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)
100
Moderate
San Antonio, Texas
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
11.37 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
50.06 μg/m³
0
55
155
255
425
605+
70.14 ppb
0
55
71
86
201
201+
0.81 ppb
0
36
76
186
605
1005+
6.95 ppb
0
54
101
361
1250
2050+
0.41 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 97
Moderate
12.00μg/m³
PM2.5
54.36μg/m³
PM10
68.73ppb
O3
0.88ppb
SO2
6.86ppb
NO2
0.40ppm
CO
AQI 80
Moderate
12.95μg/m³
PM2.5
57.55μg/m³
PM10
64.25ppb
O3
0.82ppb
SO2
6.87ppb
NO2
0.40ppm
CO
AQI 80
Moderate
12.90μg/m³
PM2.5
57.85μg/m³
PM10
64.19ppb
O3
0.81ppb
SO2
6.88ppb
NO2
0.40ppm
CO
AQI 84
Moderate
12.73μg/m³
PM2.5
56.07μg/m³
PM10
64.55ppb
O3
0.82ppb
SO2
6.88ppb
NO2
0.40ppm
CO
AQI 84
Moderate
12.32μg/m³
PM2.5
52.94μg/m³
PM10
65.26ppb
O3
0.82ppb
SO2
6.88ppb
NO2
0.40ppm
CO
AQI 71
Moderate
12.99μg/m³
PM2.5
60.80μg/m³
PM10
60.75ppb
O3
0.81ppb
SO2
6.89ppb
NO2
0.40ppm
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 09:00:00 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 100, 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 11.374 μg/m3.
The PM10 concentration in San Antonio, Texas is 50.06 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in San Antonio, Texas is 0.414 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 70.143 ppm.
Nitrogen dioxide (NO2) level in San Antonio, Texas at the moment is 6.954 ppb.
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