Radiation Mapping of Osun State, Southwestern Nigeria, Measuring The Status of Radioactivity
DOI:
https://doi.org/10.53704/fujnas.v12i2.471Keywords:
Fukushima Daiichi, Gamma Radiation, Geiger Muller Counter, Radiation Map, Annual Effective DoseAbstract
The Fukushima Daiichi nuclear disaster happened in Japan long ago in 2011, and it resulted in the emission of radioactive substances into the atmosphere. These substances were transported by air currents and were detected in several parts of the world, including Nigeria. In the aftermath of the event, it has become necessary to determine the spatial distribution of radioactivity within Osun state. This present study aims to investigate and identify areas of high gamma radiation in Osun State. This study utilised a Garmin GPS and a Geiger Muller counter radiation detector over the entire state. This study presents a radiation map of Osun state. It shows that the region has an elevation range of 190 m to 600 m, and the elevation chart shows that in comparison to the extreme south of the research region, the extreme north is distinguished by high heights. The average ionising radiation within the state ranges from 0.08 to 0.3l µSv/hr. Places including Ila, Boluwaduro and Obokun recorded the highest elevation, which in turn also had the highest dose of gamma radiation, while Ife North, Ife South, Isokan, and Irewole axis recorded their lowest figures of elevation and also had low doses of gamma radiation. The average annual effective dose rate was 0.33 mSvy-1 which is greater than 0.07 mSvy-1 for outdoor exposure. Therefore, it is important to take appropriate safety measures by wearing protection shields to avoid or minimise exposure to high levels of gamma radiation.
Keywords: Fukushima Daiichi, Gamma Radiation, Geiger Muller Counter, Radiation Map, Annual Effective Dose
References
Aboud, W., Alqahtani, F., & Aboelnaga, H.O. (2019). Radiation map of King Abdulaziz University campus and surrounding areas. Journal of Radiation Research and Applied Sciences. Vol 12 Issue 1, pp. 260 – 268.
Agbalagba, E.O. (2017). Assessment of excess lifetime cancer risk from gamma radiation levels in Effurun and Warri city of Delta State, Nigeria. Journal of Taibah University for Science. 11:367–380. http://dx.doi.org/10.1016/j.jtusci. 2016.03.007
Agbalagba E.O. & Anekwe, U.L. (2020): Radiometric mapping of terrestrial gamma radiation and evaluation of radiological health risk on the residents in Nigeria state commercial and capital cities. Environmental Forensics, DOI: 10.1080/15275922.2020.183607
Alfarobbi, R. & Anggraini, N. (2018). Preservation of foodstuffs with gamma ray irradiation technology for decreasing pathogen bacteria on food and maintain sustainable food security: A review. 3rd International Conference of Integrated Intellectual Community (ICONIC)
Al Mugren, K.S. (2015). Assessment of natural radioactivity levels and radiation dose rate in some soil samples from historical area, Al-Rakkah, Saudi Arabia. Natural Science 7:238–247
Anekwe, U.L. & Onoja, R.A. (2020). Assessment of environmental radioactivity level and its health implication in Imiringi community Bayelsa state, Nigeria. Journal of Applied Sciences and Environmental Management. Vol. 24 (6) 1045-1050.
Esan, D.T., Ajiboye, Y., Obed, R.I., Adeol, M. & Srihhar, M.K. (2022). Measurement of natural radioactivity and assessment of radiological hazard indices of soil over the lithologic units in Ile-Ife Area, South-West Nigeria. Environmental Health Insights. 16. Doi.10.1177/11786302221100041
Horvath, A. & Rachlew, E. (2016). Nuclear power in the 21st century: Challenges and possibilities. Ambio. 45 (Suppl 1): 38 – 49
ICRP. (2000). Publication 60, Recommendations of the International Commission of Radiological Protection, in ICRP Publication 60. Oxford: Pergamon Press Annals of ICRP. Retrieved from http://www.icrp.org/docs/2000_Ann_Rep_52_261_01a.pdf
Jain, S. (2021). Radiation in medical practice & health effects of radiation: Rationale, risks and rewards. Journal of Family Medicine and Primary Care. 10(4): 1520 – 1524
Jaksic, A. Nikoloc, J. & Palma, A. (2023). Special issue: Applications of radiation in science and technology. The European Physical and Journal Special Topics. 232, 1459 – 1463
Mishra, M.K., Jha S.K., Patra, A.C., Mishra, D.G., Sahoo, S.K., Sahu, S.K., Verma G.P., Saindane, S.S., Mitra, P., Garg, S., Pulhani, V., Saradhi, I.V., Choudhury P., Kumar, A.V., Sapra, B.K., Kulkarni, M.S., Aswal D.K. (2023). Generation of map on natural environmental background absorbed dose rate in India. Journal of Environmental Radioactivity. 262 (2023) 107146. Pp 1 – 7
Rahaman, M.A. (1988). Recent advances in the study of the Basement Complex of Nigeria. In Precambrian Geology of Nigeria. Pp 11 – 43.
Shahbazi-Gahrouei, D., Gholami, M., & Setayandeh, S. (2013). A review on natural background radiation. Advanced Biomedical Research. 2: 65. Doi: 10.4103/2277-9175.115821
WHO (2023). Ionizing radiation and health effects
United Nationals Sources and Effects of Atomic Radiation (UNSCEAR) (2008). Report on the Sources and effects of ionizing radiation. Report Vol. 1 to the General Assembly, Annexes Exposure from Natural Radiation Sources. New York: United Nations, Sales Publications.
Downloads
Published
Issue
Section
License
Copyright (c) 2023 Warith Adewale Adebisi, Ifedayo Olukemi Adeojo, Taiwo Temitope Adeojo, Olumuyiwa Femi Adewumi , Khadijat Kuburat Babalola , Surajudeen Otolowo Azeez
This work is licensed under a Creative Commons Attribution 4.0 International License.
Authors retain copyright of their work, with first publication rights granted to Fountain Journal of Natural and Applied Sciences. Articles in FUJNAS are published on the Creative Commons Attribution 4.0 International license (CC BY 4.0).
How to Cite
