Stay updated with real-time air quality in Horizon City, 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)
33
Good
Horizon City, Texas
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
5.51 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
28.07 μg/m³
0
55
155
255
425
605+
28.62 ppb
0
55
71
86
201
201+
0.60 ppb
0
36
76
186
605
1005+
2.66 ppb
0
54
101
361
1250
2050+
0.13 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Horizon City, Texas
Horizon City, Texas
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AQI 30
Good
4.09μg/m³
PM2.5
22.89μg/m³
PM10
32.42ppb
O3
0.61ppb
SO2
4.08ppb
NO2
0.15ppm
CO
AQI 28
Good
5.35μg/m³
PM2.5
26.81μg/m³
PM10
29.98ppb
O3
0.61ppb
SO2
4.06ppb
NO2
0.15ppm
CO
AQI 44
Good
8.36μg/m³
PM2.5
37.40μg/m³
PM10
24.90ppb
O3
0.61ppb
SO2
4.04ppb
NO2
0.15ppm
CO
AQI 52
Moderate
10.31μg/m³
PM2.5
48.25μg/m³
PM10
23.29ppb
O3
0.61ppb
SO2
3.95ppb
NO2
0.15ppm
CO
AQI 40
Good
5.57μg/m³
PM2.5
43.23μg/m³
PM10
31.73ppb
O3
0.61ppb
SO2
3.17ppb
NO2
0.15ppm
CO
AQI 28
Good
4.42μg/m³
PM2.5
20.23μg/m³
PM10
30.41ppb
O3
0.61ppb
SO2
4.07ppb
NO2
0.15ppm
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 Horizon City, Texas is updated every hour for accuracy.
In the past 24 hours, the air quality in Horizon City, Texas was at its worst at 03:00:00 on 2026-10-22.
In the last 24 hours, the best air quality in Horizon City, Texas was observed at 05:00:00 on 2026-10-22.
As of now, the AQI in Horizon City, Texas is 33, indicating Good conditions.
Horizon City, Texas air has the highest levels of PM2.5.
Poor air quality in Horizon City, Texas means it's advisable to stay indoors and wear a mask for your protection.
PM2.5 levels in Horizon City, Texas are currently 5.511 μg/m3.
The PM10 concentration in Horizon City, Texas is 28.067 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Horizon City, Texas is 0.129 ppm.
Currently, Horizon City, Texas has a sulfur dioxide (SO2) concentration of 0.604 ppb.
The current ozone (O3) level in Horizon City, Texas at the moment is 28.62 ppm.
Nitrogen dioxide (NO2) level in Horizon City, Texas at the moment is 2.662 ppb.
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