估计接触住宅中氡的全球健康影响。
Estimate the global health impact of exposure to residential radon.
室外的氡水平通常很低。
甚至在氡的案例中，只有可得的行动指导。
[8] Even in the case of radon, only guidelines for action are available.
另外两种空气污染需要某种提示：氡和石棉。
Two other air pollutants require some mention: radon and asbestos.
可供氡进入家中的途径
氡也可在水中找到。
在许多国家中，氡是肺癌的第二种最重要病因。
Radon is the second most important cause of lung cancer in many countries.
可以通过测试来确保家中没有氡。
You can make sure your home is radon free by getting a test.
环境中的氡与公众的健康息息相关。
氡是一种放射性的自然气体，从地下散发到空气中。
Radon is a natural radioactive gas that emanates from the ground into the air.
氡更容易使吸烟者患肺癌。
Radon is much more likely to cause lung cancer in people who smoke.
氡污染水平较低，接近环境本底水平值。
Its radon pollution is low, near to the environment background value.
当吸入之后，来自氡的放射暴露可导致人们罹患肺癌。
When inhaled, the radiation exposure from radon may lead to lung cancer.
氡是什么？
检查你家中是否含有氡。
水氡与水汞的动态可能有一定影响，但影响幅度不大。
环境中的氡、铀和铅等有害微最元素严重危害人类健康。
Presence of Rn, U and Pb in environment is a ubiquitous hazard to human health.
文中给出了本实验装置的排气驱氡时间不应小于4小时。
氡对人体的辐射伤害占人体所受到的全部环境辐射的55%以上。
More than 55% harm brought by environment radiation is from radon.
氡对人体的辐射伤害占人体所受到的全部环境辐射的55%以上。
More than 55% harm brought by environment radiation is from radon.
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