If the initial radon test result is 8.5, what is the next step?

When an initial radon test result comes back at 8.5 pCi/L, it indicates that the radon level in that environment is significantly above the action level of 4.0 pCi/L set by the U.S. Environmental Protection Agency (EPA). The immediate next step in response to such a high radon level is to conduct a short-term test.

A short-term test provides a quick assessment that can help confirm the elevated level so that appropriate mitigation measures can be taken as soon as possible. This type of testing usually lasts from two to seven days, providing a faster turnaround compared to long-term tests, which can take several months. Given the health risks associated with high radon exposure, prompt follow-up with a short-term test is crucial to ensure accurate data is obtained for subsequent decision-making regarding mitigation strategies.

Performing a long-term test right away may not yield timely enough information for urgent follow-up actions, while postponing the re-test or doing nothing could lead to prolonged radon exposure and potential health risks. Hence, the decision to immediately conduct a short-term test aligns with best practices in radon management and health safety.