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Year : 2018  |  Volume : 41  |  Issue : 4  |  Page : 176-180

Seasonal variation of radionuclides concentration in sand samples collected from Southern coastal areas of Kerala, India

1 Department of Studies and Research in Physics, Payyanur College, Kannur University, Kannur, Kerala, India
2 Department of Physics, BMS College of Engineering, Bengaluru, Karnataka, India

Correspondence Address:
Dr. V Prakash
Department of Studies and Research in Physics, Payyanur College, Kannur - 670 327, Kerala
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/rpe.RPE_68_18

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Southern coastal parts of Kerala are well-reported high background radiation areas. Hence, the radiological protection of the population in this region may have some concern. In the present work, samples were collected during three different seasons, namely premonsoon, monsoon, and postmonsoon. The radionuclide activities obtained for various seasons have been compared in order to understand the enrichment of radionuclides during various seasons. The activities of natural radionuclides, namely 40K, 226Ra, and 232Th in sand samples collected from Southern coastal parts of Kerala were determined using NaI (Tl) gamma-ray spectrometer. Sand samples collected during postmonsoon showed enhanced level of radionuclides concentration. The radiation dose to the population was also estimated from the activities of radionuclides in order to assess the radiation levels. The calculated values of risk assessment parameters were within the safe limits, which indicate the radiation exposure to the population due to these radionuclides is insignificant. However, seasonal variation of radionuclides concentration is significant. The results of the present systematic investigation are presented and discussed here in detail.

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