Methodology issues in risk assessment for radon
The alpha dose per unit radon daughter exposure in mines and homes is comparable at about 5 mGy/WLM. This means that excess lung cancer risk determined in follow-up studies of miners should be valid to extrapolating to environmental populations. There are several models currently used for risk projection to estimate lung cancer in the US from indoor radon exposure. The accuracy of the estimated depends upon the quality of the exposure data and the models. Recent miner epidemiology confirms that excess lung cancer risk decreases with time subsequent to cessation of exposure. The most rigorous ecological study, to date, shows a persistent negative relationship between average measured indoor radon in US counties and lung cancer mortality. A model for lung cancer risk is proposed that includes smoking, urbanization, and radon exposure. The model helps to explain the difficulties in observing the direct effects of indoor radon in the environment.
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- Resource Type:
- Journal Article
- Resource Relation:
- Journal Name: Environmental Health Perspectives; (United States); Journal Volume: 90
- Country of Publication:
- United States
- 63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.; CARCINOGENESIS; RISK ASSESSMENT; LUNGS; RADIATION DOSES; DAUGHTER PRODUCTS; MATHEMATICAL MODELS; NEOPLASMS; RADON 222; ALPHA DECAY RADIOISOTOPES; BODY; DAYS LIVING RADIOISOTOPES; DISEASES; DOSES; EVEN-EVEN NUCLEI; HEAVY NUCLEI; ISOTOPES; NUCLEI; ORGANS; PATHOGENESIS; RADIOISOTOPES; RADON ISOTOPES; RESPIRATORY SYSTEM 560151* -- Radiation Effects on Animals-- Man
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