Abstract
PCDDs and PCDFs were analyzed by high resolution GC MS in several invertebrate animals collected from a rural beach in Japan. PCDDs and PCDFs were detected in all samples. Total concentration of PCDDs and PCDFs ranged 8.8–120 pg g −1 wet and 3.5–38 pg g −1 wet, respectively. TEQs of invertebrate animals examined ranged from 0.048 pg g −1 wet in sea slug to 0.91 pg g −1 wet in mussel. Isomer profiles in all samples were similar to each other despite of variety of species. Their major sources are estimated to be herbicides such as CNP and PCP, and combustion by using a statistical analysis of isomer profiles.
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