Actions for Radionuclides and radioactivity in soils within and around Los Alamos National Laboratory, 1974 through 1994 [electronic resource] : Concentrations, trends, and dose comparisons

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Radionuclides and radioactivity in soils within and around Los Alamos National Laboratory, 1974 through 1994 [electronic resource] : Concentrations, trends, and dose comparisons

Published
Washington, D.C. : United States. Dept. of Energy, 1996.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy.
Physical Description
46 pages : digital, PDF file
Additional Creators
Los Alamos National Laboratory, United States. Department of Energy, and United States. Department of Energy. Office of Scientific and Technical Information
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Summary
A soil sampling and analysis program is the most direct means of determining the concentration, inventory, and distribution of radionuclides and radioactivity in the environment within and around nuclear facilities. This report summarizes and evaluates the concentrations of ³H, ¹³⁷Cs, ²³⁸Pu, {sup 239,240}Pu, ²⁴¹Am, ⁹°Sr, total uranium, and gross alpha, beta, and gamma activity in soils collected from Los Alamos National Laboratory (LANL), perimeter, and regional (background) areas over a 21-year period (1974 through 1994). Also, trends in radionuclide concentrations and radioactivity over time and the total effective dose equivalent (TEDE) were determined for each site. The upper-limit regional background concentration (95% upper-confidence level) for each radionuclide and level of radioactivity were as follows: ³H (6.34 pCi mL{sup −1}), ¹³⁷Cs (1.13 pCi dry g{sup −1}), ²³⁸Pu (0.008 pCi dry g{sup −1}), {sup 239,240}Pu (0.028 pCi dry g{sup −1}), ²⁴¹Am (0.208 pCi dry g{sup −1}), ⁹°Sr (0.82 pCi dry g{sup −1}), total uranium (4.05 {micro}g dry g{sup −1}); and gross alpha (35.24 pCi dry g{sup −1}), beta (13.62 pCi dry g{sup −1}), and gamma (7.33 pCi dry g{sup −1}) activity. Based on the average over the years, most LANL and perimeter soils contained three or more radionuclides and/or gross radioactive that were significantly higher in concentration (p < 0.05) than regional background. The net dose (TEDE minus background) for residents living on-site at LANL or along its perimeter ranged from −0.3 mrem y{sup −1} (east of TA-54) to 3.8 mrem y{sup −1} (east of Ta-53) and from −0.4 mrem y{sup −1} (White Rock) to 3.6 mrem yy{sup −1} (west of LANL on Forest Service land across from TA-8GT site).
Report Numbers
E 1.99:la--13149-ms
la--13149-ms
Subject(s)
Other Subject(s)
Note
Published through SciTech Connect.
04/01/1996.
"la--13149-ms"
"DE96010051"
Mullen, M.A.; Fresquez, P.R.; Ferenbaugh, J.K.; Perona, R.A.
Funding Information
W-7405-ENG-36
View MARC record | catkey: 14143386