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Radiation Protection Dosimetry Advance Access originally published online on March 17, 2006
Radiation Protection Dosimetry 2006 121(3):330-332; doi:10.1093/rpd/ncl030
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© The Author 2006. Published by Oxford University Press. All rights reserved. For Permissions, please email: journals.permissions@oxfordjournals.org

TECHNICAL NOTES

Assessment of annual effective dose from 238U and 226Ra due to consumption of foodstuffs by inhabitants of Tehran city, Iran

T. Hosseini*, A. A. Fathivand, F. Abbasisiar, M. Karimi and H. Barati

Iranian Nuclear Regulatory Authority (INRA), National Radiation Protection Department (NRPD), Environmental Section, End of Kargar Street, P.O. Box 14155-4494, Tehran, Iran

* Corresponding author: thosseini{at}aeoi.org.ir and Hosseini_tahereh{at}yahoo.com

Received July 17, 2005, amended February 7, 2006, accepted February 13, 2006


  Abstract

The concentrations of 238U and 226Ra were determined in different foodstuffs purchased from markets in Tehran. Determinations of the radionuclides have been carried out using alpha spectrometry technique, on samples of egg, lentil, potato, rice, soya, spinach, tea and wheat. Average concentrations of natural radionuclides and foodstuff consumption rate were used to assess annual intake and based on intake values, the annual effective ingestion dose has been estimated for Tehran city residents. The measurement results show that soya has the maximum concentration of 238U equal to 15.6 ± 2.6 mBq kg–1 and tea has the maximum concentration of 226Ra equal to 1153.3 ± 265.3 mBq kg–1. Besides, the maximum annual effective dose from 238U and 226Ra were assessed to be 2.88 x 10–2 ± 7.20 x 10–3 and 2.15 ± 0.54 µSv, respectively, from wheat samples.


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