Radon can enter and collect inside almost any home or other building through dirt floors, hollow block walls, cracks in the foundation floor and walls, sump pumps, openings around floor drains, joints and foundation openings for pipes, sewers and other utility connections. Radon can also enter homes through water supplies obtained from wells or from small water systems utilizing groundwater. Once inside, the gas can become trapped and pose a health risk.
Nearly One out of every 15 homes in the U.S. is estimated to have a high concentration at or above the EPA Action Level of 4 pCi/l. You cannot predict which homes will have high radon levels. Two identical homes next to each other can have different radon levels, depending on numerous variables, including how the home was constructed and lifestyle factors. The only way to know a building's radon level is to test.
Nevada Radon Education Program
The Nevada Radon Education Program is funded through a grant from the EPA to educate Nevadans about the health risk posed by elevated levels of radon in the home. The Extension program offers literature, educational presentations and low-cost radon test kits in many county Extension and partner offices.
Howe, S., 2019, How Radon Gas Enters Homes, Extension | University of Nevada, Reno. IP
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