Levels of Organochlorine Pesticide Residues in Biotic Components of the Lagos Lagoon, Nigeria

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dc.contributor.authorAlani, R.A
dc.contributor.authorOladapo, T.S
dc.date.accessioned2019-02-26T14:25:09Z
dc.date.available2019-02-26T14:25:09Z
dc.date.issued2015
dc.descriptionJournal Articlesen_US
dc.description.abstractHigh concentrations of organochlorine pesticides (OCs) in a marine environment such as the Lagos Lagoon demands great attention since this Lagoon serves as a major source of sea foods to the people of lagos and its environs. This work examined the levels of OCs in both biotic and abiotic components of Lagos Lagoon. Surface water, sediment, zooplankton, phytoplankton, benthic invertebrates and fishes from four locations on Lagos lagoon were analysed for OCs using gas chromatograph equipped with Ni Electron capture detector. The concentrations were as follows: sum BHC (Benzene Hexachloride) 1777.80µg/kg, heptachlor epoxide (1134.39µg/kg), sum DDT (Dichloro Diphenyl Trichloroethane) 207.13µg/kg, methoxychlor 85.43µg/kg, chlorothalonil 83.84µg/kg, heptachlor 69.89µg/kg, aldrin 223.87µg/kg, endosulfan1 11.09µg/kg, di-eldrin 46.50µg/kg, endosulfan2 16.59µg/kg, endrin 16.23µg/kg endosulfan sulfate 3.95µg/kg, γ-cyhalothrin 53.65µg/kg. The high concentrations of DDT and BHC suggested their recent usage in the study area or recent transport through rivers and canals that discharge into the lagoon. Sediment was found to have the highest percentage OCs of 78.08%, water had the lowest of only 0.09%, phytoplankton/zooplankton had 5.09%, benthic invertebrate had 8.76% and fishes 7.97%. The percentage distribution indicated the level of transfer as the OCs biomagnified along the aquatic food webs from lower tropic level to higher tropic level.en_US
dc.description.sponsorshipTertiary Education Trust Funden_US
dc.identifier.citationAlani, R.A, and Oladapo, T.S (2015). Levels of Organochlorine Pesticide Residues in Biotic Components of the Lagos Lagoon, Nigeria. Unilag Journal of Medicine, Science and Technology, Vol.3(2), 52-65p.en_US
dc.identifier.issn2408-5049
dc.identifier.urihttps://ir.unilag.edu.ng/handle/123456789/3847
dc.language.isoenen_US
dc.publisherUniversity of Lagos Press, Akokaen_US
dc.relation.ispartofseriesUniversity of lagos Journal;Vol.3(2)
dc.subjectLagos lagoonen_US
dc.subjectOrganochlorine pesticidesen_US
dc.subjectBiotic and abiotic componentsen_US
dc.subjectHuman Healthen_US
dc.titleLevels of Organochlorine Pesticide Residues in Biotic Components of the Lagos Lagoon, Nigeriaen_US
dc.typeArticleen_US
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Volume 3, Issue 2, 2015