San Antonio vs El Paso Air Quality Comparison
Which city has cleaner air right now, from the latest EPA AirNow AQI
As of September 23, 2026, El Paso, TX has cleaner air than San Antonio, TX — AQI 38 (Good) vs 55 (Moderate), a gap of 17 AQI points in the latest EPA AirNow observations. Lower AQI means cleaner air. San Antonio's reading is driven by PM2.5 and El Paso's by O3.
San Antonio, TX
Moderate
El Paso, TX
Good
Summary
El Paso has 17 points better air quality
El Paso has an AQI of 38 compared to 55
Extra Protection for San Antonio Homes
Air quality in San Antonio is moderate (AQI 55), with fine particles (PM2.5) 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.
Compare top-rated True-HEPA purifiers:
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