Record Display for the EPA National Library Catalog


OLS Field Name OLS Field Data
Main Title A preliminary radiological assessment of radon exhalation from gypsum piles and inactive uranium mill tailings piles /
Author Horton, Thomas A.
CORP Author Eastern Environmental Radiation Facility, Montgomery, AL.
Publisher U.S. Environmental Protection Agency, Office of Radiation Programs,
Year Published 1979
Report Number EPA/520/5-79/004
Stock Number PB85-191534
OCLC Number 48152072
Additional Subjects Radioactive contaminants ; Industrial hygiene ; Gypsum deposits ; Florida ; Exposure ; Assessments ; Sources ; Tables(Data) ; Concentration(Composition) ; Uranium mills ; Mill tailings ; Radon 222 ; Phosphate mining ; Solid wastes
Library Call Number Additional Info Location Last
NTIS  PB85-191534 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 22 pages : tables ; 28 cm
The EPA Office of Radiation Programs has conducted a series of studies to determine the radiological impact of the phosphate mining and milling industry. This report describes the efforts to estimate cumulative working level months (CWLM) from radon-222 daughters produced from radium-226 in phosphate gypsum piles and how these estimates compare with CWLM from inactive uranium mill tailings piles. Two Florida phosphate gypsum piles were selected for radon exhalation rate measurements. Indoor radon concentration, indoor working level, and individual and population CWLM were computed from the exhalation rate and source size for each source category. The calculated results for each source category are tabulated and compared.
Includes bibliographical references. EPA 520/5-79-004. Sept. 1979. Microfiche.