Oak Brook, IL Radon Levels
Check local Oak Brook radon levels and find certified testing and mitigation professionals to keep your home safe
Oak Brook, IL Radon Facts
Residents of Oak Brook in DuPage County face elevated radon concerns, with local testing revealing an average level of 10.0 pCi/L that significantly exceeds EPA action thresholds. This suburban Chicago Metro community sits atop glacial till deposits over limestone bedrock, conditions that strongly favor radon production and accumulation. Given these elevated readings and the area's predominantly single-family homes with full basements, homeowners in zip code 60523 should prioritize professional radon mitigation.
Based on 1 user-submitted radon test for homes in Oak Brook, IL. The EPA recommends taking action at or above 4.0 pCi/L.
Oak Brook, IL Radon Mitigation
Professional radon mitigation is the most effective way to permanently lower radon levels and protect your household.
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Oak Brook, IL Radon Levels
User-submitted radon test readings from homes in the Oak Brook area.
| Radon Level | City | Home Age | Foundation |
|---|---|---|---|
| 10 pCi/L | Oak Brook, IL | 51-99 Years | Full Basement |
Have a radon test result for Oak Brook? Submit your reading to help other homeowners.
Radon Readings Near Oak Brook, IL
Compare radon levels in Oak Brook with the closest nearby cities that have user-submitted test data.
| City | Distance | Avg User Level | Readings |
|---|---|---|---|
| Hinsdale | 2.6 mi | 5.00 pCi/L | 1 |
| Villa Park | 3.0 mi | 12.50 pCi/L | 2 |
| Lombard | 3.6 mi | 6.25 pCi/L | 4 |
| Western Springs | 4.0 mi | 7.00 pCi/L | 1 |
| Elmhurst | 4.0 mi | 4.00 pCi/L | 1 |
| Westchester | 4.2 mi | 4.00 pCi/L | 1 |
| Westmont | 4.5 mi | 4.00 pCi/L | 1 |
| Downers Grove | 4.6 mi | 14.00 pCi/L | 2 |
Dupage County Radon Profile
EPA mapping assigns Dupage County to Radon Zone 2, indicating moderate predicted indoor screening levels in the 2 to 4 pCi/L range based on regional geology. Homeowner-submitted tests from 25 cities in Dupage County average 6.98 pCi/L across 45 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 Dupage County home regardless of zone or a neighbor's results.