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在铀矿的勘探和开采工作中,对工作人员呼吸器官有危害作用的物质,除了空气中的二氧化矽粉尘(可引起职业性矽肺)外,还有空气中矿尘内的放射性同位素、空气中的氡及其子代产物。氡子代产物在呼吸器官中有比矽尘高得多的阻留率。其中造成放射性危害的主要是氡的短寿命子代产物。由于放射性辐射的作用,有可能造成呼吸器官的慢性炎症、硬化、纤维化及癌症,同时还会促进矽肺病的更快形成、发展,并使病程恶化。为防止这些危害,可以采用通
In the exploration and exploitation of uranium, substances harmful to the respiratory organs of staff, in addition to silica dust in the air (which can cause occupational silicosis), radioactive isotopes in dust and air in the air, In the radon and its progeny products. Progeny of radon have a much higher retention rate in respiratory organs than silica dust. Among them, radioactive hazards are mainly short-lived progeny of radon. Due to the effects of radioactive radiation, it is possible to cause chronic inflammation, sclerosis, fibrosis and cancer of the respiratory organs, and at the same time promote the faster formation and development of silicosis and the worsening of the disease course. To prevent these hazards, you can use pass