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

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

Sci. Total Environ. 454-455, 528-533 (2013)
DOI PMC
Surface sediments (<60cm) from the Napoleon Gulf and Thurston Bay on the northern shore of Lake Victoria were analyzed for polychlorinated dibenzo-p-dioxins (PCDDs), polychlorinated dibenzofurans (PCDFs) and dioxin-like polychlorinated biphenyls (dl-PCBs). Fifteen PCDD/Fs and eleven dl-PCBs were found in 75.5% of the samples. The maximum concentrations of PCDD/Fs and dl-PCBs were 44.1 and 136pgg(-1) dry weight (dw), respectively. Octachlorodibenzo-p-dioxin was the predominant PCDD/F congener at the Napoleon Gulf and Thurston Bay area. Regarding the dl-PCBs, a variation in levels was observed between the mono-ortho PCBs and non-ortho PCBs, with the former having higher levels than the latter. The PCDD/F and dl-PCB levels, in the sediments of Napoleon Gulf, which is near urban centers and industrial areas were markedly higher (α≤0.05) than those from the Thurston Bay, which is offshore, suggesting that human activities could be sources of the pollutants to the surrounding water resources. World Health Organization-toxic equivalency quotients (WHO-TEQs) lay in the range of 0.07-5.53pgg(-1) dw for PCDD/Fs and 0.01-0.23pgg(-1) dw for dl-PCBs. 23.1% of samples from the Napoleon Gulf had their results above the set WHOPCDD/Fs-TEQ value.
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Publikationstyp Artikel: Journalartikel
Dokumenttyp Wissenschaftlicher Artikel
Korrespondenzautor
Schlagwörter Polychlorinated dibenzo-p-dioxons; Polychlorinated dibenzofurans; Dioxin-like polychlorinated biphenyls; Sediments; Lake Victoria; Dibenzo-p-dioxins ; Polychlorinated-biphenyls ; Aromatic-hydrocarbons ; Breast-milk ; Air ; Degradation ; China ; Pahs ; Combustion ; Deposition
ISSN (print) / ISBN 0048-9697
e-ISSN 1879-1026
Zeitschrift Science of the Total Environment, The
Quellenangaben Band: 454-455, Heft: , Seiten: 528-533 Artikelnummer: , Supplement: ,
Verlag Elsevier
Nichtpatentliteratur Publikationen
Begutachtungsstatus Peer reviewed
Institut(e) PPM-MEX-Molecular EXposomics (MEX)