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 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.