Locations and reports
Radon in Asheville, North Carolina
EPA puts Buncombe County, where Asheville is, in Zone 1, its highest radon zone. Homes with elevated levels occur in all three zones, so only a test measures yours.
Data checked By Radon411Methodology
- Predicted
- Zone 1Highest predicted potential
- Measured
38.0% of 50 tests reported to CDC for Buncombe County (2022) were at or above 4 pCi/L- Your home
- Test to knowNo area figure here is a reading of your home.
The data
Asheville, What is published
What is published for Asheville
Radon data is published by county, not by city
Radon data is published by county, not by city. EPA assigns radon zones to counties, and CDC publishes radon test figures by county. Neither publishes a figure for Asheville, so every radon figure on this page belongs to a county and is labelled with it. Only a test tells you about one home.
Buncombe County has an EPA zone and its own CDC test figures, shown below. About 93,523 people live in Asheville.
Asheville, Counties
The county Asheville lies in
MeasuredEach county's own EPA zone and its own published CDC figures for 2022, the newest period any of them has. A county without a figure for that period is shown without one, never with a figure from another year.
Buncombe CountyZone 1Highest predicted potential
- 38.0%
- Reported tests at or above 4 pCi/L, 2022
- 2.5 pCi/L
- Median reported result
- 50 tests
- Tests reported to CDC
- 4
- Annual years on file
The median reported pre-mitigation result for 2022 was 2.5 pCi/L in Buncombe County.
CDC counts radon tests that were reported to it, not homes, and figures from few tests can swing widely from year to year. Each county’s report has its full history.
Predicted: EPA Map of Radon Zones, by county. Measured: CDC tracking data, by county, 2022.
Radon Action Brief
National Radon Action MonthPre-sale
The radon brief for Asheville, in one dated file.
- Your area's radon record, explained. EPA's zone and any CDC tests.
- Your plan to test this week. Which test, where it goes, how long.
- Fix costs and pros near you. Costs, EPA's checklist, listed pros.
Save 64%Sale price: $8.99Price after the sale: $25Ends Jan 31Then $25Sale ends January 31, then $25
Local help
Asheville, Local resources
Local resources for Asheville
Who to ask in North Carolina: its radon program, test kits and professionals.
- North Carolina Radon ProgramNCDHHSNorth Carolina’s radon program answers questions about testing, mitigation and the rules where you live.Visit the program’s page(opens in a new tab)
- Free and low-cost kitsAsk the program whether it has free or discounted kits, or compare kits you can buy.
- Compare kits
- Professionals in North CarolinaRadon testers and mitigators in North Carolina, each with how its listing was checked.
What North Carolina's program says
- Licensing of radon professionals
The North Carolina Radon Program is presently developing a Radon Proficiency Program as directed by Session Law 2023-91 House Bill 782 .
What it means
Asheville, Questions
Questions about radon in Asheville
What radon zone is Asheville in?
EPA's Map of Radon Zones classifies counties, not cities. Buncombe County is in Zone 1 (highest predicted potential). A zone is a prediction for a whole county and never tells you the level in one home.
How many radon tests come back high in Asheville's counties?
For 2022, the share of radon tests reported to CDC that were at or above 4 pCi/L was 38.0% in Buncombe County (50 tests). Each is that county's own figure, counting tests reported to CDC, not homes. Radon411 does not average or combine them into a figure for the city.
Should I test my home in Asheville?
Yes. Testing is the only way to know the radon level in a specific building. EPA recommends fixing a home when the radon level is 4 pCi/L or higher. EPA recommends considering a fix when the level is between 2 and 4 pCi/L. How to test a home.
The answers use the published figures of Buncombe County, the county Asheville lies in.
Explore
Asheville, Next steps
What to do next
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