Are there protocols for commercial buildings?
EPA has not developed radon testing protocols for commercial buildings. However, EPA has developed testing protocols for schools. These protocols call for initial short-term measurements to be taken simultaneously in all frequently-occupied rooms that are in contact with the ground. Follow-up tests should be performed for every room that initially tests 4 pCi/L or greater. For follow-up tests, use a short-term test if results are needed quickly; use a long-term test to better understand the average radon level for a school year.
