Abstract
Environmental and public health concerns grow on the interaction of municipal solid waste (MSW) leachates from unlined waste disposal sites with aquifers in many developing countries. This study investigated the environmental pollution impacts of an unlined MSW landfill at Ajakanga area, Ibadan, southwest Nigeria. Analytical studies indicated that the concentrations of NO3−, SO42−, PO43−, NH4−, Cl−, Na, Fe, Mn, Cr, and Mo in the leachate samples exceeded the WHO wastewater discharge limits. Hydrochemical parameters of the groundwater and surface water were within WHO allowable thresholds, except for EC, TDS, Fe, Mn, and Pb in the groundwater and Pb, Cd, and Cu in the surface water, indicating major geogenic and minor MSW leachate impacts on the groundwater and surface water chemistry. Bacteria found in the leachate include Enterobacter cloacae (16.67%), Pseudomonas spp. (14.28%) and Bacillus spp. (9.52%). The geoelectrical imaging data indicated substratum leachate infiltration greater than 10 m deep, which is consistent with the low resistivity values of the topsoil-weathered basement layers. The health risk assessment showed high hazardous index values, indicating health risks of Mn, Cd and Pb in the surface water for the residents around Ajakanga landfill. Hydrochemical data indicated greater impact of the MSW leachates on the surface water than the groundwater, while geophysical data showed greater propensity of the surrounding aquifer to leachate interaction through fractured basement zone with increasing abstraction. Waste site closure and hydrochemical monitoring are suggested measures to mitigate environmental pollution in the study area.
Similar content being viewed by others
Data availability
The data are available upon request.
References
Abdelhafiz, M. A., Elnazer, A. A., Seleem, E. M., Mostafa, A., Al-Gamal, A. G., Salman, S. A., & Feng, X. (2021). Chemical and bacterial quality monitoring of the Nile River water and associated health risks in Qena-Sohag sector, Egypt. Environmental Geochemistry and Health, 43(10), 4089–4104. https://doi.org/10.1007/s10653-021-00893-3
Abdel-Salam, M. M., & Abu-Zuid, G. J. (2015). Impact of landfill leachate on the groundwater quality: A case study in Egypt. Journal of Advanced Research, 6(4), 579–586. https://doi.org/10.1016/j.jare.2014.02.003
Abdelwaheb, A., Moncef, Z., & Hamed, B. D. (2012). Landfill leachate generation and its impact on water at urban landfill (JabelChakir, Tunisia). Hydrology: Current Research, 3, 128. https://doi.org/10.4172/2157-7587.1000128
Abiriga, D., Jenkins, A., Alfsnes, K., Vestgarden, L. S., & Klempe, H. (2021). Characterization of the bacterial microbiota of a landfill-contaminated confined aquifer undergoing intrinsic remediation. Science of the Total Environment, 785, 147349.
Aboyeji, O. S., & Eigbokhan, S. F. (2016). Evaluations of groundwater contamination by leachates around Olusosun open dumpsite in Lagos metropolis, southwest Nigeria. Journal of Environmental Management, 1(183), 333–341. https://doi.org/10.1016/j.jenvman.2016.09.002
Adekola, P. O., Iyalomhe, F. O., Paczoski, A., Abebe, S. T., Pawlowska, B., Bak, M., & Cirella, G. T. (2021). Public perception and awareness of waste management from Benin City. Scientific Report, 11, 306. https://doi.org/10.1038/s41598-020-79688-y
Adewuyi, G. O., Etchie, A. T., & Etchie, T. O. (2014). Health risk assessment of exposure to metals in a Nigerian water supply. Human and Ecological Risk Assessment: An International Journal, 20, 29–44. https://doi.org/10.1080/10807039.2012.691407
Adimalla, N., Chen, J., & Qian, H. (2020). Spatial characteristics of heavy metal contamination and potential human health risk assessment of urban soils: A case study from an urban region of South India. Ecotoxicology and Environmental Safety, 194, 110406. https://doi.org/10.1016/j.ecoenv.2020.110406
Aluko, O. O., & Sridhar, M. K. C. (2005). Application of constructed wetlands to the treatment of leachate from a MSW landfill in Ibadan, Nigeria. Journal of Environmental Health, 67(10), 58–62.
American Public Health Association (APHA). (2005). Standard methods for examination of water and wastewater (21st ed.). American Public Health Association.
Amuda, O. S., Adebisi, S. A., Jimoda, L. A., & Alade, A. O. (2014). Challenges and possible panacea to the MSW management in Nigeria. Journal of Sustainable Development Studies, 6(1), 64–70.
Aromolaran, O., Ayansina, A. D. V., Adegbami, A. A., Oshanisi, P. O., & Oladoyin, D. M. (2022). Prevalence of multidrug-resistant bacteria in groundwater supplies in Osogbo, Southwest Nigeria. International Journal of Environmental Studies, 79, 1–13.
Aromolaran, O., Fagade, O. E., Aromolaran, O. K., Faleye, E. T., & Faerber, H. (2019). Assessment of groundwater pollution near Aba-Eku municipal solid waste dumpsite. Environmental Monitoring and Assessment, 191(12), 718. https://doi.org/10.1007/s10661-019-7886-1
Awoibi, J., & Ademakinwa, G. O. (2018). Geophysical and hydro-chemical investigations of OkeAsunle dumpsite in Ile-Ife, southwestern Nigeria for subsoil and surface water pollution. Journal of Health and Pollution, 8(20), 1–9.
Ayyaz, K., Zaheer, A., Rasul, G., & Mirza, M. S. (2016). Isolation and identification of 16S rRNA sequence analysis of plant growth promoting azospirilla from the rhizosphere of wheat. Brazilian Journal of Microbiology, 47(3), 542–550.
Babiker, I. S., Mohamed, A. A. M., Terao, H., Kato, K., & Ohta, K. (2004). Assessment of groundwater contamination by nitrate leaching from intensive vegetable cultivation using geographic information system. Environment International, 29, 1009–1017. https://doi.org/10.1016/S0160-4120(03)00095-3
Barati, A., Ghaderpour, A., Chew, L. L., Bong, C. W., Thong, K. L., Chong, V. C., & Chai, L. C. (2016). Isolation and characterization of aquatic borne Klebsiella pneumoniae from tropical estuaries in Malaysia. International Journal of Environmental Research and Public Health, 13, 426–442. https://doi.org/10.3390/ijerph13040426
Ben Salem, Z., Capelli, N., Laffray, X., Grisey, E., Ayadi, H., & Aleya, L. (2014). Seasonal variation of heavy metals in water, sediment and roach tissue in a landfill draining system pond (Etueffont, France). Ecological Engineering, 69, 25–37. https://doi.org/10.1016/j.ecoleng.2014.03.072
Bichet, V., Grisey, E., & Aleya, L. (2016). Spatial characterization of leachate plume using electrical resistivity tomography in a landfill composed of old and new cells (Belfort, France). Engineering Geology, 211, 61–73. https://doi.org/10.1016/j.enggeo.2016.06.026
Boateng, T. K., Opoku, F., & Akoto, O. (2019). Heavy metal contamination assessment of groundwater quality: A case study of Oti landfill site, Kumasi. Applied Water Science, 9, 33.
Boufekane, A., & Saighi, O. (2018). Application of groundwater vulnerability overlay and index methods to the Jijel plain area (Algeria). Groundwater, 56, 143–156. https://doi.org/10.1111/gwat.12582
Christensen, T. H., Kjeldsen, P., Bjerg, P. L., Jensen, D. L., Christensen, J. B., & Baun, A. (2001). Biogeochemistry of landfill leachate plumes. Applied Geochemistry, 16, 659–718. https://doi.org/10.1016/S0883-2927(00)00082-2
Dada, S. S. (2006). Proterozoic evolution of Nigeria. In O. Oshin (Ed.), The basement complex of nigeria and its mineral resources (A Tribute to Prof. M. A. O. Rahaman) (pp. 29–44). Akin Jinad and Company.
Denutsui, D., Akiti, T. T., Osae, S., Tutu, A. O., Blankson-Arthur, S., Ayivor, J. E., Adu-Kwame, F. N., & Egbi, C. (2012). Leachate characterization and assessment of unsaturated zone pollution near municipal solid waste landfill site at Oblogo Accra-Ghana. Research Journal of Environmental Earth Science, 4(1), 134–141.
Dharmarathne, N., & Gunatilake, J. (2013). Leachate characterization and surface-groundwater pollution at municipal solid waste landfill of Gohagoda, Sri Lanka. International Journal of Scientific Research, 3, 1–7. https://doi.org/10.1016/j.scitotenv.2020.137787
El-Taher, A. (2007). Rare-earth elements in Egyptian granite by instrumental neutron activation analysis. Applied Radiation and Isotopes, 65(4), 458–464. https://doi.org/10.1016/j.apradiso.2006.07.014
Enitan, I. T., Enitan, A. M., Odiyo, J. O., & Alhassan, M. M. (2018). Human health risk assessment of trace metals in surface water due to leachate from the municipal dumpsite by pollution index: A case study from Ndawuse River, Abuja, Nigeria. Open Chemistry, 16(1), 214–227.
Environmental Protection Agency (EPA). (2014). Framework for human health risk assessment to inform decision making framework for human health risk assessment to inform decision making.
Esomonu, P. C., Abanobi, O. C., & Ihejirika, C. E. (2012). Enteric pathogens and diarrhea disease potential of water sources in Ahiazu Mbaise, eastern Nigeria. Journal of Public Health and Epidemiology, 4, 39–43.
Ezeudu, O. B., Agunwanba, J. C., Ugochukwu, C., & Ezeudu, T. S. (2020). Temporal assessment of municipal solid waste management in Nigeria: prospects for circular economy adoption. Reviews on Environmental Health, 36(3), 327–344. https://doi.org/10.1515/reveh-2020-0084
Faure, G. (1998). Principles and applications of geochemistry (2nd ed.). Prentice Hall.
Fernandez, D. S., Puchulu, M. E., & Georgieff, S. M. (2014). Identification and assessment of water pollution as a consequence of a leachate plume migration from a municipal landfill site (Tucuman, Argentina). Environmental Geochemistry and Health, 36, 489–503. https://doi.org/10.1007/s10653-013-9576-1
Filippelli, G. M., Morrison, D., & Cicchella, D. (2012). Urban geochemistry and human health. Elements, 8, 439–444.
Ganiyu, S. A., Badmus, B. S., Oladunjoye, M. A., Aizebeokhai, A. P., & Olurin, O. T. (2015). Delineation of leachate plume migration using electrical resistivity imaging on Lapite Dumpsite in Ibadan, southwestern Nigeria. Geoscience, 5(2), 70–80.
Ganiyu, S. A., Badmus, B. S., Oladunjoye, M. A., Aizebeokhai, A. P., Ozebo, V. C., Idowu, O. A., & Olurin, O. T. (2016). Assessment of groundwater contamination around active dumpsite in Ibadan southwest Nigeria using integrated electrical resistivity and hydrochemical methods. Environmental Earth Science, 75, 643. https://doi.org/10.1007/s12665-016-5463-2
Gerba, C. P., Tamimi, A. H., Pettigrew, C., Weisbrod, A. V., & Rajagopalan, V. (2011). Sources of microbial pathogens in municipal solid waste landfills in the United State of America. Waste Management and Research, 29(8), 781–790.
Giang, N. V., Kochanek, K., Vu, N. T., & Duan, N. B. (2018). Landfill leachate assessment by hydrological and geophysical data: Case study of NamSon, Hanoi, Vietnam. Journal of Material Cycle and Waste Management, 20, 1648–1662. https://doi.org/10.1007/s10163-018-0732-7
Grisey, E., Belle, E., Dat, J., Mudry, J., & Aleya, L. (2010). Survival of pathogenic and indicator organisms in groundwater and landfill leachate through coupling bacteria enumeration with tracer test. Desalination, 261, 162–168. https://doi.org/10.1016/j.desal.2010.05.007
Guerrero-Rodríguez, D., Sánchez-Yáñez, J. M., Buenrostro-Delgado, O., & Márquez-Benavides, L. (2014). Phytotoxic effect of landfill leachate with different pollution indexes on common bean. Water, Air and Soil Pollution, 225, 1–7. https://doi.org/10.1007/s11270-014-2002-1
Hamzah, U., Jeeva, M., & Ali, N. A. M. (2014). Electrical resistivity technique and chemical analysis in the study of leachate migration at Sungai Sedu landfill. Asian Journal of Applied Sciences, 7, 518–535. https://doi.org/10.3923/ajaps.2014.518.535
Han, D., Tong, X., Currell, M. J., Cao, G., Jin, M., & Tong, C. (2014). Evaluation of the impact of an uncontrolled landfill on surrounding groundwater quality, Zhoukou, China. Journal of Geochemical Exploration, 136, 24–39. https://doi.org/10.1016/j.gexplo.2013.09.008
Huang, L., Zhu, S., Zhou, H., & Qu, L. (2005). Molecular phylogenetic diversity of bacteria associated with the leachate of a closed municipal solid waste landfill. FEMS Letters, 242, 297–303. https://doi.org/10.1016/j.femsle.2004.11.021
Hussein, M., Yoneda, K., Zaki, Z. M., Othman, N., & Amir, M. 2019. Leachate characterizations and pollution indices of active and closed unlined landfills in Malaysia. Environmental Nanotechnology, Monitoring & Management,12, 100232. https://doi.org/10.1016/j.enmm.2019.100232.
Jabari, L., Gannoun, H., Khelifi, E., Cayol, J. L., Godon, J. J., Handi, M., & Fardeau, M. L. (2016). Bacterial ecology of abattoir wastewater treated by an anaerobic digester. Brazilian Journal of Microbiology, 47(1), 73–84. https://doi.org/10.1016/j.bjm.2015.11.029
Kale, S. S., Kadam, A. K., Kumar, S., & Pawar, N. J. (2010). Evaluating pollution potential of leachate from landfill site from the Pune metropolitan city and its impact on shallow basaltic aquifer. Environmental Monitoring and Assessment, 162, 327–346. https://doi.org/10.1007/s10661-009-0799-7
Kausar, R., & Ahmed, Z. (2009). Determination of toxic inorganic elements pollution in ground water of Kahuta Industrial Triangle Islamahad, Pakistan using ICP-MS. Environmental Monitoring and Assessment, 157, 347–354. https://doi.org/10.1007/s10661-008-0539-4
Kavcar, P., Sofuoglu, A., & Sofuoglu, S. C. (2009). A health risk assessment for exposure to trace metals via drinking water ingestion pathway. International Journal of Hygiene and Environmental Health, 212(2), 212–227. https://doi.org/10.1016/j.ijheh.2008.05.002
Kehew, A. E. (2001). Applied chemical hydrogeology (p. 368). Prentice Hall.
Kjeldsen, P., Barlaz, M. A., Rooker, A. P., Baun, A., Ledin, A., & Christensen, T. H. (2002). Present and long term composition of MSW landfill leachate: A review. Critical Reviews in Environmental Science and Technology, 32, 297–336.
Koh, E., Kaown, D., Kim, H. J., Lee, K., Kim, H., & Park, S. (2019). Nationwide groundwater monitoring around infectious disease-caused livestock mortality burials in Korea: Superimposed influence of animal leachate on pre-existing anthropogenic pollution. Environmental International, 129, 376–388. https://doi.org/10.1016/j.envint.2019.04.073
Krishnamurthi, S., & Chakrabarti, T. (2013). Diversity of bacteria and archaea from a landfill in Chandigarh, India is revealed by culture dependent and culture-independent molecular approaches. Systematic Applied Microbiology, 36, 56–68. https://doi.org/10.1016/j.syapm.2012.08.009
Krystosik, A., Njoroge, G., Odhiambo, L., Forsyth, J. E., Mutuku, F., & LaBeaud, A. D. (2020). Solid wastes provide breeding sites, burrows, and food for biological disease vectors, and urban zoonotic reservoirs: A call to action for solutions-based research. Frontiers in Public Health, 7, 405. https://doi.org/10.3389/fpubh.2019.00405
Kumar, D., & Alappat, B. J. (2005). Analysis of leachate pollution index and formulation of sub-leachate pollution indices. Waste Management Research, 23, 230–239. https://doi.org/10.1177/0734242X05054875
Li, P., Wu, J., Qian, H., Zhang, Y., Yang, N., Jing, L., & Yu, P. (2016). Hydrogeochemical characterization of groundwater in and around a wastewater irrigated forest in the southeastern edge of the Tengger Desert, Northwest China. Exposure and Health, 8, 331–348. https://doi.org/10.1007/s12403-016-0193-y
Li, X., Liu, L., Wang, Y., Luo, G., Chen, X., Yang, X., Hall, M. H. P., Guo, R., Wang, H., Cui, J., & He, X. (2013). Heavy metal contamination of urban soil in an old industrial city (Shenyang) in Northeast China. Geoderma, 192, 50–58. https://doi.org/10.1016/j.geoderma.2012.08.011
Lloyd, J. W., & Healthcote, J. A. (1985). Natural inorganic hydrochemistry in relation to ground water: An introduction. Clarendon Press.
Lyons, W. B., & Harmon, R. S. (2012). Why urban geochemistry? Elements, 8, 417–422.
Machado, I., Falchi, L., Buhl, V., & Manay, N. (2020). Arsenic levels in groundwater and its correlation with relevant inorganic parameters in Uruguay: A medical geology perspective. Science of the Total Environment, 721, 137787.
McBean, E. A., Rovers, F. A., & Farquhar, G. J. (1995). Solid waste landfill engineering and design (p. 521). Prentice Hall.
Mohamed, M. A., Terao, H., Suzuki, R., Babiker, I. S., Ohta, K., & Kaori, K. (2003). Natural denitrification in the Kakamigahara groundwater basin, Gifu prefecture, central Japan. Science of the Total Environment, 307(1–3), 191–2001. https://doi.org/10.1016/S0048-9697(02)00536-3
Mor, S., Ravindra, K., Dahiya, R. P., & Chandra, A. (2006). Leachate characterization and assessment of groundwater pollution near landfill site. Environmental Monitoring and Assessment, 118, 435–456.
Mosuro, G. O., Omosanya, K. O., Bayewu, O. O., Oloruntola, M. O., Laniyan, T. A., Atobi, O., Okubena, M., Popoola, E., & Adekoy, F. (2017). Assessment of groundwater vulnerability to leachate infiltration using electrical resistivity method. Applied Water Science, 7, 2195–2207. https://doi.org/10.1007/s13201-016-0393-4
National Population Commission (NPC). (2006). National Population Commission of Nigeria. www. population.gov.ng. NSDWQ.
Naveen, B. P., Mahapatra, D. M., Sitharam, T. G., Sivapullaiah, P. V., & Ramachandra, T. V. (2017). Physicochemical and biological characterization of urban municipal landfill leachate. Environmental Pollution, 220, 1-12. https://doi.org/10.1016/j.envpol.2016.09.002
Naveen, B. P., Sivapullaiah, P. V. and Sitharam, T. G. (2014). Characteristics of a municipal solid waste landfill leachate. In Proceedings of Indian Geotechnical Conference IGC, Kakinada, India (pp. 1–7). https://doi.org/10.13140/2.1.4972.4489
Niloufer, S., Swamy, A. V. V. S., & Davi, K. S. (2013). Impact of municipal solid waste on the groundwater quality in Vijayawada city, Andhra Pradesh. Indian Journal of Applied Research, 3(4), 1–3.
Ohwoghere-Asuma, O., & Aweto, K. E. (2013). Leachate characterization and assessment of groundwater and surface water qualities near municipal solid waste dump site in Effurun, Delta State. Journal of Environment and Earth Science, 3(9), 126–135.
Oketola, A. A., & Akpotu, S. O. (2015). Assessment of solid waste and dumpsite leachate and topsoil. Chemistry and Ecology, 31(2), 134–146. https://doi.org/10.1080/02757540.2014.907280
Oladunjoye, M. A., Olayinka, A. I., & Amidu, S. A. (2011). Geo-electrical imaging at an abandoned waste dumpsite in Ibadan, southwestern Nigeria. Journal of Applied Sciences, 11, 3755–3764. https://doi.org/10.3923/jas.2011.3755.3764
Olobaniyi, S. B., Ogala, J. E., & Nfor, N. B. (2007). Hydrogeochemical and bacteriological investigation in Agbor area, southern Nigeria. Journal of Mining and Geology, 43(1), 79–89. https://doi.org/10.4314/jmg.v43i1.18867
Ostad-Ali-askari, K., & Shayan, M. (2021). Subsurface drain spacing in the unsteady conditions by HYDRUS-3D and artificial neutral networks. Arabian Journal of Geoscience, 14, 1936.
Ostad-Ali-Askari, K., Shayannejad, M., & Ghorbanizadeh-Kharazi, H. (2016). Artificial neutral network for modeling nitrate pollution of groundwater in marginal area of Zayandeh-rood River, Isfahan, Iran. KSCE Journal of Civil Engineering, 21, 134.
Pandey, P. K., Kass, P. H., Soupir, M. L., Biswas, S., & Singh, V. P. (2014). Contamination of water resources by pathogenic bacteria. AMB Express, 4, 51. https://doi.org/10.1186/s13568-014-0051-x
Parvin, F., & Tareq, S. M. (2021). Impact of landfill leachate contamination on surface and groundwater of Bangladesh: A systematic review and possible public health risks assessment. Applied Water Science, 11, 100. https://doi.org/10.1007/s13201-021-01431-3
Podschun, R., Pietsch, S., Holler, C., & Ullmann, U. (2001). Incidence of Klebsiella species in surface water and their expression of virulence factors. Applied Environmental Microbiology, 67(7), 3325–3327. https://doi.org/10.1128/AEM.67.7.3325-3327.2001
Pujari, P. R., Pardhi, P., Muduli, P., Harkare, P., & Nanoti, M. V. (2007). Assessment of pollution near landfill site in Nagpur, India by resistivity imaging and GPR. Environmental Monitoring and Assessment, 131, 489–500.
Rahaman, M. A. (1988). Recent advances in the study of the Basement Geology of Nigeria. In P. O. Oluyide, W. C. Mbonu, A. E. Ogezi, A. C. Egbuniwe, A. C. Ajibade, & A. C. Umeji (Eds.), Precambrian geology of Nigeria (pp. 157–163). Geological Survey of Nigeria Special Publication.
Raman, N., & Narayanan, D. S. (2008). Impact of solid waste effect on groundwater and soil quality nearer to Pallavaram solid waste landfill site in Chennai. Rasayan Journal of Chemistry, 1(4), 828–836.
Rollison, H. R., & Pease, V. (2021). Using geochemical data to understanding geological processes (2nd ed., p. 346). Cambridge University Press.
Rusydi, A. F. (2018). Correlation between conductivity and total dissolved solid in various type of water: A review. Earth and Environmental Science, 118, 012019. https://doi.org/10.1088/1755-1315/118/1/012019
Salman, S. A., Asmoay, A., El-Gohary, A., & Sabet, H. (2019). Evaluation of human risks of surface water and groundwater contaminated with Cd and Pb in the southern ElMinya Governorate, Egypt. Drinking Water Engineering and Science, 12, 23–30. https://doi.org/10.5194/dwes-12-23-2019
Sawamura, H., Yamada, M., Endo, K., Soda, S., Ishigaki, T., & Ike, M. (2010). Characterization of microorganisms at different landfill depths using carbon-utilization pattern and 16S rRNA gene based T-RFLP. Journal of Bioscience and Bioengineering, 109, 130–137. https://doi.org/10.1016/j.jbiosc.2009.07.020
Shanker, A. S., Vootla, P. K., & Pindi, P. K. (2020). Exploration of coliform diversity in drinking water resources by culture independent approaches. Journal of Water, Sanitation and Hygiene for Development, 10(3), 580–588.
Slack, R. J., Gronow, J. R., & Voulvoulis, N. (2005). Household hazardous waste in municipal landfills: Contaminants in leachate. Science of the Total Environment, 337, 119–137. https://doi.org/10.1016/j.scitotenv.2004.07.002
Song, L., Wang, Y., Tang, W., & Lei, Y. (2015). Bacterial community diversity in municipal waste landfill sites. Applied Microbiology and Biotechnology, 99, 7745–7756. https://doi.org/10.1007/s00253-015-6633-y
Sun, X., Xu, Y., Liu, Y., Nai, C., Dong, L., Liu, J., & Huang, Q. (2019). Evolution of geomembrane degradation and defects in a landfill: Impacts on long-term leachate leakage and groundwater quality. Journal of Cleaner Production, 224, 335–345. https://doi.org/10.1016/j.jclepro.2019.03.200
Tatsi, A. A., & Zouboulis, A. I. (2002). A field investigation of the quantity and quality of leachate from a municipal solid waste landfill in a Mediterranean climate (Thessaloniki, Greece). Advances in Environmental Research, 6, 207–219. https://doi.org/10.1016/S1093-0191(01)00052-1
Teta, C., & Hikwa, T. (2017). Heavy Metal Contamination of Ground Water from an Unlined Landfill in Bulawayo, Zimbabwe. Journal of Health and Pollution, 7(15), 18–27. https://doi.org/10.5696/2156-9614-7.15.18
United State Environmental Protection Agency (USEPA). (1992). Guidelines for Exposure Assessment. (EPA/600/z-92/001). US Environmental Protection Agency Risk Assessment Forum, Washington, DC.
United Nations Environmental Protection (UNEP). (2013).Guidelines for national waste management strategies. Moving from challenges to opportunities ISBN 978-92-807-3333-4.
United State Environmental Protection Agency (USEPA). (2014). Framework for human health risk assessment to inform decision making framework for human health risk assessment to inform decision making. https://doi.org/10.1504/IJRAM.2017.082558.
USEPA. (1989). Risk assessment. https://www.epa.gov/risk. Date Accessed 04/08/2021.
Vasudevan, U., Gantayat, R. R., Chidambaram, S., et al. (2021). Microbial contamination and its associations with major ions in shallow groundwater along coastal Tamil Nadu. Environmental Geochemistry and Health, 43, 1069–1088. https://doi.org/10.1007/s10653-020-00712-1
Vereecken, H., Binley, A., Cassiani, G., Revil, A., & Titov, K. (2006). Applied hydrogeophysics. In H. Vereecken, A. Binley, G. Cassiani, A. Revil, & K. Titov (Eds.), Applied hydrogeophysics (pp. 1–8). Springer.
Wang, Z., Su, Q., Wang, S., Gao, Z., & Liu, J. (2021). Spatial distribution and health risk assessment of dissolved heavy metals in groundwater of eastern China coastal zone. Environmental Pollution, 290, 1–11. https://doi.org/10.1016/j.envpol.2021.118016
Webber, R., Watson, A., Forter, M., & Oliael, F. (2011). Persistent organic pollutants and landfills: A review of past experiences and future challenges. Waste Management and Research, 29, 107–121. https://doi.org/10.1177/0734242X10390730
Wong, C. I., Sharp, J. M., Hauwert, N., Landrum, J., & White, K. M. (2012). Impact of urban development on physical and chemical hydrogeology. Elements, 8, 429–434. https://doi.org/10.2113/gselements.8.6.429
World Health Organization (WHO). (2017). Guidelines for drinking-water quality: Fourth edition incorporating the first addendum (p. 541). World Health Organization.
Xie, B., Xiong, S., Liang, S., Hu, C., Zhang, X., & Lu, J. (2012). Performance and bacterial compositions of aged refuse reactors treating mature landfill leachate. Bioresource Technology, 103, 71–77. https://doi.org/10.1016/j.biortech.2011.09.114
Acknowledgements
The authors are sincerely grateful to the Institute of Hygiene and Public Health, University of Bonn, Germany, for analysing the elemental components of the leachate samples. The efforts of Mr. Andrew K. Akingbesote and Mr. Sunday O. Aromolaran are highly appreciated for assisting with the fieldwork survey carried out in this work, and the contributions of Dr J. A. Aladejana and Abraham Remilekun Adeniyi, for the statistical analyses are gratefully acknowledged.
Funding
No funding was received for this research work and preparation of manuscript.
Author information
Authors and Affiliations
Contributions
Aromolaran OK and Aromolaran O conceptualized and designed the study, carried out the field study, data collection and analyses, and wrote the manuscript. Faleye TE contributed to the field study, data collection, and wrote part of the manuscript. Faerber H analysed part of the data and reviewed the manuscript. All authors approved the final manuscript.
Corresponding author
Ethics declarations
Conflicts of interest
The authors declare no conflict of interest.
Ethical approval
Not applicable in this study.
Consent to participate
This study does not contain any studies on humans or animals.
Additional information
Publisher's Note
Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.
Rights and permissions
Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.
About this article
Cite this article
Aromolaran, O.K., Aromolaran, O., Faleye, E.T. et al. Environmental impacts of an unlined municipal solid waste landfill on groundwater and surface water quality in Ibadan, Nigeria. Environ Geochem Health 45, 3585–3616 (2023). https://doi.org/10.1007/s10653-022-01437-z
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s10653-022-01437-z