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Originally Posted by retiredguy123
I tend to agree with you. But, the EPA claims that radon gas is the second leading cause of lung cancer in the U.S. and the National Cancer Institute claims that about 20,000 people die every year from lung cancer caused by radon gas. The potential problem is more likely as houses become better insulated and more leak proof. If your house has windows and doors that leak air, the house will not fill up with radon gas. Passive mitigation is very inexpensive, especially if it is designed into the house construction. You just install a plastic pipe from the basement sump to the exterior wall. If that doesn't work, then you need to install a fan in the pipe.
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Good summary, current methods essentially vacuum air from under the foundation and exhaust externally. Still a lot of controversy but $700 to mitigate a potential risk of lung cancer was worthwhile to me.
Here's a relatively balanced article illustrating the complexities.
Trump Wants the EPA Radon Program Cut. So Do Some Scientists | WIRED