An official website of the State of Oregon
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The Oregon Public Health Division recommends that
all homes test for radon regardless of the risk level assigned to the home's geographic location.
Oregon Radon Awareness Program (ORAP) asks radon test kit manufacturers to voluntarily submit short-term and long-term radon tests that have been conducted mainly by residents of single-family homes. With the information provided by test kit manufacturers, ORAP uploads the results to an interactive map and updates the radon risk level ZIP code table. This information is used to identify radon risk levels in Oregon.
Map of Radon Risk in Oregon Radon Risk Level ZIP Code Table Radon Risk Level Description
The following Oregon counties require radon resistent new construction (RRNC):
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