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Application of Very Low Frequency Eletromagnetic and Hydro-Physicochemical Methods in The Investigation of Groundwater Contamination at Aarada Waste Disposal Site, Ogbomoso, Southwestern Nigeria.

Olafisoye, Emmanuel Rotimi and Sunmonu, L. A. and Ojoawo, I. A. and Adagunodo, T. A. and Oladejo, Olagoke Peter (2012) Application of Very Low Frequency Eletromagnetic and Hydro-Physicochemical Methods in The Investigation of Groundwater Contamination at Aarada Waste Disposal Site, Ogbomoso, Southwestern Nigeria. Australian Journal of Basic and Applied Sciences, 6 (8). pp. 401-409. ISSN 1991-8178

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Abstract

Groundwater contamination both in rural and urban area is growing alarming in Nigeria today. Some people ignorantly believe infiltration must take place before the refuse been dumped on topsoil reached the water table in the subsurface without taking into consideration depth to the aquifer and flow of underground water. This has necessitated this research about investigation of groundwater contamination around the waste disposal site at Aarada in Ogbomoso, Oyo State, Nigeria. The study was conducted using Very Low Frequency Electromagnetic (VLF-EM) and hydro-physicochemical methods. A total of twelve VLF-EM profiles were carried out with length ranging between 50 to 130m. The hydro-physicochemical analysis was conducted at the peak of the dry season on nine water samples taken from nine different hand-dug wells in the research area. The result obtained from the processed VLF-EM data revealed the presence of leachate (contaminant fluid) at the subsurface in the area. The water quality analysis report showed hazardously high values of Fe2+, Pb2+, Zn2+, Cu2+ and NO3- to confirm the findings from the VLF-EM survey. Conclusively, the study reveals that domestic usage of water from hand-dug well in the investigated area without undergoing water treatment is very hazardous. Oyo State Government should enforce law against dumping of refuse in that area, or if the place would continue to be used for dumpsite, Government should evacuate people living within the dumpsite in order not to be contacted with water borne diseases.

Item Type: Article
Uncontrolled Keywords: groundwater, leachate plume, contaminants, health hazard, electromagnetic).
Subjects: Q Science > Q Science (General)
Q Science > QC Physics
Divisions: Faculty of Engineering, Science and Mathematics > School of Physics
Depositing User: Mrs Hannah Akinwumi
Date Deposited: 17 Jan 2018 10:14
Last Modified: 17 Jan 2018 10:14
URI: http://eprints.covenantuniversity.edu.ng/id/eprint/10052

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