radon in basement 4

https://radonmeasurementdeck.valiantfield.com/posts/why-accurate-radon-measurement-matters-for-st.-louis-homeowners

Radon in basement is a serious concern because this radioactive gas seeps up from the soil and can accumulate without you even noticing. I had a neighbor who tested his and found levels were way above the safe limit. Since you can't see or smell radon, the only way to know is to buy a test kit or hire a professional. If it's high, mitigation systems can vent the gas outside and make the basement safe again. It's definitely worth checking if you spend time down there.