A home has radon concentrations exceeding 50 pCi/L in the basement. What mitigation technique is most appropriate?

When addressing radon concentrations that exceed 50 pCi/L, the most effective and appropriate mitigation technique is Active Soil Depressurization. This technique is specifically designed to reduce radon levels in homes by actively drawing radon gas from beneath the building and venting it to the outside.

In situations where radon concentrations are significantly high, such as those above 50 pCi/L, Active Soil Depressurization is favored because it establishes a continuous flow of air that creates a negative pressure beneath the foundation. This pressure differential effectively prevents radon from entering the home. By utilizing a fan and a system of piping, this method is capable of significantly lowering radon levels to acceptable limits.

While passive ventilation can be helpful in some cases, it is less reliable than active methods, especially when radon levels are unusually high. Passive techniques rely on natural air currents and temperature differences, which may not be effective in all conditions. Radon-resistant construction can help prevent radon intrusion in new homes but is not applicable to existing structures. Sealing foundation cracks can be a supportive measure but alone does not adequately address the problem of elevated radon levels. Active Soil Depressurization offers a comprehensive solution for existing homes where radon concentrations pose a serious