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Radiation Protection Dosimetry Advance Access published online on February 29, 2008
Radiation Protection Dosimetry, doi:10.1093/rpd/ncn001
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© The Author 2008. Published by Oxford University Press. All rights reserved. For Permissions, please email: journals.permissions@oxfordjournals.org

U-SERIES CONCENTRATION IN SURFACE AND GROUND WATER RESOURCES OF ARDABIL PROVINCE

Kamal Hadad1,* and Reza Doulatdar2

1 Department of Nuclear Engineering, Shiraz University, Shiraz 7134851154, Iran
2 Shiraz University Nuclear Safety Research Center (SUNS-RC), Shiraz 7134851154, Iran

* Corresponding author: hadadk{at}shirazu.ac.i.r

Received April 15, 2007, amended December 16, 2007, accepted December 29, 2007

Hundred and sixteen water resources including springs, wells, rivers and lakes in Ardabil province, northwest of Iran, were sampled and analyzed. The analysis included chemical analyses, 222Rn and 226Ra levels as well as total Uranium contents. 222Rn levels were determined only for hot springs. The concentrations of Radium and Uranium in all water resources of Ardabil province were determined by the collector chamber and fluorimetric methods, respectively. The Radium and Uranium concentrations ranged from 2.0 to 300 mBq L–1 and from 1.4 to 280 ppb, respectively. Furthermore, the annual effective dose varied between 8 and 47 µS y–1. The reason for variations of Radium and Uranium concentration is the diverse geological structures in Ardabil province. The aim of this study was to determine the level of natural radioactivity in all water resources of the Ardabil province and whether this radiation causes any danger to health. The hot springs were found to have high level of activities and some water resources in Meshkin-Shahr city had the highest activities among other cities in Ardabil province.


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