Summary of Radiological Monitoring of Columbia and Snake River Sediment, 1988 Through 2004

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From 1988 through 2004, samples of upper-layer sediments from the Columbia River and Snake River were collected under the Hanford Site Surface Environmental Surveillance Project to document concentrations and trends of radionuclides. Low concentrations of potassium-40, cesium-137, uranium isotopes, and plutonium isotopes were detected consistently in sediment samples over the entire sampling period. The concentrations of most radionuclides were similar to values measured upstream of the Hanford Site behind Priest Rapids Dam. For all locations, the concentrations of radionuclides in sediment samples from the Columbia and Snake rivers were below concentrations that would result in a 1-mrem effective dose equivalent ... continued below

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Patton, Gregory W. & Dirkes, Roger L. October 1, 2007.

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From 1988 through 2004, samples of upper-layer sediments from the Columbia River and Snake River were collected under the Hanford Site Surface Environmental Surveillance Project to document concentrations and trends of radionuclides. Low concentrations of potassium-40, cesium-137, uranium isotopes, and plutonium isotopes were detected consistently in sediment samples over the entire sampling period. The concentrations of most radionuclides were similar to values measured upstream of the Hanford Site behind Priest Rapids Dam. For all locations, the concentrations of radionuclides in sediment samples from the Columbia and Snake rivers were below concentrations that would result in a 1-mrem effective dose equivalent to a hypothetical exposed individual using a shoreline exposure scenario (i.e., 500 hr/yr of external dose). The DOE limit for public exposure is 100 mrem/yr.

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  • Report No.: PNNL-16990
  • Grant Number: AC05-76RL01830
  • DOI: 10.2172/919312 | External Link
  • Office of Scientific & Technical Information Report Number: 919312
  • Archival Resource Key: ark:/67531/metadc878909

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

Office of Scientific and Technical Information (OSTI) is the Department of Energy (DOE) office that collects, preserves, and disseminates DOE-sponsored research and development (R&D) results that are the outcomes of R&D projects or other funded activities at DOE labs and facilities nationwide and grantees at universities and other institutions.

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  • October 1, 2007

Added to The UNT Digital Library

  • Sept. 22, 2016, 2:13 a.m.

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  • Dec. 7, 2016, 10:44 p.m.

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Patton, Gregory W. & Dirkes, Roger L. Summary of Radiological Monitoring of Columbia and Snake River Sediment, 1988 Through 2004, report, October 1, 2007; Richland, Washington. (digital.library.unt.edu/ark:/67531/metadc878909/: accessed October 20, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.