Health Effects and Risks from 222Rn in Drinking Water
| Autor: | Cross Ft, Hofmann W, Harley Nh |
|---|---|
| Rok vydání: | 1985 |
| Předmět: |
Risk
Water Pollutants Radioactive Lung Neoplasms Neoplasms Radiation-Induced Epidemiology Indoor air Health Toxicology and Mutagenesis Air Pollutants Occupational Radiation Dosage Mining Stomach Neoplasms Water Supply Neoplasms Environmental health Animals Humans Maximum Contaminant Level Water Pollutants Radiology Nuclear Medicine and imaging Cut off value Models Theoretical Occupational Diseases Air Pollutants Radioactive Radon Environmental science Maximum Allowable Concentration Epidemiologic Methods Mathematics |
| Zdroj: | Health Physics. 48:649-670 |
| ISSN: | 0017-9078 |
| DOI: | 10.1097/00004032-198505000-00006 |
| Popis: | This paper presents an evaluation of the inhalation and ingestion doses from exposure to Rn and Rn progeny; an overview of the human and animal health-effects data; estimations of the cancer risks from Rn and Rn-progeny exposures; and suggested limits for Rn concentrations in drinking water and indoor air. We suggest that a rounded Rn-in-water concentration limit of 10,000 pCi/l can be supported by health-effects considerations alone, based on the conservative "tolerance dose" concept and other conservative assumptions regarding lung dose. A practical concentration limit (or action level) of 20,000 pCi/l has been derived by estimations of exposure distributions in the United States and in relation to current U.S. Environmental Protection Agency (EPA) standards for U-tailings-contaminated buildings. Research needed for resolution of the uncertainties in these estimates is suggested. We conclude that before a maximum contaminant level (MCL) for Rn in water can be firmly established, the broader issue of setting the MCL for Rn in indoor air must be addressed. |
| Databáze: | OpenAIRE |
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