Natural radioactivity in the soil samples in and around Kudankulam nuclear power plant site |
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| Authors: | G. M. Brahmanandhan S. Selvasekarapandian J. Malathi D. Khanna M. P. Rajan A. G. Hegde |
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| Affiliation: | (1) Solid State and Radiation Physics Laboratory, Department of Physics, Bharathiar University, Coimbatore, 641 046, India;(2) Environmental Survey Laboratory, KKNPP, Kudankulam, 627 106, India;(3) ESS, Health Physics Division, Bhabha Atomic Research Center, Mumbai, 400085, India |
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| Abstract: | The terrestrial gamma-radiation in soil and sand samples collected around Kudankulam nuclear power plant site, i.e., in Radhapuram Taluk of Tirunelveli District has been measured using NaI(T1) gamma-ray spectrometer. In the soil samples total dose due to three primordial radionuclides lies in the range of 13.1–168.2 nGy/h with a geometric mean of 137.2 nGy/h, which yields an annual effective dose of 0.17 mSv/y. In the sand samples the total dose due to three primordial radionuclides has been found to be in the range of 38.1–1964.4 nGy/h with a geometric mean of 300.8 nGy/h, which gives an annual effective dose of 0.37 mSv/y which is well below the permissible limit (1 mSv). |
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