Radon is a naturally occurring radioactive gas that has no color, odor, or taste, making it impossible to detect without specialized testing equipment. Long-term exposure to elevated radon levels can pose serious health risks.

Radon forms as uranium naturally breaks down in soil, rock, and groundwater. Because radon is radioactive, it can accumulate inside homes and buildings and may become hazardous when people are exposed to it over extended periods.

Fact: In the greater St. Louis area, approximately 1 out of every 3 homes has radon levels at or above the EPA action level of 4.0 pCi/L