What Is Radon Testing?
Radon Testing: A test for radon, a radioactive gas from the soil that can build up in homes.
Radon is an odorless radioactive gas released from soil and rock. It can build up in homes, especially basements, and is a leading cause of lung cancer after smoking.
Testing
A short-term test, usually 48 hours, is placed in the lowest livable level during your inspection period. Results are reported in picocuries per liter (pCi/L).
What the numbers mean
The EPA recommends fixing homes at or above 4 pCi/L and considering it between 2 and 4.
Fixing it
A radon mitigation system, usually a vent pipe and fan that draws gas from under the foundation, typically costs $800 to $2,500. It's a common repair request item.