Annapolis, MD Radon Mitigation and Testing
Maryland's historic capital in Anne Arundel County shows current radon testing with an average level of 4.25 pCi/L, which slightly exceeds the EPA action threshold and indicates potential need for mitigation in affected homes. The city's diverse housing spans from colonial-era structures to modern waterfront developments, built over the Chesapeake Bay region's complex geology of clay and sand deposits. Properties across Annapolis's multiple zip codes should prioritize regular radon testing, particularly those with basements or crawl spaces near the water.
Based on 4 user-submitted radon tests for homes in Annapolis, MD. The EPA recommends taking action at or above 4.0 pCi/L.
Annapolis, MD Radon Mitigation
Professional radon mitigation is the most effective way to permanently lower radon levels and protect your household.
Annapolis, MD Radon Testing
Finding qualified radon testing professionals is the first step toward protecting your home.
Annapolis, Maryland Radon Levels
User-submitted radon test readings from homes in the Annapolis area.
| Radon Level | City | Home Age | Foundation | Submitted |
|---|---|---|---|---|
| 5 pCi/L | Annapolis, MD | — | — | Oct 2021 |
| 4 pCi/L | Annapolis, MD | 21-50 Years | Partial Basement | Nov 2019 |
| 4 pCi/L | Annapolis, MD | 0-20 Years | Full Basement | Aug 2019 |
Have a radon test result for Annapolis? Submit your reading to help other homeowners.
Annapolis Radon Facts
Key details about the radon risk profile for Annapolis and the 21401 zip code area.
Annapolis and the 21401 zip code are located in Anne Arundel 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 Annapolis, MD
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Most Active Radon Markets in Maryland
Cities with the most user-submitted radon test data in the state.
| City | Avg User Radon Level | Submissions |
|---|---|---|
| Frederick | 8.29 pCi/L | 7 |
| Potomac | 9.00 pCi/L | 6 |
| Hagerstown | 8.67 pCi/L | 6 |
| Westminster | 14.50 pCi/L | 4 |
| Baltimore | 7.00 pCi/L | 4 |
| Annapolis | 4.25 pCi/L | 4 |
| Upper Marlboro | 15.00 pCi/L | 3 |
| Edgewater | 12.67 pCi/L | 3 |
| Bowie | 9.00 pCi/L | 3 |
| Clarksburg | 8.00 pCi/L | 3 |
| Gambrills | 6.00 pCi/L | 3 |
| Elkton | 5.33 pCi/L | 3 |
| Silver Spring | 4.33 pCi/L | 3 |
| Chesapeake Beach | 14.00 pCi/L | 2 |
| Cumberland | 9.00 pCi/L | 2 |
| Frostburg | 9.00 pCi/L | 2 |
| Owings | 5.50 pCi/L | 2 |
| Huntingtown | 4.50 pCi/L | 2 |
| Mc Henry | 20.00 pCi/L | 1 |
| Mount Airy | 20.00 pCi/L | 1 |