Plymouth, MI Radon Levels
Check local Plymouth radon levels and find certified testing and mitigation professionals to keep your home safe
Plymouth, MI Radon Facts
Plymouth in Wayne County shows an average radon level of 4.33 pCi/L based on local testing, slightly above the EPA action threshold. This Detroit Metro community in zip code 48170 features predominantly single-family homes with full basements built from the 1950s through 1990s. Residents should consider radon mitigation, especially in finished basement areas where family exposure may be higher.
Based on 3 user-submitted radon tests for homes in Plymouth, MI. The EPA recommends taking action at or above 4.0 pCi/L.
Plymouth, MI Radon Mitigation
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Plymouth, MI Radon Levels
User-submitted radon test readings from homes in the Plymouth area.
| Radon Level | City | Home Age | Foundation |
|---|---|---|---|
| 4 pCi/L | Plymouth, MI | 21-50 Years | Full Basement |
| 6 pCi/L | Plymouth, MI | 21-50 Years | Full Basement |
| 3 pCi/L | Plymouth, MI | 51-99 Years | — |
Have a radon test result for Plymouth? Submit your reading to help other homeowners.
Radon Readings Near Plymouth, MI
Compare radon levels in Plymouth with the closest nearby cities that have user-submitted test data.
| City | Distance | Avg User Level | Readings |
|---|---|---|---|
| Northville | 3.4 mi | 5.33 pCi/L | 3 |
| Canton | 4.0 mi | 3.00 pCi/L | 2 |
| Novi | 7.5 mi | 5.00 pCi/L | 7 |
| Farmington | 9.5 mi | 2.00 pCi/L | 1 |
| South Lyon | 11.0 mi | 15.00 pCi/L | 2 |
| Ypsilanti | 11.2 mi | 8.50 pCi/L | 4 |
| Wixom | 11.7 mi | 13.00 pCi/L | 2 |
| Walled Lake | 13.1 mi | 6.33 pCi/L | 3 |
Wayne County Radon Profile
The EPA maps Wayne County as Radon Zone 3, the lowest predicted classification, with modeled indoor screening levels under 2 pCi/L. Homeowner-submitted tests from 9 cities in Wayne County average 5.33 pCi/L across 15 tests — above the EPA's 4 pCi/L action level, reinforcing the need for testing across the county. As the second leading cause of lung cancer in the U.S., radon warrants testing in every Wayne County home regardless of zone or a neighbor's results.