Charlton, MA Radon Levels
Check local Charlton radon levels and find certified testing and mitigation professionals to keep your home safe
Charlton, MA Radon Facts
Located in Worcester County within Massachusetts' central highlands, Charlton has recorded concerning radon levels of 13.0 pCi/L in recent testing data. This reading significantly exceeds the EPA's 4.0 pCi/L action threshold, reflecting the area's granite bedrock and glacial till soils that facilitate radon gas production and accumulation. Given these elevated levels across the Worcester Metro region, professional radon testing and likely mitigation are essential considerations for all local homeowners.
Based on 1 user-submitted radon test for homes in Charlton, MA. The EPA recommends taking action at or above 4.0 pCi/L.
Charlton, MA Radon Mitigation
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Charlton, MA Radon Levels
User-submitted radon test readings from homes in the Charlton area.
| Radon Level | City | Home Age | Foundation |
|---|---|---|---|
| 13 pCi/L | Charlton, MA | 21-50 Years | Full Basement |
Have a radon test result for Charlton? Submit your reading to help other homeowners.
Radon Readings Near Charlton, MA
Compare radon levels in Charlton with the closest nearby cities that have user-submitted test data.
| City | Distance | Avg User Level | Readings |
|---|---|---|---|
| Southbridge | 5.6 mi | 4.00 pCi/L | 1 |
| Leicester | 7.3 mi | 9.00 pCi/L | 1 |
| Auburn | 8.0 mi | 7.00 pCi/L | 1 |
| Webster | 8.5 mi | 6.50 pCi/L | 2 |
| Millbury | 11.1 mi | 4.00 pCi/L | 1 |
| Worcester | 12.2 mi | 17.67 pCi/L | 3 |
| Douglas | 12.5 mi | 12.00 pCi/L | 4 |
| South Grafton | 14.3 mi | 13.00 pCi/L | 1 |
Worcester County Radon Profile
The bedrock and soils beneath Worcester County are classified by the EPA as Radon Zone 1, the highest-risk tier, with predicted average indoor screening levels above 4 pCi/L. Homeowner-submitted tests from 28 cities in Worcester County average 9.12 pCi/L across 41 tests — above the EPA's 4 pCi/L action level, reinforcing the need for testing across the county. 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 Worcester County.