Capillary gas chromatographic pattern analysis of polychlorinated biphenyls in marine species comparison of concentration and chlorine substitution of selected polychlorinated biphenyl components in marine organisms of the germany bay north sea
Chemosphere 15(3): 289-300
The quantitation of PCB patterns of cod (Gadus morhua), dab (Limanda limanda), plaice (Pleuronectes platessa), sea scorpion (Myoxocephalus scorpius) and mussel (Mytilus edulis) revealed significant differences in the accumulation of single PCB-compounds. Each of the examined species exhibited its specific PCB-pattern: The three flat-fish species and the cod have nearly similar qualities, they prefer to store such chlorobiphenyls lacking of vicinal positions without clorine; the sea-scorpion only accumulates those PCB-components, which are substituted in p,p'-positions with chlorine; the mussel scarcely accumulates components, which have at least one of their two phenylrings substituted with four or five chlorines in sequence. In contrast, differences within individuals of the same species were not significant. Season, EOM (extractable organic matter) or age of the animals did not decisively influence the qualitative composition of PCB-compounds, but only their contents.