Journal of Radiation Protection and Research

The Korean Association for Radiation Protection (대한방사선방어학회)
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Cancer Risk Assessment Due to Natural and Fallout Activity in Some Cities of Pakistan

  • Ahad A. (Govt. S.E. College, Bahawalpur) ;
  • Matiullah Matiullah (Pakistan Institute of Engineering and Applied Sciences) ;
  • Bhatti Ijaz A. (Department of Chemistry, University of Agriculture) ;
  • Orfi S.D. (PINSTECH)
  • Published : 2006.03.31

Abstract

The measured mean activities of $^{226}Ra,\;^{232}Th,\;^{40}K\;and\;^{137}Cs$ in the soil of Bahawalpur, Bahawalnagar and Rahimyar Khan Bistricts were 32.9, 53.6, 647.4 and 1.8 Bq $kg^{-1}$. The average absorbed dose rate calculated from these activities was 74.3 nGy $h^{-1}$ and the mean annual effective dose rate was found to be 0.46 mSv $y^{-1}$. Absorbed doses to different body organs were derived from annual effective doses using tissue weighting factors. Radiation induced fatal cancer risks were assessed by using ICRP 60 Model. Estimations incurred 184deaths per year due to cancer.

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