What kind of testing deployment is used to measure indoor radon concentrations?

The correct choice is the one that focuses on short-term and long-term testing deployment for measuring indoor radon concentrations. This is essential because radon levels can fluctuate based on various factors, including seasonal changes, weather patterns, and occupancy.

Short-term testing usually involves devices that measure radon levels over a period of two to seven days, providing a snapshot of radon concentrations during that time. This method is often used for quick assessments, particularly when urgent decisions are needed. On the other hand, long-term testing typically spans three months to a year, offering a more comprehensive understanding of radon exposure in a dwelling. This extended period accounts for variations in radon levels and gives a better representation of the average exposure over time.

Combining both types of testing allows for an accurate evaluation of radon risks in indoor environments. Continuous monitoring systems can provide real-time data, but they may not capture the variability as effectively as the combination of short-term and long-term tests. Seasonal testing models might take into account changes throughout the year but don’t specifically address the immediate and long-term risks as thoroughly as short-term and long-term testing do. Thus, utilizing both methods gives a more complete picture of indoor radon exposure.