GLOBAL JOURNAL OF EARTH AND ENVIRONMENTAL SCIENCE
Integrity Research Journals
ISSN: 2636-6002
Model: Open Access/Peer Reviewed
DOI: 10.31248/GJEES
Start Year: 2016
Email: gjees@integrityresjournals.org
Radiological safety assessment of soil samples at Kankara mining sites, Kankara Local Government Area of Katsina State, using Gamma-ray spectrometry
https://doi.org/10.31248/GJEES2021.112 | Article Number: 4042E2BD2 | Vol.6 (4) - December 2021
Received Date: 17 October 2021 | Accepted Date: 10 November 2021 | Published Date: 30 December 2021
Authors: Namadi Z. A.* , Akpaneno A. F. and Mamman L. I.
Keywords: soil., radioactivity, Katsina State, Gamma index, Kankara
The levels of natural radioactivity of 40K, 226Ra and 232Th were investigated to check the safety limit with the aim of identifying and quantifying prominent Gamma Emitting Norms associated with mining sites. The specific activity concentration, gamma index, alpha index and hazards indices were calculated and compared to the world recommended value using Gamma Spectroscopy with NaI (TI) detector. The Specific activities of 40K varied from 68.93098 to 98.74651 with a mean value of 84.720414; for 232Th, 19,65476 to 48.29756 with a mean value of 35.192296; and for 226Ra, 25.85647 to 41.89947 with a mean value of 34.50852. The mean values obtained for external hazard (Hex), internal hazard (Hin), gamma index and alpha index were 0.245, 0.338, 0.634 and 0.170. Generally, with the exception of 232Th and 226Ra, the activity levels of the radionuclides investigated were low and within the world average value. The calculated hazard indices were lower than international recommended limit. The alpha index was found to be lower with the exception of gamma index.
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