Dayton, TN Radon Levels

Q: What EPA Radon Zone is Dayton in?

Dayton is in Rhea County, EPA Zone 3.

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

No homeowner radon tests have been submitted for Dayton yet, so readings from the closest cities and the Rhea 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 Dayton?

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

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

Dayton, TN Radon Facts

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

County Rhea County, TN

Zip Code 37321

Located in Rhea County along the Tennessee River, Dayton sits within the Cumberland Plateau region where limestone and shale formations create moderate radon potential. Testing data is currently limited for this southeastern Tennessee community, making professional radon assessment crucial for homeowners. The area's mix of homes with crawl spaces and slab foundations, combined with regional geology, warrants individual testing for each property.

7.60

pCi/L area average

Above EPA Action Level

Nearby homeowner readings average 7.60 pCi/L, based on 15 tests from 10 nearby cities. No readings have been submitted for Dayton yet, so the closest recorded data is shown as a benchmark. The EPA recommends taking action at or above 4.0 pCi/L.

4.0 EPA

10+

Dayton, TN Radon Mitigation

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

Need Radon Mitigation or Testing in Dayton?

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Radon Readings Near Dayton, TN

No homeowner tests have been submitted for Dayton 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
Dunlap	22.8 mi	14.00 pCi/L	1
Athens	23.2 mi	15.00 pCi/L	1
Cleveland	25.3 mi	5.33 pCi/L	3
Signal Mountain	30.3 mi	7.00 pCi/L	1
Crossville	32.3 mi	4.50 pCi/L	2
Chattanooga	35.1 mi	5.00 pCi/L	2
Sparta	38.9 mi	12.00 pCi/L	1
Loudon	40.8 mi	9.00 pCi/L	1

Rhea County Radon Profile

Rhea County is classified as EPA Radon Zone 3, the lowest predicted-risk tier, with modeled indoor screening averages below 2 pCi/L. User-submitted readings are still sparse within Rhea County itself, so the nearby measurements shown on this page provide the closest real-world picture of local radon conditions. Radon is the second leading cause of lung cancer in the United States, and a short-term test is the only way to confirm a specific home's level in Rhea County.

Radon FAQ for Dayton, TN

What EPA Radon Zone is Dayton in?

Dayton and the 37321 zip code are in Rhea 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 Dayton?

No homeowner radon tests have been submitted for Dayton yet. Because radon is driven by regional soil and bedrock geology, readings from the closest cities—and the Rhea County average—are the best available indicator of local conditions until Dayton 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 Dayton?

Radon mitigation in Dayton 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 Dayton?

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.