Radon is a colorless, extremely toxic radioactive gas. It is found in almost all solid rock, soil and water, though at varying levels. It's formed by the ongoing decay of Uranium. It's naturally occurring and can enter and build up in your home without you being aware of it. The radon that escapes into the atmosphere is not harmful but too much in your home can cause major health problems. The radon is measured by picocuries per liter (pCi/L). The average … (37 comments)
What is Radon? Do I need to test for it? 
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