If you live on the East Coast between the Carolinas and Maine, you are sitting on geological features that contain uranium. Uranium is a radioactive element, and like all radioactive elements, it decays. In this case, it decays into radium and then radon.
Read MoreRadon is an element, number 86 on the periodic table. Radon gas is the byproduct of decaying uranium - a naturally occurring, radioactive metal found all over the world. Central Pennsylvania has a particularly high concentration of uranium in the soil and bedrock beneath our state.
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