CHILDCARE FACILITIES If a child care facility detects high radon levels— typically at or above 4.0 pCi / L( 148 Bq / m ³)— it should take immediate action to protect the health of the children and staff. First, the facility should confirm the results with a follow-up radon test to ensure accuracy. While awaiting mitigation, temporary measures such as increasing ventilation and limiting time spent in affected areas can help reduce exposure. The facility must then arrange for a qualified radon mitigation professional to assess the building and install a permanent solution, such as a subslab depressurization system. Once mitigation is complete, follow-up testing should confirm that radon levels have been reduced to safe limits. Throughout the process, it is important to communicate openly with parents, staff, and local health authorities to maintain transparency and ensure everyone is informed about the steps being taken to ensure a safe environment for children.