Radiometric investigation of naturally occurring radionuclides in soils from Igbokoda, a coastal area in Ondo State Nigeria

Authors

  • Abiola Olawale Ilori
    Physical Science Department, Olusegun Agagu University of Science and Technology, Okitipupa, Ondo State, Nigeria
  • Funmilola Mabel Ojo
    Biological Science Department, Olusegun Agagu University of Science and Technology, Okitipupa, Ondo State, Nigeria
  • Kayode Olayele Karigidi
    Chemical Science Department, Olusegun Agagu University of Science and Technology, Okitipupa, Ondo State, Nigeria

Keywords:

Igbokoda , NaI(TI), Natural radionuclide, radiological risk, Soil

Abstract

The activity concentration of naturally occurring radionuclides was evaluated in soil samples collected from Igbokoda, a coastal area of Ondo state in Southwest Nigeria, using a NaI(TI) detector. According to the results, the average levels of 238U, 232Th, and 40K present in the soils are 37.63 ± 3.82, 23.20 ± 2.55, and 657.17 ± 45.15 Bq·kg-1, respectively. The radiological results from Igbokoda, Nigeria, offer a varied comparison with other coastal regions. While 238U and 232Th levels in Igbokoda are within global averages and generally lower than in some areas, the 40K levels are significantly higher, leading to an elevated radium equivalent activity (Raeq). Despite this, Raeq remains below the global safety threshold. Following the computation of the mean radiological risks, the reported values are absorbed gamma dose rate: 57·684 nGy·h-1; annually effective dose rate: 70.744 µSv·y-1; representative level index: 0.921; and radium equivalent: 121.413 Bq·kg-1, respectively. The study results demonstrate that the population’s radiation exposure resulting from the reported concentration of radionuclides in the soil of the study area is less than the levels recommended by global organizations. Therefore, the soil in the study region will not endanger the public. Nonetheless, more research is required to estimate the radionuclide concentration in the agricultural produce cultivated in the study area.

Dimensions

D. Ghosh, A. Deb, S. Bera, R. Sengupta & K. K. Patra, “Measurement of natural radioactivity in chemical fertilizer and agricultural soil: evidence of high alpha activity”, Environ. Geochem. & health. 30 (2008) 79. https://doi.org/10.1007/s10653-007-9114-0.

United Nations Scientific Committee on the Effects of Atomic Radiation UNSCEAR, Sources and effects of ionizing radiation report to the general assembly, with scientific annexes (Vol. I) United Nations, New York, 2000, pp. 1–66. https://doi.org/10.18356/49c437f9-en.

R. Ravisankar, J. Chandramohan, A. Chandrasekaran, P. Prakash, I. Vijayalakshmi, P. Vijayagopal & B. Venkatraman, “Assessments of radioactivity concentration of natural radionuclides and radiological hazard indices in sediment samples from the East coast of Tamilnadu, India with statistical approach”, Marine Pol. Bul. 97 (2015) 419. https://doi.org/10.1016/j.marpolbul.2015.05.058.

R. I. Obed, I. P. Farai & N. N. Jibiri, “Population dose distribution due to soil radioactivity concentration levels in 18 cities across Nigeria”, J. Radiol. Prot. 25 (2005) 305. https://doi.org/10.1088/0952-4746/25/3/007.

E. O. Agbalagba, G. O. Avwiri & Y. E. Chad-Umoreh, “?-Spectroscopy measurement of natural radioactivity and assessment of radiation hazard indices in soil samples from oil fields environment of Delta State, Nigeria”,. J. Environ. Rad. 109 (2012) 64. https://doi.org/10.1016/j.jenvrad.2011.10.012.

F. R. Amodu, F. Ben, A. T. Agbele, B. N. Ben-Festus & O. A. Oyebanjo, “Assessment of radionuclide concentration and associated risks in soils from Iperindo mining sites, Nigeria”, Discover Environ. 2 (2024) 17. https://doi.org/10.1007/s44274-024-00036-2.

B. C. Eke, I. R. Akomolafe, U. M. Ukewuihe & C. P. Onyenegecha, “Assessment of Radiation Hazard Indices Due to Natural Radionuclides in Soil Samples from Imo State University, Owerri, Nigeria”, Environ. Health Ins. 18 (2024) 18. https://doi.org/10.1177/11786302231224581.

C. N. Iwetan, I. A. Fuwape, A. M. Arogunjo & G. Obor, “Assessment of Activity Concentration of Radionuclides in Sediment from Oil Producing Communities of Delta State, Nigeria”, J. Environ. Prot. 06 (2015) 640. https://doi.org/10.4236/jep.2015.66058.

E. S. Joel, O. Maxwell, O. O. Adewoyin, O. C. Olawole, T. E. Arijaje, Z. Embong & M. A. Saeed, M. A., “Investigation of natural environmental radioactivity concentration in soil of coastaline area of Ado-Odo/Ota Nigeria and its radiological implications”, Scientific Reports 9 (2019) 4219. https://doi.org/10.1038/s41598-019-40884-0.

A. M. Asere, T. O. Owolabi, B. D. Alafe, O. P. Alabi & M. B. Alimi, “Assessment of Excess Gamma Dose Exposure Level in Typical Nigeria Commercial Building Materials Distribution Outlets”, J. Nig. Soc. of Phys. Sci. 3 (2021) 216. https://doi.org/10.46481/jnsps.2021.188.

C. M. Amakom, C. E. Orji, K. B. Okeoma & O. K. Echendu, “Radiological Analysis of Cassava Samples From a Coal Mining Area in Enugu State Nigeria”, Environ. Health Ins. 17 (2023) 1178. https://doi.org/10.1177/11786302231199836.

M. O. Isinkaye, O. A. OlaOlorun, A. Chandrasekaran, A. S. Adekeye, T. E. Dada, A. Tamilarasi, V. Sathish, M. U. Khandaker, A. Almujally, N. Tamam & A. Sulieman, “Quantification of radiological hazards associated with natural radionuclides in soil, granite and charnockite rocks at selected fields in Ekiti State, Nigeria”, Heliyon 9 (2023) e22451. https://doi.org/10.1016/j.heliyon.2023.e22451.

N. N. Jibiri & H. U. Emelue, “Soil radionuclide concentrations and radiological assessment in and around a refining and petrochemical company in Warri, Niger Delta, Nigeria”, Journal of Radiological Protection 28 (2008) 361. https://doi.org/10.1088/0952-4746/28/3/006.

B. Babatunde, F. Sikoki & I. Hart, “Human Health Impact of Natural and Artificial Radioactivity Levels in the Sediments and Fish of Bonny Estuary, Niger Delta, Nigeria”, Challenges 6 (2015) 244. https://doi.org/10.3390/challe6020244.

M. I. Sayyed, Z. M. Maria, Z. A. Hussein, L. A. Najam, B. F. Namq, T. Y. Wais, Y. Mostafa & H. Mansour, “Radiological Hazard Assessment of Soil from Kasik Oil Refinery, Nineveh, Iraq”, Nuclear Engineering and Technology 56 (2024) 3983. https://doi.org/10.1016/j.net.2024.06.041.

O. O. Adewoyin, O. Maxwell, S. A. Akinwumi, T. A. Adagunodo, Z. Embong & M. A. Saeed, “Estimation of activity concentrations of radionuclides and their hazard indices in coastal plain sand region of Ogun state”, Scient. Rep. 12 (2022) 2108. https://doi.org/10.1038/s41598-022-06064-3.

K. Kapanadze, A. Magalashvili & P. Imnadze, “Distribution of natural radionuclides in the soils and assessment of radiation hazards in the Khrami Late Variscan crystal massif (Georgia)”, Heliyon 5 (2019) e01377. https://doi.org/10.1016/j.heliyon.2019.e01377.

B. Ordinioha & S. Brisibe, ”The Human Health Implications of Crude Oil Spills in the Niger Delta, Nigeria: an Interpretation of Published Studies”, Nig. Med. Jour. 54 (2013) 10. https://doi.org/10.4103/0300-1652.108887.

M. A. Adeniran, M. A. Oladunjoye & K. O. Doro, “Soil and groundwater contamination by crude oil spillage: A review and implications for remediation projects in Nigeria”, Frontiers 11 (2023). https://doi.org/10.3389/fenvs.2023.1137496.

M. Horvath, G. Heltai, A. V´ arhegyi & L. Mbokazi, “A Study on the Pos-´ sible Relationship between Physico-Chemical Properties of the Covering Soil and the Mobility of Radionuclides and Potentially Toxic Elements in a Recultivated Spoil Bank”, Minerals 12 (2022) 1534. https://doi.org/10.3390/min12121534.

M. Omeje, M. M. Orosun, G. U. Aimua, O. O. Adewoyin, S. Sabri, H. Louis, E. S. Joel, C A. Omohinmin, E. F. Ahuekwe, P.O. Isibor, M. R. Usikalu, I. A. Oha, N. N. Garba & T. V. Targema, “Radioactivity distributions and biohazard assessment of coastal marine environments of nigerdelta, Nigeria”, All Earth 36 (2023) 1. https://doi.org/10.1080/27669645.2023.2299109.

H. Li, Q. Wang, C. Zhang, W. Su, Y. Ma, Q. Zhong, E. Xiao, F. Xia, G. Zheng & T. Xiao, “Geochemical Distribution and Environmental Risks of Radionuclides in Soils and Sediments Runoff of a Uranium Mining Area in South China”, Toxics 12 (2024) 95. https://doi.org/10.3390/toxics12010095.

A. O. Ilori & N. Chetty, “A review of the occurrence of naturally occurring radioactive materials and radiological risk assessment in South African soils”, Int. J. Environ. Health Res. 1 (2023) 14. https://doi.org/10.1080/09603123.2023.2280661.

National Research Council NRC, Committee on evaluation of EPA guidelines for exposure to naturally occurring radioactive materials Evaluation of guidelines for exposures to technologically enhanced naturally occurring radioactive materials, National Academies Press, Washington, US, 1999, 294. https://doi.org/10.17226/6360.

National Population Census Commission NPCC, “National Population Census Report, National Population Census Commission of the Federal Republic of Nigeria”, [Online]. https://nationalpopulation.gov.ng/census-enumeration.

O. B. Adegun & O. O. Olusoga, “A design workshop’s contribution to climate adaptation in coastal settlements in Nigeria”, Urban Sci. 4 (2020) 33. https://doi.org/10.3390/urbansci4030033.

F. O. Ogunsanwo, J. A. Olowofela, I. C. Okeyode, O. A. Idowu & O. T. Olurin, O. T. ”Aeroradiospectrometry in the spatial formation characterization of Ogun State, southwestern, Nigeria”, Scientific African 6 (2019) e00204. https://doi.org/10.1016/j.sciaf.2019.e00204.

S. Mohanty, R. Khan, U. Tamim, S. Adak, G. S. Bhunia & D. Sengupta, “Geochemical and Radionuclide studies of sediments as tracers for enrichment of beach and alluvial placers along the eastern coast of India”, Regional Studies in Marine Science 63 (2023) 103003. https://doi.org/10.1016/j.rsma.2023.103003.

International Atomic Energy Agency IAEA, “Measurement of radionuclides in food and the environment”, Technical Reports Series No. 295, Vienna, Austria, 1989, pp. 1–182 https://inis.iaea.org/collection/NCLCollectionStore/Public/20/041/20041399.pdf.

United Nations Scientific Committee on the Effects of Atomic Radiation UNSCEAR, “Sources and effects of ionizing radiation”, report to the general assembly, with scientific annexes, Vol. I, Scientific Annexes A and B, United Nations, New York, US, 2008, pp. 1–179. https://www.unscear.org/docs/reports/2008/11-80076_Report_2008_Annex_D.pdf

M. C. Amakom, E. C. Orji, C. Iroegbu, C. B. Eke, U. A. Nkwoada, D. A. Madu, G. K. Ugochuwu & J. T. Oforma, “Radionuclide concentration: the coal ash effect”, Int. J. of Phys. Sci. 13 (2018) 230. https://doi.org/10.5897/IJPS2018.4718.

A. Gad, A. Saleh & M. Khalifa, “Assessment of natural radionuclides and related occupational risk in agricultural soil, southeastern Nile Delta, Egypt”, Arab. J. of Geosci. 12 (2019) 188. https://doi.org/10.1007/s12517-019-4356-6.

G. Darko, A. Faanu, O. Akoto, A. Acheampong, E. J. Goode & O. Gyamfi, “Distribution of natural and artificial radioactivity in soils, wa-ter, and tuber crops”, Environ. Mon. & Assess. 187 (2015) 339. https://doi.org/10.1007/s10661-015-4580-9.

International Atomic Energy Agency IAEA, Naturally occurring radioactive material (NORM V), fifth international symposium, Seville, Spain, 2007, pp. 1–549. https://www-pub.iaea.org/MTCD/Publications/PDF/Pub1326_web.pdf.

G. A. Ibitola, O. Ajanaku, A. O. Ilori, O. R. Aremu & I. A. A. Omosebi, “Measurement of (40K, 238U, and 232Th) and associated dose rates in soil and commonly consumed foods (vegetables and tubers) at Okitipupa, Ondo State, Southwestern Nigeria”, Asian J. Res. & Rev. in Phys. 1 (2018) 11. https://doi.org/10.9734/ajr2p/2018/v1i124597.

R. Lokhande, B. Surung & P. Pawar, “Measurement of effective atomic number and electron density of carbohydrates by using nist, geant4, and NaI(TI) : a comparative study”, Int. J. of Adv. Res. 5 (2017) 1733. https://doi.org/10.21474/ijar01/4303.

C. K. Rotich, N. O. Hashim, M. W. Chege & C. Nyambura, “Naturally occurring radionuclides in soil samples of Bureti sub-county of Kericho county Kenya”, Rad. Prot. Dos. 192 (2020) 491. https://doi.org/10.1093/rpd/ncab006.

M. Bu, A. Murray, M. Kook, L. M. Helsted, J. Buylaert & K. J. Thomsen, “Characterization of scintillator-based gamma spectrometers for determination of sample dose rate in OSL dating applications”, Rad. Meas. 120 (2018) 253. https://doi.org/10.1016/j.radmeas.2018.07.003.

A. K. Ademola, M. A. Olaoye & P. O. Abodunrin, ”Radiological safety assessment and determination of heavy metals in soil samples from some waste dumpsites in Lagos and Ogun state, southwestern, Nigeria”, J. of Rad. Res. & Appl. Sci. 8 (2015) 148. https://doi.org/10.1016/j.jrras.2014.12.010.

B. B. Babatunde, F. D. Sikoki, G. O. Avwiri & Y. E. Chad-Umoreh, “Review of the status of radioactivity profile in the oil and gas producing areas of the Niger Delta region of Nigeria”, J. of Environ. Rad. 202 (2019) 66. https://doi.org/10.1016/j.jenvrad.2019.01.015.

A. O. Ilori, N. Chetty & B. Adeleye, “Activity concentration of natural radionuclides in sediments of Bree, Klein-Brak, Bakens, and uMngeni rivers and their associated radiation hazard indices”, Trans. of the Roy. Soc. of S. Afr. 75 (2020) 258. https://doi.org/10.1080/0035919x.2020.1815894.

M. Al-Shaaibi, J. Ali, N. Duraman, B. Tsikouras & Z. Masri, “Assessment of radioactivity concentration in intertidal sediments from coastal provinces in Oman and estimation of hazard and radiation indices”, Mar. Pol. Bull. 168 (2021) 112442. https://doi.org/10.1016/j.marpolbul.2021.112442.

O. S. Ajayi & C. G. Dike, “Radiological hazard assessment of natural radionuclides in soils of some oil-producing areas in Nigeria”, Environ. For. 17 (2016) 253. https://doi.org/10.1080/15275922.2016.1177756.

D. R. Fisher & F. H. Fahey, “Appropriate Use of Effective Dose in Radiation Protection and Risk Assessment”, Health Phys. 113 (2017) 102. https://doi.org/10.1097/hp.0000000000000674.

H. G. Adhab, S. A. Kadhim & E. K. Alsabari, “Assessment of excess lifetime cancer risk of soil samples in the Maysan neighborhood adjacent to the middle Euphrates cancer center in Najaf / Iraq”, IOP Conf. Ser. 928 (2020), 072100. https://doi.org/10.1088/1757-899x/928/7/072100.

Q. Wang, H. Wang, Y. Ma, J. Wang, W. Su, E. Xiao, J. Du, T. Xiao & Q. Zhong, “Geochemical distributions of natural radionuclides in surface soils and sediments impacted by lead-zinc mining activity”, Ecotox. & Environ. Saf. 263 (2023) 115210. https://doi.org/10.1016/j.ecoenv.2023.115210.

N. E. J. Mekongtso, M. M. Ndontchueng & O. Motapon, “Determination of 226Ra, 232Th, 40K, 235U, and 238U activity concentration and public dose assessment in soil samples from bauxite core deposits in Western Cameroon”, SpringerPlus 5 (2016) 1. https://doi.org/10.1186/s40064-016-2895-9.

R. Kritsananuwat, S. K. Sahoo, M. Fukushi, K. Pangza & S. Chanyotha, “Radiological risk assessment of 238U, 232Th, and 40K in Thailand coastal sediments at selected areas proposed for nuclear power plant sites”, J. of Radioanal. & Nucl. Chem. 303 (2014) 325. https://doi.org/10.1007/s10967-014-3376-7.

N. Karunakara, H. M. Somashekarappa, D. N. Avadhani, H. M. Mahesh, Y. Narayana & K. Siddappa, “Radium-226, 232Th, and 40K Distribution in the environment of Kaiga of southwest coast of India”, Health Phys. 80 (2001) 470. https://doi.org/10.1097/00004032-200105000-00007.

I. F. Al-Hamarneh & M. I. Awadallah, “Soil radioactivity levels and radiation hazard assessment in the highlands of northern Jordan”, Rad. Measur. 44 (2009) 102. https://doi.org/10.1016/j.radmeas.2008.11.005.

A. Al-Ghamdi, “Natural Radioactivity Measurements for Assessment Radiation Hazards from Surface Soil of Industrial Yanbu City, Saudi Arabia”, Life Sci. Jour. 11 (2014) 10. http://www.lifesciencesite.com/lsj/life1110/169_27089life111014_1123_1130.pdf.

H. T. Abba, S. Umar, D. J. Adeyemo, A. S. Aliyu, A. Ismaila & M. A. Saleh, “NORMs distribution in coastal soils and sediments of River Yobe, north-eastern Nigeria: an evaluation of the potential radiological hazards”, Bay. J. of Pur. & Appl. Sci. 10 (2018) 190. https://doi.org/10.4314/bajopas.v10i2.32.

T. Abate, “The activity concentrations of radionuclides 226Ra, 232Th and 40K of soil samples in the case of Metekel Zone, Ethiopia”, EPJ Nucl. Sci. & Technol. 8 (2022) 14. https://doi.org/10.1051/epjn/2022011.

Published

2024-10-22

How to Cite

Radiometric investigation of naturally occurring radionuclides in soils from Igbokoda, a coastal area in Ondo State Nigeria. (2024). Journal of the Nigerian Society of Physical Sciences, 6(4), 2034. https://doi.org/10.46481/jnsps.2024.2034

Issue

Volume 6, Issue 4, November 2024

Section

Earth Sciences
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Copyright (c) 2024 Abiola Olawale Ilori, Funmilola Mabel Ojo, Kayode Olayele Karigidi

Creative Commons License

This work is licensed under a Creative Commons Attribution 4.0 International License.

How to Cite

Radiometric investigation of naturally occurring radionuclides in soils from Igbokoda, a coastal area in Ondo State Nigeria. (2024). Journal of the Nigerian Society of Physical Sciences, 6(4), 2034. https://doi.org/10.46481/jnsps.2024.2034

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