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RECORD NUMBER: 298 OF 371

OLS Field Name OLS Field Data
Main Title Radon exhalation from uranium mill tailings piles : description and verification of the measurement method /
Author Bernhardt, David E. ; Johns, F. B. ; Kaufmann., R. F.
Other Authors
Author Title of a Work
Johns, Fredrick B.
Kaufmann, Richard F.
CORP Author Office of Radiation Programs, Las Vegas, Nev.
Publisher U.S. Environmental Protection Agency, Office of Radiation Programs ; Available from the National Technical Information Service,
Year Published 1975
Report Number ORP-LV-75-7a; EPA/ORP-LV-75-7a
Stock Number PB-247758
OCLC Number 36647392
Subjects Radon--Isotopes--Measurement. ; Uranium mill tailings.
Additional Subjects Radon isotopes ; Chemical analysis ; Nuclear radiation ; Radioactive contaminants ; Measurement ; Sampling ; Radiation hazards ; Uranium ore deposits ; Tailings ; Radiometry ; Public health ; Environmental impacts ; Half life ; Regression analysis ; Radium isotopes ; Thorium isotopes ; Radon 222 ; Uranium mines
Internet Access
Description Access URL
http://nepis.epa.gov/Exe/ZyPDF.cgi?Dockey=9101QV1P.PDF
https://nepis.epa.gov/Exe/ZyPDF.cgi?Dockey=9101QV1P.PDF
Holdings
Library Call Number Additional Info Location Last
Modified
Checkout
Status
EIAD  EPA 420-ORP/LV-75-7(A) Region 2 Library/New York,NY 11/08/2002 DISPERSAL
EJBD ARCHIVE EPA ORP-LV-75-7a Headquarters Library/Washington,DC 10/18/2017
EJBD  EPA ORP-LV-75-7a c.1 Headquarters Library/Washington,DC 10/18/2017
NTIS  PB-247 758 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 01/01/1988
Collation vii, 31 pages ; 28 cm.
Abstract
Uranium mill tailings piles result in several sources of radiation exposure. These exposures are primarily from concentrations of the uranium progeny thorium-230, radium-226, and radon-222 in the tailings. Radon-222 and its progeny are a source of external gamma and lung exposure. Using the accumulation technique, field measurements of the radon flux from uranium mill tailings were made at three mills and at one experimental plot. The sample collection technique, method of calculating results, and reproducibility of the technique are described. The exhalation data (fCi/sq cm-sec) reveal that reproducibility is within about 10 percent and that the variation is less than the uncertainty associated with the linear regression analysis of the accumulated radon concentration versus time. Long term measurements (greater than about 8 hours) result in accumulated concentrations that approach the radon concentrations in the surface soil gas, and invalidate the assumptions inherent in the accumulation technique.
Notes
"OPR-LV-75-7a." "November 1975." Cover title. Includes bibliographical references.