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Activity concentration and dose estimation of 226Ra, 232Th, 40K and 137Cs in drinking water of selected areas of Punjab, Pakistan.
- Source :
- Water Supply; 2016, Vol. 16 Issue 1, p253-262, 10p
- Publication Year :
- 2016
-
Abstract
- Radioactivity of naturally occurring (<superscript>226</superscript>Ra, <superscript>232</superscript>Th and <superscript>40</superscript>K) and anthropogenic (<superscript>137</superscript>Cs) radioactive nuclides was measured in 29 potable ground and surface water samples of Punjab, Pakistan. The results showed average activity concentrations for <superscript>226</superscript>Ra, <superscript>232</superscript>Th, <superscript>40</superscript>K and <superscript>137</superscript>Cs as 1.09, 0.55, 16.17 and 0.40 Bql<superscript>-1</superscript>, respectively. <superscript>137</superscript>Cs was detected in only a few samples. The obtained results showed that, in general, activity concentrations of radionuclides (<superscript>232</superscript>Th and <superscript>137</superscript>Cs) in drinking water samples did not exceed WHO recommendations. <superscript>226</superscript>Ra in the majority of samples exceeded WHO drinking water guidelines. The estimated committed effective dose due to intake of the water for three age-groups considered (<1 y, 2-7 y and -17 y) was below the ICRP permissible limit (0.1 mSvy<superscript>-1</superscript>) except for <superscript>226</superscript>Ra and <superscript>40</superscript>K. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 16069749
- Volume :
- 16
- Issue :
- 1
- Database :
- Complementary Index
- Journal :
- Water Supply
- Publication Type :
- Periodical
- Accession number :
- 112950939
- Full Text :
- https://doi.org/10.2166/ws.2015.135