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Radiological Risk Estimation of Drinking and Irrigation Water from Siwa Oasis, Western Desert, Egypt |
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PP: 193-199 |
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doi:10.18576/jrna/040308
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Author(s) |
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Kh. A. Allam,
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Abstract |
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| The objectives of this work was to determine the radiological health risk due to natural radionuclides (e.g., 226Ra, 228Ra and 40K) in drinking and irrigation water resources in Siwa Oasis. The water resources in Siwa Oasis are diverse and include the Nubian sandstone aquifer system (NSSAS), Tertiary carbonate aquifer system (TCAS) as well as springs and lakes. The mean values of annual effective dose obtained for infants, children and adults were 0.86, 0.57 and 0.37 mSvy-1, respectively. The mean life-long cancer risk and the mean hereditary effects due to ingestion of radionuclides by adults show that 14 out of 10,000 may suffer some form of cancer fatality and 52 out of 1000,000 may suffer some hereditary effects. The obtained results indicates a very poor negative or neglected correlation between ground water and soil, which means a very low impact from water to soil in Siwa Oasis. The radiological health risk data obtained were within their safe values. |
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