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ID 31694
JaLCDOI
フルテキストURL
著者
Takigawa, Tomoko Okayama University
Kishimoto, Takumi Okayama Occupational Health Promotion Center
Nabe, Makoto Kibikogen Rehabilitation Center for Employment Injuries
Nishide, Tadashi Okayama Occupational Health Promotion Center
Wang, Da-Hong Okayama University
Seki, Akihiko Okayama University
Uchida, Genkei Okayama Occupational Health Promotion Center
Kira, Shohei Okayama University
抄録

This study involved the examination of 1,006 chest x-ray films of workers from the industries devoted to shipyard welding, stone grinding, and refractory crushing in southern Okayama prefecture. Of the reviewed films, analysis was focused on subjects with a profusion rate of 0/1 as well as pneumoconiotic subjects (exhibiting profusion rates of 1/0 or greater) in order to discover cases in the beginning stages. One-hundred-and-seventy-four films illustrated a profusion rate of 0/1 or greater, and the proportion of this profusion rate was revealed to be highest in shipyard welders. Even some workers under 40 years of age were found to have already developed pneumoconiosis. Of these 1,006 subjects, 30 volunteers permitted us to measure their personal dust exposure concentrations. The measured concentration of the shipyard welders' dust exposure (respirable dust; 3.3 86.3 mg/m3, total dust; 7.5-117.0 mg/m3) was higher than those of the other 2 industries. Statistical differences among the industries were observed in the respirable dust concentrations. A statistically significant positive correlation was demonstrated between the working duration in dusty environments and the rate of profusion. The present findings suggest the need for taking adequate measures in Okayama in order to prevent workers from developing, or to help retard the progression of, pneumoconiosis.

キーワード
pneumoconiosis
profusion
dust exposure
shipyard welder
Japan
Amo Type
Article
発行日
2002-12
出版物タイトル
Acta Medica Okayama
56巻
6号
出版者
Okayama University Medical School
開始ページ
303
終了ページ
308
ISSN
0386-300X
NCID
AA00508441
資料タイプ
学術雑誌論文
言語
English
論文のバージョン
publisher
査読
有り
PubMed ID
Web of Sience KeyUT