What is the deployment duration for a short term radon measurement device?

The correct answer pertains to the standard definition of short-term radon measurement, which typically lasts from 2 to 90 days. This duration is crucial for capturing a representative radon concentration over a period that balances the need for timely results with the ability to account for fluctuations in radon levels. Short-term measurement methods are often utilized in situations where quick assessments are necessary, such as real estate transactions or immediate health concerns. By allowing a measurement period of at least two days, the device can adequately reflect day-to-day variations in radon levels, while extending up to 90 days provides a broader average that can better accommodate seasonal changes and environmental factors. Such a range ensures that the results are reliable and actionable, aiding in making informed decisions regarding radon mitigation or further testing if elevated levels are detected.