Jonesborough, TN Radon Levels
Check local Jonesborough radon levels and find certified testing and mitigation professionals to keep your home safe
Jonesborough, TN Radon Facts
Tennessee's oldest town, Jonesborough sits in Washington County where Appalachian geology creates significant radon potential. Local testing data shows an average level of 7.0 pCi/L, well above the EPA action threshold of 4.0 pCi/L. Historic homes and newer construction in this Johnson City metro area community should prioritize radon testing and mitigation given these elevated readings.
Based on 2 user-submitted radon tests for homes in Jonesborough, TN. The EPA recommends taking action at or above 4.0 pCi/L.
Jonesborough, TN Radon Mitigation
Professional radon mitigation is the most effective way to permanently lower radon levels and protect your household.
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Jonesborough, TN Radon Levels
User-submitted radon test readings from homes in the Jonesborough area.
| Radon Level | City | Home Age | Foundation |
|---|---|---|---|
| 6 pCi/L | Jonesborough, TN | 21-50 Years | Full Basement |
| 8 pCi/L | Jonesborough, TN | 0-20 Years | Partial Basement |
Have a radon test result for Jonesborough? Submit your reading to help other homeowners.
Radon Readings Near Jonesborough, TN
Compare radon levels in Jonesborough with the closest nearby cities that have user-submitted test data.
| City | Distance | Avg User Level | Readings |
|---|---|---|---|
| Telford | 4.3 mi | 12.00 pCi/L | 1 |
| Johnson City | 6.6 mi | 4.20 pCi/L | 5 |
| Limestone | 8.0 mi | 7.00 pCi/L | 1 |
| Kingsport | 16.4 mi | 5.00 pCi/L | 1 |
| Elizabethton | 16.4 mi | 7.33 pCi/L | 3 |
| Blountville | 18.0 mi | 20.00 pCi/L | 1 |
| Bluff City | 18.9 mi | 5.00 pCi/L | 1 |
| Bristol | 25.5 mi | 6.50 pCi/L | 2 |
Washington County Radon Profile
Because of its underlying geology, Washington County is mapped as EPA Radon Zone 1 — the most elevated classification — where predicted indoor screening averages exceed 4 pCi/L. Homeowner-submitted tests from 5 cities in Washington County average 6.00 pCi/L across 9 tests — 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 Washington County home regardless of zone or a neighbor's results.