Abstract |
Small quantities of radon-222 can be found in all ground water from natural sources as a result of decay of radium-226 both in water and the soils and soil matrix surrounding the water. Radon in drinking water has previously been considered a source of radiation exposure primarily from an ingestion standpoint. However, the EPA, Office of Radiation Programs, is investigating the potential for exposure to individuals from inhalation of gaseous radon released from water. This report describes the results of a study to determine the fraction of radon released from water during typical household activities such as clothes washing, dishwashing, showering, etc., and estimates the potential radon concentration in air and resulting working levels in structures. |