Radon in the Home
How Radon Enters Your Home
As a hazardous, odorless gas that cannot be detected through sight or smell, it’s impossible to discover radon in the home without professional radon testing. In fact, if radon lingers in the home for an excessive period of time, you can potentially put yourself in harm’s way.
Radon enters the home through the following areas:
- Cracks in the foundation & walls
- Floor drains
- Sump pumps
Radon gas can enter both old and new homes, regardless if there are visible cracks or not. In fact, your neighbor’s brand new home could have radon levels exceeding 4pCi/L while yours is 2.7pCi/L or vice versa. Homes which sit side-by-side can have completely different radon levels, so it’s critical to test for radon.
Radon in Well Water
Not as common as radon in air, radon can also enter the home through the use of well water. Areas that have high levels of uranium in the underlying granite or shale are prone to allowing radon enter the groundwater. When high levels of radon are found in your private well, you can potentially be exposed to radon poisoning by inhaling the water vapor when showering, washing dishes or doing the laundry. While the risk of lung cancer from breathing in radon in the air is much higher, it’s crucial to test your well water.
The most common methods of removing radon from your water are granular activated carbon (GAC) and aeration, which has been designated by the U.S. EPA as “the best available technology.” When you use our Find a Radon Professional form to get in touch with a radon contractor in your area, he or she will discuss which option is best for you.
View Radon Zone Maps produced by the U.S. Environmental Protection Agency to see the radon potential in counties throughout the country.
*Please note, EPA Radon Zone designations are guidelines and radon can be found in any home, While Zone 1 does indicate the highest potential for radon, this does not necessarily mean there is a radon problem, and Zone 3, which has the lowest radon potential, still can include homes with high radon levels.