Departmental Bulletin Paper 片川の水環境について

辰巳, 佳次  ,  Tatsumi, Yoshitsugu

(47)  , pp.187 - 189 , 2017-07-11
In this study, we investigated the water environment of the Katagawa River, which was found to be slightly polluted by field survey and water quality survey. From the Results of water quality survey, the river was gradually polluted from upstream to downstream. In addition, there was a tendency that the branch and subsequent portions of the river were more polluted. There are no point sources such as factories listed as pollution sources around the Katakawa River. Therefore, as a cause of pollution, influence of surface source such as farmland was suggested.

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