Nachi Radon Questions & Answer, 100% Correct | Grade A+

Radon is a radioactive gas that emanates from... : Rocks and soils Radon tends to concentrate in... : Enclosed spaces such as underground mines or houses What is recognized as the most important source of residential radon? : Soil gas infiltration Radon in building materials and water extracted from wells are less important factors in most circumstances : True Radon is a major contributor to the ionizing radiation dose received by the general population : True 2 Studies on indoor radon and pancreatic cancer provide strong evidence of a substantial number of cases in general population T or F? : False. Radon can cause lung cancer Radon is the second leading cause of lung cancer after... : Smoking Most radon induced lung cancer cases occur among smokers due to a strong combined effect. True or false? : True What is the primary radon prevention and mitigation strategy? : Sealing radon entry routes and reversing the air pressure differences between the indoor occupied space and the outdoor soil through different soil depressurization techniques. Radon gas is a manufactured gas. True or false? : False. Radon gas is of natural origin. Radon is a noble gas formed from : Radium 3 Radium is a decay product of : Uranium