Stay updated with real-time air quality in Houston, 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)
44
Good
Houston, Texas
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
8.41 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
34.28 μg/m³
0
55
155
255
425
605+
23.45 ppb
0
55
71
86
201
201+
0.70 ppb
0
36
76
186
605
1005+
2.43 ppb
0
54
101
361
1250
2050+
0.30 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Houston, Texas
Houston, Texas
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AQI 38
Good
7.35μg/m³
PM2.5
29.00μg/m³
PM10
21.64ppb
O3
0.59ppb
SO2
3.51ppb
NO2
0.28ppm
CO
AQI 27
Good
5.50μg/m³
PM2.5
23.65μg/m³
PM10
22.72ppb
O3
0.59ppb
SO2
3.49ppb
NO2
0.28ppm
CO
AQI 43
Good
6.11μg/m³
PM2.5
45.65μg/m³
PM10
17.57ppb
O3
0.59ppb
SO2
3.58ppb
NO2
0.28ppm
CO
AQI 38
Good
6.75μg/m³
PM2.5
29.36μg/m³
PM10
21.66ppb
O3
0.59ppb
SO2
3.52ppb
NO2
0.28ppm
CO
AQI 28
Good
5.29μg/m³
PM2.5
29.84μg/m³
PM10
17.31ppb
O3
0.59ppb
SO2
3.61ppb
NO2
0.28ppm
CO
AQI 29
Good
5.07μg/m³
PM2.5
31.38μg/m³
PM10
18.34ppb
O3
0.59ppb
SO2
3.60ppb
NO2
0.28ppm
CO
The air quality data for Texas, USA is gathered from reliable sources such as satellites and monitoring stations, adhering to US EPA guidelines. With the help of advanced algorithms and machine learning, factors like traffic and population density are analyzed to deliver accurate and dependable results.
Source: Ambee Data Sources
Air quality updates for Houston, Texas are available every hour.
Houston, Texas experienced its worst air quality at 11:00:00, 2026-08-09.
The best air quality in Houston, Texas was observed at 10:00:00 on 2026-08-10.
The air quality in Houston, Texas right now is Good, with an AQI of 49.
In Houston, Texas, PM2.5 is the most frequently found pollutant.
When air quality in Houston, Texas is compromised, staying indoors and wearing a mask can reduce health risks.
Houston, Texas currently has a PM2.5 concentration of 8.867 μg/m3.
Houston, Texas currently has a PM10 concentration of 35.501 μg/m3.
The current carbon monoxide (CO) level in Houston, Texas is 0.28 ppm.
The current sulfur dioxide (SO2) concentration in Houston, Texas is 0.629 ppb.
Houston, Texas currently has an ozone (O3) concentration of 19.796 ppm.
The current level of nitrogen dioxide (NO2) in Houston, Texas is 3.483 ppb.
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