Volume 5, Issue 4, December 2019, Page: 41-46
Evaluation of Radioactivity Level and Its Radiological Impact in Soil Samples Around Transmission Company of Nigeria
Abiodun Odunlami Adegunwa, Department of Pure and Applied Chemistry, Osun State University, Osogbo, Nigeria
Odunayo Timothy Ore, Department of Chemistry, Obafemi Awolowo University, Ile-Ife, Nigeria
Tobi Ezekiel Osadare, Department of Pure and Applied Chemistry, Osun State University, Osogbo, Nigeria
Victoria Olamide Ogunlowo, Department of Pure and Applied Chemistry, Osun State University, Osogbo, Nigeria
Received: Oct. 7, 2019;       Accepted: Oct. 29, 2019;       Published: Nov. 5, 2019
DOI: 10.11648/j.rst.20190504.12      View  16      Downloads  3
Abstract
The aim of this study is to estimate the activity concentrations and radiological assessment of soils around high-tension cables, Transmission company of Nigeria, Osogbo, Nigeria. Surface and control soils were obtained around the high-tension cables and from areas far away from the sampling points, respectively. Their radioactivity levels were determined using gamma ray spectrometer. The results showed that the mean activity of the identified radionuclides, 40K, 238U and 232Th are 223.59±11.98, 15.39±1.95 and 4.54±0.28 Bq/kg respectively, in the studied soils while the control soils exhibited activity concentrations of 40K, 238U and 232Th, as 6.22±0.34, 11.58±1.55 and 0.50±0.03 Bq/kg respectively. The radiological indices, ADR (absorbed dose rate), AED (annual effective dose equivalent), Hin (internal hazard index), Hex (external hazard index), AGDE (annual gonadal dose equivalent), Iγr (representative gamma index) and Raeq (radium equivalent) have values of 19.65 nGy/hr, 0.17 mSv/yr, 0.14 Bq/kg, 0.10 Bq/kg, 140.77 µsvy-1, 0.30 and 39.64 respectively. These results revealed that the studied soils exhibited low gamma radiation. Long-term exposure to these radionuclides could pose health threats and is therefore discouraged.
Keywords
Activity Concentration, Gamma Ray Spectrometer, High-tension Cable, Powerline, Radiation, Transmission Company
To cite this article
Abiodun Odunlami Adegunwa, Odunayo Timothy Ore, Tobi Ezekiel Osadare, Victoria Olamide Ogunlowo, Evaluation of Radioactivity Level and Its Radiological Impact in Soil Samples Around Transmission Company of Nigeria, Radiation Science and Technology. Vol. 5, No. 4, 2019, pp. 41-46. doi: 10.11648/j.rst.20190504.12
Copyright
Copyright © 2019 Authors retain the copyright of this article.
This article is an open access article distributed under the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/) which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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