Earthworm Biomass as Additional Information for Risk Assessment of PCBs: A Case Study of Olusosun Dumpsite, Ojota, Lagos, Nigeria
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American Journal of Life Science
This study assessed the level of Polychlorinated biphenyls (PCBs) concentrations and the biochemical parameters in earthworms (E. eugeniae) as well as histopathological effects in the clitellium of earthworms (E. eugeniae) present in Olusosun dumpsite which is the largest dumpsite in Lagos and University of Lagos, a major higher institution located in Lagos, Nigeria. The earthworms were sampled from two different sites in each location and taken to the laboratory for PCBs, biochemical and histopathological analyses. The level of concentration of PCBs in earthworms found in Unilag was significantly higher than the level observed in Olusosun dumpsite. With respect to the biochemical analysis carried out on the clitellum of the earthworm samples collected from Olusosun dumpsite, Malondialdehyde (MDA), Superoxide dismutase activity (SOD) and GST had higher levels when compared with the sample collected from the University of Lagos study site (non-dump site). High levels of Glutathione content (GSH) and Catalase activities (CAT) were only recorded in earthworms from the Unilag sample when also compared with the sample from Olusosun study site. The activities of the enzymes, superoxide dismutase (SOD) and catalase were inhibited in Unilag sample. Histopathological assessments of the clitellium indicated that the major effect observed were increased secretory activity, reduced body mass and disorganized internal organ in the earthworms from Unilag. The implication of the findings in the earthworms from Olusosun dumpsite and University of Lagos are hereby discussed.
PCBs , Olusosun Dumpsite , Earthworms , Histopathological Assessment , Glutathione , Research Subject Categories::NATURAL SCIENCES::Chemistry
Rose, A., Akinsanya, B., Erhabor-Chimezie, M., & Nwude, D. (2017). Earthworm Biomass as Additional Information for Risk Assessment of PCBs: A Case Study of Olusosun Dumpsite, Ojota, Lagos, Nigeria. American Journal of Life Sciences, Vol.5(3-1), 52-59pp.