【摘要】 本文分析了全国六个煤矿的历年煤尘测尘资料及采煤工的尘肺普查资料,分别用直线回归法、呼吸粉尘值法和寿命表法计算出六个煤矿的最高容许浓度。结果认为,仍以10mg/m~3作为我国煤尘最高容许浓度标准是合适的。 用三种方法在各煤矿所得的结果不同,讨论了产生这种差异的原因。认为寿命表法可推广应用。更多还原

【Abstract】 Annual coal dust concentration and the prevalence of pneumoconiosis of coal cutting workers in six coal mines have been analyzed. The maximum allowable concentrations in these mines have been calculated with the methods of line regression, respiratory dust value and life table respectively. The results show that 10mg/m3 is still feasible,to be used as the maximum allowable concentration of coal dust in our country.The results obtained from above three methods differ from each mine. The cause of inducing these differences has been discussed. The paper suggests that the method of life table is more appropriate than the other two.更多还原