Estimation of natural radioactivity and assessment of radiation hazard indices in soil samples of Uttara Kannada district, Karnataka, India.

Authors :: Suresh, S.
Rangaswamy, D. R.
Sannappa, J.
Dongre, Sandeep
Srinivasa, E.
Rajesh, S.
Source :: Journal of Radioanalytical & Nuclear Chemistry; Apr2022, Vol. 331 Issue 4, p1869-1879, 11p, 4 Charts, 6 Graphs, 1 Map
Publication Year :: 2022
Abstract: The prime objective of this study is to estimate the natural radioactivity and their associated radiological hazards in soil samples of Uttara Kannada district having different geological conditions. The <superscript>226</superscript>Ra, <superscript>232</superscript>Th and <superscript>40</superscript>K activities were estimated using HPGe detector based gamma ray spectrometer. The average <superscript>226</superscript>Ra, <superscript>232</superscript>Th and <superscript>40</superscript>K activity concentrations are 36.13 ± 0.96, 48.47 ± 1.26 and 415.76 ± 6.83 Bq kg<superscript>−1</superscript> respectively. The mean annual effective dose equivalent value was found to be 0.40 mSv y<superscript>−1</superscript> and is less than the ICRP proposed value of 1 mSv y<superscript>−1</superscript>. The radiological hazard indices were computed and compared with internationally agreed values. [ABSTRACT FROM AUTHOR]

Subjects :: NATURAL radioactivity
SOIL sampling
GAMMA ray spectrometer
GAMMA ray detectors
GERMANIUM radiation detectors

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