Plymouth, MA Radon Levels
Check local Plymouth radon levels and find certified testing and mitigation professionals to keep your home safe
Plymouth, MA Radon Facts
Historic Plymouth in Plymouth County along Massachusetts' South Shore shows an average radon level of 7.0 pCi/L, which exceeds the EPA action threshold. This coastal community in zip code 02360, part of the greater Boston Metro, sits on glacial deposits that can trap radon gas. Homes with basements or crawl spaces should prioritize professional radon mitigation.
Based on 1 user-submitted radon test for homes in Plymouth, MA. The EPA recommends taking action at or above 4.0 pCi/L.
Plymouth, MA Radon Mitigation
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Plymouth, MA Radon Levels
User-submitted radon test readings from homes in the Plymouth area.
| Radon Level | City | Home Age | Foundation |
|---|---|---|---|
| 7 pCi/L | Plymouth, MA | 0-20 Years | Full Basement |
Have a radon test result for Plymouth? Submit your reading to help other homeowners.
Radon Readings Near Plymouth, MA
Compare radon levels in Plymouth with the closest nearby cities that have user-submitted test data.
| City | Distance | Avg User Level | Readings |
|---|---|---|---|
| Kingston | 7.7 mi | 4.00 pCi/L | 1 |
| Pembroke | 13.4 mi | 5.00 pCi/L | 1 |
| Buzzards Bay | 15.0 mi | 9.50 pCi/L | 2 |
| Hanson | 15.5 mi | 6.00 pCi/L | 1 |
| Sandwich | 16.2 mi | 10.00 pCi/L | 1 |
| North Falmouth | 18.6 mi | 6.00 pCi/L | 1 |
| Norwell | 19.5 mi | 20.00 pCi/L | 1 |
| Acushnet | 20.0 mi | 11.00 pCi/L | 1 |
Plymouth County Radon Profile
The soils and bedrock of Plymouth 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 7 cities in Plymouth County average 7.50 pCi/L across 8 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 Plymouth County to test, as levels can differ between neighboring homes.