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ID 18349
Eprint ID
18349
フルテキストURL
Thumnail 74_247.pdf 5.72 MB
タイトル(別表記)
Investigation of A Dry-Cleaning Shop Using Tetrachloro-ethylene(with a special reference to Fujiwara's substance in the urine of the employees)
著者
緒方 正名 岡出大学医学部公衆衛生学教室
杉山 勝三 岡出大学医学部公衆衛生学教室
黒田 泰生 岡出大学医学部公衆衛生学教室
抄録
We investigated the working conditions of a dry-cleaning shop where they had previously used trichloro-ethylene but after the renovation of the shop they now use tetrachloro-ethylene instead and obtained the followlng results. 1. The concentration of tetrachloro-ethylene in the air at the time, when washers were open, was found to be 200-250ppm, surpassing the maximum allowable concentration and the average concentration in the air was, however, 25-30ppm, showing a distinct decrease as compared with the concentration of 420ppm near the washers at the time when they had used trichloroethylene. 2. There could be detected Fujiwara's substance in the urine of employees and assuming the substance to be trichloroacetic acid, it was found in the quantity of 14.5mg/l, which, compared with 416mg/l of trichloro-acetic acid, detectable at the time when they had used trichloro-ethylene, was clearly less. It is assumed that one of the factors bringing about such a decrease, is due to the inhalation of lesser amount of ethylene vapor by the the use of less volatile tetrachloro-ethylene in place of trichloro-ethylene. 3. Judging from the Rf value of paper chromatography and absorption spectra of Fujiwara's reaction, it is assumed that Fujiwara's-positive substance in the urine of employees has the chemical structure similar to one of trichloro-acetic acid. 4. In the serum proteins of the employees there could be recognized a diminution of albumin and an increase of β-globulin by paper electrophoresis, in their colloidal reaction an increase of cephalin-cholesterol reaction and the right shift in the cobalt reaction, and an increment of the urinary urobilinogen content. These results seem to indicate a slight disturbance in the liver functions of the employees as the result of their employment for 6years while using trichloro-ethylene and working in the shop for 4years since they began to use tetrachloro-ethylene.
発行日
1962-03-30
出版物タイトル
岡山医学会雑誌
出版物タイトル(別表記)
Journal of Okayama Medical Association
74巻
1-3号
出版者
岡山医学会
出版者(別表記)
Okayama Medical Association
開始ページ
247
終了ページ
253
ISSN
0030-1558
NCID
AN00032489
資料タイプ
学術雑誌論文
オフィシャル URL
https://www.jstage.jst.go.jp/article/joma1947/74/1-3/74_1-3_247/_article/-char/ja/
関連URL
http://www.okayama-u.ac.jp/user/oma/
言語
Japanese
著作権者
岡山医学会
論文のバージョン
publisher
査読
有り
Eprints Journal Name
joma