【摘要】 目的研究稀土矿区环境中,啮齿动物微核率的变化。方法用电感耦合等离子体质谱法测定了稀土矿区与对照区的水、土壤、空气、蔬菜的含量;检查了该环境中啮齿动物微核率。结果稀土矿区村民室内空气总悬浮颗粒中稀土浓度为905.1 ng/m3,可吸入颗粒中稀土浓度为612.5 ng/m3;蔬菜(干重)6 370.35μg/g;井水9.18μg/L;土壤869.73μg/g。稀土矿区啮齿动物微核率为2.12‰,而对照区为1.06‰,差异无统计学意义(P>0.05)。结论在稀土矿区的自然生态环境下,未发现啮齿动物微核率显著增加。更多还原

【Abstract】 Objective To study change of micronuclei in rodent of rare of earth mining.Methods ICP-MS was used to measured rare earth concentration in air,well water,soil,vegetable in rare earth mining and nonmining.Results The rare earth concentration in total suspended pariculates(TSP) in the room was 905.1?ng/m~3,in inhalable particles(IP) outroom the rare earth concentration was 612.5?ng/m~3;in vegetable was 6?370.35?μg/g(dry weight);in well water was 9.18?ng/L;in soil was 869.73?μg/g.The micronuclei rate was 2.12‰ in rare earth mining,1.06‰ in contrast area.They hadn’t statistical significant difference(P>0.05).Conclusion In rare earth mine area,the micronuclei rate don’t significantly increase.更多还原