Stay updated with real-time air quality in Longview, 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)
54
Moderate
Longview, Texas
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
9.18 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
42.42 μg/m³
0
55
155
255
425
605+
56.10 ppb
0
55
71
86
201
201+
0.77 ppb
0
36
76
186
605
1005+
5.43 ppb
0
54
101
361
1250
2050+
0.34 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Longview, Texas
Longview, Texas
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AQI 52
Moderate
9.54μg/m³
PM2.5
44.19μg/m³
PM10
51.26ppb
O3
0.77ppb
SO2
5.77ppb
NO2
0.34ppm
CO
AQI 50
Good
9.18μg/m³
PM2.5
36.84μg/m³
PM10
54.32ppb
O3
0.95ppb
SO2
4.06ppb
NO2
0.34ppm
CO
AQI 49
Good
9.03μg/m³
PM2.5
48.49μg/m³
PM10
45.95ppb
O3
0.77ppb
SO2
1.63ppb
NO2
0.34ppm
CO
AQI 44
Good
8.30μg/m³
PM2.5
34.43μg/m³
PM10
45.04ppb
O3
0.78ppb
SO2
6.55ppb
NO2
0.35ppm
CO
AQI 49
Good
9.21μg/m³
PM2.5
41.20μg/m³
PM10
46.17ppb
O3
0.78ppb
SO2
6.33ppb
NO2
0.34ppm
CO
AQI 90
Moderate
21.82μg/m³
PM2.5
96.02μg/m³
PM10
66.76ppb
O3
0.97ppb
SO2
1.35ppb
NO2
0.33ppm
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 Longview, Texas is updated every hour for accuracy.
In the past 24 hours, the air quality in Longview, Texas was at its worst at 09:00:00 on 2026-08-18.
In the last 24 hours, the best air quality in Longview, Texas was observed at 11:00:00 on 2026-08-18.
As of now, the AQI in Longview, Texas is 54, indicating Moderate conditions.
Longview, Texas air has the highest levels of O3.
Poor air quality in Longview, Texas means it's advisable to stay indoors and wear a mask for your protection.
PM2.5 levels in Longview, Texas are currently 9.176 μg/m3.
The PM10 concentration in Longview, Texas is 42.425 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Longview, Texas is 0.342 ppm.
Currently, Longview, Texas has a sulfur dioxide (SO2) concentration of 0.772 ppb.
The current ozone (O3) level in Longview, Texas at the moment is 56.102 ppm.
Nitrogen dioxide (NO2) level in Longview, Texas at the moment is 5.432 ppb.
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