Assessment of annual effective dose from 238U and 226Ra due to consumption of foodstuffs by inhabitants of Tehran city, Iran
Authors: Hosseini, T.; Fathivand, A. A.; Abbasisiar, F.; Karimi, M.; Barati, H.
Source: Radiation Protection Dosimetry, Volume 121, Number 3, December 2006 , pp. 330-332(3)
Publisher: Oxford University Press
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 × 10−2 ± 7.20 × 10−3 and 2.15 ± 0.54 Sv, respectively, from wheat samples.
Document Type: Research Article
Publication date: December 2006
- RPD publishes peer-reviewed papers covering all aspects of personal and environmental dosimetry and monitoring for both ionising and non-ionising radiations. This includes biological aspects, physical concepts, biophysical dosimetry, external and internal personal dosimetry and monitoring, environmental and workplace monitoring and accident dosimetry and dosimetry related to the protection of patients.