Mountain City, TN Radon Levels
Check local Mountain City radon levels and find certified testing and mitigation professionals to keep your home safe
Mountain City, TN Radon Facts
Located in Johnson County along Tennessee's northeastern border, Mountain City sits in the Appalachian highlands where uranium-bearing granite bedrock contributes to elevated radon potential. Local testing data shows an average radon level of 20.0 pCi/L, which significantly exceeds the EPA action level of 4.0 pCi/L. Given the mountainous terrain and geological conditions in zip code 37683, all homeowners should prioritize professional radon testing and mitigation.
Based on 1 user-submitted radon test for homes in Mountain City, TN. The EPA recommends taking action at or above 4.0 pCi/L.
Mountain City, TN Radon Mitigation
Professional radon mitigation is the most effective way to permanently lower radon levels and protect your household.
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Mountain City, TN Radon Levels
User-submitted radon test readings from homes in the Mountain City area.
| Radon Level | City | Home Age | Foundation |
|---|---|---|---|
| 20 pCi/L | Mountain City, TN | 21-50 Years | Full Basement |
Have a radon test result for Mountain City? Submit your reading to help other homeowners.
Radon Readings Near Mountain City, TN
Compare radon levels in Mountain City with the closest nearby cities that have user-submitted test data.
| City | Distance | Avg User Level | Readings |
|---|---|---|---|
| Bristol | 21.6 mi | 6.50 pCi/L | 2 |
| Elizabethton | 23.1 mi | 7.33 pCi/L | 3 |
| Bluff City | 23.5 mi | 5.00 pCi/L | 1 |
| Blountville | 31.0 mi | 20.00 pCi/L | 1 |
| Johnson City | 33.1 mi | 4.20 pCi/L | 5 |
| Jonesborough | 39.4 mi | 7.00 pCi/L | 2 |
| Kingsport | 40.2 mi | 5.00 pCi/L | 1 |
| Telford | 43.0 mi | 12.00 pCi/L | 1 |
Johnson County Radon Profile
The soils and bedrock of Johnson County place it in EPA Radon Zone 2, a moderate-risk classification with predicted indoor averages of 2 to 4 pCi/L. Homeowner-submitted tests from 1 city in Johnson County average 20.00 pCi/L across 1 test — above the EPA's 4 pCi/L action level, reinforcing the need for testing across the county. Since radon is the second leading cause of lung cancer nationally, the EPA urges every household in Johnson County to test, as levels can differ between neighboring homes.