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Please use this identifier to cite or link to this item: http://hdl.handle.net/123456789/12445

Title: Assessment of the activity of radionuclides and radiological impacts of consuming underground water in Kumasi, Ghana
Authors: Darko, Godfred
Faanu, Augustine
Akoto, Osei
Atta-Agyeman, Francis
Aikins, Mary Ann
et. al
Keywords: Gross alpha
Gross b
Issue Date: 19-Jun-2014
Publisher: Springer Berlin Heidelberg
Citation: Springer Berlin Heidelberg., Environ Earth Sci DOI 10.1007/s12665-014-3433-0
Abstract: The gross a–b activities of 226Ra, 232Th and 40K in underground water samples were determined and c spectroscopy measurements made as well. The gross a–b concentrations were measured using a low background gasless automatic a–b counting system calibrated with 241Am and 90Sr standards for a and b, respectively, while c analyses were carried out using c spectrometry system coupled to a NaI (TI) detector and measuring assembly. Gross a activities in the water samples varied from 15.7 to 142.7 mBq/L, registering an average value of 40.7 ± 12 mBq/L, whereas gross b activities ranged from 89.3 to 400 mBq/L. The activities of 226Ra, 232Th and 40K were 22.41 ± 6.07, 114.62 ± 13.01 and 227.38 ± 12.16 mBq/L, respectively. The mean annual effective dose due to water consumption was determined to be 7.00 ± 0.86 lSv/year per inhabitant. The gross a–b levels, the activities obtained for the three radionuclides and the annual effective dose were all within the WHO safe limits. This study indicates that underground water in the areas sampled is radiologically safe for consumption.
Description: An article published by Springer Berlin Heidelberg and also available at DOI 10.1007/s12665-014-3433-0
URI: http://hdl.handle.net/123456789/12445
Appears in Collections:College of Science

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