Measurements of radon concentrations in groundwaters from Swaziland using CR-39 nuclear track detectors

Several studies have shown that water-borne 222Rn contributes to indoor air concentrations. A passive radon measurement method was employed to determine radon activity concentrations in groundwater in wells of Swaziland. Concentrations ranged between 1.8 ± 0.1 and 152.9 ± 4.8 Bq L −1, with only slig...

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Published in:Applied radiation and isotopes 1996, Vol.47 (3), p.383-385
Main Author: Farid, S.M.
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Language:English
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description Several studies have shown that water-borne 222Rn contributes to indoor air concentrations. A passive radon measurement method was employed to determine radon activity concentrations in groundwater in wells of Swaziland. Concentrations ranged between 1.8 ± 0.1 and 152.9 ± 4.8 Bq L −1, with only slight variations (maximum 2.4σ from the mean) over 1 yr in a typical well. The arithmetic mean 222Rn concentration measured in groundwater supplies was 25.2 Bq L −1; geometric mean 13.5 Bq L −1. Fifty-four percent of the wells had 222Rn water concentrations in excess of the U.S. Environmental Protection Agency's proposed limit of 11 Bq L −1 (300 pCi L −1) for public drinking water supplies.
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title Measurements of radon concentrations in groundwaters from Swaziland using CR-39 nuclear track detectors
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