Needham, MA Radon Levels
Check local Needham radon levels and find certified testing and mitigation professionals to keep your home safe
Needham, MA Radon Facts
Located in Norfolk County within the Boston Metro, Needham shows an average radon level of 6.0 pCi/L, which exceeds the EPA action threshold of 4.0 pCi/L. The town's glacial till soils and granite bedrock create favorable conditions for radon production, making testing particularly important for homes in zip code 02492.
Based on 1 user-submitted radon test for homes in Needham, MA. The EPA recommends taking action at or above 4.0 pCi/L.
Needham, MA Radon Mitigation
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Needham, MA Radon Levels
User-submitted radon test readings from homes in the Needham area.
| Radon Level | City | Home Age | Foundation |
|---|---|---|---|
| 6 pCi/L | Needham, MA | 0-20 Years | No Basement/All Slab |
Have a radon test result for Needham? Submit your reading to help other homeowners.
Radon Readings Near Needham, MA
Compare radon levels in Needham with the closest nearby cities that have user-submitted test data.
| City | Distance | Avg User Level | Readings |
|---|---|---|---|
| Needham Heights | 1.3 mi | 4.00 pCi/L | 1 |
| Wellesley Hills | 2.5 mi | 8.50 pCi/L | 2 |
| Wellesley | 2.7 mi | 4.00 pCi/L | 1 |
| Westwood | 4.9 mi | 5.00 pCi/L | 1 |
| West Newton | 4.9 mi | 4.00 pCi/L | 1 |
| Newton Center | 5.1 mi | 4.50 pCi/L | 2 |
| Newtonville | 5.4 mi | 3.00 pCi/L | 1 |
| Natick | 5.5 mi | 4.50 pCi/L | 2 |
Norfolk County Radon Profile
The soils and bedrock of Norfolk 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 17 cities in Norfolk County average 8.08 pCi/L across 25 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 Norfolk County to test, as levels can differ between neighboring homes.