天然萤石的放射性元素含量及其影响

The radioactive elements content of natual fluorite and its influence

就萤石的放射性是否影响人体健康等问题,利用伽马能谱仪对我国浙江、内蒙和重庆三个地区五个代表性的萤石矿区中不同围岩赋存条件下的的萤石的放射性进行测量,其结果表明:无论岩浆岩地区,变质岩地区或沉积岩地区产出的萤石的放射性元素含量均远低于赋矿围岩的放射性元素含量。天然萤石表现出明显的放射性元素含量低值,利用公式计算后发现其放射性值远远低于国家规定的放射性限值。因此,除了少量有铀矿伴生的紫黑色萤石外,绝大多数天然萤石对人体的健康没有危害。

whether fluorite radioactivity affects human health or not, in view of such a situation, the authors used gamma spectrometer to measure the fluorite radioactivity in different host rocks in five representative fluorite ore districts which are distributed respectively in Zhejiang, Inner Mongolia and Chongqing. The results show that, no matter where the fluorite occurs, i.e., whether it occurs in magmat-ic rocks, metamorphic rocks or sedimentary rocks, the radioactive elements content of fluorite is all by far lower than that of the host rocks. Radioactive elements content of natural fluorite is very low, and the result by using the formula to calculate shows that its radio-active value is much lower than the radioactive limit prescribed by the state. Therefore, except for a small amount of violet black fluorite associated with uranium deposits, the vast majority of natural fluorites cause no harm to human health.