Stay updated with real-time air quality in San Antonio, Texas featuring accurate data on AQI, PM2.5, PM10, O3, NO2, SO2, and CO levels. Use our interactive map and detailed forecasts to monitor pollution trends, manage health risks, and plan your daily activities with confidence.
Live AQI (Air Quality Index)
97
Moderate
San Antonio, Texas
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
9.36 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
40.21 μg/m³
0
55
155
255
425
605+
68.87 ppb
0
55
71
86
201
201+
0.81 ppb
0
36
76
186
605
1005+
7.81 ppb
0
54
101
361
1250
2050+
0.44 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Moderate
San Antonio, Texas
San Antonio, Texas
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AQI 119
Unhealthy for sensitive groups
11.83μg/m³
PM2.5
53.41μg/m³
PM10
75.99ppb
O3
0.81ppb
SO2
6.96ppb
NO2
0.41ppm
CO
AQI 93
Moderate
10.49μg/m³
PM2.5
45.33μg/m³
PM10
68.48ppb
O3
0.81ppb
SO2
6.97ppb
NO2
0.41ppm
CO
AQI 97
Moderate
10.60μg/m³
PM2.5
46.05μg/m³
PM10
68.89ppb
O3
0.81ppb
SO2
6.98ppb
NO2
0.41ppm
CO
AQI 97
Moderate
10.50μg/m³
PM2.5
44.86μg/m³
PM10
68.93ppb
O3
0.81ppb
SO2
6.98ppb
NO2
0.41ppm
CO
AQI 100
Moderate
10.46μg/m³
PM2.5
43.76μg/m³
PM10
70.05ppb
O3
0.81ppb
SO2
6.98ppb
NO2
0.41ppm
CO
AQI 87
Moderate
11.10μg/m³
PM2.5
47.68μg/m³
PM10
66.10ppb
O3
0.81ppb
SO2
6.99ppb
NO2
0.41ppm
CO
Air quality and pollutant data for Texas, USA are sourced from ground-based monitors and satellites, adhering to US EPA standards. Machine learning and advanced algorithms enhance the data by incorporating local variables like traffic and population density, ensuring high accuracy and dependability.
Source: Ambee Data Sources
The air quality information for San Antonio, Texas is updated every hour for accuracy.
In the past 24 hours, the air quality in San Antonio, Texas was at its worst at 10:00:00 on 2026-10-22.
In the last 24 hours, the best air quality in San Antonio, Texas was observed at 04:00:00 on 2026-10-22.
As of now, the AQI in San Antonio, Texas is 97, indicating Moderate conditions.
San Antonio, Texas air has the highest levels of O3.
Poor air quality in San Antonio, Texas means it's advisable to stay indoors and wear a mask for your protection.
PM2.5 levels in San Antonio, Texas are currently 9.364 μg/m3.
The PM10 concentration in San Antonio, Texas is 40.211 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in San Antonio, Texas is 0.436 ppm.
Currently, San Antonio, Texas has a sulfur dioxide (SO2) concentration of 0.808 ppb.
The current ozone (O3) level in San Antonio, Texas at the moment is 68.872 ppm.
Nitrogen dioxide (NO2) level in San Antonio, Texas at the moment is 7.809 ppb.
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