What is the minimum testing duration for a short-term radon test?

The minimum testing duration for a short-term radon test is typically less than four days. This duration is established to ensure that the radon levels can be accurately measured, as radon concentrations can fluctuate significantly based on various factors, such as weather conditions and building changes. Testing for a duration less than four days allows for a more representative snapshot of the radon levels in a home or building, ensuring that transient spikes in radon do not skew the results.

Short-term testing is often recommended for initial screening or when quick results are necessary, while longer-term tests may provide a more comprehensive view of radon levels over time. However, it’s critical to adhere to the established guidelines for duration, which in this case, is less than four days, to ensure the validity and reliability of the test results.