What happens when the average of two radon test results is calculated?

When calculating the average of two radon test results, it is important to consider the significance of the action level. The action level is a specific radon concentration threshold established by health guidelines, which prompts mitigation efforts if exceeded. If one test result is above this action level and the other is below it, averaging these results may not provide a clear or meaningful assessment because the risks identified in the results differ significantly.

In such cases, combining the two results can lead to misinterpretation of the radon levels in the environment. The higher value indicates a potential health risk that necessitates further action, while the lower value does not pose an immediate concern. Therefore, when interpreting radon test data, it is essential to treat the results in context, which includes not averaging them if they have such contrasting implications regarding health risk.

Using just the higher test result would typically be the most prudent action in scenarios where tests yield such mixed results, as it reflects the higher level of potential exposure and ensures that individuals are informed of the more hazardous condition. This approach supports better decision-making regarding radon mitigation efforts.