Assessment for potential radionuclide emissions from stacks and diffuse and fugitive sources on the Hanford Site

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By using the six EPA-approved methods, instead of only the original back calculation method for assessing the 84 WHC registered stacks, the number of stacks requiring continuous monitoring was reduced from 32 to 19 stacks. The intercomparison between results showed that no correlation existed between back calculations and release fractions. Also the NDA, upstream air samples, and powder release fraction method results were at least three orders of magnitude lower then the back calculations results. The most surprising results of the assessment came from NDA. NDA was found to be an easy method for assessing potential emissions. For the nine ... continued below

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32 p.

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Davis, W.E.; Schmidt, J.W.; Gleckler, B.P. & Rhoads, K. June 1, 1995.

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  • Westinghouse Hanford Company
    Publisher Info: Westinghouse Hanford Co., Richland, WA (United States)
    Place of Publication: Richland, Washington

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Description

By using the six EPA-approved methods, instead of only the original back calculation method for assessing the 84 WHC registered stacks, the number of stacks requiring continuous monitoring was reduced from 32 to 19 stacks. The intercomparison between results showed that no correlation existed between back calculations and release fractions. Also the NDA, upstream air samples, and powder release fraction method results were at least three orders of magnitude lower then the back calculations results. The most surprising results of the assessment came from NDA. NDA was found to be an easy method for assessing potential emissions. For the nine stacks assessed by NDA, all nine of the stacks would have required continuous monitoring when assessed by back calculations. However, when NDA was applied all stacks had potential emissions that would cause an EDE below the > 0.1 mrem/y standard. Apparent DFs for the HEPA filter systems were calculated for eight nondesignated stacks with emissions above the detection limit. These apparent DFs ranged from 0.5 to 250. The EDE dose to the MEI was calculated to be 0.028 mrem/y for diffuse and fugitive emissions from the Hanford Sited. This is well below the > 0.1 mrem/y standard.

Physical Description

32 p.

Notes

INIS; OSTI as DE95016338

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  • Summer national meeting of the American Institute of Chemical Engineers, Boston, MA (United States), 30 Jul - 2 Aug 1995

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  • Other: DE95016338
  • Report No.: WHC-SA--2885
  • Report No.: CONF-9507119--1
  • Grant Number: AC06-87RL10930
  • DOI: 10.2172/71319 | External Link
  • Office of Scientific & Technical Information Report Number: 106437
  • Archival Resource Key: ark:/67531/metadc621624

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  • June 1, 1995

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  • June 16, 2015, 7:43 a.m.

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  • Feb. 8, 2016, 1:05 p.m.

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Davis, W.E.; Schmidt, J.W.; Gleckler, B.P. & Rhoads, K. Assessment for potential radionuclide emissions from stacks and diffuse and fugitive sources on the Hanford Site, article, June 1, 1995; Richland, Washington. (digital.library.unt.edu/ark:/67531/metadc621624/: accessed September 24, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.