What is the typical range for the Equilibrium Ratio (ER)?

The typical range for the Equilibrium Ratio (ER) when dealing with radon concentration measurements is indeed between 30-70%. This range is significant because it indicates the relationship between radon levels in the air and those in water or soil, which helps practitioners determine potential radon exposure risks in a given environment.

An ER within this range suggests that the radon concentration is stable and reflects a relatively consistent relationship with the source of radon, allowing for appropriate mitigation strategies to be developed. Understanding this range is essential for radon mitigation specialists as it informs decisions on how to effectively reduce radon levels in residential and commercial spaces.

Knowing the common ER range assists specialists in assessing radon levels when conducting tests and ensuring that mitigation measures are properly calibrated. This is particularly crucial for maintaining safety as elevated levels of radon are linked to health risks, including lung cancer. Overall, having a solid understanding of the typical ER informs remediation actions and enhances residential safety.