What does the term "cross-check" refer to in radon monitoring?

The term "cross-check" in radon monitoring refers to placing calibrated and uncalibrated monitors side by side. This process is utilized to validate the accuracy and reliability of the measurements taken by the monitors. By comparing the readings from a properly calibrated monitor against those from an uncalibrated one, it is possible to identify any discrepancies that may arise due to calibration issues, ensuring that the data collected is trustworthy.

This method is critical in the radon testing process because it helps in verifying that the equipment is functioning correctly and that the results are valid. The practice supports the overall integrity of radon measurement by highlighting the need for regular calibration and maintenance of monitoring devices to ensure they provide accurate readings over time.