radon health risk 2

https://extra-wiki.win/index.php/Radon_Mitigation_West_St_Louis_County:_What_Homeowners_Should_Know

Radon is a naturally occurring radioactive gas that seeps into homes from the ground, often through cracks in foundations, and is the second leading cause of lung cancer after smoking. Testing is simple and affordable, and if levels are high, mitigation steps like sealing entry points and improving ventilation can significantly reduce exposure. Ignoring radon could mean silently risking your family's health every day.