我站自1973年以来对尘肺患者均发有尘肺动态访视卡，本文根据动态访视卡内容运用流行病学方法，对81例尘肺患者的发病规律、动态变化进行分析，报告于下。1测尘资料分析81例尘肺患者接触粉尘浓度的范围为10．33～382．15mg／m‘。最高超标达190．75倍。游离S．OZ含量为5．7％～ I station since pneumoconiosis patients from 1973 were issued dynamic visitation card, this article based on the contents of dynamic access card using epidemiological methods, the pathogenesis of 81 cases of pneumoconiosis, dynamic changes were reported, the next report. A dust data analysis 81 cases of pneumoconiosis contact dust concentration range of 10.33 ~ 382.15mg / m ’. The maximum exceeded 190.75 times. Free S OZ content of 5.7% ~