Medford, MA Radon Levels
Check local Medford radon levels and find certified testing and mitigation professionals to keep your home safe
Medford, MA Radon Facts
Medford in Middlesex County shows an average radon level of 8.0 pCi/L, which exceeds the EPA's 4.0 pCi/L action threshold and indicates the need for mitigation systems. This Boston Metro community sits on glacial deposits where radon can accumulate in the area's dense urban housing stock. Residents in zip code 02155 should test their homes, particularly those with basement spaces common in this region's older architecture.
Based on 3 user-submitted radon tests for homes in Medford, MA. The EPA recommends taking action at or above 4.0 pCi/L.
Medford, MA Radon Mitigation
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Medford, MA Radon Levels
User-submitted radon test readings from homes in the Medford area.
| Radon Level | City | Home Age | Foundation |
|---|---|---|---|
| 5 pCi/L | Medford, MA | 100+ Years | Full Basement |
| 4 pCi/L | Medford, MA | 100+ Years | Full Basement |
| 15 pCi/L | Medford, MA | 51-99 Years | Full Basement |
Have a radon test result for Medford? Submit your reading to help other homeowners.
Radon Readings Near Medford, MA
Compare radon levels in Medford with the closest nearby cities that have user-submitted test data.
| City | Distance | Avg User Level | Readings |
|---|---|---|---|
| Somerville | 1.8 mi | 4.50 pCi/L | 4 |
| Malden | 2.6 mi | 5.00 pCi/L | 2 |
| Arlington | 2.9 mi | 4.00 pCi/L | 2 |
| Everett | 3.0 mi | 4.50 pCi/L | 2 |
| Winchester | 3.1 mi | 4.00 pCi/L | 2 |
| Melrose | 3.7 mi | 5.00 pCi/L | 3 |
| Stoneham | 4.6 mi | 9.67 pCi/L | 3 |
| Woburn | 5.2 mi | 16.33 pCi/L | 3 |
Middlesex County Radon Profile
The bedrock and soils beneath Middlesex 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 46 cities in Middlesex County average 7.28 pCi/L across 90 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 Middlesex County.