検証「水俣病総合調査研究連絡協議会」 : 有機水銀説あいまい化経緯再考

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Minamata disease occurred because inhabitants consumed the polluted seafood. The official confirmation of Minamata disease was in 1956. However, the material cause of that disease was uncertain at that time. The Minamata Food Poisoning Sub-committee, under authority of the Food Hygiene Investigation Committee of the Ministry of Health and Welfare, determined the material cause of Minamata disease to be a certain kind of organic mercury in 1959. The sub-committee was dissolved after their report. The discussion about the investigation of the cause was performed in a conference initiated by the Economic Planning Agency, which was titled "Minamata Disease General Investigation and Research Liaison Council". The Participants were eight scientists; four fishery scientists, two chemists, and only two medical scientists, which implied that only examination of the organic mercury was to be discussion. The conference was held four times from 1960 to 1961. In the first and second conferences, the organic mercury research from a medical perspective progressed in cooperation with fishery sciences. In the third conference, it was reported that UCHIDA Makio, professor of Kumamoto University, had found organic mercury crystal in the shellfish found in Minamata-bay. Authorities of biochemistry and medicine in the third conference criticized UCHIDA's research. At the fourth conference, reports contradicting his research were presented. Although those anti-UCHIDA reports were not verified, AKAHORI Shiro, the highest authority of biochemistry, not only accepted them, but also expressed doubt in the organic mercury causal theory. Therefore, this theory was recognized as uncertain.
2010-06-25

検証「水俣病総合調査研究連絡協議会」 : 有機水銀説あいまい化経緯再考

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