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白云鄂博稀土铁矿破碎车间空气中氡氧子体浓度的测量及其对工人健康影响的初步评价许金奎，张健，陈兴安众所周知，氡、及其子体存在于空气中。白云矿钍的平均含量为０．０４％，铀含量很低，一般为千万分之几。铀钍的比例为１／５００。根据有关调查［１］，破碎车间空气...
Measurement of Radon Oxygen Species Concentration in the Air and Analysis of Its Impact on Workers’ Health in the Crust Workshop at Bayan Obo XU Jin-kui, ZHANG Jian, CHEN Xing-an It is well-known that radon and its daughters exist in the air. The average content of thorium in Baiyun Mine is 0.04%, and the content of uranium is very low, which is generally a few ten millionths. The ratio of uranium and thorium is 1/500. According to the investigation [1], crushing workshop air ...