摘要
Abstract
In order to obtain the present radioactivity situation of ion adsorption type RE ores,survey was carried out by radioactivity measurement on Rn-222 and its progeny,gamma radiation dose rate,surface water,ground water,soil,biological sample,bottom sediment.The results indicate that radi-oactivity level of soil and bottom sediment is higher than local background level.Gamma radiation dose rate level has little relationship with RE ores,which is quite similar with the maximum value of local background.In addition,radioactivity level of Rn-222 and its progeny,surface water,ground water,biological sample is within the local background level.Therefore,it is essential for mining en-terprise to strengthen environmental awareness,improve environmental management scheme,monitor environmental quality change effectively and comply with authority regulation in order to ensure envi-ronment and public safety.关键词
稀土矿山/辐射/调查Key words
RE ores/radioactivity/investigation分类
资源环境
