ASSESSMENT OF HEAVY METALS CONTAMINATION IN GROUNDWATER AND SUBSURFACE RESISTIVITY DISTRIBUTION IN ARTISANAL MINING COMMUNITIES: A COMPARATIVE STUDY OF ARUFU AND AKWANA, WUKARI LOCAL GOVERNMENT AREA, TARABA STATE, NIGERIA
DOI:
https://doi.org/10.33003/fjs-2025-0912-4000Keywords:
Heavy Metals, Groundwater Contamination, Artisanal Mining, Pollution IndicesAbstract
This study assesses heavy metal contamination in groundwater within the Arufu and Akwana mining communities of Taraba State, Nigeria. Thirty water samples from wells (6 streams and 24 boreholes) were analyzed for heavy metals using Atomic Absorption Spectrometry. Concentrations of Pb, Fe, Cu, Cd, Ni, Zn, Sb, and Mn exceeded World Health Organization (WHO) permissible limits for drinking water, with only Cr within safe levels. Mean concentrations (mg/L) were notably high for Fe (45.08–46.37), Pb (26.46–27.01), and Ni (16.18–16.82). Pollution indices—Heavy Metal Evaluation Index (HEI), Heavy Metal Pollution Index (HPI), and Degree of Contamination —were calculated, revealing severe pollution. Mean HEI was 786.4, HPI reached 5514.3 (far exceeding the critical value of 100), and mean of degree of contamination was 8553.3, all indicating high contamination levels. Vertical Electrical Sounding (VES) further mapped subsurface pollution, corroborating the influence of mining activities. The results demonstrate that groundwater in both communities is highly contaminated and poses significant health risks, including potential carcinogenic effects, due to artisanal and small-scale mining operations. This study underscores the urgent need for remediation and stricter regulatory measures to protect water resources and public health.
References
Abadi, H. T., Alemayehu, T., & Berhe, B. A. (2024). Heavy metal’s pollution health risk assessment and source appraisal of groundwater and surface water in Irob catchment, Tigray, Northern Ethiopia. Applied Water Science, 14(201), 1–18. https://doi.org/10.1007/s13201-024-02237-9
Adewumi, A. J., & Laniyan, T. A. (2023). Contamination, ecological, and human health risks of heavy metals in water from a Pb–Zn–F mining area, North Eastern Nigeria. Journal of Water & Health, 21(10), 1470–1488. https://doi.org/10.2166/wh.2023.132
Akpanowo, M. A., Benson, N., Ekong, G. B., Umaru, I., Iyakwari, S., & Yusuf, S. D. (2025). Effect of artisanal mining on water quality: An assessment of water sources in local communities in Anka, Northwest Nigeria. ISABB Journal of Health and Environmental Sciences, 10(1), 1–13. https://doi.org/10.5897/ISAAB-JHE2023.0085
Aloh, O. G., Obasi, N. A., Chukwu, K. E., & Agu, A. N. (2017). Effects of Lead-Zinc Mining Activities on Water and Soil Quality in Ameka Mining Area of Ezza South, Ebonyi State, Nigeria. International Research Journal of Naturaland Applied Sciences, 3(7), 194–231.
Asa, P. S., Madaki, K., & Jibo, A. (2024). Analysis of rainfall Trends and changes for Sustainable Agricultural Planning in Southern Taraba, Northeastern Nigeria. EJABS, 4(1), 92–105.
Awuchi, C. G., Obi, U. D., Chimezie, R. N., Umeaohana, O. S., & Ekotogbo, O. D. (2024). Heavy Metal Concentration of Surface Water and Groundwater within an Abandoned Artisanal Tin Mining Site in Barkin-Ladi LGA, Plateau State, Nigeria. IIARD International Journal of Geography & Environmental Mangament, 10(10), 30–40. https://doi.org/10.56201/ijgem.v10.no10.2024.pg30.40
Bute, S. I., Zhou, J., Luo, K., Girei, M. B., & Peter, R. T. (2024). Pb-Zn-Ba deposits in the Nigerian Benue Trough: A synthesis on deposits classification and genetic model. Ore Geology Reviews, 166(105947), 1–19. https://doi.org/10.1016/j.oregeorev.2024.105947
Dey, M., Akter, A., Islam, S., Dey, S. C., Choudhury, T. R., Fatema, K. J., & Begum, B. A. (2021). Assessment of contamination level, pollution risk and source apportionment of heavy metals in the Halda River water, Bangladesh. Heliyon, 7(12), 1–12. https://doi.org/10.1016/j.heliyon.2021.e08625
Edet, A., & Offiong, O. E. (2002). Evaluation of water quality pollution indices for heavy metal contamination monitoring. A study case from Akpabuyo-Odukpani area, Lower Cross River Basin (southeastern Nigeria). GeoJournal, 57, 295–304. https://doi.org/10.1023/B
Fagariba, C. J., Sumani, J. B. B., & Mohammed, A. S. (2024). Artisanal and Small-Scale Gold Mining Impact on Soil and Agriculture : Evidence from Upper Denkyira East Municipality, Ghana. European Journal of Environmental and Earth Sciences, 5(3), 12–20.
Foulds, S. A., Brewer, P. A., Macklin, M. G., Haresign, W., Betson, R. E., & Rassner, S. M. E. (2014). Flood-related contamination in catchments affected by historical metal mining: An unexpected and emerging hazard of climate change. Science of the Total Environment, 476–477, 165–180. https://doi.org/10.1016/j.scitotenv.2013.12.079
Ganiyu, S. A., Oyadeyi, A. T., & Adeyemi, A. A. (2021). Assessment of heavy metals contamination and associated risks in shallow groundwater sources from three different residential areas within Ibadan metropolis, southwest Nigeria. Applied Water Science, 11(81), 1–20. https://doi.org/10.1007/s13201-021-01414-4
Garba, A., Yahaya, M., Idris, Z., & Muhd, A. I. (2023). Assessment of Groundwater Heavy Metal Contamination in Hadejia Metropolis, Jigawa State, Nigeria. FUDMA Journal of Sciences (FJS), 7(1), 47–52.
Hamidu, H., Halilu, F. B., Yerima, K. M., Garba, L. M., Suleiman, A. A., Kankara, A. I., & Abdullahi, I. M. (2021). Heavy metals pollution indexing, geospatial and statistical approaches of groundwater within Challawa and Sharada industrial areas, Kano City, North-Western Nigeria. SN Applied Sciences, 3(690), 1–19. https://doi.org/10.1007/s42452-021-04662-w
Kana, A. A. (2022). Heavy metal assessment of groundwater quality in part of Karu, Central Nigeria. Water Practice and Technology, 17(9), 1802–1817. https://doi.org/10.2166/wpt.2022.102
Kyowe, H. A., Awotoye, O. O., Oyekunle, J. A. O., & Olusola, J. A. (2024). Index of heavy metal pollution and health risk assessment with respect to artisanal gold mining operations in Ibodi-Ijesa, Southwest Nigeria. Journal of Trace Elements and Minerals, 9(100160), 1–10. https://doi.org/10.1016/j.jtemin.2024.100160
Lorestani, B., Merrikhpour, H., & Cheraghi, M. (2020). Assessment of heavy metals concentration in groundwater and their associated health risks near an industrial area. Environmental Health Engineering and Management Journal, 7(2), 67–77. https://doi.org/10.34172/EHEM.2020.09
Mitra, S., Chakraborty, A. J., Tareq, A. M., Emran, T. Bin, Nainu, F., Khusro, A., Idris, A. M., Khandaker, M. U., Osman, H., Alhumaydhi, F. A., & Simal-gandara, J. (2022). Impact of heavy metals on the environment and human health: Novel therapeutic insights to counter the toxicity. Journal of King Saud University - Science, 34(3), 1–23. https://doi.org/10.1016/j.jksus.2022.101865
Mshelia, M. S., Alkali, A. N., Ibrahim, A. U., & Gunda, M. A. (2025). Evaluation of Heavy Metal concentrations in Groundwater in a Mining Community: A Case Study of Funakaye LGA, Gombe State. Arid Zone Journal of Basic and Applied Research, 4(2), 58–73.
Nasiru, S., Aliyu, A., Garbam, M. H., Dambazau, S. M., Nuraddeen, A., Babandi, A., & Ya’u, M. (2021). Determination of Some Heavy Metals in Groundwater and Table Water in Tudun Murtala, Nassarawa Local Government Area, Kano-Nigeria. Dutse Journal of Pure and Apllied Sciences (DUJOPAS), 7(4), 124–130.
Olagunju, T., Olagunju, A., Akawu, I., & Ugokwe, C. (2020). Quantification and Risk Assessment of Heavy Metals in Groundwater and Soil of Residential Areas around Awotan Landfill, Ibadan, Southwest-Nigeria. Journal of Toxicology and Risk Assessment, 6(033), 1–12. https://doi.org/10.23937/2572-4061.1510033
Oruonye, E. D., & Ahmed, Y. M. (2018). Challenges and prospects of mining of solid mineral resources in Taraba State , Nigeria. International Research Journal of Public and Environmental Health, 5(January), 1–7.
Philip, O., Akpa, C., Emmanuel, U., Omeokachie, A., Eunice, E., Nweke, O., Samuel, O., & Ifeanyi, A. (2023). Hydrogeochemical Approach of Groundwater Evaluation of the Effects of Mining in the Enyigba Mining District, Southeast Nigeria. Water Resources, 33, 34–55.
Prasad, B., & Bose, J. M. (2001). Evaluation of the heavy metal pollution index for surface and spring water near a limestone mining area of the lower Himalayas. Environmental Geology, 41, 183–188.
Roshinebegam, K., Selvakumar, S., & Sundararajan, S. (2015). Assessing of Water Quality Pollution Indices for Heavy Metal Contamination of Periyar River, Tamil Nadu, South India. Chemical Science Review and Letters, 4(13), 153–163.
Sani, A. H., Musa, A., & Achimugu, M. D. (2023). Assessment of heavy metal pollution of drinking water sources and staple food cultivars around artisanal mining site in Igade-Mashegu, Niger State, Nigeria. World Journal of Biology Pharmacy and Health Sciences, 14(02), 306–319.
Sanusi, K. A., Hassan, M. S., Abbas, M., & Kura, A. M. (2017). Assessment of heavy metals contamination of soil and water around abandoned Pb-Zn mines in Yelu, Alkaleri Local Government Area of Bauchi State, Nigeria. International Research Journal of Public and Environmental Health, 4(5), 72–77.
Senouci, O. (2020). Environmental and Health Impacts of Mining in Nigeria: A Review. Research Inventry: International Journal of Engineering and Science, 10(7), 27–31.
Siame, T., Muzandu, K., Kataba, A., & Ethel, M. (2023). Comparative determination of human health risks associated with consumption of groundwater contaminated with lead in selected areas surrounding the former lead mine in Kabwe and non-mining areas in Lusaka, Zambia. International Journal of Community Medicine and Public Health, 10(11), 4089–4095. https://doi.org/10.18203/2394-6040.ijcmph20233434
Stephen, U. A., & Mbamalu, M. (2020). Heavy metal pollution status and risk assessment on area with artisanal mining activities. Journal of Toxicology and Environmental Sciences, 12(2), 10–21. https://doi.org/10.5897/JTEHS2020.0456
Tella, A. A., & Danjibo, N. D. (2024). The Environmental Impact of Mining Activities in the Local Community : A Structural Equation Modelling Approach. International Journal of Social Work, 11(1), 44–53. https://doi.org/10.5296/ijsw.v11i1.21747
WHO. (2017). Guidelines for Drinking Water-Quality.
WHO. (2021). Guidelines on recreational water quality: Volume 1 Coastal and fresh waters (Vol. 1).
Yebpella, G. G., Hikon, N. B., Magomya, A. M., & Joshua, Y. (2020). Influence of Soil Properties on Metal Availability: A Case Study of Arufu and Akwana Mine, Taraba State, Nigeria. Asian Journal of Biochemistry, 15, 28–35. https://doi.org/10.3923/ajb.2020.28.35
Yusuf, A., Olasehinde, A., Mboringong, M. N., Tabale, R. P., & Daniel, E. P. (2018). Evaluation of Heavy Metals Concentration in Groundwater Around Kashere and Its Environs, Upper Benue Trough, Northeastern Nigeria. Global Journal of Geological Sciences, 16, 25–36.
Zhou, J., Jiang, Z., Qin, X., & Zhang, L. (2024). Heavy Metal Distribution and Health Risk Assessment in Groundwater and Surface Water of Karst Lead-Zinc Mine. Water, 16(2179), 1–15.
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Copyright (c) 2025 Makhai Nwunuji Usman, Apagu Buba Ankidawa, Umaru Ahmadu Babayi, Felix Gemlack Ngasoh
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