“Radon gas is odorless, colorless, and tasteless, so you wouldn’t notice if you had an elevated level in your home. In fact, nearly all soil has some level of radon present, and approximately one out of every 15 homes in the United States has elevated radon levels, including homes in Alabama.
The highest potential in our state is in Central and North Alabama, but because radon comes from the soil – rather than building materials – any home may have an elevated radon level: new or old, well-sealed or drafty, with or without basements” (Al Dept of Public Health). (Picture courtesy of the Alabama Department of Public Health.)