What is the Working Level of a room with an equilibrium ratio of 0.5 and a radon concentration of 6 pCi/L?

To determine the Working Level (WL) based on the provided equilibrium ratio and radon concentration, first, it is important to understand the concept of equilibrium ratio. The equilibrium ratio is the ratio of the concentration of radon progeny (decay products) to the concentration of radon itself.

In this scenario, the equilibrium ratio is 0.5, which indicates that half of the maximum potential activity of radon progeny is present in the room. The radon concentration given is 6 pCi/L.

To convert the radon concentration into Working Levels, the formula typically used is:

[ \text{WL} = \text{Radon concentration (pCi/L)} \times \text{Equilibrium Ratio} \times 0.1 ]

Applying the numbers:

1. Radon concentration = 6 pCi/L

2. Equilibrium ratio = 0.5

Substituting these values into the formula results in:

[ \text{WL} = 6 , \text{pCi/L} \times 0.5 \times 0.1 ]

Calculating this gives:

[ \text{WL} = 6 \times 0.5 \times 0