Distribution of Polychlorinated Biphenyls(PCBs) in Sediments from Masan Bay, Korea.
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概要
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Polychlorinated biphenyls (PCBs) were measured in surface sediments and sediment cores from Masan Bay of Korea. Samples were digested with 1N KOH / EtOH, extracted and cleaned up by silica gel and Florisil PR column chromatography. The recoveries of chemicals were more than 93%. The quantative analyses were carried out by gas chromatograph-electron capture de-tector (GC-ECD) equipped with a capillary column. PCBs concentrations of surface sediments ranged from 8 to 210ng / g.<BR>PCBs were also detected in the core samples analyzed. As a result of the investigation, we estimated that PCBs might be used industrially from the 1950s in Korea, because the PCBs contaminantion level remarkably increased in the late 1950s part on the samples. This study is invaluable due to the first investigation about the environmental pollution and situation by PCBs in Korea.
- 日本環境化学会の論文
日本環境化学会 | 論文
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