Fuzzy comprehensive assessment of metal contamination of water and sediments in Ondo Estuary, Nigeria

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dc.contributor.authorAdebowale, K.O.
dc.contributor.authorAgunbiade, F.O.
dc.contributor.authorOlu-owolabi, B.I.
dc.date.accessioned2019-08-29T10:26:34Z
dc.date.available2019-08-29T10:26:34Z
dc.date.issued2008
dc.descriptionStaff Publicationsen_US
dc.description.abstractA more reliable methodology for evaluating metal contamination of coastal water and sediments using fuzzy comprehensive assessment (FCA) is presented by this study. Ten metals (As, Cd, Cu, Cr, Fe, Mn, Ni, Pb, V and Zn) were investigated in water and sediments from ten sampling sites and formulated into fuzzy matrix based on three contamination classifications of pristine, moderately enriched and extremely impacted categories using regulatory limits as criteria. The products of the matrices from membership function of the observed data and the weight matrices generate indices that classify the degree of metal impact on the sites. The results of the FCA show that the estuary is negatively impacted by metals in a range of 45.5–75.1% membership in the extremely impacted category with potential adverse effects on the ecosystem of the neighbouring Atlantic Ocean. The crude oil exploration activity at site 1 is the major source input of the metals beside Fe and Mn which are natural to the geological structure of the area while domestic waste discharges contribute notably to metal contamination in some sites.en_US
dc.identifier.citationAdebowale, K. O., Agunbiade, F. O., & Olu-Owolabi, B. I. (2008). Fuzzy comprehensive assessment of metal contamination of water and sediments in Ondo Estuary, Nigeria. Chemistry and Ecology, 24(4), 269-283.en_US
dc.identifier.urihttps://ir.unilag.edu.ng/handle/123456789/4854
dc.language.isoenen_US
dc.publisherTaylor and Francisen_US
dc.subjectfuzzy comprehensive assessmenten_US
dc.subjectmetalsen_US
dc.subjectOndo estuaryen_US
dc.subjectsedimentsen_US
dc.subjectcrude oil explorationen_US
dc.subjectResearch Subject Categories::NATURAL SCIENCES::Chemistryen_US
dc.titleFuzzy comprehensive assessment of metal contamination of water and sediments in Ondo Estuary, Nigeriaen_US
dc.typeArticleen_US
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