Measured plutonium resuspension and resulting dose from agricultural operations on an old field at the Savannah River Plant in the southeastern United States

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Plutonium resuspensions, based on air-sample activity, were measured during field preparation and planting of winter wheat at the Savannah River Plant (SRP). Plutonium was originally deposited in the field during the previous twenty years as a result of atmospheric releases from SRP's nuclear fuel processing facility located adjacent to the field, and from global fallout following nuclear weapons tests conducted at other sites. During soil cultivation when the prevailing wind speed ranged from 0 to 6.3 m/sec, airborne plutonium upwind of the field consistently averaged 1.7 femtocurie/m$sup 3$. Airborne plutonium concentrations during the various activities associated with site preparation and ... continued below

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17 p.

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Milham, R C; Schubert, J F; Watts, J R; Boni, A L & Corey, J C January 1, 1975.

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  • Savannah River Laboratory
    Publisher Info: Du Pont de Nemours (E.I.) and Co., Aiken, S.C. (USA). Savannah River Lab.
    Place of Publication: Aiken, South Carolina

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Description

Plutonium resuspensions, based on air-sample activity, were measured during field preparation and planting of winter wheat at the Savannah River Plant (SRP). Plutonium was originally deposited in the field during the previous twenty years as a result of atmospheric releases from SRP's nuclear fuel processing facility located adjacent to the field, and from global fallout following nuclear weapons tests conducted at other sites. During soil cultivation when the prevailing wind speed ranged from 0 to 6.3 m/sec, airborne plutonium upwind of the field consistently averaged 1.7 femtocurie/m$sup 3$. Airborne plutonium concentrations during the various activities associated with site preparation and planting averaged 210 femtocurie/m$sup 3$ at 7.6 m and 10 femtocurie/m$sup 3$ at 30.5 m downwind from the edge of the field. The air at face level on the tractor contained 49 femtocurie/m$sup 3$. The average concentration of plutonium in the 0 to 5 cm soil layer following cultivation was 3100 femtocurie/g. Dose calculations based on measurements of resuspended plutonium indicated that the 70-year bone-dose commitment to an agricultural worker after one hundred 8-hour days would be 49 mrem, 210 mrem, or 1.8 mrem, depending on whether the worker remained in the tractor seat, 7.6 m downwind of the edge of the field, or 7.6 m upwind of the edge of the field. Resuspension factors for the agricultural activities were 103 x 10$sup -8$ m$sup -1$ at 7.6 m downwind, 5 x 10$sup -8$ m$sup -1$ at 30.5 m downwind from the edge of the field, and 24 x 10$sup -8$ m$sup -1$ at the tractor location. (auth)

Physical Description

17 p.

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  • IAEA international symposium on transuranium nuclides in the environment, San Francisco, California, USA, 17 Nov 1975

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  • Report No.: DP-MS--75-29
  • Report No.: CONF-751105--12
  • Report No.: SM--199/83
  • Grant Number: AT(07-2)-1
  • Office of Scientific & Technical Information Report Number: 4144152
  • Archival Resource Key: ark:/67531/metadc866221

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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, 1975

Added to The UNT Digital Library

  • Sept. 16, 2016, 12:32 a.m.

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  • Oct. 12, 2017, 2:21 p.m.

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Milham, R C; Schubert, J F; Watts, J R; Boni, A L & Corey, J C. Measured plutonium resuspension and resulting dose from agricultural operations on an old field at the Savannah River Plant in the southeastern United States, article, January 1, 1975; Aiken, South Carolina. (digital.library.unt.edu/ark:/67531/metadc866221/: accessed April 26, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.