Bioaccumulation of organochlorine pesticide residues in fish and invertebrates of Lagos Lagoon, Nigeria

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dc.contributor.authorAlani, R.
dc.contributor.authorDrouillard, K.
dc.contributor.authorOlayinka, K.
dc.contributor.authorAlo, B.
dc.date.accessioned2019-10-04T10:49:30Z
dc.date.available2019-10-04T10:49:30Z
dc.date.issued2013
dc.descriptionStaff publicationsen_US
dc.description.abstractThe rate at which organochlorine pesticides (OCs) are being used in Nigeria is becoming a matter of concern considering the heavy negative health effects associated with these chemicals. OCs are very persistent, bioaccumulative and toxic, and they can easily find their way into an adjacent water course such as the Lagos Lagoon via soil run-off and leaching. The levels of OCs were therefore assessed in water, sediment, invertebrates (crayfish shrimps and crabs) and twelve species of fish, including commercially important fish sold to local markets. Samples were collected and analyzed using Gas chromatography/ Mass selective Detector (GC/MSD). The most bioaccumulated OCs in the fish were beta-HCH (22.72-0.90ng/g d. w.) and p,p’DDE (16.04-0.44ng/g d. w.). The most bioaccumulative OCs in the invertebrates were still beta-HCH (24.50-16.10ng/g d. w.) and p,p’DDE (22.20-1.85ng/g d. w.). The sum OCs of 55.22 ng/g d. w. in crab eggs, 63.90ng/g d. w. in agaza (Caranx hippos), and 69.40ng/g d. w. in young blue crabs (Callinectus amnicola) revealed these biota as the most contaminated. Spatial patterns of contaminant accumulation were contrasted between environmental media and biological samples and a risk model for human exposures of organochlorine pesticides due to consumption of contaminated fish and invertebrates is presented.en_US
dc.identifier.citationAlani, R., Drouillard, K., Olayinka, K., & Alo, B. (2013). Bioaccumulation of organochlorine pesticide residues in fish and invertebrates of Lagos Lagoon, Nigeria. American Journal of Scientific and Industrial Research, Vol.4, 22-30pp.en_US
dc.identifier.issn2153-649X
dc.identifier.urihttps://ir.unilag.edu.ng/handle/123456789/6244
dc.language.isoenen_US
dc.publisherAmerican Journal of Scientific and Industrial Researchen_US
dc.relation.ispartofseriesAmerican Journal of Scientific and Industrial Research;Vol.4
dc.subjectEcological risk assessmenten_US
dc.subjectOCsen_US
dc.subjectFishesen_US
dc.subjectInvertebratesen_US
dc.subjectLagos lagoonen_US
dc.subjectResearch Subject Categories::NATURAL SCIENCES::Chemistryen_US
dc.titleBioaccumulation of organochlorine pesticide residues in fish and invertebrates of Lagos Lagoon, Nigeriaen_US
dc.typeArticleen_US
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