Phoenix vs Mesa Air Quality Comparison
Which city has cleaner air right now, from the latest EPA AirNow AQI
As of September 23, 2026, Mesa, AZ has cleaner air than Phoenix, AZ — AQI 35 (Good) vs 51 (Moderate), a gap of 16 AQI points in the latest EPA AirNow observations. Lower AQI means cleaner air. Phoenix's reading is driven by PM10 and Mesa's by O3.
Phoenix, AZ
Moderate
Mesa, AZ
Good
Summary
Mesa has 16 points better air quality
Mesa has an AQI of 35 compared to 51
Extra Protection for Phoenix Homes
Air quality in Phoenix is moderate (AQI 51), with particle pollution the main concern. A True-HEPA purifier gives sensitive groups — kids, seniors and anyone with asthma or allergies — cleaner air indoors on days like today.
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