Concentrations of sup 222 Rn in Well and Tap Waters of North-Eastern Attiki

摘要

An alpha-scintillation system for determination of low sup 222 Rn concentrations in water is described. The use of vacuum sampling, the avoidance of sample transfer and the corrections applied result in low systematical errors. The method has been used for a preliminary investigation of sup 222 Rn concentrations in well waters of North-Eastern Attiki, where values between 4 and 345 pCi have been observed. The additional annual effective dose equivalent due to the systematic domestic use of water with the highest radon concentration measured is estimated not to exceed 5 mrem. (ERA citation 12:009989)