Study on Distribution and Behavior of Dioxin and related Compounds in the Suburban Environment: PCDDs and PCDFs in Soil, Air and Pigeon Fat Tissue Sample.

概要

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This study was conducted to elucidate the distribution and the behavior of PCDDs and PCDFs in an ordinary environment in Japan. Soil, air and pigeon samples were taken from a typical suburban area and analyzed. PCDDs and PCDFs were detected from all samples. Total actual and TEQ concentrations was ranging 600-19, 000pg/g dry and 22-52pg TEQ/g dry in soil; 20-67pg/m3 and 0.37-0.91pg TEQ/m3 in air; and 990-2, 800pg/g tissue and 46-113pg TEQ/g tissue in pigeon fat tissue, respectively. Those values mean that this area is polluted at the average level of dioxins in suburban areas. It was estimated that one of the major sources of dioxins in this area was "combustion process", though the isomer profile of environmental sample did not completely correspond to that of combustion source. And a pesticide like CNP and/or PCP could be regarded as the other source by a statistical analysis on isomer profiles.
日本環境化学会の論文