Study on radiation environmental impact of exploitation and utilization of Bayan Obo rare rarth ore

摘要

Taking Bayan Obo mining area of Baotou Iron and Steel Company as a typical case,the radiation environmental impact caused by the gas effluent emission from rare earth mining was investigated and evaluated.The evaluation results show that it has caused significant impact on the surrounding residents,although still lower than the limit of personal effective dose(1 mSv/a).