Measurement of natural radioactivity and its health hazards associated with the use of different branded cement samples collected from different manufactures in Dhaka city using gamma spectrometry

Authors

  • Shikha Pervin Health Physics Division, Atomic Energy Centre, Dhaka, Bangladesh Atomic Energy Commission, Bangladesh
  • Md Jafor Dewan Department of Nuclear Engineering, University of Dhaka, Dhaka, Bangladesh
  • Ashif Mahamud Apon Department of Nuclear Engineering, University of Dhaka, Dhaka, Bangladesh
  • MM Mahfuz Siraz Health Physics Division, Atomic Energy Centre, Dhaka, Bangladesh Atomic Energy Commission, Bangladesh
  • Selina Yeasmin Health Physics Division, Atomic Energy Centre, Dhaka, Bangladesh Atomic Energy Commission, Bangladesh

DOI:

https://doi.org/10.3329/jbas.v45i1.54433

Keywords:

Building materials, Gamma ray spectrometry, Activity concentration, Health hazard, High purity germanium detector (HPGe)

Abstract

The radioactivity of naturally occurring radionuclides 226Ra, 232Th, and 40K was determined in thirteen cement samples collected from different manufactures of Dhaka city. The measurement was performed by gammaray spectrometry system using high purity germanium (HPGe) detector. The average activity of 226Ra, 232Th, and 40K in cement samples are fon und to be 30.23±15.04 Bqkg-1, 20.10±11.76 Bqkg-1 and 145.27±24.14 Bqkg-1, respectively. The average values of radium equivalent activity (Raeq), absorbed dose rates (D), internal hazard and external hazard index (Hex), and annual effective dose equivalent are 370 Bqkg-1, 0.27, 0.18, and 27.99 nGyh-1, respectively. The average annual effective dose is found 0.13 mSvy-1, which is less than the recommended value (1 mSvy-1) by the International Commission on Radiological Protection (ICRP-60, 1990), as the maximum permissible annual effective dose to the members of the public. The present study results are discussed and compared with those reported in similar studies and with internationally recommended values. No artificial radioactivity was found in the present study. The results show that the analyzed cement samples do not pose any significant radiation hazard from naturally occurring radionuclides 226Ra, 232Th and 40K reported here and also considered safe for use in buildings construction.

J. Bangladesh Acad. Sci. 45(1); 95-104: June 2021

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Published

2021-07-15

How to Cite

Pervin, S., Dewan, M. J., Apon, A. M., Siraz, M. M., & Yeasmin, S. (2021). Measurement of natural radioactivity and its health hazards associated with the use of different branded cement samples collected from different manufactures in Dhaka city using gamma spectrometry. Journal of Bangladesh Academy of Sciences, 45(1), 95–104. https://doi.org/10.3329/jbas.v45i1.54433

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Section

Research Articles