煤工尘肺(coal worker’s pneumoconiosis,CWP)是指煤矿各工种工人长期吸入生产环境中的粉尘,所引起的肺部尘肺病变的总称。我国的CWP发病多、危害重,且呈逐年上升趋势,其发病总数占尘肺的40%以上。然而,国外发达国家自20世纪70年代以后,CWP的患病率已明显下降,典型的大块纤维 Coal worker’s pneumoconiosis (CWP) refers to the general term for pulmonary pneumoconiosis caused by long-term inhalation of workers in coal mines in the production environment. The incidence of CWP in our country is many and the damage is heavy, and it shows an upward trend year by year. The total incidence of CWP accounts for more than 40% of the pneumoconiosis. However, the prevalence of CWP in developed countries in the world has dropped significantly since the 1970s. The typical bulk fiber