Bakersfield vs Santa Rosa Air Quality Comparison
Which city has cleaner air right now, from the latest EPA AirNow AQI
As of September 24, 2026, Santa Rosa, CA has cleaner air than Bakersfield, CA — AQI 42 (Good) vs 67 (Moderate), a gap of 25 AQI points in the latest EPA AirNow observations. Lower AQI means cleaner air. Bakersfield's reading is driven by O3 and Santa Rosa's by PM2.5.
Bakersfield, CA
Moderate
Santa Rosa, CA
Good
Summary
Santa Rosa has 25 points better air quality
Santa Rosa has an AQI of 42 compared to 67
Reduce Indoor Ozone in Bakersfield
Today's main pollutant in Bakersfield is ground-level ozone (AQI 67). 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 | Bakersfield | Santa Rosa | Better |
|---|---|---|---|
| Today | AQI 101 | AQI 48 | Santa Rosa |