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Year : 2017  |  Volume : 40  |  Issue : 1  |  Page : 9-12

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

1 Department of Physics, Sri Vari College of Education, Tiruvannamalai, Tamil Nadu, India
2 Department of Physics, SSN College of Engineering, Kalavakkam, Chennai, Tamil Nadu, India
3 Department of Physics, Government Arts College, Tiruvannamalai, Tamil Nadu, India
4 Department of Chemistry, Government Arts College, Tiruvannamalai, Tamil Nadu, India

Correspondence Address:
R Ravisankar
Department of Physics, Government Arts College, Tiruvannamalai - 606 603, Tamil Nadu
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/rpe.RPE_65_16

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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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