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Journal of Applied Sciences
  Year: 2007 | Volume: 7 | Issue: 20 | Page No.: 3091-3095
DOI: 10.3923/jas.2007.3091.3095
 
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Naturally Occurring Radioactivity in the City and Across Near by Cities in Iran

S.A. Hosseini

Abstract:
Naturally Occurring Radioactive Material (NORM) could be contributed in radioactivity pollution of environment. The natural radioactivity concentration in soil, drinking water, certain food items samples of Zahedan city in Iran and absorbed dose across near by 5 Sistan and Blouchestan cities in Iran have been determined using gamma spectrometry and Multi Rad Low Level (MRLL) detector, respectively. Results show that the concentrations of 40K, 238U and 232Th in the samples of the city varied from 396±38.4 to 576±57.4 Bq kg-1 with a mean of 473.3±40.7 Bq kg-1 for 40K, whereas for 238U and 232Th values varied from 20.6±2.3 to 24.7±3.6 Bq kg-1 with a mean of 21.9±2.8 Bq kg-1 and from 28.9±3.3 to 36.5±3.6 Bq kg-1 with a mean of 33±3.7 Bq kg-1, respectively. The absorbed dose rate in the air across Zahedan cities border ranged between 16±5 nGy h-1and 300±44 nGy h-1 and the gross mean was 158.0±24.5 nGy h-1. It can be concluded that no risk threat the residents around and center Zahedan city and in above mentioned border.
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How to cite this article:

S.A. Hosseini , 2007. Naturally Occurring Radioactivity in the City and Across Near by Cities in Iran. Journal of Applied Sciences, 7: 3091-3095.

DOI: 10.3923/jas.2007.3091.3095

URL: https://scialert.net/abstract/?doi=jas.2007.3091.3095

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