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Evaluation of Natural Radioactivity and Associated Radiological Hazards in Soil Samples from Sand Quarries in Basra Governorate, Iraq
Current Issue
Volume 2, 2015
Issue 5 (October)
Pages: 99-108   |   Vol. 2, No. 5, October 2015   |   Follow on         
Paper in PDF Downloads: 43   Since Sep. 23, 2015 Views: 2040   Since Sep. 23, 2015
Authors
[1]
Ali Farhan Nadir, Department of Physics, College of Education for Pure Science University of Basrah, Basrah, Iraq.
[2]
Noori H. N. Al-Hashimi, Department of Physics, College of Education for Pure Science University of Basrah, Basrah, Iraq.
[3]
Abdul Ridha H. Subber, Department of Physics, College of Education for Pure Science University of Basrah, Basrah, Iraq.
Abstract
Gamma ray spectra of natural radioactivity from 238U and 232Th series and from 40K are important to assess the potential hazard of radiation exposure. Activity concentrations of natural radionuclides in soil collected from sand quarries, were measured using a gamma ray spectrometer NaI(Tl). Specific activity concentrations of 226Ra, 232Th and 40K in the studied soil samples raged from 0.86 Bq/kg to 17.8 Bq/kg, 0.4 Bq/kg to 18.5 Bq/kg and 102.3 Bq/kg to 855.6 Bq/kg respectively. The radium equivalent activity, hazard indices and the annual effective dose rate were calculated and compared with the internationally accepted limits. The annual effective dose rate in the quarries was found to be less than the upper recommended limit by international committees.
Keywords
Soil, Quarries, Gamma Spectroscopy, Radium Equivalent, Hazard Indices
Reference
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