Aurora vs Peoria Air Quality Comparison
Which city has cleaner air right now, from the latest EPA AirNow AQI
As of September 23, 2026, Aurora, IL has cleaner air than Peoria, IL — AQI 26 (Good) vs 30 (Good), a gap of 4 AQI points in the latest EPA AirNow observations. Lower AQI means cleaner air. Aurora's reading is driven by O3 and Peoria's by O3.
Aurora, IL
Good
Peoria, IL
Good
Summary
Aurora has 4 points better air quality
Aurora has an AQI of 26 compared to 30
Reduce Indoor Ozone in Peoria
Today's main pollutant in Peoria is ground-level ozone (AQI 30). 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):
Prices are approximate and subject to change. As an Amazon Associate, we earn from qualifying purchases at no extra cost to you.