Polychlorinated dibenzo-p-dioxins and polychlorinated dibenzofurans in shellfishes from south coast of Korea.
PCDDs and PCDFs were analyzed by high resolution GC-MS in two species of shellfish collected from southern coast of Korea. PCDDs and PCDFs were detected from all samples. Total concentration of PCDDs and PCDFs ranged from 4.4 to 19 pg/g wet weight and from 2.5 to 26 pg/g wet weight, respectively. By using a method of cluster analysis based on congener profiles, samples were categorized into two groups, "the urban group" and "the rural group". A tendency that TEQ levels of the urban group were higher than those of the other group was observed. Although a reliable source of dioxins in the samples was identified in this study, it was suggested that combustion sources are responsible for occurrence of dioxins in samples of both groups.
Hashimoto
S
S
National Institute for Environmental Studies, Tsukuba, Japan.
Hyeon-Seo
C
C
Morita
M
M
D001572:Benzofurans / Q000032:analysis*; D000072338:Dibenzofurans, Polychlorinated; D008401:Gas Chromatography-Mass Spectrometry; D007723:Korea; D000072317:Polychlorinated Dibenzodioxins / Q000031:analogs & derivatives* / Q000032:analysis; D012758:Shellfish / Q000032:analysis*; D014874:Water Pollutants, Chemical / Q000032:analysis*
D001572:Benzofurans; D000072338:Dibenzofurans, Polychlorinated; D000072317:Polychlorinated Dibenzodioxins; D014874:Water Pollutants, Chemical