片山病発生地域の地表水の化学的研究-2-

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タイトル別名
  • CHEMICAL STUDTES ON THE RIVER WATERS IN THE INFECTED LOCALITIES WITH KATAYAMA-DISEASE (II)
  • カタヤマビョウ ハッセイ チイキ ノ チヒョウスイ ノ カガクテキ ケンキュウ 2

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抄録

In the previous report, one of the authors, T. Sugihara, discussed the results of chemical analysis of waters in the infected localites with Katayama-disease in the whole neighbourllood of Kannabe-cho, Fukayasu-distriict, Hiroshima-Prefecture. In this report, the authors discussed the results obtained in Yamanashi prefecture, and in the area drained by Chikugo River, and found the following facts: 1) The amount of KMnO(4) consumed and the copper content were high as in the previous report. 2) The calcium content was 7.3~22.2 mg/ℓ in the river waters of this report, but it was 18.7~38.2 mg/ℓ in the waters in the places of the previous paper. And in the previous report the author pointed out that the calcium content was fairly higher in the waters in the infected localities with Katayama disease than in the non-infected localities. But as the calcium content was relatively lower this time than in the previous investigation, more research is intended to reach definite conclusion.

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