Which of the following best describes a Continuous Sample?

A Continuous Sample is characterized by its ability to provide real-time measurement of radon levels, often recording data at short intervals, such as hourly. This allows not only for the detection of radon concentrations but also for the monitoring of trends over time, capturing variations that may occur throughout the day. The functionality of a continuous measurement device enables it to provide a more comprehensive understanding of radon exposure by offering both immediate readings and an average result over the sampled period. This contrasts with other methods that may only provide a snapshot of radon levels or an average based on discrete measurements taken at longer intervals. Thus, the option highlighting the continuous recording and trend analysis succinctly captures the essence of what a Continuous Sample entails.