Study of 222Rn concentrations in drinking water in the north-eastern hydroregions of Poland |
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Authors: | Zalewski M Karpiñska M Mnich Z Kapała J Zalewski P |
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Affiliation: | Medical School, Department of Biophysics, Bialystok, Mickiewicza 2a st., Pl.-15-230 Bialystok, Poland. |
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Abstract: | This paper presents the results of radon concentration measurements in the drinking water from the municipal water supply system and private wells located in the north-eastern part of Poland. The measurements were carried out on 643 samples using a liquid scintillation method. The mean value was found to be 5262 Bq m-3 with a maximum of 38347 Bq m-3. The samples were obtained from different water-bearing levels, i.e. surface water, deep borehole water and well water and have respective mean values of 3398, 5178 and 6155 Bq m-3. In 57 water samples, a guideline maximum level of 11,000 Bq m-3 was found to be exceeded. The observed radon concentration in water can contribute to a 2% increase in indoor radon concentration. |
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