What is the minimum recommended deployment period for long-term radon detectors to accurately evaluate annual exposures?

The minimum recommended deployment period for long-term radon detectors to accurately evaluate annual exposures is six months. This duration is significant because radon levels can fluctuate based on various environmental factors such as temperature, humidity, and ventilation. By monitoring for at least six months, the measurement captures seasonal variations and provides a more representative average of radon exposure over time.

Shorter deployment periods may not adequately reflect these fluctuations and could lead to inaccurate assessments of long-term radon exposure, potentially resulting in an incomplete understanding of health risks. Thus, adhering to the six-month minimum ensures that the data collected is robust enough for reliable interpretation and public health decision-making.