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为了解我区乡镇小煤窑井下劳动卫生、尘肺发病情况及有关因素,于1985年6～11月对大沙沟的四个乡村办煤窑,140名井下作业工人进行了煤(矽)肺调查,现报告如下: 一般情况
In order to understand the situation of underground sanitary and pneumoconiosis in towns and townships and related factors, we conducted a coal (silicon) lung survey of four rural coal mines and 140 underground workers in Dashaogou from June to November in 1985, The report is as follows: General situation