radon edwardsville il 3
https://radoncollinsvilleinsight.lumenforgex.com/posts/radon-collinsville-homeowners-should-know-testing-and-mitigation-in-metro-east-illinois
Radon in Edwardsville, IL is a real concern because the area sits on the same shale and limestone formations that can release this radioactive gas into homes. If you don't test for it, you'd never know it's building up in your basement or crawlspace—no smell, no color, just a higher risk of lung cancer over time. I've talked to neighbors who found levels above the EPA action limit and had to install mitigation systems to feel safe. It's not something to panic about, but definitely worth a simpl…