What is the recommended action for homes that test at or above 4 pCi/L of Radon?

When a home tests at or above 4 pCi/L of radon, the recommended action is to remediate immediately. This action is based on the established guidelines from environmental health organizations, which indicate that levels of radon at or above this threshold significantly increase the risk of lung cancer over a lifetime of exposure.

Radon is a radioactive gas that can accumulate in homes, particularly in basements and lower levels. Since it is colorless and odorless, testing is the only way to know if radon levels are elevated. Once it is determined that the levels are at or above the action threshold, immediate remediation is essential to reduce the radon concentration to safer levels.

Methods for remediation can include increasing ventilation, sealing entry points, or installing radon mitigation systems, which actively draw radon from below the home and vent it outside. By taking prompt action, homeowners can protect their health and the health of their families.

In contrast to ignoring the results, considering the levels safe, or just monitoring periodically, immediate remediation is the only appropriate response to ensure safety and reduce health risks associated with radon exposure.