Investigation of natural radioactivity levels in water around Kadugli, Sudan. |
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| Authors: | Alfatih A A Osman Isam Salih Ibrahim A Shaddad Saif El Din M B Siddeeg Hatem Eltayeb Hajo Idriss Walid Hamza E H Yousif |
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| Affiliation: | Sudan Atomic Energy Commission, P.O. Box 3001, Khartoum, Sudan. |
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| Abstract: | Surface water from Miri Lake and groundwater from around Kadugli (West-Central Sudan) obtained by means of hand-pumps was analysed for (238)U, (226)Ra, (222)Rn, and (232)Th activity concentrations. The surface water showed very low levels of radionuclide concentrations: <1.0-7.5, 8.5-16.5, <1.6, and <0.1-0.39mBqL(-1) for (238)U, (226)Ra, (222)Rn, and (232)Th, respectively. Groundwater revealed a significant amount of natural radioactivity (16.1-1720, 7.7-14.3, 3000-139,000, <0.1-39mBqL(-1)) respectively. The overall annual effective dose was below the WHO reference dose level of 0.1mSvyr(-1) except in one groundwater sample with an associated dose of 0.7mSvyr(-1). |
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