Age-dependent lung doses from ingested /sup 222/Rn in drinking water
Journal Article
·
· Health Phys.; (United States)
The U.S. Environmental Protection Agency currently is considering regulatory standards limiting the concentration of /sup 222/Rn in public drinking water supplies. As part of this effort, a criteria document has been prepared detailing the health risks expected to occur from the presence of /sup 222/Rn in water used in homes. The present report examines the dose equivalent delivered to lung tissue following direct ingestion of /sup 222/Rn in water. Irradiation from both in-situ decay of /sup 222/Rn in lung tissue and the decay of /sup 222/Rn in lung air passages following exhalation are examined and results presented for ages from neonate through adult. These results indicate that the risk of lung cancer from inhalation of airborne progeny following emanation of /sup 222/Rn from water into home air is significantly greater than the risk from both irradiation pathways considered in ingestion at all ages.
- Research Organization:
- Univ. of North Carolina, Chapel Hill
- OSTI ID:
- 6571383
- Journal Information:
- Health Phys.; (United States), Journal Name: Health Phys.; (United States) Vol. 2; ISSN HLTPA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
560161* -- Radionuclide Effects
Kinetics
& Toxicology-- Man
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
ALPHA DECAY RADIOISOTOPES
BODY
CONTAMINATION
DAYS LIVING RADIOISOTOPES
DOSES
DRINKING WATER
EVEN-EVEN NUCLEI
HAZARDS
HEALTH HAZARDS
HEAVY NUCLEI
HYDROGEN COMPOUNDS
INGESTION
INTAKE
ISOTOPES
LUNGS
NATIONAL ORGANIZATIONS
NUCLEI
ORGANS
OXYGEN COMPOUNDS
POLLUTION
RADIATION DOSES
RADIATION HAZARDS
RADIOISOTOPES
RADIONUCLIDE KINETICS
RADON 222
RADON ISOTOPES
RESPIRATORY SYSTEM
RISK ASSESSMENT
STANDARDS
US EPA
US ORGANIZATIONS
WATER
WATER POLLUTION
WATER SUPPLY
Kinetics
& Toxicology-- Man
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
ALPHA DECAY RADIOISOTOPES
BODY
CONTAMINATION
DAYS LIVING RADIOISOTOPES
DOSES
DRINKING WATER
EVEN-EVEN NUCLEI
HAZARDS
HEALTH HAZARDS
HEAVY NUCLEI
HYDROGEN COMPOUNDS
INGESTION
INTAKE
ISOTOPES
LUNGS
NATIONAL ORGANIZATIONS
NUCLEI
ORGANS
OXYGEN COMPOUNDS
POLLUTION
RADIATION DOSES
RADIATION HAZARDS
RADIOISOTOPES
RADIONUCLIDE KINETICS
RADON 222
RADON ISOTOPES
RESPIRATORY SYSTEM
RISK ASSESSMENT
STANDARDS
US EPA
US ORGANIZATIONS
WATER
WATER POLLUTION
WATER SUPPLY