著者

山下 節義 土居 真 西尾 雅七 北條 博厚 田中 昌人

出版者

日本衛生学会

雑誌

日本衛生学雑誌 (ISSN:00215082)

巻号頁・発行日

vol.27, no.4, pp.364-399, 1972-10-28 (Released:2009-02-17)

参考文献数

104

被引用文献数

19 36

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In the summer of 1955, 12, 131 children in western Japan were poisoned as a result of the consumpting “Morinaga Dry Milk” (according to 1956 survey conducted by the Welfare Ministry). 130 of children actually died as a result of this poisoning. The arsenic contained in the milk resulted from the poorly purified “Secondary Sodium Phosphate” used as a stabilizer in the manufacturing process of powdered milk.The afflicted infants were those for whom the powdered milk served as a main food and who were physically and mentally in the developing process. Such mass-poisoning had heretofore never been reported in the world.As the symptoms of poisoning disappeared, these children were thought to have been cured. The issue was closed medically and administrationally in 1956 as the conclusion had been reached that there would be no longlasting effects.In 1969, Dr. Maruyama et al. (J.J.P.H. Vol. 16, No. 3, p. 170, 1969) reported continuing effects of this arsenic poisoning, once more reviving the medical and social problem. From that time, surveys of these patients were carried out in several places in western Japan.In Kyoto, from December 1970 to July 1971, inclusive checks were done as follows: Epidemiological Survey (415 Subjects), Clinical Survey (291 Subjects) and Clinical Psychological Survey (261 Subjects).The Kyoto victims presented the following:1. In Kyoto, many victims had a much higher rate of physical and mental complaints than the control group.2. Average height was less than that of the same age group.3. Rate of victims who showed proteinuria (male 14%, female 12%) was higher than that of the same age group.4. Abnormal and borderline brain waves were found to be much higher rate in victims (abnormal 14%, borderline 17%) than average.5. The younger the age of milk consumption, the higher were the rates of abnormal brain waves.6. Central nervous system disorders eq. epilepsy, minimal brain damage syndrome, mental retardation etc. were found to be higher rate than average.7. Numbers of the patients with hardness of hearing (18%) were above average.8. Numbers of the patients with anomaly of refraction (48%) were above average.9. Many victims (64%) had symptoms of skin that characterized pigmentation and depigmentation rashes etc..10. Tooth enamel dysplasia was found in higher rates among victims.11. Numbers of victims (21%) with an IQ of less than 85 exceeded average numbers, according to Educational Ministry Statistics.12. In psychological tests, eq. Uchida-Kraepelin methods, atypical group in victims was found to be higher rate than average.13. Many had irregular and painful menstruation.14. Many complaints of victims continued from infancy.15. The result of this follow-up study is not inconsistent with the result of pathological and clinical report in 1955.16. Clinical findings and diagnostic reports of this survey are just the same as those in Osaka and Okayama etc.As mentioned above, it can be concluded that the physical and mental defects of these victims are the result of consumption of arsenic tainted “Morinaga Dry Milk” and that these persons have received no therapy for 16 years.These victims are now in physical and mental adolescent changes. As they have had no follow-up medical care, a prediction of their health in adult hood is impossible.For these reasons, a continuation of the surveys is most necessary, and, counterplans-social care, health consultations, psychological counselling including educational problems etc.-should be carried out by medical and psychological specialists.

著者

土居 真俊 Masatoshi Doi

出版者

基督教研究会

雑誌

基督教研究 (ISSN:03873080)

巻号頁・発行日

vol.29, no.1, 1956-03

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論文

著者

土居 真俊 Masatoshi Doi

出版者

基督教研究会

雑誌

基督教研究 (ISSN:03873080)

巻号頁・発行日

vol.28, no.3, 1955-10

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論文

著者

山本 啓司 下次 圭太 土居 真輔 ハフィーズ ウル レーマン

出版者

一般社団法人 日本地質学会

雑誌

地質学雑誌 (ISSN:00167630)

巻号頁・発行日

vol.117, no.8, pp.468-471, 2011-08-15 (Released:2011-12-10)

参考文献数

9

被引用文献数

2 2

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薩摩半島中央部の八瀬尾地域(四万十帯北帯)には蛇紋岩類が分布することが知られている.従来「貫入岩体」と見なされていた蛇紋岩類は,産状によって蛇紋岩体,蛇紋岩孤立岩塊および蛇紋岩主体の崩壊堆積物に区別できる.蛇紋岩体は,ほぼ水平もしくは浅い皿状の構造的境界面を介して西傾斜の砂岩層・砂岩泥岩互層(四万十累層群佐伯亜層群)の上に載っていて,岩体基底部の変形構造は上位側の東方への相対的変位を示唆する.これらの観察結果から蛇紋岩体は西側から移動してきて佐伯亜層群の上に定置したクリッペであると解釈できる.九州西南部の地体構造と蛇紋岩類の分布状況から推定すると,蛇紋岩クリッペの後背地は秩父帯の黒瀬川帯とされる領域にあると考えられる.

著者

山中 寿朗 石橋 純一郎 山下 徹 土居 真輔 坂本 丈明 中島 美和子 瀬口 真理子

出版者

日本地球化学会

雑誌

日本地球化学会年会要旨集

巻号頁・発行日

vol.52, pp.103-103, 2005

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鹿児島湾北部の姶良カルデラに当たる海域には、近年火山噴火予知連によって活火山と認定された若尊海底火山がある。同海域は以前より盛んな噴気活動が知られており、これまでの潜航調査から熱水性石油や熱水性沈殿物がいくつか見出され報告されている。しかし、実際の熱水湧出に関しては、これまで明瞭な証拠が得られていなかった。本報告では、熱水のゆらぎが認められ、30cmのプローブを差し込んでの温度計測で137℃の温度が得られた地点で間隙水の分析を行い、熱水端成分を推定するに足る純度の高い熱水を得ることができたのでその地球化学的特徴について報告する。