Multivariate analysis of potentially toxic metals in sediments of a tropical coastal lagoon

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dc.contributor.authorOyeyiola, A. O.
dc.contributor.authorDavidson, C. M.
dc.contributor.authorOlayinka, K. O.
dc.contributor.authorOluseyi, T. O.
dc.contributor.authorAlo, B. I.
dc.date.accessioned2019-08-24T03:24:20Z
dc.date.available2019-08-24T03:24:20Z
dc.date.issued2012-05-25
dc.description.abstractSurface sediments collected from the Lagos Lagoon, Nigeria, and three adjoining rivers were analysed for their physicochemical properties and pseudo-total concentration of the potentially toxic metals (PTM) Cd, Cr, Cu, Pb and Zn. The concentration of the PTM varied seasonally and spatially. Odo-Iyaalaro was observed to be the most polluted river, with highest concentrations of 42.1 mg kg−1, 102 mg kg−1, 185 mg kg−1, 154 mg kg−1 and 1040 mg kg−1 of Cd, Cr, Cu, Pb and Zn, respectively, while Ibeshe River was the least contaminated, apart from a site affected by Cu from the textile industry. Some of the sediments were found to be above the consensus-based probable effect concentrations and Dutch sediment guideline for metals. Overall metal concentrations were similar to those reported for other tropical lagoon and estuarine systems affected by anthropogenic inputs as a result of rapid urbanisation. Due to the large number of samples, principal component analysis was used to examine relationships within the data set. Generally, sediments collected during the dry season were observed to have higher concentration of PTM than those collected during the rainy season. This means that PTM could accumulate over a prolonged period and then be released relatively rapidly, on an annual basis, into tropical lagoon systems.en_US
dc.identifier.citationOyeyiola, A. O., Davidson, C. M., Olayinka, K. O., Oluseyi, T. O., & Alo, B. I. (2013). Multivariate analysis of potentially toxic metals in sediments of a tropical coastal lagoon. Environmental monitoring and assessment, 185(3), 2167-2177.en_US
dc.identifier.urihttps://ir.unilag.edu.ng/handle/123456789/4671
dc.language.isoenen_US
dc.publisherSpringeren_US
dc.subjectResearch Subject Categories::NATURAL SCIENCES::Chemistry::Analytical chemistry::Separation methodsen_US
dc.subjectLagos Lagoonen_US
dc.subjectPotentially toxic metalsen_US
dc.subjectprincipal component analysisen_US
dc.subjectsedimentsen_US
dc.subjectestuarine systemsen_US
dc.titleMultivariate analysis of potentially toxic metals in sediments of a tropical coastal lagoonen_US
dc.typeArticleen_US
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