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Ssebugere, P.* ; Kiremire, B.T.* ; Henkelmann, B. ; Bernhöft, S. ; Kasozi, G.N.* ; Wasswa, J.* ; Schramm, K.-W.

PCDD/Fs and dioxin-like PCBs in fish species from Lake Victoria, East Africa.

Chemosphere 92, 317-321 (2013)
DOI PMC
Open Access Gold as soon as Publ. Version/Full Text is submitted to ZB.
Two commercially important fish species, Nile perch gates niloticus) and Nile tilapia (Oreochromis niloticus) belonging to different trophic levels were collected from the Napoleon Gulf and Thurston Bay in Lake Victoria. Polychlorinated dibenzo-p-dioxins (PCDDs), polychlorinated dibenzofurans (PCDFs) and dioxinlike polychlorinated biphenyls (dl-PCBs) were extracted from the fish muscles and livers using the C-13 isotope dilution method, followed by multiple column chromatography clean-up. Analysis was achieved by a high resolution gas chromatography coupled with a high resolution mass spectrometer. The concentrations of analytes ranged from 0.07 to 0.59 pg g-, fresh weight (fw) and 0.3-19.0 pg g(-1) in L. niloticus and 0.06-0.18 and 0.2-15.7 pg g(-1) in 0. niloticus, for Sigma PCDD/Fs and Edl-PCBs, respectively. Differences in congener concentrations were observed between the two fish species and study sites, and this was attributed to differences in feeding habits and trophic levels. World Health Organization-toxic equivalents (WHO-TEQs) were in the range 0.01-0.16 pg TEQg(-1) for the PCDD/Fs and 0.001-0.74 pg TEQg(-1) for the dl-PCBs. The TEQ values in the present study were lower compared to those of most fish samples reported in literature and were within permissible levels recommended by the European Union, implying that the fish was fit for human consumption.
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Publication type Article: Journal article
Document type Scientific Article
Keywords Pcdd/fsil ; Di-pcbs ; Lates Niloticus ; Oreochromis Niloticus ; Lake Victoria; Dibenzo-p-dioxins ; Fresh-water Fish ; Polychlorinated-biphenyls ; Dietary-intake ; Coplanar-pcbs ; Seafood ; China ; Pcdfs ; Bay ; Pcdd/pcdfs
ISSN (print) / ISBN 0045-6535
e-ISSN 1879-1298
Journal Chemosphere
Quellenangaben Volume: 92, Issue: 3, Pages: 317-321 Article Number: , Supplement: ,
Publisher Elsevier
Publishing Place Kidlington, Oxford
Reviewing status Peer reviewed
Institute(s) PPM-MEX-Molecular EXposomics (MEX)