If test results indicate levels between 2 and 4, what action is advised?

When test results indicate radon levels between 2 and 4 picocuries per liter (pCi/L), the recommended course of action is to consider fixing the building. Levels in this range are above the preferred action level, which is set at 4 pCi/L, but still warrant attention. The guidance is based on the understanding that exposure to radon can pose health risks, and even lower levels may contribute to long-term exposure.

Taking action to mitigate radon levels before they reach the highest risk category is a proactive approach to protecting health. While mitigation may not be legally mandatory until the levels reach 4 pCi/L or higher, considering remediation steps at this level is prudent. This might involve enhancing ventilation, sealing cracks in the foundation, or implementing a radon mitigation system to lower the radon concentration effectively.

The option to ignore the results is not advisable, as it overlooks potential health risks associated with radon exposure. Conducting additional testing only, without any consideration for mitigation, may delay necessary actions and expose occupants to unnecessary risk. While additional testing could provide more precise data, it should not replace the need for evaluating and addressing identified radon levels. Therefore, considering fixing the building is the appropriate reaction to results in this range