ダイオキシン類環境モニタリングデータの解析

概要

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To characterize transfer of dioxins among the environmental media, environmental monitoring data of dioxins measured by Japan Environment Agency was analyzed using normalized homologue-compositions and isomer-contents in dioxin-homologues in each medium. The homologue-compositions showed similarity between air and deposited particulate and between paddy soil and sediment. The normalized isomer-contents showed considerable similarity among air, deposited particulate, soil, and sediment. However, the compositions and the isomer-contents in aquatic organisms were quite different from those in other media. These results indicate that the paddy soil is an essential compartment in the mathematically based modeling to evaluate the environmental behavior of dioxins and also that detailed study on isomer-specific bioaccumulation mechanisms are required for the modeling.
横浜国立大学の論文