WHAT IS RADON GAS?
Radon is a chemical element with an assigned symbol of Rn and the atomic number 86. It is a radioactive, colorless, odorless, tasteless gas, occurring naturally as an indirect decay product of uranium or thorium. Its most stable isotope, 222Rn, has a half-life of 3.8 days. Radon is one of the
Radon is one of the densest substances that will remain a gas under normal conditions. It is also the only gas that contains radioactive isotopes and is considered a health hazard.
Radon gas is generated in rock and soil and creeps up through cracks or spaces between particles. Outdoor concentrations of radon are typically safe at about 0.4 picocuries per liter (pCi/l) of air. When radon gas seeps into poorly ventilated buildings through foundation cracks or openings, it can rapidly accumulate leading to unhealthy indoor air quality and serious health risks.