| # | County | Median AQI |
|---|---|---|
| 1 | Loudoun County | 43 |
| 2 | Fairfax County | 42 |
| 3 | Rockingham County | 42 |
| 4 | Chesterfield County | 41 |
| 5 | Frederick County | 41 |
| 6 | Henrico County | 41 |
| 7 | Madison County | 41 |
| 8 | Wythe County | 41 |
| 9 | Albemarle County | 40 |
| 10 | Hampton city | 39 |
| 11 | Hanover County | 39 |
| 12 | Roanoke County | 39 |
| 13 | Giles County | 38 |
| 14 | Caroline County | 37 |
| 15 | Rockbridge County | 37 |
| 16 | Suffolk city | 37 |
| 17 | Arlington County | 36 |
| 18 | Fauquier County | 36 |
| 19 | Richmond County | 36 |
| 20 | Virginia Beach city | 36 |
| 21 | Prince William County | 35 |
| 22 | Stafford County | 35 |
| 23 | Bristol city | 33 |
| 24 | Prince Edward County | 33 |
| 25 | Norfolk city | 32 |
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 Virginia”, https://gismap.land/rankings/virginia/worst-air-quality-counties. Figures from EPA Air Quality Index annual summary (2024).
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