在核武器地爆时所造成的放射性污染中,除放射性碘外,稀土族、锆等核素所占的比例较大;核工业生产以及核动力堆检修时,人们也有可能受到稀土族钚、超钚等核素的内污染,特别是钚生产、冶金过程中,由于使用个人防护器材不便或口罩防护效果不佳,人员可受到 In the radioactive pollution caused by the nuclear explosion, radioactive iodine, the rare earth, zirconium and other nuclides accounted for a large proportion of nuclear industry production and nuclear power reactor overhaul, people may also be rare earth plutonium, ultra Plutonium and other nuclides within the pollution, especially plutonium production, metallurgical process, due to the inconvenience of personal protective equipment or mask protection effect is poor, personnel can be