What is the recommended protocol for testing a continuous radon monitor?

The recommended protocol for testing a continuous radon monitor before and after each measurement is essential for ensuring the accuracy and reliability of the results obtained from the monitor. This practice helps to verify that the device is functioning correctly and is calibrated properly at the beginning of the measurement period, which is crucial for obtaining valid data that reflects true radon levels in the environment being tested.

By conducting tests before the measurement, users can establish a baseline for the device, confirming that it is operating within the expected parameters. Testing after the measurement allows for the assessment of any potential drift or errors that may have occurred during the testing period. Continuous monitoring requires a high level of precision, as radon levels can vary significantly over time; therefore, close attention to the device's performance is vital for drawing accurate conclusions from the collected data.

The other options suggest less frequent testing protocols, which could potentially overlook issues that arise with the monitoring equipment in between measurements, thereby compromising the integrity of the test results.