Polychlorinated biphenyl in fish samples from Lagos Lagoon, Nigeria
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Date
2009
Authors
Adeyemi, D.
UKPO, G.
Anyakora, C.
Unyimadu, J.P.
Journal Title
Journal ISSN
Volume Title
Publisher
AJOL
Abstract
Several fish samples from the Lagos lagoon, Nigeria were analyzed for the presence of polychlorinated
biphenyls (PCBs). The fish species analyzed include Tilapia zilli (red belly Tilapia), Ethmalosa fimbriata
(Bonga shad) and Chrysichthys nigrodigitatus (catfish). Eight PCB congeners were identified and
quantified in muscle of the species analyzed. The concentration of total PCBs in samples ranged from
0.56 to 2.94 ppm. The study shows that concentrations of PCBs were higher in adult than in juvenile of
most of the fish, and there was no correlation between fat content and total concentration of PCBs. The
concentration of PCBs found in fish samples in this study were above the WHO residual limit of 0.2
ppm. The concentration levels in this study were compared with the levels detected in other parts of the
world. The study confirms PCBs persistence in Lagos Lagoon, despite its ban several decades ago.
Description
Scholarly article
Keywords
PCBs , Lagos Lagoon , fish , gas chromatography (GC) , persistent organic pollutants (POPs) , Research Subject Categories::PHARMACY::Pharmaceutical chemistry
Citation
Adeyemi, D., Ukpo, G., Anyakora, C., & Uyimadu, J. (2009). Polychlorinated biphenyl in fish samples from Lagos Lagoon, Nigeria. African Journal of Biotechnology, 8(12).