霞ケ浦地域の堆積物,土壌,および生物試料中の塩素化ダイオキシンおよびジベンゾフラン

概要

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The concentrations of polychlorinated dibenso-p-dioxins (PCDDs9 and dibenzofurans (PCDFs) in sediment, soil, fish and shrimp samples from Kasumigaura, a Japanese freshwater lake, area were determined. 2,3,7,8-Substituted compounds were separated using two GC stationary phases. Based on the isomeric determination of TCDDs and TCDFs, the herbicide, CNP, was suggested to be one of the source of PCDD/Fs in this area. Another source which was common to all the sediment and soil samples seemed to be also present. The isomer patterns for fish and shrimp samples were different from those for sediment samples and total PCDDs and PCDFs concentration of the biological samples and no correlation with their lipid content. These indicated that habitat and /or trophic level were more important determining factors of PCDD/F concentrations in fish and shrimp than their lipid contents.
横浜国立大学の論文