Radiological risk from consuming fish and wildlife to Native Americans on the Hanford Site (USA)

Environmental Research
Damon DelistratyElizabeth A Rochette

Abstract

Historical operations at the Hanford Site (Washington State, USA) have released a wide array of non-radionuclide and radionuclide contaminants into the environment. As a result of stakeholder concerns, Native American exposure scenarios have been integrated into Hanford risk assessments. Because its contribution to radiological risk to Native Americans is culturally and geographically specific but quantitatively uncertain, a fish and wildlife ingestion pathway was examined in this study. Adult consumption rates were derived from 20 Native American scenarios (based on 12 studies) at Hanford, and tissue concentrations of key radionuclides in fish, game birds, and game mammals were compiled from the Hanford Environmental Information System (HEIS) database for a recent time interval (1995-2007) during the post-operational period. It was assumed that skeletal muscle comprised 90% of intake, while other tissues accounted for the remainder. Acknowledging data gaps, median concentrations of eight radionuclides (i.e., Co-60, Cs-137, Sr-90, Tc-99, U-234, U-238, Pu-238, and Pu-239/240) in skeletal muscle and other tissues were below 0.01 and 1 pCi/g wet wt, respectively. These radionuclide concentrations were not significantly different (...Continue Reading

References

Feb 17, 1998·Risk Analysis : an Official Publication of the Society for Risk Analysis·S G Harris, B L Harper
Jul 17, 2007·Environmental Research·Barbara L Harper, Stuart G Harris
Sep 17, 2008·Risk Analysis : an Official Publication of the Society for Risk Analysis·Jamie Donatuto, Barbara L Harper

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Citations

Sep 6, 2011·Environmental Health Perspectives·Anna HardingJamie Donatuto
May 9, 2013·Journal of Empirical Research on Human Research Ethics : JERHRE·Joshua K TobiasIsaac Luginaah
May 3, 2011·Journal of Environmental Radioactivity·Damon Delistraty, Scott Van Verst
Sep 10, 2010·Environmental Research·Damon DelistratyElizabeth A Rochette
Sep 14, 2010·Environmental Research·Scott Van VerstElizabeth A Rochette

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