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Year : 2011  |  Volume : 34  |  Issue : 1  |  Page : 55-59

Natural radioactivity levels in some environmental samples of Shahpur Region of North Karnataka, India

1 Department of Physics, Gulbarga University, Gulbaga, India
2 Radiation Safety Systems Division, BARC, Mumbai, India
3 Vice-Chancellor, Babasaheb Bhimrao Ambedkar University, Lucknow, India

Correspondence Address:
B R Kerur
Department of Physics, Gulbarga University, Gulbaga
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Source of Support: None, Conflict of Interest: None

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The natural radioactivity due to Radium, Thorium and Potassium in environmental samples such as soil and building materials contributes to the radiation dose received by human beings significantly. For assessing the environmental radiological impact to public it is essential to evaluate the activity levels of these nuclides. Using high-resolution Gamma ray spectrometry system the soil and few building material samples viz., granite, sand, brick collected from Shahpur region of North Karnataka were analysed and the radioactivity levels were estimated. The absorbed dose rate due to natural radionuclides was also calculated and the results are reported in this paper. The results obtained were observed to be normal in comparison with the World literature values for almost all samples whereas granite samples showed relatively higher activity and hence higher dose. This study provides a baseline data of radioactivity background levels in the Shahpur region of Gulbarga district and will be useful to assess any changes in the radioactive background level due to various man made processes.

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