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为考核某锡矿的防尘效果,我们对该矿井下1958～1979年的粉尘浓度与矽肺发病情况作了回顾性调查,在此基础上采用田凤调、符绍昌氏提出的研究制定粉尘容许浓度标准的直线回归分析法,对该矿井下22年来的粉尘资料及矽肺发病资料进行统计分析,为国家修改现行粉尘卫生标准提供参考数据。材料与方法
In order to assess the dust-proof effect of a tin mine, we conducted a retrospective survey on the dust concentration and the incidence of silicosis from 1958 to 1979 in the mine. Based on this, we adopted the study of Tian Feng-tian and Fu Shao-chang to develop a study on the allowable dust concentration Standard linear regression analysis of the mine 22 years of dust data and silicosis data for statistical analysis for the country to modify the current dust hygiene standards provide reference data. Materials and Methods