Analysis of 222Rn concentration in North Carolina household water supplies derived from private wells
- Univ. of North Carolina, Chapel Hill (United States)
The objectives of this study were to characterize the concentrations of 222Rn in North Carolina household groundwater supplies and to investigate the relationship between indoor air and groundwater 222Rn concentrations. Measurements of 222Rn in groundwater supplies were performed in 400 North Carolina homes in which a state/Environmental Protection Agency survey had made measurements of indoor airborne 222Rn. The arithmetic mean 222Rn concentration measured in groundwater supplies statewide was 67 Bq L-1 (1,800 pCi L-1), and the geometric mean was 24 Bq L-1 (660 pCi L-1). Sixty-seven percent of the state's homes with wells had 222Rn water concentrations in excess of the Environmental Protection Agency's proposed limit for public drinking water supplies of 11 Bq L-1 (300 pCi L-1). The percentage of homes with water concentrations in excess of the proposed limit was 30% in the eastern region of the state, 75% in the central region, and 83% in the western region. No significant correlation was observed between measurements of indoor air and water 222Rn concentrations in these homes.
- OSTI ID:
- 6284265
- Journal Information:
- Health Physics; (United States), Journal Name: Health Physics; (United States) Vol. 65:2; ISSN HLTPAO; ISSN 0017-9078
- Country of Publication:
- United States
- Language:
- English
Similar Records
Areas of the United States with elevated screening levels of 222Rn
A study of radon-222 concentrations in North Carolina groundwater
Related Subjects
540230* -- Environment
Terrestrial-- Radioactive Materials Monitoring & Transport-- (1990-)
AIR POLLUTION
ALPHA DECAY RADIOISOTOPES
BUILDINGS
CONTAMINATION
DAYS LIVING RADIOISOTOPES
DEVELOPED COUNTRIES
DRINKING WATER
ECOLOGICAL CONCENTRATION
EVEN-EVEN NUCLEI
GROUND WATER
HEAVY NUCLEI
HOUSES
HYDROGEN COMPOUNDS
INDOOR AIR POLLUTION
ISOTOPES
NORTH AMERICA
NORTH CAROLINA
NUCLEI
OXYGEN COMPOUNDS
POLLUTION
RADIOECOLOGICAL CONCENTRATION
RADIOISOTOPES
RADON 222
RADON ISOTOPES
RESIDENTIAL BUILDINGS
USA
WATER
WATER POLLUTION
WATER WELLS
WELLS