Duff, TN Radon Levels

Q: What EPA Radon Zone is Duff in?

Duff is in Campbell County, EPA Zone 3.

Q: Why are radon readings shown from areas near Duff?

No homeowner radon tests have been submitted for Duff yet, so readings from the closest cities and the Campbell County average are used as the best available indicator of local conditions. The EPA recommends testing every individual home.

Q: How much does radon mitigation cost in Duff?

Radon mitigation typically costs between $800 and $2,000. Most standard systems fall in the $1,000-$1,500 range.

Check local Duff radon levels and find certified testing and mitigation professionals to keep your home safe

Duff, TN Radon Facts

EPA Radon Zone Zone 3 — Low Risk < 2.0 pCi/L (Zone 3)

County Campbell County, TN

Zip Code 37729

This small Campbell County community within the Knoxville Metro area sits in Tennessee's Cumberland Mountains region, where sedimentary rock formations can produce variable radon levels. While specific testing data for zip code 37729 remains limited, the area's EPA Zone 3 classification suggests lower predicted radon potential. Residents should still consider testing, particularly in homes with basements or crawl spaces common to the region.

12.00

pCi/L area average

Above EPA Action Level

Campbell County average: 12.00 pCi/L, based on 1 user-submitted test across 1 city in the county. No homeowner readings have been submitted for Duff itself yet, so this county figure is the closest available benchmark. The EPA recommends taking action at or above 4.0 pCi/L.

4.0 EPA

10+

Duff, TN Radon Mitigation

Professional radon mitigation is the most effective way to permanently lower radon levels and protect your household.

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Radon Readings Near Duff, TN

No homeowner tests have been submitted for Duff yet. The closest cities with user-submitted radon data are shown below — explore them to gauge local conditions. Radon varies by home, so testing is the only way to know your level.

City	Distance	Avg User Level	Readings
La Follette	6.3 mi	12.00 pCi/L	1
Maynardville	22.1 mi	5.00 pCi/L	1
Oak Ridge	36.1 mi	7.00 pCi/L	2
Oliver Springs	36.7 mi	6.00 pCi/L	1
Knoxville	37.6 mi	4.00 pCi/L	1
Jefferson City	41.5 mi	5.00 pCi/L	1
Morristown	46.6 mi	7.00 pCi/L	2

Campbell County Radon Profile

The EPA maps Campbell County as Radon Zone 3, the lowest predicted classification, with modeled indoor screening levels under 2 pCi/L. Homeowner-submitted tests from 1 city in Campbell County average 12.00 pCi/L across 1 test — above the EPA's 4 pCi/L action level, reinforcing the need for testing across the county. As the second leading cause of lung cancer in the U.S., radon warrants testing in every Campbell County home regardless of zone or a neighbor's results.

Radon FAQ for Duff, TN

What EPA Radon Zone is Duff in?

Duff and the 37729 zip code are in Campbell County, which has an EPA assigned Radon Zone of 3. A zone of 3 predicts an average indoor radon screening level less than 2 pCi/L.

Why are radon readings shown from areas near Duff?

No homeowner radon tests have been submitted for Duff yet. Because radon is driven by regional soil and bedrock geology, readings from the closest cities—and the Campbell County average—are the best available indicator of local conditions until Duff homeowners submit their own results. The EPA still recommends testing every individual home, since levels can vary significantly from house to house.

How much does radon mitigation cost in Duff?

Radon mitigation in Duff typically costs between $800 and $2,000. Most homes with standard basements can be mitigated with a sub-slab depressurization system in the $1,000–$1,500 range. Factors that can increase cost include complex foundations, crawl spaces, or very high radon levels.

Should I test for radon if I'm buying a home in Duff?

Yes. Radon testing should be part of every home purchase. A short-term radon test is typically included as part of the home inspection process and costs $150–$250. If elevated levels are found, you can negotiate mitigation as part of the sale.