氡及其子体随着呼吸进入人体,氡大随呼气排出体外,而子体则粘附在气管和沉着在肺胞中,产生衰变,放出射线,造成内照射。初步认为这是含铀金属矿山放射性危害的主要因素。氡及其子体对人的危害是以达到一定浓度的氡长期进入人体为条件的。 Radon and its daughters enter the body as they breathe, and radon exits the body with exhalation. The daughters adhere to the trachea and sink in the lung cells, causing decay and radiating rays, resulting in internal irradiation. It is initially believed that this is the main factor of radioactive hazard of uranium-bearing metal mines. Radon and its progeny to human hazards is to reach a certain concentration of radon long-term access to the human body as a condition.