Worcester vs Springfield Air Quality Comparison
Which city has cleaner air right now, from the latest EPA AirNow AQI
As of September 23, 2026, Worcester, MA has cleaner air than Springfield, MA — AQI 19 (Good) vs 23 (Good), a gap of 4 AQI points in the latest EPA AirNow observations. Lower AQI means cleaner air. Worcester's reading is driven by O3 and Springfield's by O3.
Worcester, MA
Good
Springfield, MA
Good
Summary
Worcester has 4 points better air quality
Worcester has an AQI of 19 compared to 23
Reduce Indoor Ozone in Springfield
Today's main pollutant in Springfield is ground-level ozone (AQI 23). 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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