| # | County | Median AQI |
|---|---|---|
| 1 | Jefferson County | 57 |
| 2 | Etowah County | 47 |
| 3 | Mobile County | 45 |
| 4 | Madison County | 44 |
| 5 | Morgan County | 44 |
| 6 | DeKalb County | 43 |
| 7 | Montgomery County | 42 |
| 8 | Russell County | 42 |
| 9 | Baldwin County | 40 |
| 10 | Shelby County | 40 |
| 11 | Elmore County | 37 |
| 12 | Tuscaloosa County | 37 |
| 13 | Sumter County | 36 |
| 14 | Lawrence County | 33 |
| 15 | Clay County | 29 |
Source: EPA Air Quality Index annual summary (2024). All counties with data are ranked. Estimates carry margins of error.
Citing this page: GIS Map, “Counties with the Worst Air Quality in Alabama”, https://gismap.land/rankings/alabama/worst-air-quality-counties. Figures from EPA Air Quality Index annual summary (2024).
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