City in Texas, United States
Air quality in San Antonio
Fairly clean
The annual average PM2.5 in San Antonio was 9 µg/m³ in 2022, about 1.8 times the WHO guideline of 5 µg/m³. Cedar fever pollen in winter and ozone in summer can bother sensitive people.
Key facts
- PM2.5: 9 µg/m³ yearly average (2022). Measured at San Antonio New Braunfels TX, 14 km away.
- Nitrogen dioxide: 10.2 µg/m³ (2022), mostly from traffic.
- Recent average: 8.7 µg/m³ over the last five years of measurements.
PM2.5 by year
| Year | Annual average |
|---|---|
| 2022 | |
| 2021 | |
| 2021 | |
| 2020 | |
| 2020 | |
| 2019 | |
| 2019 | |
| 2018 | |
| 2018 | |
| 2017 | |
| 2017 | |
| 2016 | |
| 2016 |
Air quality across United States
| Place | PM2.5 | Level |
|---|---|---|
| Maui | 2 µg/m³ | Meets the WHO guideline |
| Honolulu | 3 µg/m³ | Meets the WHO guideline |
| Kauai | 3 µg/m³ | Meets the WHO guideline |
| Big Island | 3 µg/m³ | Meets the WHO guideline |
| Lake Tahoe | 5.2 µg/m³ | Fairly clean |
| Portland | 5.8 µg/m³ | Fairly clean |
| Denver | 6 µg/m³ | Fairly clean |
| Seattle | 6.1 µg/m³ | Fairly clean |
| Miami | 6.2 µg/m³ | Fairly clean |
| Miami Beach | 6.2 µg/m³ | Fairly clean |
| Washington, D.C. | 6.3 µg/m³ | Fairly clean |
| Boston | 6.4 µg/m³ | Fairly clean |
| Orlando | 6.7 µg/m³ | Fairly clean |
| New York City | 7.1 µg/m³ | Fairly clean |
| Philadelphia | 7.2 µg/m³ | Fairly clean |
| Charleston | 7.3 µg/m³ | Fairly clean |
| Nashville | 7.7 µg/m³ | Fairly clean |
| Phoenix | 7.9 µg/m³ | Fairly clean |
| Scottsdale | 8 µg/m³ | Fairly clean |
| Napa Valley | 8 µg/m³ | Fairly clean |
| New Orleans | 8.2 µg/m³ | Fairly clean |
| San Diego | 8.2 µg/m³ | Fairly clean |
| Atlanta | 8.5 µg/m³ | Fairly clean |
| Dallas | 8.5 µg/m³ | Fairly clean |
| Chicago | 8.7 µg/m³ | Fairly clean |
| Austin | 9 µg/m³ | Fairly clean |
| San Antonio | 9 µg/m³ | Fairly clean |
| Las Vegas | 9.7 µg/m³ | Fairly clean |
| Los Angeles | 10.5 µg/m³ | Moderate |
| Houston | 11.1 µg/m³ | Moderate |
Quick answers
Is the air in San Antonio bad?
Fairly clean: 9 µg/m³ of PM2.5 on average, 1.8× the WHO guideline.
When is the air worst in San Antonio?
Cedar fever pollen in winter and ozone in summer can bother sensitive people.
How does San Antonio compare with the rest of United States?
People in United States breathe 7 µg/m³ of PM2.5 on average (2023, World Bank/WHO), against 9 µg/m³ measured here.
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Sources
- WHO Ambient Air Quality Database
- WHO air quality guidelines (2021)
- Live air quality map (WAQI)
- VIA Metropolitan Transit
- San Antonio International Airport
- Visit San Antonio
Annual averages are measured values reported to the WHO; check a live map for today's air. Compiled and reviewed by SoloSquare. How we compile and score this. Spotted something out of date? Tell us.