Baltimore (City) County, Maryland
AQI 44 · Good44
Median AQI
64
90th Percentile
136
Max AQI
303
Days with Data
Ranked #16 of 16 counties in Maryland (by median AQI, lower is better)
Monthly Median AQI — 2025
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44
Median AQI
64
90th Percentile
136
Max AQI
303
Days with Data
Ranked #16 of 16 counties in Maryland (by median AQI, lower is better)
Click a bar to view that month's details