Belleville, IL Radon Mitigation and Testing
Located in St. Clair County on the Illinois side of the St. Louis Metro, Belleville records an average radon level of 7.33 pCi/L, exceeding the EPA action threshold. The city's position over Mississippi River floodplain deposits and underlying Mississippian limestone creates moderate radon potential, though individual homes near bluffs can see significantly elevated readings. Residents across zip codes 62220, 62221, 62223, and 62226 should test their homes, particularly those with basements or crawl spaces.
Based on 3 user-submitted radon tests for homes in Belleville, IL. The EPA recommends taking action at or above 4.0 pCi/L.
Belleville, IL Radon Mitigation
Professional radon mitigation is the most effective way to permanently lower radon levels and protect your household.
Belleville, IL Radon Testing
Finding qualified radon testing professionals is the first step toward protecting your home.
Belleville, Illinois Radon Levels
User-submitted radon test readings from homes in the Belleville area.
| Radon Level | City | Home Age | Foundation | Submitted |
|---|---|---|---|---|
| 8 pCi/L | Belleville, IL | 51-99 Years | Full Basement | Oct 2021 |
| 6 pCi/L | Belleville, IL | 51-99 Years | Full Basement | Sep 2020 |
Have a radon test result for Belleville? Submit your reading to help other homeowners.
Belleville Radon Facts
Key details about the radon risk profile for Belleville and the 62220 zip code area.
Belleville and the 62220 zip code are located in St Clair County, which has an EPA assigned Radon Zone of 2. A radon zone of 2 predicts an average indoor radon screening level between 2 and 4 pCi/L. The EPA recommends testing every home regardless of zone classification.
Radon FAQ for Belleville, IL
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Most Active Radon Markets in Illinois
Cities with the most user-submitted radon test data in the state.
| City | Avg User Radon Level | Submissions |
|---|---|---|
| Buffalo Grove | 6.10 pCi/L | 10 |
| Crystal Lake | 7.25 pCi/L | 8 |
| Lake Zurich | 6.00 pCi/L | 7 |
| Grayslake | 5.00 pCi/L | 7 |
| New Lenox | 10.17 pCi/L | 6 |
| Park Ridge | 7.00 pCi/L | 6 |
| Arlington Heights | 6.17 pCi/L | 6 |
| Waterloo | 9.20 pCi/L | 5 |
| Palatine | 7.80 pCi/L | 5 |
| Round Lake | 7.80 pCi/L | 5 |
| Northbrook | 6.20 pCi/L | 5 |
| Mchenry | 11.00 pCi/L | 4 |
| Dekalb | 8.75 pCi/L | 4 |
| Columbia | 8.00 pCi/L | 4 |
| Lisle | 7.25 pCi/L | 4 |
| Normal | 7.25 pCi/L | 4 |
| Antioch | 7.00 pCi/L | 4 |
| Elk Grove Village | 7.00 pCi/L | 4 |
| Aurora | 6.75 pCi/L | 4 |
| Hoffman Estates | 6.75 pCi/L | 4 |