Preliminary radiological assessment of radon exhalation from phosphate gypsum piles and inactive uranium mill tailings piles

Technical Report · Sat Sep 01 04:00:00 EDT 1979

DOI:https://doi.org/10.2172/5345211· OSTI ID:5345211

Horton, T. R.

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.

• Research Organization: Environmental Protection Agency, Montgomery, AL (USA). Eastern Environmental Radiation Facility
• OSTI ID: 5345211
• Report Number(s): EPA-520/5-79-004
• Country of Publication: United States
• Language: English

Related Subjects

500300* -- Environment
Atmospheric-- Radioactive Materials Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
ALKALINE EARTH METAL COMPOUNDS
ALPHA DECAY RADIOISOTOPES
CALCIUM COMPOUNDS
CALCIUM SULFATES
CLEARANCE
COMPARATIVE EVALUATIONS
DAYS LIVING RADIOISOTOPES
DOSE COMMITMENTS
DOSES
EVEN-EVEN NUCLEI
EXCRETION
EXHALATION
GYPSUM
HEAVY NUCLEI
ISOTOPES
MINERALS
NATURAL RADIOACTIVITY
NUCLEI
OXYGEN COMPOUNDS
PHOSPHATE ROCKS
RADIATION DOSES
RADIATION SOURCES
RADIOACTIVITY
RADIOISOTOPES
RADON 222
RADON ISOTOPES
ROCKS
SEDIMENTARY ROCKS
SOLID WASTES
SULFATES
SULFUR COMPOUNDS
TAILINGS
WASTES