council, 1992~.
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