Radon is a naturally occurring, odorless radioactive gas that causes lung cancer. Over 40% homes in our service area have radon levels above the US EPA guideline of 4 pCi/L for the year average on the main floor.
The following highlights are from the guidance for radon testing in real estate transactions, given in the US EPA's 1993 publications, Home Buyer's and Seller's Guide to Radon.
- The minimum measurement duration is 48 hours.
- Maintain closed-house conditions on all floors during the test, and for 12 hours before it if the test lasts less than four days.
- Test location: the lowest level of the home that is suitable for occupancy without renovations. In a room that will be frequently occupied. Not in unfinished space.* Not in a bathroom, kitchen or laundry room. At least 20" above the floor, away from windows, doors, outside walls, heat sources, humidity and breezes.
- For more information read the U.S. EPA Home Buyer's and Seller's Guide to Radon.