Analysis on content of rare earth in environment of rare earth mine area

  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 par iculates(TSP)in the room was 905.1 ng/m³, in inhalable particles(IP)outroom the rare earth concentration was 612.5 ng/m³; in vegetable was 6 370.35μg/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.