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- W2767242242 abstract "The distribution and concentrations of 6 indicator polychlorinated biphenyl (PCB) congeners, nos. 28, 52, 101, 138, 153 and 180, were determined in surface sediments from the North End Lake in Port Elizabeth, South Africa. Forty-two surficial sediment samples were collected from different locations covering the region that receives the majority of the industrial waste, urban effluents and runoff and thus expected to be contaminated with different degrees of contamination. The analysis was achieved by gas chromatography-mass spectrometry (GC/MS) using the internal standard method. The total PCB concentrations in the samples ranged from 1.60 to 3.06 ng·g-1 dry weight (dw). The concentrations of congener profiles showed significant differences. Generally, the highest PCB concentrations were associated with high organic matter contents and small grain size. The highly chlorinated PCBs dominated with regards to the levels in sediments. PCB 138 was the major contributor to the total PCBs and was detected at 100% of sites. This study provided a snapshot of the PCB contamination status in the North End Lake sediments, and allowed for a comparison between the investigated system and other systems worldwide.Keywords: PCBs, sediments, organic matter, particle size, North End Lake" @default.
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- W2767242242 date "2017-11-07" @default.
- W2767242242 modified "2023-10-02" @default.
- W2767242242 title "Characterization of polychlorinated biphenyls in surface sediments of the North End Lake, Port Elizabeth, South Africa" @default.
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- W2767242242 doi "https://doi.org/10.4314/wsa.v43i4.12" @default.
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