The Oregon Public Health Division recommends that ALL residences be tested for radon regardless of the risk level assigned to the home’s geographic location.
You can easily test your home by following these steps recommended by EPA. If your radon levels are above 4 pCi/liter, the Public Health Division and the Environmental Protection Agency (EPA) recommend that further action be taken to lower the concentration below that level.
The data presented in the links below was compiled by the Oregon Public Health Division. It contains long-term radon tests (more than 90 days) and short-term radon tests (2-90 days) that have been conducted primarily by homeowners. Indoor radon levels can be influenced by weather, season, geology, type of construction and heating, ventilation and air conditioning systems. Because of this, radon levels may not be consistent among a group of homes, even those next door to each other.
*if your zip code has no risk level assigned, you may be eligible for a free test kit, call or email us today!
To understand how the radon risk scores (green/yellow/red rankings) were determined, please review the last page of Table of Radon Risk Levels in Oregon by Zip Code (pdf). Indoor radon concentrations are influenced by weather, season, geology, and type of construction as well as heating, ventilation and air conditioning systems. The maps and table provided here should not be used to substitute for radon testing of an individual home. The only way to know if you have high radon levels in your home is to test YOUR home.
The following Oregon counties have Radon Mitigation Code Requirements for new construction: Baker, Clackamas, Hood River, Multnomah, Polk, Washington, and Yamhill counties.