University of Surrey

Test tubes in the lab Research in the ATI Dance Research

Soil radioactivity levels, radiological maps and risk assessment for the state of Kuwait.

Alazemi, N, Bajoga, AD, Bradley, DA, Regan, PH and Shams, H (2016) Soil radioactivity levels, radiological maps and risk assessment for the state of Kuwait. Chemosphere, 154. pp. 55-62.

[img] Text
CHEM_17307 26FEB2016 15MAR2016.pdf - Accepted version Manuscript
Restricted to Repository staff only until 1 July 2017.
Available under License : See the attached licence file.

Download (1MB)
[img]
Preview
Text (licence)
SRI_deposit_agreement.pdf
Available under License : See the attached licence file.

Download (33kB) | Preview

Abstract

An evaluation of the radioactivity levels associated with naturally occurring radioactive materials has been undertaken as part of a systematic study to provide a surface radiological map of the State of Kuwait. Soil samples from across Kuwait were collected, measured and analysed in the current work. These evaluations provided soil activity concentration levels for primordial radionuclides, specifically members of the (238)U and (232)Th decay chains and (40)K which. The (238)U and (232)Th chain radionuclides and (40)K activity concentration values ranged between 5.9 ↔ 32.3, 3.5 ↔ 27.3, and 74 ↔ 698 Bq/kg respectively. The evaluated average specific activity concentrations of (238)U, (232)Th and (40)K across all of the soil samples have mean values of 18, 15 and 385 Bq/kg respectively, all falling below the worldwide mean values of 35, 40 and 400 Bq/kg respectively. The radiological risk factors are associated with a mean of 33.16 ± 2.46 nG/h and 68.5 ± 5.09 Bq/kg for the external dose rate and Radium equivalent respectively. The measured annual dose rates for all samples gives rise to a mean value of 40.8 ± 3.0 μSv/y while the internal and internal hazard indices have been found to be 0.23 ± 0.02 and 0.19 ± 0.01 respectively.

Item Type: Article
Subjects : Physics
Divisions : Faculty of Engineering and Physical Sciences > Physics
Authors :
AuthorsEmailORCID
Alazemi, NUNSPECIFIEDUNSPECIFIED
Bajoga, ADUNSPECIFIEDUNSPECIFIED
Bradley, DAUNSPECIFIEDUNSPECIFIED
Regan, PHUNSPECIFIEDUNSPECIFIED
Shams, HUNSPECIFIEDUNSPECIFIED
Date : 31 March 2016
Identification Number : 10.1016/j.chemosphere.2016.03.057
Copyright Disclaimer : © 2016. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/
Uncontrolled Keywords : Activity concentration, Baseline studies, Dose rates, Hazard indices, NORM, Radium equivalent
Related URLs :
Depositing User : Symplectic Elements
Date Deposited : 06 May 2016 17:53
Last Modified : 06 May 2016 17:53
URI: http://epubs.surrey.ac.uk/id/eprint/810652

Actions (login required)

View Item View Item

Downloads

Downloads per month over past year


Information about this web site

© The University of Surrey, Guildford, Surrey, GU2 7XH, United Kingdom.
+44 (0)1483 300800