10年来取得的主要工作成绩: 一、在国内首次弄清了白云鄂博稀土铁矿矿工长期吸入放射性钍尘后肺内钍的沉积量及其对健康的影响。前后下矿14年,用从美国引进并改进了的肺内钍沉积量测量系统,对638名接尘矿工进行了1158次测定, The main achievements in the past 10 years: First, it has been clear for the first time in the country that the amount of sediments in the lungs and their health effects have been reduced after long-term inhalation of radioactive haze in the Bayan Obo rare earth iron miners. Before and after the mine was used for 14 years, 1158 measurements were performed on 638 dust-mining miners using the improved measurement system for sedimentation in the lungs imported from the United States.