NRPP Radon Measurement Technician and Professional Questions and Answers Graded A+

NRPP Radon Measurement Technician and Professional Questions and Answers Graded A+ What is the EPA action level for Radon? 4 pCi/L What is the risk of smokers and non-smokers getting lung cancer from Radon? 62/1000 smokers 7/1000 non smokers What determines the risk of getting lung cancer from Radon? Concentration of Radon and RDPs and Length of Exposure Hoe does Radon enter the home? Radon gas moves through the ground due to air pressure differentials in the home, and up into the home through cracks or other openings in the foundation. Can also enter through well water and some building materials. How is radon formed? Decay of Uranium-238 into Radium-226 with the release of alpha particles, followed by the decay of Radium-226 into Rn-222 with the release of alpha particles How do we know about the effects of Radon? Epidemiological studies were completed on lung cancers in workers, especially miners. What are the 4 RDPs that Radon decays into? Polonium-218 Lead-214 Bismuth-214 Polonium-214 What is the most common form of a radon mitigation system? Active Soil Depressurization (ASD) True or False - Radon levels are the same in each house. False Why are radon concentrations higher in the winter? Houses are in closed conditions, which increases Radon concentrations Which RDP(s) damage the lungs? Polonium-214 and Polonium-218 True or False - There are no health risks if Radon concentrations are below 4 pCi/L. False What is the OSHA Occupational Radon Exposure Level for adults in a 40 hour work week? 100 pCi/L or 12 WLM/Year RDP cumulative exposure for 1 working year What are the requirements before conducting a short-term radon test? 1. Closed building conditions for at least 12 hours prior 2. Indoor temperature must be 65-80°F *Requirements and testing protocol must be told to homeowner prior to starting the test when possible *May want a non-interference agreement with homeowner *Request posting "Radon Test in Progress" How long can a short-term radon test be deployed? 46 hours-90 days, optimal time is 48 hours What is the purpose of a short-term