EPA radon action level 3

https://readharvesty.com/s/TLkkHF9QqjEyu7dg29HeK

The EPA radon action level is the point at which you should take steps to reduce radon in your home, and it's set at 4 picocuries per liter of air. If your test shows radon levels above that, agencies recommend installing a mitigation system to lower your exposure and health risk. It's a practical guideline, not a legal limit, so acting on it helps protect your family from lung cancer risks over time.