Assessment of Groundwater Quality in a Typical Rural Settlement in Southwest Nigeria

I. M. Adekunle, M. T. Adetunji, A. M. Gbadebo and O. B. Banjoko
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I. M. Adekunle: Department of Environmental Management and Toxicology, University of Agriculture Abeokuta, P.M.B. 2240, Nigeria
M. T. Adetunji: Department of Soil Science and Land Management, University of Agriculture Abeokuta, P.M.B 2240, Nigeria
A. M. Gbadebo: Department of Environmental Management and Toxicology, University of Agriculture Abeokuta, P.M.B. 2240, Nigeria
O. B. Banjoko: Department of Environmental Management and Toxicology, University of Agriculture Abeokuta, P.M.B. 2240, Nigeria

IJERPH, 2007, vol. 4, issue 4, 1-12

Abstract: In most rural settlements in Nigeria, access to clean and potable water is a great challenge, resulting in water borne diseases. The aim of this study was to assess the levels of some physical, chemical, biochemical and microbial water quality parameters in twelve hand – dug wells in a typical rural area (Igbora) of southwest region of the country. Seasonal variations and proximity to pollution sources (municipal waste dumps and defecation sites) were also examined. Parameters were determined using standard procedures. All parameters were detected up to 200 m from pollution source and most of them increased in concentration during the rainy season over the dry periods, pointing to infiltrations from storm water. Coliform population, Pb, NO 3 - and Cd in most cases, exceeded the World Health Organization recommended thresholds for potable water. Effect of distance from pollution sources was more pronounced on fecal and total coliform counts, which decreased with increasing distance from waste dumps. The qualities of the well water samples were therefore not suitable for human consumption without adequate treatment. Regular monitoring of groundwater quality, abolishment of unhealthy waste disposal practices and introduction of modern techniques are recommended.

Keywords: Groundwater; pollution; rural settlement; Southwest Nigeria (search for similar items in EconPapers)
JEL-codes: I I1 I3 Q Q5 (search for similar items in EconPapers)
Date: 2007
References: View complete reference list from CitEc
Citations: View citations in EconPapers (7)

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