Environmental assessments for the existing radioactive materials in the Weldon Spring raffinate pits. [Various radioactive residues and wastes from processing of uranium and thorium between 1957 and 1966]

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Various radioactive residues (raffinates) and wastes from the processing of uranium and thorium between 1957 and 1966 are stored in four pits at Weldon Spring, Missouri. The US Department of Energy (DOE) plans to stabilize all the contaminated materials on a long-term (more than 1000-year) basis. The effectiveness of stabilization measures are evaluated by estimating radioactive releases under two options: (1) no action, and (2) improved containment using the existing raffinate pits. Two major pathways of radiation exposure are examined: (1) airborne radioactive gases and particulates, and (2) seepage into near-surface groundwater. The relative reductions of releases into the air ... continued below

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Pages: 9

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Yang, J.Y. & Wang, J. January 1, 1985.

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Description

Various radioactive residues (raffinates) and wastes from the processing of uranium and thorium between 1957 and 1966 are stored in four pits at Weldon Spring, Missouri. The US Department of Energy (DOE) plans to stabilize all the contaminated materials on a long-term (more than 1000-year) basis. The effectiveness of stabilization measures are evaluated by estimating radioactive releases under two options: (1) no action, and (2) improved containment using the existing raffinate pits. Two major pathways of radiation exposure are examined: (1) airborne radioactive gases and particulates, and (2) seepage into near-surface groundwater. The relative reductions of releases into the air and groundwater for a reference stabilization option (improved containment) are analyzed using mathematical models for radioactive and particulate gas fluxes and atmospheric dispersion, as well as groundwaterr transport and dispersion. The consequent health risks for nearby individuals and the general public are also evaluated. This study focuses on the migration of radionuclides under existing conditions and evaluates the effectiveness of proposed stabilization measures at the pits. Results indicate that the potential effects to the general public would be insignificant. 22 refs., 2 figs., 6 tabs.

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Pages: 9

Notes

NTIS, PC A02/MF A01; 1.

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  • Conference on technology and science, Newton, MA, USA, 29 Nov 1985

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  • Other: DE86003069
  • Report No.: CONF-8511127-2
  • Grant Number: W-31-109-ENG-38
  • Office of Scientific & Technical Information Report Number: 6475012
  • Archival Resource Key: ark:/67531/metadc1210625

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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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  • January 1, 1985

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  • July 5, 2018, 11:11 p.m.

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  • Oct. 18, 2018, 5:11 p.m.

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Yang, J.Y. & Wang, J. Environmental assessments for the existing radioactive materials in the Weldon Spring raffinate pits. [Various radioactive residues and wastes from processing of uranium and thorium between 1957 and 1966], article, January 1, 1985; United States. (digital.library.unt.edu/ark:/67531/metadc1210625/: accessed November 17, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.