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为探讨影响煤工尘肺发病的主要因素,选择尘肺病情不同的两个邻近无烟煤矿进行了调查研究,分别比较了两煤矿尘肺工种工龄患病率,多重断面的尘肺患病率和工种别人年发病率,并用寿命表法分析两煤矿不同工种、不同入矿年代接尘工人按工龄累积的尘肺发病概率,结果表明,影响两煤矿煤工尘肺肺病情差异的因素主要是接尘量和粉尘中游离SiO_2含量,建议在修订我国粉尘最高容许浓度卫生标准时,宜将两者密切结合,把游离SiO_2含量分级更细些为好。
In order to explore the main factors influencing the pathogenesis of pneumoconiosis in coal miners, two adjacent anthracite coal mines with different pneumoconiosis conditions were selected for investigation. The occupational age, pneumoconiosis prevalence rate and annual incidence of pneumoconiosis in two coal mines were compared. Rate and using the life table method to analyze the probability of pneumoconiosis accumulated by working age in different types of coal mines of different coal mines and different mining ages.The results show that the main factors influencing the difference of coal pneumoconiosis pneumoconiosis between the two coal mines are the amount of dust pick-up and the release of dust SiO 2 content, it is suggested that in the revision of China’s maximum allowable concentration of dust health standards, it is appropriate to combine the two closely related to the content of free SiO_2 finer as well.