你是自己装的还是找人装的？
精华 感谢“小地主”，uglyducking，Mikejia： 成功安装氡气排放设备
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不是说氡气会积累在肺部吗？到你这里咋不积累了？
mianfei
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氡气积累在肺部？有任何可能吗？惰性气体耶，化学性质极端稳定，无法构成化合物沉积。物理上也不溶于水喝油，再加上3.8天的半衰期，你让它怎么积累啊？上口气进去，下口气就出来了，而且少了不少。不是说氡气会积累在肺部吗？到你这里咋不积累了？
只要人不在地下2公里采矿，根本就无需担心氡气。
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Q. How can radon affect my health?
A. Radon gas and radon progeny in the air can be breathed into the lungs where they breakdown further and emit "alpha particles". Alpha particles release small bursts of energy which are absorbed by nearby lung tissue. This results in lung cell death or damage. When lung cells are damaged, they have the potential to result in cancer when they reproduce.
The only known health risk associated with exposure to high levels of radon in indoor air is an increased lifetime risk of developing lung cancer. The risk from radon exposure is long term and depends on the level of radon, how long a person is exposed and their smoking habits. If you are a smoker and are exposed to elevated levels of radon your risk of developing lung cancer increases significantly.
On average, 16% of lung cancer deaths are attributable to radon exposure in Canada. In 2006, an estimated 1,900 lung cancer deaths in Canada were due to radon exposure. Radon is the 2nd leading cause of lung cancer, after smoking.
Other than lung cancer, there is no evidence that radon exposure causes other harmful health effects such as any other form of cancer, respiratory diseases such as asthma, or symptoms such as persistent coughing or headaches.
mianfei
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http://fukushima-diary.com/2013/01/column-what-is-sv-bq-cesium-how-and-why-it-matters/
At last, human body has about 70 Bq/Kg of potassium‐40. Potassium‐40 is a natural radioactive material, it’s even contained in bananas.
http://www.hent.cc/html/2580645813.html
辐射处处都在
天然辐射来源之一是人体内部都有放射性核素钾-40。大家知道，人体是由细胞构成的，细胞是由碳、氢、氧、氮、钠、钾、钙、镁、硫、磷、铁、钼等许许多多元素组成的。一个成人体内约有100克钾元素，其中万分之一是放射性同位素钾-40。钾-40是βˉ和γ放射体，半衰期12.6亿年。钾-40放出的射线约一半被人体组织吸收了，另一半辐射出体外。如果让一个成年人躺在一个人体那么大的计数器（人体计数器）上进行测量，一分钟可以测到约15000个计数。这种钾-40不是核工业，也不是核爆炸带来的，因为古代人和现代人的人体里一样都有钾-40。
At last, human body has about 70 Bq/Kg of potassium‐40. Potassium‐40 is a natural radioactive material, it’s even contained in bananas.
http://www.hent.cc/html/2580645813.html
辐射处处都在
天然辐射来源之一是人体内部都有放射性核素钾-40。大家知道，人体是由细胞构成的，细胞是由碳、氢、氧、氮、钠、钾、钙、镁、硫、磷、铁、钼等许许多多元素组成的。一个成人体内约有100克钾元素，其中万分之一是放射性同位素钾-40。钾-40是βˉ和γ放射体，半衰期12.6亿年。钾-40放出的射线约一半被人体组织吸收了，另一半辐射出体外。如果让一个成年人躺在一个人体那么大的计数器（人体计数器）上进行测量，一分钟可以测到约15000个计数。这种钾-40不是核工业，也不是核爆炸带来的，因为古代人和现代人的人体里一样都有钾-40。
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没事儿吸两口？
We installed the fan. Rented some tools from Homedepot to make holes in the wall. We installed the fan from the sump pump area where most of Radon come out because we live in countryside. You can use the same tool to make a hole in the basement floor. Find some videos online to see how you can do it yourself.
