Distribution of radionuclides and assessment of risk exposure to the miners on a kaolin field

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dc.contributor.authorAdagunodo, T. A.
dc.contributor.authorHammed, O. S.
dc.contributor.authorOyebanjo, O. A.
dc.contributor.authorObafemi, Y. D.
dc.contributor.authorOmeje, Maxwell
dc.contributor.authorIsibor, Patrick O.
dc.contributor.authorLukman, A. F.
dc.contributor.authorOladejo, Olagoke P.
dc.contributor.authorOnumejor, C. A.
dc.contributor.authorEsse, Ugwunwa C.
dc.date.accessioned2020-07-22T08:51:23Z
dc.date.available2020-07-22T08:51:23Z
dc.date.issued2019-08
dc.description.abstractMining of kaolin deposits are common in Nigeria without considering the background radiation in such environment and the health risks it might pose on the miners. In this study, in-situ measurements of the naturally occurring radionuclides were carried out with the aim of determining the distribution of these radionuclides on the mining field and estimation of the hazard indices exposure risks (γ- and α-radiation risks) to the miners. The study was achieved with the aid of gamma ray detector Super-Spec (RS-125) and global positioning system. The detector used has ability to measure activity concentrations of 238U, 232Th and 40K and gamma doses. For the purpose of this study, only the concentrations of the three radionuclides were considered. For each location, measurements were taken four times, while its mean value was estimated for better accuracy. In all, nineteen locations were occupied in order to cover the study area. Basic kriging method was adopted for the production of spatial distribution of these radionuclides and their corresponding γ- and α-radiation hazard indices. The mean values of 238U, 232Th and 40K are 46.7, 71.8 and 108.7 Bq kg-1 , respectively. When compared to the global standard, it was revealed that 238U and 232Th are greater than the global standard, while 40K fall below the permissible limit. The γ- and α-radiation exposure risks estimated revealed that the mean values of Iγ and Iα are 0.6 and 0.2 respectively. Though the estimated γ- and α-radiation indices showed that the kaolin field is safe for the miners, periodic check is required in order to monitor the rate at which these natural primordial radionuclides (238U and 232Th and their progenies) are being enhanced.en_US
dc.identifier.citationAdagunodo, T. A. and Hammed, O.S. and Oyebanjo, O. A. and Obafemi , Y.D and Omeje, Maxwell and Isibor, Patrick Omoregie and Lukman, A.F. and Oladejo, Olagoke Peter and Onumejor, C. A. and Esse, Ugwunwa C. (2019) Distribution of radionuclides and assessment of risk exposure to the miners on a kaolin field. In: International Conference on Science and Sustainable Development.en_US
dc.identifier.uri10.1088/1742-6596/1299/1/012082
dc.identifier.urihttp://repository.elizadeuniversity.edu.ng/handle/20.500.12398/761
dc.language.isoenen_US
dc.publisherIOP Publishingen_US
dc.subjectMinersen_US
dc.subjectRadioactivity concentrationsen_US
dc.subjectGamma indexen_US
dc.subjectKaolin depositsen_US
dc.subjectRisk exposureen_US
dc.titleDistribution of radionuclides and assessment of risk exposure to the miners on a kaolin fielden_US
dc.typeArticleen_US
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