The formula \( WL = \frac{ER \times pCi/L}{100} \) is used to calculate which parameter?

The formula ( WL = \frac{ER \times pCi/L}{100} ) is specifically used to calculate the Working Level (WL) of radon decay products within a given environment. Working Level is a measure of the potential health risk associated with radon progeny exposure, making it critical for radon measurement and mitigation practices.

In the context of this formula, ( ER ) represents the Equilibrium Ratio, which is the ratio of the concentration of radon decay products to the concentration of radon gas itself. The term ( pCi/L ) refers to the measured concentration of radon in picocuries per liter of air. By multiplying these two components and applying the formula, one can effectively determine the Working Level, which reflects the amount of radioactivity from radon decay products present in the air.

Understanding this relationship is essential for radon measurement technicians, as monitoring the Working Level helps assess the potential health risks and aids in compliance with safety standards for radon exposure.