Bloomington, IL Radon Levels
Check local Bloomington radon levels and find certified testing and mitigation professionals to keep your home safe
Bloomington, IL Radon Facts
Home to Illinois State University in McLean County, Bloomington shows elevated radon readings averaging 11.33 pCi/L across multiple zip codes, well above EPA action levels. The city sits atop deep glacial moraine deposits over limestone bedrock typical of central Illinois, with mixed housing stock featuring the full basements where radon readily accumulates.
Based on 3 user-submitted radon tests for homes in Bloomington, IL. The EPA recommends taking action at or above 4.0 pCi/L.
Bloomington, IL Radon Mitigation
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Bloomington, IL Radon Levels
User-submitted radon test readings from homes in the Bloomington area.
| Radon Level | City | Home Age | Foundation |
|---|---|---|---|
| 4 pCi/L | Bloomington, IL | 51-99 Years | No Basement/All Slab |
| 14 pCi/L | Bloomington, IL | 0-20 Years | Full Basement |
| 16 pCi/L | Bloomington, IL | 0-20 Years | Full Basement |
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Radon Readings Near Bloomington, IL
Compare radon levels in Bloomington with the closest nearby cities that have user-submitted test data.
McLean County Radon Profile
McLean 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 3 cities in McLean County average 8.50 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 McLean County to test, as levels can differ between neighboring homes.