地质矿产部劳动保护研究所第四研究室阎跃进等,为研究地质勘探作业呼吸性粉尘浓度接触阈限值,采用寿命表法对地质勘探坑探掘进接尘工人呼吸性粉尘吸入量与尘肺发病的剂量-反应关系,进行了分析。 结果表明,地质勘探坑探掘进接尘工人的呼吸性粉尘接触浓度与环境中粉尘浓度的比值 Yan Yuejin, the fourth laboratory of Institute of Labor Protection, Ministry of Geology and Mineral Resources. In order to study the contact threshold of respirable dust concentration in geological exploration operation, the life table method was used to explore the inhalation capacity of respirable dust and the incidence of pneumoconiosis The dose-response relationship was analyzed. The results show that the ratio of respiratory dust exposure concentration to dust concentration in the environmental exploration pit