Published by Misasa Medical Center, Okayama University Medical School
Published by Misasa Medical Center, Okayama University Medical School

<Formerly known as>
岡大三朝分院研究報告 (63号-72号) 環境病態研報告 (57号-62号)
岡山大学温泉研究所報告 (5号-56号) 放射能泉研究所報告 (1号-4号)

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Sugihara, Takeshi
Akashi, Tsutomu
Yokoi, Shin
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.