Radionuclide contaminant analysis of small mammels, plants and sediments within Mortandad Canyon, 1994

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Small mammals, plants and sediments were sampled at one upstream location (Site 1) and two downstream locations (Site 2 and Site 3) from the National Pollution Discharge Elimination System outfall {number_sign}051-051 in Mortandad Canyon, Los Alamos County, New Mexico. The purpose of the sampling was to identify radionuclides potentially present, to quantitatively estimate and compare the amount of radionuclide uptake at specific locations (Site 2 and Site 3) within Mortandad Canyon to an upstream site (Site 1), and to identify the primary mode (inhalation ingestion, or surface contact) of contamination to small mammals. Three composite samples of at least five ... continued below

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32 p.

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Bennett, K.; Biggs, J. & Fresquez, P. January 1, 1996.

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Description

Small mammals, plants and sediments were sampled at one upstream location (Site 1) and two downstream locations (Site 2 and Site 3) from the National Pollution Discharge Elimination System outfall {number_sign}051-051 in Mortandad Canyon, Los Alamos County, New Mexico. The purpose of the sampling was to identify radionuclides potentially present, to quantitatively estimate and compare the amount of radionuclide uptake at specific locations (Site 2 and Site 3) within Mortandad Canyon to an upstream site (Site 1), and to identify the primary mode (inhalation ingestion, or surface contact) of contamination to small mammals. Three composite samples of at least five animals per sample were collected at each site. Pelts and carcasses of each animal were separated and analyzed independently. In addition, three composite samples were also collected for plants and sediments at each site. Samples were analyzed for {sup 241}Am, {sup 90}Sr, {sup 238}Pu, {sup 239}Pu, and total U. With the exception of total U, all mean radionuclide concentrations in small mammal carcasses and sediments were significantly higher at Site 2 than Site 1 or Site 3. No differences were detected in the mean radionuclide concentration of plant samples between sites. However, some radionuclide concentrations found at all three sites were higher than regional background. No differences were found between mean carcass radionuclide concentrations and mean pelt radionuclide concentrations, indicating that the two primary modes of contamination may be equally occurring.

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32 p.

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INIS; OSTI as DE96007463

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  • Other Information: PBD: Jan 1996

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  • Other: DE96007463
  • Report No.: LA--13104-MS
  • Grant Number: W-7405-ENG-36
  • DOI: 10.2172/204995 | External Link
  • Office of Scientific & Technical Information Report Number: 204995
  • Archival Resource Key: ark:/67531/metadc671465

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  • January 1, 1996

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  • June 29, 2015, 9:42 p.m.

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  • Feb. 26, 2016, 3:59 p.m.

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Bennett, K.; Biggs, J. & Fresquez, P. Radionuclide contaminant analysis of small mammels, plants and sediments within Mortandad Canyon, 1994, report, January 1, 1996; New Mexico. (digital.library.unt.edu/ark:/67531/metadc671465/: accessed August 21, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.