Ohio County, West Virginia
AQI 42 · Good42
Median AQI
56
90th Percentile
97
Max AQI
135
Days with Data
Ranked #12 of 13 counties in West Virginia (by median AQI, lower is better)
Monthly Median AQI — 2025
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42
Median AQI
56
90th Percentile
97
Max AQI
135
Days with Data
Ranked #12 of 13 counties in West Virginia (by median AQI, lower is better)
Click a bar to view that month's details