Gloucester, MA Radon Levels
Check local Gloucester radon levels and find certified testing and mitigation professionals to keep your home safe
Gloucester, MA Radon Facts
Perched along the Atlantic coast in Essex County within the Boston Metro area, Gloucester records an average radon level of 8.4 pCi/L, significantly exceeding the EPA action level. The historic seaport sits on granite bedrock and glacial deposits that contribute to elevated radon production. Coastal homes and inland properties in zip code 01930 often feature full basements typical of New England construction, providing enclosed spaces where radon readily accumulates.
Based on 5 user-submitted radon tests for homes in Gloucester, MA. The EPA recommends taking action at or above 4.0 pCi/L.
Gloucester, MA Radon Mitigation
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Gloucester, MA Radon Levels
User-submitted radon test readings from homes in the Gloucester area.
| Radon Level | City | Home Age | Foundation |
|---|---|---|---|
| 5 pCi/L | Gloucester, MA | 51-99 Years | Full Basement |
| 20 pCi/L | Gloucester, MA | 0-20 Years | Full Basement |
| 6 pCi/L | Gloucester, MA | 100+ Years | Full Basement |
| 7 pCi/L | Gloucester, MA | 100+ Years | Full Basement |
| 4 pCi/L | Gloucester, MA | 0-20 Years | Full Basement |
Have a radon test result for Gloucester? Submit your reading to help other homeowners.
Radon Readings Near Gloucester, MA
Compare radon levels in Gloucester with the closest nearby cities that have user-submitted test data.
| City | Distance | Avg User Level | Readings |
|---|---|---|---|
| Rockport | 3.7 mi | 4.00 pCi/L | 1 |
| Beverly | 11.2 mi | 7.00 pCi/L | 1 |
| Marblehead | 13.0 mi | 3.00 pCi/L | 1 |
| Rowley | 13.6 mi | 8.00 pCi/L | 1 |
| Topsfield | 14.1 mi | 7.00 pCi/L | 3 |
| Danvers | 14.2 mi | 3.75 pCi/L | 4 |
| Swampscott | 15.8 mi | 4.50 pCi/L | 2 |
| Peabody | 15.9 mi | 5.00 pCi/L | 1 |
Essex County Radon Profile
Essex County falls in EPA Radon Zone 1, meaning the local uranium-bearing geology is predicted to drive average indoor radon screening levels above the EPA's 4 pCi/L action threshold. Homeowner-submitted tests from 25 cities in Essex County average 6.63 pCi/L across 43 tests — 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 Essex County to test, as levels can differ between neighboring homes.