Preliminary radiological assessment of radon exhalation from phosphate gypsum piles and inactive uranium mill tailings piles
Description
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
Availability note (English)
MF available from INIS under the Report Number; Eastern Environmental Radiation Facility, Montgomery, AL.
Files
Restricted
The record is publicly accessible, but files are restricted to users with access.
Additional details
Publishing Information
- Imprint Pagination
- 19 p.
- Report number
- EPA--520/5-79-004
INIS
- Country of Publication
- United States
- Country of Input or Organization
- United States
- INIS RN
- 11569831
- Subject category
- S58: GEOSCIENCES;
- Descriptors DEI
- COMPARATIVE EVALUATIONS; DOSE COMMITMENTS; EXHALATION; GYPSUM; NATURAL RADIOACTIVITY; PHOSPHATE ROCKS; RADIATION DOSES; RADIATION SOURCES; RADON 222; SOLID WASTES
- Descriptors DEC
- ALKALINE EARTH METAL COMPOUNDS; ALPHA DECAY RADIOISOTOPES; CALCIUM COMPOUNDS; CALCIUM SULFATES; CLEARANCE; DAYS LIVING RADIOISOTOPES; EVEN-EVEN NUCLEI; EXCRETION; HEAVY NUCLEI; ISOTOPES; MINERALS; NUCLEI; OXYGEN COMPOUNDS; RADIOACTIVITY; RADIOISOTOPES; RADON ISOTOPES; ROCKS; SEDIMENTARY ROCKS; SULFATES; SULFUR COMPOUNDS; WASTES