Clark County, Ohio
AQI 46 · Good46
Median AQI
67
90th Percentile
126
Max AQI
271
Days with Data
Ranked #28 of 37 counties in Ohio (by median AQI, lower is better)
Monthly Median AQI — 2025
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46
Median AQI
67
90th Percentile
126
Max AQI
271
Days with Data
Ranked #28 of 37 counties in Ohio (by median AQI, lower is better)
Click a bar to view that month's details