What is the primary concern when measuring radon levels in a home?

The primary concern when measuring radon levels in a home is radon concentration levels. Radon is a colorless, odorless gas that can accumulate in homes, particularly in lower levels such as basements. The concentration of radon in the air is what poses health risks, as prolonged exposure to high levels can lead to serious health issues, including lung cancer.

Understanding the concentration levels helps in determining whether mitigation strategies are necessary. If radon levels are found to exceed the EPA's recommended action level, it indicates a need for further assessment and possible remediation to reduce exposure.

Factors such as proper ventilation, cost of mitigation, and duration of the test, while relevant to the overall strategy for managing radon exposure, do not address the immediate concern of how much radon is present in the home at the time of testing. The key focus must remain on determining and addressing radon concentrations to ensure the safety and health of the occupants.