St. Tammany County, Louisiana
AQI 38 · Good38
Median AQI
58
90th Percentile
105
Max AQI
271
Days with Data
Ranked #8 of 22 counties in Louisiana (by median AQI, lower is better)
Monthly Median AQI — 2025
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38
Median AQI
58
90th Percentile
105
Max AQI
271
Days with Data
Ranked #8 of 22 counties in Louisiana (by median AQI, lower is better)
Click a bar to view that month's details