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Occupational exposures during the u-exploration activities at Seila Area, South Eastern Desert, Egypt
Joint Authors
al-Najdi, Muhammad al-Sayyid
Abd al-Razzaq, Y. A.
Masudah, M. S.
Hanfi, M. Y.
Source
Arab Journal of Nuclear Sciences and Applications
Issue
Vol. 50, Issue 2 (30 Apr. 2017), pp.22-29, 8 p.
Publisher
The Egyptian Society of Nuclear Science and Applications
Publication Date
2017-04-30
Country of Publication
Egypt
No. of Pages
8
Main Subjects
Abstract EN
Twenty trenches distributed over a shear zone at Seila area, South Eastern Desert of Egypt were chosen to study the occupational exposures during the U-exploration activities in these trenches.
The average value of the activity concentration of 238U, 232Th and 40K in the studied granites are 866, 57 and 1380 Bq.kg-1 respectively.
These values are higher than the worldwide average of 33, 45 and 412 Bq/kg.
According to these activity concentrations, trenches are divided into the non-regulated and regulated categories.
The average value of the annual effective dose due to the terrestrial radionuclides is 0.306 mSv for the non-regulated trenches and 0.958 mSv for the regulated trenches corresponding to the absorbed dose rate 219 nGy.h-1 for the non-regulated trenches and 684 nGy.h-1 for the regulated trenches.
The average measured annual effective dose for non-regulated and regulated trenches is 0.81 and 1.42 mSv respectively.
This difference is ascribed to the geometry of the studied trenches.
However, the total annual effective dose in the non-regulated and the regulated trenches is lower than the recommended value of 20 mSv.
American Psychological Association (APA)
Abd al-Razzaq, Y. A.& Masudah, M. S.& Hanfi, M. Y.& al-Najdi, Muhammad al-Sayyid. 2017. Occupational exposures during the u-exploration activities at Seila Area, South Eastern Desert, Egypt. Arab Journal of Nuclear Sciences and Applications،Vol. 50, no. 2, pp.22-29.
https://search.emarefa.net/detail/BIM-777302
Modern Language Association (MLA)
Abd al-Razzaq, Y. A.…[et al.]. Occupational exposures during the u-exploration activities at Seila Area, South Eastern Desert, Egypt. Arab Journal of Nuclear Sciences and Applications Vol. 50, no. 2 (Apr. 2017), pp.22-29.
https://search.emarefa.net/detail/BIM-777302
American Medical Association (AMA)
Abd al-Razzaq, Y. A.& Masudah, M. S.& Hanfi, M. Y.& al-Najdi, Muhammad al-Sayyid. Occupational exposures during the u-exploration activities at Seila Area, South Eastern Desert, Egypt. Arab Journal of Nuclear Sciences and Applications. 2017. Vol. 50, no. 2, pp.22-29.
https://search.emarefa.net/detail/BIM-777302
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references : p. 28-29
Record ID
BIM-777302