Critical Radionuclide/Critical Pathway Analysis for the U.S. Department of Energy's Savannah River Site
Tóm tắt
Many different radionuclides have been released to the environment from the Savannah River Site (SRS) during the facility's operational history. However, as shown by this analysis, only a small number of the released radionuclides have been significant contributors to potential doses and risks to off-site people. This article documents the radiological critical contaminant/critical pathway analysis performed for SRS. If site missions and operations remain constant over the next 30 years, only tritium oxide releases are projected to exceed a maximally exposed individual (MEI) risk of 1.0E-06 for either the airborne or liquid pathways. The critical exposure pathways associated with site airborne releases are inhalation and vegetation consumption, whereas the critical exposure pathways associated with liquid releases are drinking water and fish consumption. For the SRS-specific, nontypical exposure pathways (i.e., recreational fishing and deer and hog hunting), cesium-137 is the critical radionuclide.
Tài liệu tham khảo
M. W. Arnett and A. R. Mamatey, Savannah River Site Envi-ronmental Report for 1996WSRC-TR-96-0171, pp. 135–167 (Savannah River Site, Aiken, SC, 1997).
C. S. Hetrick, C. L. Cummins, and D. K. Martin, Radioactive Releases at the Savannah River Site 1954- 1989s. WSRC-RP-91-684, (Savannah River Site, Aiken, SC, 1991).
G. T. Jannik, Assessment of SRS Radiological Liquid and Airborne Contaminants and PathwaysWSRC-TR-970152, (Savannah River Site, Aiken, SC, 1997).
U.S. Department of Energy, Radiation Protection of the Public and the EnvironmentDOE Order 5400.5 (Washington, D.C., 1990).
D. M. Hamby, “A Probabilistic Estimation of Atmospheric Tritium Dose,” Health Physics 65(1), pp. 33–40(1993).
J. F. Sagendorf, J. T. Croll, and W. F. Sendusky, XOQDOQ: Computer Program for the Meteorological Evaluation of Rou-tine Effluent Releases at Nuclear Power StationsNUREG/ CR-2919, (U.S. Nuclear Regulatory Commission, Washington, D.C., 1982).
K. F. Eckerman, F. J. Congel, A. K. Roecklein, and W. J. Pasciak, Users Guide to GASPAR CodeNUREG-0597. (U.S. Nuclear Regulatory Commission, Washington, D.C. 1980).
D. M. Hamby, LADTAP XL: An Improved Electronic Spread-sheet Version of LADTAP IIWSRC-RP-91-975, (Savannah River Site, Aiken, SC, 1991).
K. F. Simpson and B. L. McGill, Users Manual for LADTAP II—A Computer Program for Calculating Radiation Exposure to Man from Routine Release of Nuclear Reactor Liquid Efflu-ents. NUREG/CR-1276, ORNL/NUREG/TOMC-1, (Oak Ridge National Laboratory, Oak Ridge, TN, 1980).
U.S. Nuclear Regulatory Commission, Estimating Aquatic Dis-persion of Effluents from Accidental and Routine Releases for the Purpose of Implementing Appendix IRegulatory Guide 1.113 (Rev. 1), (Washington, D.C., 1977).
International Commission on Radiological Protection, Recom-mendations of the ICRP.Publication 30(Elmsford, NY, 1979).
U.S. Department of Energy, External Dose Conversion Factors for Calculation of Dose to the PublicDOE/EH-0070, (Wash-ington, D.C., 1988).
U.S. Department of Energy, Internal Dose Conversion Factors for Calculation of Dose to the PublicDOE/EH-0071, (Wash-ington, D.C., 1988).
U.S. Nuclear Regulatory Commission, Calculation of Annual Doses to Man from Routine Releases of Reactor Effluents for the Purpose of Evaluating Compliance with 10 CFR 50, Appen-dix IRegulatory Guide 1.109, (Washington, D.C., 1977).
D. M. Hamby, Land and Water Use Characteristics in the Vicinity of the Savannah River SiteWSRC-RP-91-17, (Savan-nah River Site, Aiken, SC, 1991).
M. W. Arnett and A. R. Mamatey, Savannah River Site Envi-ronmental Data for 1996WSRC-TR-97-0077, pp. 114–128(Sa-vannah River Site, Aiken, SC, 1997).
M. J. Parker, R. P. Addis, C. H. Hunter, R. J. Kurzeja, C. P. Tatum, and A. H. Weber, The 1987- 1991 Savannah River Site Meteorological Data Base (U)WSRC-RP-92-598, (Savannah River Site, Aiken, SC, 1992).
International Commission on Radiological Protection, Recom-mendations of the ICRP.Publication 60pp. 67–70, (Elmsford, NY, 1990).
U.S. Environmental Protection Agency, Risk Assessment Guidance for Superfund, Vol.I: Human Health Evaluation ManualSupplemental Guidance “Standard Default Exposure Factors” OSWER Directive: 9285.6-03, (Washington, DC, 1991).
M. V. Kantelo, L. R. Bauer, W. L. Marter, C. E. Murphy, Jr., and C. C. Ziegler, Radioiodine in the Savannah River Site EnvironmentWSRC-RP-90-424, Rev. 2, (Savannah River Site, Aiken, SC, 1993).
W. H. Carlton, L. R. Bauer, A. G. Evans, L. A. Geary, C. E. Murphy, Jr., J. E. Pinder, and R. N. Strom, Cesium in the Savannah River Site EnvironmentWSRC-RP-92-250, (Savannah River Site, Aiken, SC, 1992).
W. H. Carlton, A. G. Evans, L. A. Geary, C. E. Murphy, Jr., and R. N. Strom, Assessment of Strontium in the Savannah River Site EnvironmentWSRC-RP-92-984, (Savannah River Site, Aiken, SC, 1994).
W. H. Carlton and C. E. Murphy, Jr., Assessment of Noble Gases in the Savannah River Site EnvironmentWSRC-TR-95-219, (Savannah River Site, Aiken, SC, 1995).
C. E. Murphy, Jr., W. H. Carlton, L. R. Bauer, D. W. Hayes, W. L. Marter, C. C. Ziegler, R. L. Nichols, R. N. Strom, B. R. del Carmen, D. M. Hamby, D. D. Hoel, and D. E. Stephenson, Assessment of Tritium in the Savannah River Site EnvironmentWSRC-TR-93-214, (Savannah River Site, Aiken, SC, 1994).
W. H. Carlton and M. Denham, Assessment of Activation Prod-ucts in the Savannah River Site EnvironmentWSRC-TR-95-0422, (Savannah River Site, Aiken, SC, 1996).
W. H. Carlton, M. Denham, and A. G. Evans, Assessment of Technetium in the Savannah River Site EnvironmentWSRC-TR-93-217, (Savannah River Site, Aiken, SC, 1993).