Radon Center - Information about
radon and a list of quality radon contractors throughout the US.
Radon Environmental Effects - LiveStrong guide about radon. Radon is a
radioactive gas that has no color, odor or taste. It occurs naturally in small
concentrations in all soils, and in higher concentrations in granite, shale and
phosphates. From the soil, radon can sink into ground water systems or rise into
the atmosphere. Its greatest impact occurs when it becomes trapped and breaks
down inside of buildings.