Radiation dose assessment of soil from Ijero Ekiti, Nigeria

The activity concentration of 238U, 232Th and 40K in the soils of mining and living areas of Ijero Ekiti were determined using hyper pure germanium gamma ray spectrometer. The mean concentrations of 238U, 232Th and 40K were found to be 128.05 Bqkg−1, 24.8 Bqkg−1 and 455.05 Bqkg−1, respectively, for...

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Autores principales:	M. R. Usikalu, P. P. Maleka, N. B. Ndlovu, S. Zongo, J. A. Achuka, T. J. Abodunrin
Formato:	article
Lenguaje:	EN
Publicado:	Taylor & Francis Group 2019
Materias:	mining soil dose assessment excess lifetime cancer risk ijero ekiti Engineering (General). Civil engineering (General) TA1-2040
Acceso en línea:	https://doaj.org/article/70e7d654edb74dba9d18ade4bf7a0495
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spelling	oai:doaj.org-article:70e7d654edb74dba9d18ade4bf7a04952021-11-04T15:51:55ZRadiation dose assessment of soil from Ijero Ekiti, Nigeria2331-191610.1080/23311916.2019.1586271https://doaj.org/article/70e7d654edb74dba9d18ade4bf7a04952019-01-01T00:00:00Zhttp://dx.doi.org/10.1080/23311916.2019.1586271https://doaj.org/toc/2331-1916The activity concentration of 238U, 232Th and 40K in the soils of mining and living areas of Ijero Ekiti were determined using hyper pure germanium gamma ray spectrometer. The mean concentrations of 238U, 232Th and 40K were found to be 128.05 Bqkg−1, 24.8 Bqkg−1 and 455.05 Bqkg−1, respectively, for mining areas, while it was found to be 42.02 Bqkg−1, 43.27 Bqkg−1 and 635.41 Bqkg−1, respectively, for the living areas. The mean absorbed dose rate, annual effective dose equivalent, gamma index and the excess lifetime cancer risk evaluated for the locations were 89.70 nGyh−1, 0.11 mSvy−1 and 1.4 for mining areas; while it was 72.22 nGyh−1, 0.089 mSvy−1 and 1.14 for living areas, respectively. The absorbed dose rate, annual effective dose equivalent and gamma index estimated for the mining site were higher than the living areas. The mean excess lifetime cancer risk estimated for the mining areas was consecutively higher than the recommended limit of 0.29 × 10−3 for background radiation. It is therefore necessary for government to barn illegal mining activities going on in the town so as to reduce natural radiation burden from their operations in the town.M. R. UsikaluP. P. MalekaN. B. NdlovuS. ZongoJ. A. AchukaT. J. AbodunrinTaylor & Francis Grouparticleminingsoildose assessmentexcess lifetime cancer riskijero ekitiEngineering (General). Civil engineering (General)TA1-2040ENCogent Engineering, Vol 6, Iss 1 (2019)
institution	DOAJ
collection	DOAJ
language	EN
topic	mining soil dose assessment excess lifetime cancer risk ijero ekiti Engineering (General). Civil engineering (General) TA1-2040
spellingShingle	mining soil dose assessment excess lifetime cancer risk ijero ekiti Engineering (General). Civil engineering (General) TA1-2040 M. R. Usikalu P. P. Maleka N. B. Ndlovu S. Zongo J. A. Achuka T. J. Abodunrin Radiation dose assessment of soil from Ijero Ekiti, Nigeria
description	The activity concentration of 238U, 232Th and 40K in the soils of mining and living areas of Ijero Ekiti were determined using hyper pure germanium gamma ray spectrometer. The mean concentrations of 238U, 232Th and 40K were found to be 128.05 Bqkg−1, 24.8 Bqkg−1 and 455.05 Bqkg−1, respectively, for mining areas, while it was found to be 42.02 Bqkg−1, 43.27 Bqkg−1 and 635.41 Bqkg−1, respectively, for the living areas. The mean absorbed dose rate, annual effective dose equivalent, gamma index and the excess lifetime cancer risk evaluated for the locations were 89.70 nGyh−1, 0.11 mSvy−1 and 1.4 for mining areas; while it was 72.22 nGyh−1, 0.089 mSvy−1 and 1.14 for living areas, respectively. The absorbed dose rate, annual effective dose equivalent and gamma index estimated for the mining site were higher than the living areas. The mean excess lifetime cancer risk estimated for the mining areas was consecutively higher than the recommended limit of 0.29 × 10−3 for background radiation. It is therefore necessary for government to barn illegal mining activities going on in the town so as to reduce natural radiation burden from their operations in the town.
format	article
author	M. R. Usikalu P. P. Maleka N. B. Ndlovu S. Zongo J. A. Achuka T. J. Abodunrin
author_facet	M. R. Usikalu P. P. Maleka N. B. Ndlovu S. Zongo J. A. Achuka T. J. Abodunrin
author_sort	M. R. Usikalu
title	Radiation dose assessment of soil from Ijero Ekiti, Nigeria
title_short	Radiation dose assessment of soil from Ijero Ekiti, Nigeria
title_full	Radiation dose assessment of soil from Ijero Ekiti, Nigeria
title_fullStr	Radiation dose assessment of soil from Ijero Ekiti, Nigeria
title_full_unstemmed	Radiation dose assessment of soil from Ijero Ekiti, Nigeria
title_sort	radiation dose assessment of soil from ijero ekiti, nigeria
publisher	Taylor & Francis Group
publishDate	2019
url	https://doaj.org/article/70e7d654edb74dba9d18ade4bf7a0495
work_keys_str_mv	AT mrusikalu radiationdoseassessmentofsoilfromijeroekitinigeria AT ppmaleka radiationdoseassessmentofsoilfromijeroekitinigeria AT nbndlovu radiationdoseassessmentofsoilfromijeroekitinigeria AT szongo radiationdoseassessmentofsoilfromijeroekitinigeria AT jaachuka radiationdoseassessmentofsoilfromijeroekitinigeria AT tjabodunrin radiationdoseassessmentofsoilfromijeroekitinigeria
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Radiation dose assessment of soil from Ijero Ekiti, Nigeria

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