Harrison County, Texas
AQI 45 · Good45
Median AQI
59
90th Percentile
100
Max AQI
243
Days with Data
Ranked #24 of 45 counties in Texas (by median AQI, lower is better)
Monthly Median AQI — 2025
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45
Median AQI
59
90th Percentile
100
Max AQI
243
Days with Data
Ranked #24 of 45 counties in Texas (by median AQI, lower is better)
Click a bar to view that month's details