Radon Measurement Final Exam All Possible Questions and Answers 2024 with complete solution

Radon Measurement Final Exam All Possible Questions and Answers 2024 with complete solution What are the characteristics of radon? Is not detected by human senses, is naturally occurring, and does not chemically react. The nucleus of an atom consists of protons and neutrons What is the characteristic of an atom that determines which element it is? The number of protons= atomic number What are the annual average U.S outdoor and residential indoor radon levels? Outdoor= 0.4 pCi/L Indoors= 1.3 pCi/L What is an ion? an atom or molecule with a net electric charge due to the loss or gain of one or more electrons. What does one picoCurie per liter of radon produce? 2.2 disintegrations per minute within a liter of air. How many hours does it take for radon to reach secular equilibrium with its short-lived decay products? 4 Hours If the radon concentration is 8 pCi/L and the ER is 0.4, what is the working level of radon decay products? 0.032 WL If the working level concentration is 0.03 WL and ER is 0.4, what is the radon concentration in the room? 7.5 pCi/L If the working level concentration is 0.06 and the radon concentration is 10 pCi/L, what is the equilibrium ratio? 0.6 What is a measured in units called working levels? A measure of the amount of radiation produced by the radon decay products. One-hundred (100) pCi/L of radon is inside a radon proof container. If the container is re-measured in 11 1/2 days later, approximately how much radon is left in the container? 13 pCi/L Which of the following radon progeny groups produce the alpha radiation representing the greatest health concerns associated with radon? Polonium 214 and Polonium 218 Which of the following types of radiation delivers the most energy per single impact to living tissue? Alpha Radiation What composes an alpha particle? 2 Protons and 2 Neutrons An equilibrium ratio is 0.4 typically been used when converting from working level measurements to pCi/L. What does this mean? Of the radon decay products that were produced from the radon in the room, 40 percent were measurable.