What is the minimum length of a short-term radon test that is considered acceptable?

A short-term radon test is designed to measure radon levels in a home over a limited period, and the minimum acceptable duration for such tests is 48 hours. This timeframe allows for the capture of radon concentration variations, providing a more reliable representation of the indoor radon levels.

Testing for a shorter duration, such as 24 or 36 hours, may not capture enough data about radon fluctuations or provide a sufficiently accurate average, which is essential for understanding the potential health risks radon poses to occupants. Thus, the standardized minimum of 48 hours ensures a more accurate assessment, aligning with protocols established by organizations dedicated to radon measurement.