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在铀矿的勘探、开采和水冶过程中,产生大量废石和尾矿。国外曾报道过用铀矿尾矿做建材,会使建筑物内的γ外照射、氡-222及其子体浓度显著增高,以致部分房屋不宜居住。我省某铀矿附近,近十几年来一直有人利用铀矿废石做住房地基,特别是最近几年用得更多。为了摸清这种类型住房的辐射水平,我们于1982年对两个铀矿的四个废石场内的废石的辐射水平和某铀矿附近的八个村、镇用铀矿废石做地基的建筑物内的γ外照射、氡-222及其子体浓度作了调查,并作了放射卫生评价。
In the uranium exploration, mining and hydrometallurgical processes, resulting in a large amount of waste rock and tailings. Foreign countries have reported using uranium mine tailings building materials, will make the building outside the γ radiation, radon -222 and its daughter concentration was significantly higher, so that some houses should not be living. Near a uranium mine in our province, uranium waste rock has been used for housing foundation for more than a decade, especially in recent years. In order to find out the radiation level of this type of housing, we conducted a survey in 1982 on the radiation levels of waste rock in the four waste rock mines of two uranium mines and the waste and waste of uranium mines in the eight villages and towns near a uranium mine The γ radiation, the concentration of radon-222 and its daughters in the ground-based buildings were investigated and the radiation health assessment was made.