Prince William County, Virginia
AQI 38 · Good38
Median AQI
48
90th Percentile
87
Max AQI
272
Days with Data
Ranked #15 of 30 counties in Virginia (by median AQI, lower is better)
Monthly Median AQI — 2025
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38
Median AQI
48
90th Percentile
87
Max AQI
272
Days with Data
Ranked #15 of 30 counties in Virginia (by median AQI, lower is better)
Click a bar to view that month's details