Stockton vs Irvine Air Quality Comparison
Which city has cleaner air right now, from the latest EPA AirNow AQI
As of September 23, 2026, Stockton, CA has cleaner air than Irvine, CA — AQI 55 (Moderate) vs 56 (Moderate), a gap of 1 AQI points in the latest EPA AirNow observations. Lower AQI means cleaner air. Stockton's reading is driven by PM10 and Irvine's by PM2.5.
Stockton, CA
Moderate
Irvine, CA
Moderate
Summary
Stockton has 1 points better air quality
Stockton has an AQI of 55 compared to 56
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5-Day Forecast Comparison
| Day | Stockton | Irvine | Better |
|---|---|---|---|
| Today | AQI 50 | AQI 51 | Stockton |