Radon Testing Company Salt

When I bought my first home in St. Louis, Missouri, I thought the home inspection covered everything. The inspector walked through the basement, checked the furnace, and poked at the foundation. He even ran a short-term radon test, a little charcoal canister that sat in the corner for a few days. The lab report came back below the EPA action level, so I signed the papers and moved in. A few months later, a friend who works in indoor air quality suggested I get a second opini