A room has a Working Level of 0.52 and a radon concentration of 110 pCi/L. What is the room's equilibrium ratio?

To find the equilibrium ratio in a room with a known Working Level (WL) and radon concentration, you can use the formula that relates these two measurements. The equilibrium ratio can be calculated as the ratio of the Working Level to the corresponding radon concentration.

In this scenario, the Working Level is given as 0.52 WL, and the radon concentration is given as 110 pCi/L. To compute the equilibrium ratio, one would typically plug the values into the formula:

Equilibrium Ratio = Working Level (WL) / Radon Concentration (pCi/L)

To convert this into a compatible format, it's essential to first recognize that the relationship between radon concentration and Working Level is largely derived from decay products. Specifically, one Working Level represents a concentration of radon decay products that could produce a certain amount of alpha radiation in a given environment.

When calculated, the equilibrium ratio results in approximately 0.47, closely approximating the value represented among the choices. Given the provided choices, the calculated ratio rounds off to what is offered as the choice corresponding to answer C, demonstrating that the room's conditions yield an equilibrium ratio that reflects the balance of radon gases and their decay products effectively.

This value indicates that there is