Perhaps a better title for this blog would be “Indoor Air Quality” but radon is just one part of that, albeit a very important one. Here’s why…
To put it bluntly, radon is the second leading cause of lung cancer. Or looking at it another way, radon is the number one cause of lung cancer among non-smokers.
What is radon?
Radon is a radioactive gas with the symbol Rn.
Where does radon come from?
Radon-222 is the decay product of radium-226, and both are present in almost all rock, soil and water.
How does radon get into your house?
Typically, radon rises up through the ground and into your home through holes in the foundation, but it can also enter your house through well water.
What is the average radon level?
In the United States, a 1991 radon survey indicated the average indoor radon level is about 1.3 picocuries per liter (pCi/L), while the average outdoor level is about 0.4 pCi/L.
What is the indoor ‘action level’ for radon?
Houses with a radon level of 4 picocuries per liter (pCi/L) of air or higher, typically take steps to reduce the radon level.
How are radon levels reduced?
A fan system draws radon from under your house, through a large pipe, and vents it to the outside, above the roofline.