Stay updated with real-time air quality in Seguin, 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)
75
Moderate
Seguin, Texas
Last updated: ... (Local time)
Good
Fine
Moderate
Poor
Very poor
Hazardous
21.86 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
99.91 μg/m³
0
55
155
255
425
605+
17.66 ppb
0
55
71
86
201
201+
0.66 ppb
0
36
76
186
605
1005+
2.82 ppb
0
54
101
361
1250
2050+
0.24 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Seguin, Texas
Seguin, Texas
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AQI 77
Moderate
23.19μg/m³
PM2.5
103.12μg/m³
PM10
17.75ppb
O3
0.65ppb
SO2
3.34ppb
NO2
0.32ppm
CO
AQI 77
Moderate
22.90μg/m³
PM2.5
103.12μg/m³
PM10
13.86ppb
O3
0.65ppb
SO2
3.33ppb
NO2
0.29ppm
CO
AQI 77
Moderate
22.83μg/m³
PM2.5
102.85μg/m³
PM10
13.37ppb
O3
0.65ppb
SO2
3.33ppb
NO2
0.28ppm
CO
AQI 77
Moderate
22.86μg/m³
PM2.5
103.12μg/m³
PM10
13.30ppb
O3
0.65ppb
SO2
3.33ppb
NO2
0.28ppm
CO
AQI 77
Moderate
22.68μg/m³
PM2.5
101.31μg/m³
PM10
13.39ppb
O3
0.65ppb
SO2
3.32ppb
NO2
0.28ppm
CO
AQI 75
Moderate
22.48μg/m³
PM2.5
100.05μg/m³
PM10
13.48ppb
O3
0.65ppb
SO2
3.32ppb
NO2
0.28ppm
CO
Air quality measurements for Texas, USA meet strict US EPA standards. These measurements are collected from reliable sources, including satellites and ground-based monitoring systems. Advanced algorithms and machine learning techniques are applied to the data, factoring in variables such as traffic and population density, to ensure precision and reliability.
Source: Ambee Data Sources
Air quality data for Seguin, Texas is updated on an hourly basis.
The worst air quality in Seguin, Texas was recorded at 08:00:00 on 2025-06-07.
The best air quality in Seguin, Texas was recorded at 12:00:00 on 2025-06-07.
The real-time air quality index in Seguin, Texas is 75, currently categorized as Moderate.
The most common pollutant in Seguin, Texas is PM2.5.
If the air quality in Seguin, Texas is poor, limit outdoor activities and use a mask to safeguard your health.
The measured PM2.5 levels in Seguin, Texas at present are 21.864 μg/m3.
The current PM10 levels in Seguin, Texas are 99.906 μg/m3.
The current carbon monoxide (CO) level in Seguin, Texas is 0.237 ppm.
The current sulfur dioxide (SO2) levels in Seguin, Texas are 0.664 ppb.
The current ozone (O3) levels at Seguin, Texas is 17.659 ppm.
The current nitrogen dioxide (NO2) levels at Seguin, Texas is 2.817 ppb.
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