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Abstract
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Article Information:
Evaluation of Natural Radionuclide Content in River Sediments and Excess Lifetime Cancer Risk Due to Gamma Radioactivity
V. Ramasamy, G.Suresh, V.Meenakshisundaram and V.Gajendran G.Suresh, V.Meenakshisundaram and V.Gajendran
Corresponding Author: V.Ramasamy
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Abstract:
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The objective of this study is to evaluate the radionuclides (U238 , Th232 and K40) content and outdoor
terrestrial gamma dose rates in the Ponnaiyar river sediments to understand the radiation hazards to mankind.
The determined activity concentrations of all sites are fall within the typical world and Indian average values
although some extreme values are determined. To assess the radiological hazard of river sediments, the
radiological hazard indices such as absorbed dose rate, annual effective dose equivalent (outdoor and indoor)
(AEDE), hazard indices (Hex and Hin), activity utilization index (I) and excess life time cancer risk (ELCR) are
calculated. The radiological hazard indices are below the internationally recommended values. The last eight
sampling sites have higher ELCR value.
Key words: activity utilization index, , annual effective dose , radioactivity, radiological hazard indices, ponnaiyar river, ,
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Cite this Reference:
V. Ramasamy, G.Suresh, V.Meenakshisundaram and V.Gajendran G.Suresh, V.Meenakshisundaram and V.Gajendran , . Evaluation of Natural Radionuclide Content in River Sediments and Excess Lifetime Cancer Risk Due to Gamma Radioactivity. Research Journal of Environmental and Earth Sciences, (1): Page No: 6-10.
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ISSN (Online): 2041-0492
ISSN (Print): 2041-0484 |
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