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Radiation Protection Dosimetry Advance Access originally published online on February 5, 2008
Radiation Protection Dosimetry 2008 130(2):228-235; doi:10.1093/rpd/ncm502
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© The Author 2008. Published by Oxford University Press. All rights reserved. For Permissions, please email: journals.permissions@oxfordjournals.org

Radiological assessment of Abu-Tartur phosphate, Western Desert Egypt

M. A. M. Uosif* and A. El-Taher

Department of Physics, Faculty of Science, Al-Azhar University, Assuit Branch, Egypt

* Corresponding author: Dr_Mohamed_Amin{at}Lycos.com

Received September 15, 2007, amended December 16, 2007, accepted December 26, 2007

The contents of natural radionuclides (226Ra, 232Th and 40K) were measured in sedimentary phosphate rock samples (Abu-Tartur phosphate, Western Desert Egypt) by using gamma spectrometry (NaI (Tl) 3"x 3"). Phosphate and environmental samples were collected from Abu-Tartur phosphate mine and the surrounding region. The results are discussed and compared with the levels in phosphate rocks from different countries. The activities of 226Ra, 232Th series and 40K are between (14.9 ± 0.8 and 302.4 ± 15.2), (2.6 ± 1.0 and 154.9 ± 7.8) and (10.0 ± 0.5 and 368.4 ± 18.4) Bq kg–1, respectively. The Abu-Tartur phosphate deposit was found to have lower activity than many others exploited phosphate sedimentary deposits, with its average total annual dose being only 114.6 µSv y–1. This value is about 11.46% of the 1.0 mSv y–1 recommended by the International Commission on Radiological Protection (ICRP-60, 1990) as the maximum annual dose to members of the public.


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