【摘要】 介绍了对安徽省某退役铀矿的环境放射性现状调查。调查结果表明 :尾渣掩埋坑周围的 γ辐射空气吸收剂量率远高于安徽省天然放射性水平调查值 ,原铀水冶厂遗址处种植的青菜、黄豆中 2 38U的含量高出对照点一个量级。土壤样品中的放射性核素 2 38U、2 2 6Ra、2 32 Th、4 0 K的含量均高于安徽省土壤放射性核素的平均含量 ,部分采样点的2 2 6Ra含量超过国家标准更多还原

【Abstract】 A survey of environmental radioactivity around a decommissioned uranium mine has been made.The result shows that the radiation absorbed dose rates in air around the tailing pits are far higher than the environmental natural radioactivity level in Anhui Province.The 238 U contents in vegetables and soybean grown on the original site are one order of magnitude than on the contrast point.The contents of 238 U、 226 Ra、 232 Th、 40 K in soil samples are all higher than the average radioactivity level in local soils in Anhui Province.更多还原