Glen Carbon, IL Radon Levels
Check local Glen Carbon radon levels and find certified testing and mitigation professionals to keep your home safe
Glen Carbon, IL Radon Facts
Nestled in Madison County within the St. Louis Metro area, Glen Carbon shows an average radon level of 2.5 pCi/L based on recent testing data. This reading falls within the EPA's recommended range, reflecting the Mississippi River floodplain deposits and underlying limestone that characterize this 62034 zip code area, though individual homes can still vary significantly.
Based on 2 user-submitted radon tests for homes in Glen Carbon, IL. The EPA recommends taking action at or above 4.0 pCi/L.
Glen Carbon, IL Radon Mitigation
Professional radon mitigation is the most effective way to permanently lower radon levels and protect your household.
Need Radon Mitigation or Testing in Glen Carbon?
- 100% Free, No-Obligation Quotes
- Matches You with State-Licensed Madison County Pros
Glen Carbon, IL Radon Levels
User-submitted radon test readings from homes in the Glen Carbon area.
| Radon Level | City | Home Age | Foundation |
|---|---|---|---|
| 1 pCi/L | Glen Carbon, IL | 0-20 Years | Partial Basement |
| 4 pCi/L | Glen Carbon, IL | 0-20 Years | Full Basement |
Have a radon test result for Glen Carbon? Submit your reading to help other homeowners.
Radon Readings Near Glen Carbon, IL
Compare radon levels in Glen Carbon with the closest nearby cities that have user-submitted test data.
| City | Distance | Avg User Level | Readings |
|---|---|---|---|
| Maryville | 3.3 mi | 11.00 pCi/L | 1 |
| Collinsville | 5.4 mi | 5.00 pCi/L | 1 |
| Troy | 5.9 mi | 4.00 pCi/L | 1 |
| Granite City | 7.9 mi | 8.00 pCi/L | 1 |
| Caseyville | 9.0 mi | 7.50 pCi/L | 2 |
| East Alton | 10.2 mi | 4.00 pCi/L | 1 |
| Fairview Heights | 11.6 mi | 9.00 pCi/L | 1 |
| O Fallon | 13.7 mi | 6.00 pCi/L | 1 |
Madison County Radon Profile
The soils and bedrock of Madison 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 8 cities in Madison County average 5.44 pCi/L across 9 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 Madison County to test, as levels can differ between neighboring homes.