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为探索重庆煤矿尘肺发病规律，对重庆1986年在册的47038名接尘工人进行了回顾性调查。结果显示，重庆煤矿尘肺患病率为13．0％．平均发病工龄为20年，平均发病年龄为46岁，尘肺死亡率为24．5％，平均死亡年龄为58．2岁，大块纤维化患病率为1．6％；尘肺的发生与工人接触高合矽量、高浓度粉尘有关；重庆煤矿粉尘中游离SiO2，平均含量为8．5％，尘肺病例以煤矽肺和煤肺为多，矽肺病例相对较少；防尘工作重点应放在采煤工作面。
In order to explore the regularity of pneumoconiosis in Chongqing Coal Mine, a retrospective survey was conducted on 47,038 dust-exposed workers who were registered in Chongqing in 1986. The results showed that the prevalence of pneumoconiosis in coal mines in Chongqing was 13.0%. The average length of service was 20 years, the average age of onset was 46 years, the pneumoconiosis mortality rate was 24.5%, the average age of death was 58.2 years, the prevalence of massive fibrosis was 1.6%; the occurrence of pneumoconiosis and workers Contact with high silicon content, high concentration of dust; Chongqing coal mine free SiO2, the average content of 8.5%, pneumoconiosis cases with coal silicosis and coal lung more, less silicosis cases; dust prevention should focus on Coal face.