radon in basement

https://radontestcosttalk.brightsora.com/posts/what-you-need-to-know-about-radon-test-cost-for-your-st.-louis-home

A few weeks ago, I bought a home test kit for radon in basement levels. It's a silent, invisible gas that seeps in through cracks in the foundation, and the only way to know if it's accumulating is to actually measure it. I left the small monitor in the corner of the utility room for three days, then sent it off to a lab. The results came back at 3.8 picocuries per liter, just above the EPA action level of 4.0 pCi/L, so now I'm scheduling a professional to install a mitigation system before it…