Stay updated with real-time air quality in Killeen, 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)
56
Moderate
Killeen, Texas
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
12.08 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
55.16 μg/m³
0
55
155
255
425
605+
16.80 ppb
0
55
71
86
201
201+
0.51 ppb
0
36
76
186
605
1005+
4.72 ppb
0
54
101
361
1250
2050+
0.34 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Killeen, Texas
Killeen, Texas
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AQI 56
Moderate
12.15μg/m³
PM2.5
55.42μg/m³
PM10
16.47ppb
O3
0.51ppb
SO2
4.71ppb
NO2
0.34ppm
CO
AQI 56
Moderate
12.06μg/m³
PM2.5
55.07μg/m³
PM10
16.91ppb
O3
0.51ppb
SO2
4.72ppb
NO2
0.34ppm
CO
AQI 56
Moderate
12.38μg/m³
PM2.5
49.77μg/m³
PM10
14.65ppb
O3
0.51ppb
SO2
4.72ppb
NO2
0.34ppm
CO
AQI 54
Moderate
11.33μg/m³
PM2.5
50.27μg/m³
PM10
14.25ppb
O3
0.51ppb
SO2
4.71ppb
NO2
0.34ppm
CO
AQI 58
Moderate
12.55μg/m³
PM2.5
46.69μg/m³
PM10
14.98ppb
O3
0.52ppb
SO2
4.72ppb
NO2
0.34ppm
CO
AQI 54
Moderate
11.32μg/m³
PM2.5
50.20μg/m³
PM10
14.15ppb
O3
0.51ppb
SO2
4.71ppb
NO2
0.34ppm
CO
Air quality data and pollutant measurements for Texas, USA adhere to strict US EPA standards. The data is collected from multiple reliable sources, including satellites and ground-based monitoring stations. This data is further analyzed and enhanced using machine learning and advanced algorithms that factor in elements such as traffic and population density, ensuring accurate and reliable results.
Source: Ambee Data Sources
The air quality for Killeen, Texas is updated every hour.
The worst air quality in Killeen, Texas in the last 24 hours was observed at 12:00:00 on 2026-06-08.
In the last 24 hrs, the best air quality in Killeen, Texas was observed at 03:00:00 on 2026-06-07.
The current air quality in Killeen, Texas is 56, categorized as Moderate based on real-time data.
The most common pollutant in Killeen, Texas is PM2.5.
If the air quality in Killeen, Texas is poor, consider staying indoors and wearing a mask to protect yourself.
The current PM2.5 concentration at Killeen, Texas is 12.082 μg/m3.
The current PM10 concentration at Killeen, Texas is 55.165 μg/m3.
The current carbon monoxide (CO) concentration at Killeen, Texas is 0.341 ppm.
The current sulfur dioxide (SO2) concentration at Killeen, Texas is 0.512 ppb.
The current ozone (O3) concentration at Killeen, Texas is 16.805 ppm.
The current nitrogen dioxide (NO2) concentration at Killeen, Texas is 4.716 ppb.
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