Radiation Protection and Environment (Jan 2017)

Measurement of natural radioactivity in and around Chennai Coast, East Coast of Tamil Nadu, India, using gamma ray spectrometry

  • M Tholkappian,
  • A Chandrasekaran,
  • N Harikrishnan,
  • Durai Ganesh,
  • G Elango,
  • R Ravisankar

DOI
https://doi.org/10.4103/rpe.RPE_65_16
Journal volume & issue
Vol. 40, no. 1
pp. 9 – 12

Abstract

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The activity concentrations of natural radionuclides in the sediments from Pulicat Lake to Vada Nemmeli of Chennai Coast, Tamil Nadu, have been measured using gamma-ray spectrometry. The average concentration of 238U, 232Th, and 40K are 10.14, 35.02, and 425.82 Bq/kg, respectively, in sediments. Using measured activity concentrations of natural radionuclides, the radium equivalent activity (Raeq) was calculated to assess radiation hazard associated with the sediments. The calculated Raeqvalue of all the locations showed less than the recommended safe limit. The obtained results of the study could serve as an important baseline for radiometric data for future monitoring initiatives in the study area.

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