Radon Training - Certi.US - Quiz 4 well answered

Radon Training - Certi.US - Quiz 4A house was tested for radon and radon decay progeny. The results were 10 pCi/L and 0.08 WL. What would most likely account for these measurements? a. A weather front passed over the area during the test b. The forced air furnace was operating during the test c. Ceiling fans were operated during the test d. The ventilation rate is very low and has high particulate count in air - correct answer The ventilation rate is very low and has high particulate count in air Given a radon reading and a radon decay product reading, lets calculate the equilibrium factor using the equation on page 14 of the manual. - ER = WL X 100 / Rn - ER = 0.08 X 100 / 10 - ER = 8/10 = 0.8 or 80% This is higher than the typically assumed 50%, which means there are more decay products in the air than is typical. This would be caused by stagnant air or lots of particulates in the air. A radioactive element, which has a half-life of 30 days, was collected in a sealed container. If on January 1 it was determined the container held 100 grams of this specific element, how much of this same specific material would be in the container as of June 1 of the same year