Assessment of Heavy Metal Contamination in Irrigated Farmland and Associated Health Risks in Kano State, Nigeria: A Review
DOI:
https://doi.org/10.56919/usci.2432.009Keywords:
heavy metals, contamination, soil, cropsAbstract
The primary causes of soil pollution in Kano state, which leads to heavy metal contamination in crops grown from such soils, are using contaminated water for irrigation and household and industrial sludge as fertilizers. Along waterways where untreated wastewater flows, vegetables are planted. To determine the existing situation and potential preventative and remediation measures, it has become necessary to conduct multiple research projects on the levels of heavy metals in the soil and plants grown in Kano state, Nigeria. In light of this, this study has focused on the present and potential state of heavy metal buildup in soils and farmed crops and the potential health risks that may arise from this, including food insecurity. The main findings of the conducted research were that regular monitoring of the level of heavy metals in soils and crops should be established, and guidelines for the cultivation and consumption of leafy vegetables grown on contaminated soils should be set equally to avoid health risks.
References
Alhassan, A. J., Muhammad, I. U., Sule, M. S., Dangambo, M. A., & Syed, M. (2019). Correlation Analysis of Toxic Metals Distribution and Pollution Indices in Soil , Beans and Maize Samples of Kano State, Nigeria. Annual research review in biology 32(3), 1–13. . DOI: https://doi.org/10.9734/arrb/2019/v32i330086
Babandi, A., , Atiku, M. K., Alhassan, A. J., Ibrahim, A., & and Shehu, D. (2012). Level Of Heavy Metals In Soil And Some Vegetables Irrigated With Industrial Waste Water Around Sharada Industrial Area, chemsearch joirnal 3(2), 34–38.
Barceloux DG. (1999) Cobalt. Journal of Toxicology: Clinical Toxicology. (1999; 37(2): 201–216. . DOI: https://doi.org/10.1081/CLT-100102420
Bernard, E., & Ayandeji, M. (2020). Impact of industrial effluents , domestic wastewater and natural dams on heavy metals concentrations in vegetables cultivated in Northern Nigeria. Journal of enviromental chemisty and ecotoxicology 12(1), 1–7. . DOI: https://doi.org/10.5897/JECE2019.0451
Bichi, M. H., & Bello, U. F. (2013). Heavy Metals in Irrigated Crops along Tatsawarki River in Kano , Nigeria. International journal o f moredern engineering research vol 3(4), 2382–2388.
Chiroma, T. M., Ebewele, R. O., & Hymore, F. K. (2014). Comparative Assessement Of Heavy Metal Levels In Soil , Vegetables And Urban Grey Waste Water Used For Irrigation In Yola And Kano. International refereed journal journal of engineering and science 3(2), 1–9.
Dawaki, U. M., Dikko, A. U., Noma, S. S., & Aliyu, U. (2013). Heavy Metals and Physicochemical Properties of Soils in Kano Urban Agricultural Lands. International journal of plant and soil science 21(3), 239–246. http://www.sciencedomain.org/review-history.php?iid=776&id=24&aid=6744. DOI: https://doi.org/10.4314/njbas.v21i3.9
Dawaki, U. M., Dikko, A. U., Noma, S. S., & Aliyu, U. (2013). Pollution as a threat factor to urban food security in metropolitan Kano, Nigeria. Food and Energy Security 2013; 2(1): 20–3. .. DOI: https://doi.org/10.1002/fes3.18
Doka, M. G., Tasiu, N., & Abdullahi, S. I. (2021). Accumulation of potentially toxic elements by some vegetables in Dogon – Dawa irrigation sites, Bichi, kano state, Nigeria. Nigerian Research Journal of Chemical Sciences Volume 9, Issue 2, 2021. 9(2), 353–363.
Edogbo. B , Okolocha E., Maikai B. , Aluwong T. , Uchendu .C (2020) Risk analysis of heavy metal contamination in soil, vegetables and fish around Challawa area in Kano State, Nigeria. Scientific African 7 2468-2276. DOI: https://doi.org/10.1016/j.sciaf.2020.e00281
Hawkes JS (1997) Heavy Metals. J Chem Educ. 1997; 74(11): 1374. DOI: https://doi.org/10.1021/ed074p1374
Hubbs-Tait L, Nation JR, Krebs NF, Bellinger DC.(2005). Neurotoxicants, Micronutrients, and Social Environments: Individual and Combined Effects on Children's Development. Psychol Sci Public Interest. 2005 Dec;6(3):57-121. Epub 2005 Dec 1. PMID: 26158603. DOI: https://doi.org/10.1111/j.1529-1006.2005.00024.x
Hussaini, A., Ali, A. F., & Abdullahi, B. A. (2021). Effects of using industrial wastewater for irrigation on heavy metals in soils and crops : a case of Kano metropolis , Nigeria. Journal of chemical society of nigeria 46(6), 931–939. . DOI: https://doi.org/10.46602/jcsn.v46i5.674
Ihedioha JN, Ujam OT, Nwuche CO, Ekere NR and Chime CC.(2016) Assessment of heavy metal contamination of rice grains (Oryza sativa) and soil from Ada field, Enugu, Nigeria: Estimating the human health risk. Hum and Ecol Risk Assess: An Int J; 22(8). : DOI: https://doi.org/10.1080/10807039.2016.1217390
Imam, T. S., Sani, A., & Tijjani, J. S. (2019). Assessment of Uptake of Heavy Metals by Selected Vegetables in River Getsi Irrigation Area , Kano , Nigeria. Dutse journal of pure and applied sciences 5(1), 7–22.
Jaishankar M, Tseten T, Anbalagan N, Mathew BB and Beeregowda KN. (2014)Toxicity, mechanism and health effects of some heavy metals. Interdisciplinary Toxicology. 7(2): 60–72. DOI: https://doi.org/10.2478/intox-2014-0009
Lambu, Z. N., Nafiu, S. A., Tofa, D. Y., Ibrahim, A. A., Sunusi, S., & Abubakar, A. I. (2017). Comparative study of some heavy metals analysis in soils used for irrigation in polluted and unpolluted areas of kano state. Emween journal of analytical chemistry 3(2), 137–142.
Lawal, O. A., & Audu, A. A. (2011). Analysis of heavy metals found in vegetables from some cultivated irrigated gardens in the Kano metropolis , Nigeria. Journal of Environmental Chemistry and Ecotoxicology3(6), 142–148.
Lenntech. (200$)Water treatment and air purification 2004. Water Treatment, Rotterdam’s, Netherlands. www.excelwater.com/thp/filters/ Water-urification.htm. Accessed May 12, 2014.
McDowell LR. Minerals in Animal and Human Nutrition. Amsterdam, The Netherlands: Elsevier; 2003. DOI: https://doi.org/10.1016/B978-0-444-51367-0.50010-6
Mustapha, A., Yakudima, I.I, Alhaji, M., Nabegu, A.B, Dakata, F.A.G, Umar, Y.A. and Musa, B.U. (2014). Overview of the Physical and Human setting of Kano region, Nigeria. Research Journali’s Journal of Geography, 1(5):1-12.
Olofin, E.A., Nabegu, A.B. and Dambazau, A.M. (2008). Wudil within Kano region: a geographical synthesis. Published by Adamu Joji Publishers on behalf of The Department of Geography, Kano University of Science and Technology, Wudil pp144
Onakpa, M. M., Njan, A. A., & Kalu, O. C. (2018). A Review of Heavy Metal Contamination of Food Crops in Nigeria. Annals of global health 84(3), 488–494. DOI: https://doi.org/10.29024/aogh.2314
She she S.M, A, Y., T.A, M., An, A., Sa, M., Sy, I., Gm, K., & Mi, M. (2022). Heavy Metal Level Evaluation in Commonly Cultivated Vegetables from Different Farming Areas in Kano State. EAS Journal of nutrition and food science 1873(2), 34–39. DOI: https://doi.org/10.36349/easjnfs.2022.v04i02.002
Sobha K, Poornima A, Harini P and Veeraiah K. A (2007) study on biochemical changes in the freshfreshwater, catla catla (hamilton) exposed to the heavy metal toxicant cadmium chloride. Kathmandu Univ J of Sci Eng and Tech.; 1(4): 1–11. DOI: https://doi.org/10.3126/kuset.v3i2.2890
United States Department of Health and Human Services, Agency for Toxic Substances and Disease Registry. Toxicological Profile for Cadmium; 2008.
United States Department of Health and Human Services, Agency for Toxic Substances and Disease Registry. 2005; 1–397.
Downloads
Published
Issue
Section
License

This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.
UMYU Scientifica recognizes the importance of protecting authors’ intellectual property while promoting the free exchange of scientific knowledge. The journal adopts a copyright-retention model that empowers authors to maintain ownership of their work while granting the journal rights necessary for publication and dissemination.
1. Copyright Ownership
Authors publishing with UMYU Scientifica retain full copyright and publishing rights to their work. By submitting a manuscript, authors agree to grant the journal a non-exclusive license to publish, reproduce, distribute, and archive the article in all forms and media for the purpose of scholarly communication.
2. Licensing Terms
All articles are published under the Creative Commons Attribution–NonCommercial (CC BY-NC) license.
This license permits others to:
- Share - copy and redistribute the material in any medium or format.
- Adapt - remix, transform, and build upon the material.
- For non-commercial purposes only, provided that proper credit is given to the original author(s) and UMYU Scientifica as the source, a link to the license is provided, and any modifications are clearly indicated.
Commercial reuse or distribution of the content requires written permission from both the author and the editorial office.
3. Author Rights
Authors are free to:
- Deposit all versions of their manuscript (preprint, accepted version, and published version) in institutional, disciplinary, or public repositories without embargo.
- Use and distribute their published article for non-commercial scholarly purposes, including teaching, conference presentations, and research sharing.
- Include their work in future books, theses, or compilations, provided proper citation to the journal is made.
4. Publisher’s Rights
Upon publication, UMYU Scientifica retains the right to:
- Host, index, and disseminate the article through the journal’s website and partner databases.
- Archive the content in long-term preservation systems such as the PKP Preservation Network (PKP-PN) and the Umaru Musa Yar’adua University Institutional Repository.
5. Attribution and Citation
Users must give appropriate credit to the author(s), include a link to the article’s DOI or the journal webpage, and indicate if changes were made. Proper citation is required whenever the work is reused or referenced.
6. License Reference
For detailed terms of use, please refer to the Creative Commons Attribution–NonCommercial 4.0 International License (CC BY-NC 4.0):
https://creativecommons.org/licenses/by-nc/4.0/









