Effect of Seasonal Variation and Soil Parameters on Soil-Gas Radon Concentration in Ogbomoso, South Western Nigeria
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Abstract
Radon 222Rn, an inert natural radioactive gas, a daughter product in the 238U natural decay series, a source of alpha radiation. It accounts for about 55% of the total radiation from natural sources. Radon is known for its substantial variations in concentration due to both seasonal changes and variations in soil parameters. Soil, fractures in rocks and water are the main source of radon and they are the routes through which individual is exposed to it, in which this study is aimed at examining the effects of seasonal variation, soil parameters, on soil radon concentration. A total of hundred (100) in-situ soil radon measurements were carried out for both seasons (wet and dry) in Ogbomoso using an active electronic device RAD 7. Soil parameters were measured using a 4-in-1 digital metre. The obtained experimental data were subjected to a statistical tool (SPSS) Version 23, with statistical significance set at p < 0.01. The result showed that the effect of seasonal variation on soil-gas radon concentration was discovered to be maximum during the dry season with the radon concentration of 1900.01 Bq/m3 and minimum during the wet season with the radon concentration of 711.81 Bq/m3.The mean value of radon in soil-gas was found to be 553.48 Bq/m3 and 1366.34 Bq/m3 for wet and dry season respectively. Soil parameters considered in this work have notable influence on soil gas radon concentration in both seasons. Thus, providing valuable insight into the dynamics of radon migration in the soil. The results will help to develop effective mitigation strategies by policies makers and reducing the risk of radon related lung cancer in the study area.
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Adabanija, M.A., Afolabi, A.O., Olatunbosun, A.T. and Kolawole, L.L. (2014). Integrated approach to investigation of occurrence and quality of groundwater in Ogbomoso North, Southwestern Nigeria. Environmental Earth Sciences, 73(1), 139– 162. https://doi.org/10.1007/s12665-014-3401-8
Adagunodo, T.A., Sunmonu, L.A., Adabanija, M. A., Omeje, M., Odetunmibi, O.A. and Ijeh, V. (2019b). Statistical assessment of radiation exposure risks to farmers in Odo Oba, Southwestern Nigeria. Bulletin of the Mineral Research and Exploration, 159, 201–217. https://doi.org/10.19111/bulletinofmre495321 .
Al-Khateeb, H. M., Nuseirat, M., Aljarrah, K., Al-Akhras, M. A. H., and Bani-Salameh, H. (2017). Seasonal Variation Of Indoor Radon Concentration in A Desert Climate. Applied Radiation and Isotopes, 130, 49-53. https://doi.org/10.1016/j.apradiso.2017.08.017
Belete, G. D., and Shiferaw, A. M. (2022). A review of studies on the seasonal variation of indoor radon-222 concentration. Oncology Reviews, 16, 10570. https://doi.org/10.3389/or.2022.10570
Cevik, U., Kara, A., Celik, N., Karabidak, M., & Celik, A. (2011). Radon survey and exposure assessment in Karaca and Çal Caves, Turkey. Water, Air, & Soil Pollution, 214, 461-469. https://doi.org/10.1007/s11270-010-0437-6
Duggal, V., Rani, A. and Mehra, R. (2014). A Study of Seasonal Variations of Radon Levels in Different Types of Dwellings in Sri Ganganagar District, Rajasthan. Journal of Radiation Research and Applied Sciences, 7(2), 201-206. https://doi.org/10.1016/j.jrras.2014.02.007
Fijałkowska-Lichwa, L. and Przylibski, T. A. (2023). Monthly and quarterly correction factors for determining the mean annual radon concentration in the atmosphere of underground workplaces in Poland. Environmental Geochemistry and Health, 45(5), 1475-1498. https://doi.org/10.1007/s10653-022-01280-2
Giagias, V., Burghele, D. and Cosma, C. (2015). Seasonal Variation of Indoor Radon in Dwellings from Athens, Greece. Rom. J. Phys, 60 (9-10), 1581-1588. https://www.researchgate.net/profile/Burghele-Bety-Denissa/publication/288242690_Seasonal_variation_of_indoor_radon_in_dwellings_from_Athens_Greece/links/5f7af3fd299bf1b53e0e46b6/Seasonal-variation-of-indoor-radon-in-dwellings-from-Athens-Greece.pdf
Guadie, D.B. and Yetsedaw, A.A. (2021). General Overview of Radon Studies in Health Hazard Perspectives, Article ID 6659795, https://doi.org/10.1155/2021/6659795
Huynh, N. P., Thu, N., Van, T. and Le, C. H. (2020). The effects of some soil characteristics on radon emanation and diffusion, Journal of Environmental Radioactivity, Volume 216, 106189. https://doi.org/10.1016/j.jenvrad.2020.106189
Miklyaev, P. S., Petrova, T. B., Shchitov, D. V., Sidyakin, P. A., Murzabekov, M. A., Tsebro, D. N. and Gavriliev, S. G. (2022). Radon transport in permeable geological environments. Science of the Total Environment, 852, 158382. https://doi.org/10.1016/j.scitotenv.2022.158382
Nguyen, P. T. H., Vu, N. B., and Le Cong, H. (2018). Soil radon gas in some soil types in the rainy season in Ho Chi Minh City, Vietnam. Journal of environmental radioactivity, 193, 27-35. https://doi.org/10.1016/j.jenvrad.2018.08.017
Olaniyan, O. S., Akeredolu, D. A., Showale, O. S., & Akolade, A. S. (2016). Assessment of microbial quality of some selected shallow wells in Ogbomoso, South Western Nigeria. American Journal of Water Resources, 4(2), 30-34. doi: 10.12691/ajwr-4-2-1.
Oni, E. A., and Adagunodo, T. A. (2019). Assessment of radon concentration in groundwater within Ogbomoso, SW Nigeria. Journal of Physics: Conference Series Vol. 1299, No. 1, p. 012098. doi: 10.1088/1742-6596/1299/1/012098
Pulinets, S., Mironova, I., Miklyaev, P., Petrova, T., Shitov, A. and Karagodin, A. (2024). Radon Variability as a Result of Interaction with the Environment. Atmosphere, 15,167. https://doi.org/10.3390/atmos15020167
Smetanová, I., Holý, K., Luhová, Ľ., Csicsay, K., Haviarová, D. and Kunáková, L. (2020). Seasonal variation of radon and CO in the Važecká Cave, Slovakia. Nukleonika, 65(2), 153-157. doi: 10.2478/nuka-2020-0025
Taşköprü, C., İçhedef, M. and Saç, M. M. (2023). Diurnal, monthly, and seasonal variations of indoor radon concentrations concerning meteorological parameters. Environmental Monitoring and Assessment, 195(1), 25. https://doi.org/10.1007/s10661-022-10596-6
Yang, J., Busen, H., Scherb, H., Hürkamp, K., Guo, Q. and Tschiersch, J. (2019). Modeling of radon exhalation from soil influenced by environmental parameters. Science of the Total Environment, 656, 1304-1311. doi: 10.1016/j.scitotenv.2018.11.464
Yusuff, I.M., Oni O.M., Aremu, A.A. (2020). Computational Model for Prediction of Soil-Gas Radon-222 Concentration in Soil-Depths and Soil Grain Size Particles. World Academy of Science, Engineering and Technology International, Journal of Chemical and Molesscular Engineering 14, 5. Computational Model for Prediction of Soil-Gas Radon-222 Concentration in Soil-Depths and Soil Grain Size Particles (researchgate.net)