付着物量からみた親水用水としての水質について

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書誌事項

タイトル別名
  • Water Quality Required for Enjoyable Rivers from a Viewpoint of Attached Messes
  • フチャク ブツリョウ カラ ミタ シンスイ ヨウスイ トシテノ スイシツ ニ

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抄録

Water quality of rivers is usually judged from a visual impression. Attached masses on river beds are one of the factors affecting on a visual impression. When construction of an enjoyable river is plannd, attached masses of the river must be kept small, which gives an impression that water quality of the river is good enough to enjoy dabbling in the river. In this study, water quality required for enjoyable rivers is examined from a viewpoint of attached masses. The following results are obtained : (1) when attached masses of river beds are above 2mg/cm^2,many people tend not to feel like entering the river, and (2) when total phosphorous concentration of a river is above 0.2mg/1,the river can be a place where people do not enjoy seeing and entering it.

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