Radon is a naturally occurring radioactive gas that can enter homes from the soil beneath them. You cannot see, smell, or taste radon, so testing is the only way to know if elevated levels are present. Long-term radon exposure is a health concern because the EPA identifies radon as the second leading cause of lung cancer overall and the number one cause of lung cancer among non-smokers.

Radon typically enters through openings where the home contacts the ground. This can include foundation cracks, gaps around pipes, sump pits, crawl spaces, floor drains, and other small openings in the basement or lower levels of the home.

Yes. Radon can be found in new homes, older homes, homes with basements, homes on slabs, crawl space homes, and even well-sealed homes. The EPA notes that radon has been found at high levels in every state, so the only way to know your home’s level is to test.

The only way to know is through radon testing. Because radon has no smell, color, or visible warning signs, a home can have elevated radon levels even if everything appears normal.

Yes. Newer homes can still have elevated radon levels. Construction style, soil conditions, foundation details, and ventilation can all affect radon levels, so age alone does not determine whether a home is at risk.

A radon test involves placing a testing device in the lowest livable area of the home under specific testing conditions. The device measures radon levels over a set period of time and provides results that help determine whether further action is recommended.

Most short-term radon tests take at least 48 hours. During the testing period, closed-house conditions are usually required, which means windows and exterior doors should remain closed except for normal entry and exit.

If elevated radon levels are found, a radon mitigation system may be recommended. The EPA recommends fixing homes when radon levels are 4.0 pCi/L or higher, and also suggests considering action for levels between 2.0 and 4.0 pCi/L because no level of radon exposure is considered completely risk-free.

Radon levels are commonly reduced through a radon mitigation system, which helps draw radon gas from beneath the home and vent it safely outside. A qualified radon mitigation professional can evaluate the home and recommend the proper system based on the foundation type and test results.