Santa Rosa vs Irvine Air Quality Comparison
Which city has cleaner air right now, from the latest EPA AirNow AQI
As of November 8, 2026, Santa Rosa, CA has cleaner air than Irvine, CA — AQI 6 (Good) vs 34 (Good), a gap of 28 AQI points in the latest EPA AirNow observations. Lower AQI means cleaner air. Santa Rosa's reading is driven by O3 and Irvine's by O3.
Santa Rosa, CA
Good
Irvine, CA
Good
Summary
Santa Rosa has 28 points better air quality
Santa Rosa has an AQI of 6 compared to 34
Reduce Indoor Ozone in Irvine
Today's main pollutant in Irvine is ground-level ozone (AQI 34). Important: standard HEPA filters do NOT remove ozone — only a purifier with a substantial activated-carbon bed adsorbs it. The biggest wins are cutting indoor sources (gas appliances, certain "ionizer" purifiers) and ventilating when outdoor ozone is low (early morning). A high-carbon unit helps with the gases and VOCs that linger indoors.
Compare activated-carbon purifiers (for gases & ozone):
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5-Day Forecast Comparison
| Day | Santa Rosa | Irvine | Better |
|---|---|---|---|
| Today | AQI 44 | AQI 53 | Santa Rosa |