Which type of tests are required to evaluate the effectiveness of radon mitigation?

The necessity of using short-term tests to evaluate the effectiveness of radon mitigation is rooted in their ability to provide quick results that inform whether a radon mitigation system is functioning properly. Short-term tests typically last from two days to 90 days and are designed to quickly measure the radon concentration in a living area after mitigation efforts have been implemented.

By using short-term testing right after mitigation work is completed, homeowners and professionals can confirm that the levels of radon have decreased effectively and are below action levels recommended by health organizations. These results are crucial because timely feedback allows for immediate adjustment of mitigation strategies if radon levels are still elevated.

While long-term tests assess radon levels over a longer period (typically more than 90 days), their purpose is more about understanding typical radon exposure in a home rather than evaluating the immediate impact of mitigation efforts. Visual inspections and expert assessments might help in assessing the condition of a mitigation system but do not provide direct measurements of radon levels to determine effectiveness. Thus, short-term tests serve as the most direct and time-efficient means of assessing the success of radon mitigation strategies.