radon in basement 5

https://front-wiki.win/index.php/Understanding_Radon_Mitigation_Price:_What_Homeowners_in_St._Louis_Need_to_Know

We finally tested our basement for radon after reading about local issues, and the results were higher than expected. It's a heavy, invisible gas from soil that can build up in lower levels, and we learned it's the second leading cause of lung cancer. We are now looking into mitigation systems to fix it, as opening windows helps temporarily but isn't a long-term solution.