Groundwater Quality Assessment for Domestic Uses in the Micro-Geomorphological Units of Lagos, Nigeria

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dc.contributor.authorAyeni, A.O.
dc.contributor.authorSoneye, A.S.O.
dc.date.accessioned2021-10-14T12:48:07Z
dc.date.available2021-10-14T12:48:07Z
dc.date.issued2014
dc.descriptionScholarly articlesen_US
dc.description.abstractThis study focused on physic-chemical and trace metals concentrations in hand dug wells across four micro geomorphological units of Lagos Nigeria. Water samples were collected from 12 selected wells used for domestic purposes in the metropolis between November 2009 and March 2010. Four (4) parameters – pH, EC, DO and salinity were determined with portable pH/conductivity meters, handheld M90 Mettler Toledo AG DO meter and handheld Omega salinity meter respectively. The remaining seven (7) parameters - total dissolved solids (TDS), total hardness (TH), chloride (Cl-), nitrate (NO3-), iron (Fe), manganese (Mn) and zinc (Zn) were determined using atomic spectrophotometer, gravimetric, chlorometric and titrimetric methods. The results reveal that pH levels ranged between 5.2 and 8.2 with mean of 6.4±0.90, EC between 34.0 and 340.0mg/l with mean of 177±121mg/l, DO between 1.7 and 4.0mg/l with mean of 2.6±0.7mg/l, TDS between 5 and 241mg/l with mean of 88.1±95mg/l, TH between 6.3 and 109mg/l with mean of 39.7±27.2mg/l, salinity between 17.0 and 497.0mg/l with mean of 111±168mg/l, Cl- between 3.5 and 55mg/l with mean of 20±19.9 mg/l, NO3- between 7.7 and 62.0mg/l with mean of 26.1±19.6mg/l, Fe between 0.02 and 1.5mg/l with mean of 0.2±0.41mg/l, Mn between 0.02 and 0.2mg/l with mean of 0.1±0.05mg/l, and, Zn between 0.0 and 0.3mg/l with mean of 0.1±0.08mg/l. EC, TDS, TH, salinity, Cl- and Zn concentrations in all sampled wells fall within the WHO recommended limits. NO3- and Fe concentrations ranged above WHO limits in some cases. The results suggest that the variation in concentrations could be attributed to the surrounding geomorphological units except heavy metals which are traced to leachates around landfill areas. Nevertheless, the results of concentration of the analyzed parameters, heavy metals in particular do not follow a significantly identified trend across the geomorphological unitsen_US
dc.identifier.citationAyeni, A. O. and A. S. O. Soneye (2014). Groundwater Quality Assessment for Domestic Uses in the Micro-Geomorphological Units of Lagos, Nigeria, FUTY Journal of the Environment 8 (1): 93-106en_US
dc.identifier.issn1597-8826
dc.identifier.urihttps://ir.unilag.edu.ng/handle/123456789/9623
dc.language.isoenen_US
dc.publisherSchool of Environmental Sciences, Modibbo Adama University of Technology, Yola (FUTY Yola)en_US
dc.subjectGroundwateren_US
dc.subjectphysic-chemicalen_US
dc.subjecttrace metalsen_US
dc.subjectgeomorphic unitsen_US
dc.subjectLagosen_US
dc.subjectResearch Subject Categories::SOCIAL SCIENCESen_US
dc.titleGroundwater Quality Assessment for Domestic Uses in the Micro-Geomorphological Units of Lagos, Nigeriaen_US
dc.typeArticleen_US
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