This study was carried out to evaluate the radioactivity concentrations of 40K, 232Th and 238U in ten rice samples of the same species collected from different rice farms across Ondo and Ekiti States, southwestern Nigeria. The activity concentration measurements were determined using n–type co-axial HPGe detectors. In samples from one of the states (Ondo), the activity concentration was found to vary from 36.04 - 2139.35 Bq∙kg-1 for 40K, 0.12 - 79.23 Bq∙kg-1 for 232Th and 0.22 - 83.36 Bq∙kg-1 for 238U. In the other state (Ekiti), the value was found to vary from 3.99 - 2078.91 Bq∙kg-1 for 40K, 5.18 - 73.82 Bq∙kg-1 for 232Th and 14.50 - 83.21 Bq∙kg-1 for 238U. The mean annual effective dose to adults from the consumption of the rice were obtained as 0.93 and 0.84 mSv∙y-1 with excess lifetime cancer risk (ELCR) calculated to be 2.98 x 10-10 and 2.56 x 10-10 for Ondo and Ekiti, respectively. The values were compared with the internationally acceptable limits and were found to be lower compared to the acceptable world average ELCR value of 0.29 x 10–3 for radiological risk to the public by UNSCEAR. The rice samples from the locations are safe for human consumption.
radioactivity, rice, effective ingestion dose, gamma spectroscopy, excess life time cancer risk
Primary Language | English |
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Subjects | Engineering |
Journal Section | Research Articles |
Authors |
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Publication Date | November 22, 2022 |
Published in Issue | Year 2021, Volume 8Issue 1 |
Bibtex | @research article { ankujns1117388, journal = {Journal of Nuclear Sciences}, issn = {2147-7736}, eissn = {2148-3981}, address = {}, publisher = {Ankara University}, year = {2022}, volume = {8}, number = {1}, pages = {1 - 9}, title = {Estimation of Effective Dose and Excess Lifetime Cancer Risks due to ingestion of Natural Radionuclides in Rice Samples from Selected Farms in Southwestern Nigeria.}, key = {cite}, author = {Arije, Olubodun and Ayodele, Adeolu and Olubı, Omodele} } |
APA | Arije, O. , Ayodele, A. & Olubı, O. (2022). Estimation of Effective Dose and Excess Lifetime Cancer Risks due to ingestion of Natural Radionuclides in Rice Samples from Selected Farms in Southwestern Nigeria. . Journal of Nuclear Sciences , 8 (1) , 1-9 . Retrieved from http://jns.ankara.edu.tr/en/pub/issue/73496/1117388 |
MLA | Arije, O. , Ayodele, A. , Olubı, O. "Estimation of Effective Dose and Excess Lifetime Cancer Risks due to ingestion of Natural Radionuclides in Rice Samples from Selected Farms in Southwestern Nigeria." . Journal of Nuclear Sciences 8 (2022 ): 1-9 <http://jns.ankara.edu.tr/en/pub/issue/73496/1117388> |
Chicago | Arije, O. , Ayodele, A. , Olubı, O. "Estimation of Effective Dose and Excess Lifetime Cancer Risks due to ingestion of Natural Radionuclides in Rice Samples from Selected Farms in Southwestern Nigeria.". Journal of Nuclear Sciences 8 (2022 ): 1-9 |
RIS | TY - JOUR T1 - Estimation of Effective Dose and Excess Lifetime Cancer Risks due to ingestion of Natural Radionuclides in Rice Samples from Selected Farms in Southwestern Nigeria. AU - OlubodunArije, AdeoluAyodele, OmodeleOlubı Y1 - 2022 PY - 2022 N1 - DO - T2 - Journal of Nuclear Sciences JF - Journal JO - JOR SP - 1 EP - 9 VL - 8 IS - 1 SN - 2147-7736-2148-3981 M3 - UR - Y2 - 2022 ER - |
EndNote | %0 Journal of Nuclear Sciences Estimation of Effective Dose and Excess Lifetime Cancer Risks due to ingestion of Natural Radionuclides in Rice Samples from Selected Farms in Southwestern Nigeria. %A Olubodun Arije , Adeolu Ayodele , Omodele Olubı %T Estimation of Effective Dose and Excess Lifetime Cancer Risks due to ingestion of Natural Radionuclides in Rice Samples from Selected Farms in Southwestern Nigeria. %D 2022 %J Journal of Nuclear Sciences %P 2147-7736-2148-3981 %V 8 %N 1 %R %U |
ISNAD | Arije, Olubodun , Ayodele, Adeolu , Olubı, Omodele . "Estimation of Effective Dose and Excess Lifetime Cancer Risks due to ingestion of Natural Radionuclides in Rice Samples from Selected Farms in Southwestern Nigeria.". Journal of Nuclear Sciences 8 / 1 (November 2022): 1-9 . |
AMA | Arije O. , Ayodele A. , Olubı O. Estimation of Effective Dose and Excess Lifetime Cancer Risks due to ingestion of Natural Radionuclides in Rice Samples from Selected Farms in Southwestern Nigeria.. Journal of Nuclear Sciences. 2022; 8(1): 1-9. |
Vancouver | Arije O. , Ayodele A. , Olubı O. Estimation of Effective Dose and Excess Lifetime Cancer Risks due to ingestion of Natural Radionuclides in Rice Samples from Selected Farms in Southwestern Nigeria.. Journal of Nuclear Sciences. 2022; 8(1): 1-9. |
IEEE | O. Arije , A. Ayodele and O. Olubı , "Estimation of Effective Dose and Excess Lifetime Cancer Risks due to ingestion of Natural Radionuclides in Rice Samples from Selected Farms in Southwestern Nigeria.", Journal of Nuclear Sciences, vol. 8, no. 1, pp. 1-9, Nov. 2022 |