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Radiometric survey of natural radioactivity concentration and risk assessment on dwellers around Ijako active dumpsite in Ogun State

Adagunodo, T. A. and Enemuwe, Charity Adaeze and Usikalu, M.R. and Orosun, Muyiwa Michael and Adewoyin, O.O and Akinwumi, S. A. and Oloke, C. Olayinka and Lukman, A.F. and Adeniji, A. A. and Adewoye, A.O. (2021) Radiometric survey of natural radioactivity concentration and risk assessment on dwellers around Ijako active dumpsite in Ogun State. In: 4th International Conference on Science and Sustainable Development, 2021, Online.

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Abstract

Radiometric assessment of natural radioactivity concentration around Ijako dumpsite was done using hand held gamma spectrometer. A total of 10 in situ measurements were taken at the site. The U-238, Th-232, and K-40 radioactivity concentration obtained were used to assess the radiological hazard level in the area. Comparing the mean results of radiological parameter obtained with world average; Radium equivalent was far less than 370Bqkg-1, External hazard was less than 1, Annual effective dose equivalent was less than 0.08mSvy-1, Gamma index was less than 1, and Excess life cancer risk was less than 0.29 × 10-3. This implies that Ijako dumpsite poses no radiological hazard to the general public.

Item Type: Conference or Workshop Item (Paper)
Uncontrolled Keywords: Radiometric survey, Risk assessment, Residential area, Gamma spectrometer, Dumpsite
Subjects: Q Science > QA Mathematics
Q Science > QC Physics
Divisions: Faculty of Engineering, Science and Mathematics > School of Mathematics
Faculty of Engineering, Science and Mathematics > School of Physics
Depositing User: Mrs Patricia Nwokealisi
Date Deposited: 28 May 2021 08:48
Last Modified: 28 May 2021 08:48
URI: http://eprints.covenantuniversity.edu.ng/id/eprint/14192

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