Radon gas enters the home through small openings in the home's foundation and wall penetrations such as pipe entrances and cracks in the walls or floor. Radon is odorless, tasteless and invisible, but causes damage even though you can't feel its effects.
It can also be found in well water, which you cannot taste. Having a radon test conducted is the only way to know if the problem exists. While some still believe that radon gas cannot be fixed, the opposite is true. Radon mitigation is very simple and common today.