Concentrations of 14 Hydrophilic Chemicals in Natural Waters at Kitakyushu Area.

概要

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The authors surveyed 14 kinds of hydrophilic compound, methacrylonitrile, acrylonitrile, crotonaldehyde, 1-propanol, p-dioxane, 2-hexanone, allyl alcohol, N-nitrosodimethylamine, N-nitrosodiethylamine, N, N-dimethylformamide, N, N-dimethylacetamide, ethylene chlorohydrin, furfural and 2, 3-epoxy-l-propanol, in natural waters at Kitakyushu area. The applied analytical method which was developed in our early work consists of the activated carbon preconcentration method and the GC/MS-SIM measurement. From the results of this survey from 1991 to 1992, 7 kinds of chemical were found at ng/l to μg/l in the seawater and 9 kinds were found in the river water. It was verified that the detected chimicals were allowed to diffuse through the air as well as the water due to their high volatility. p-Dioxane, acrylonitrile, N, N-dimethylformamide, 1-propanol and N, N-dimethylacetamide were detected with a high frequency, because these compounds are used extensively and are persistent in the environment. Among the chemicals detected in this study, p-dioxane was detected in many samples with the highest concentration. As it is carcinogen in animal experiments, it is necessary to successively monitor it's concentration and behavior in the environment.
日本環境化学会の論文