为了解白泥厂生产过程中产生的白泥尘对人体健康危害情况和寻找预防对策,我们于1984年4～9月对四家乡村白泥厂进行了现场劳动卫生学和职业病调查。现报告如下: 概况 四家白泥厂建厂已有10余年,最长为20年。有职工117人。主要生产白泥,原料由磁土(含sio_274％)、腊石(含sio_267～80％)、石灰石、苏州土(sjo_2含量未测)等粉碎制成。 生产工艺流程为:原料→晒干→粉碎→包装。四厂生产设备陈旧简陋,生产厂房和车间利用简单的民房或改建的民房,呈现干式、敞开式作业。除一个厂有一台LIH型-27-3防尘 In order to understand the harm to human health caused by white mud and dust generated during the production of white mud plant and to find preventive measures, we conducted on-site labor hygiene and occupational disease investigation in four rural white mud plant from April to September of 1984. The report is as follows: Overview Four white mud factory construction has been more than 10 years, the longest 20 years. There are 117 employees. The main production of white mud, raw materials from the magnetic (including sio_274%), preserved stone (containing sio_267 ~ 80%), limestone, Suzhou soil (sjo_2 content not measured) and other crushing made. Production process as follows: raw materials → dried → crushed → packaging. Fourth-plant production equipment obsolete, production plant and workshop using simple houses or rebuilt houses, showing dry, open operations. There is a LIH type -27-3 dustproof except for one factory