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)
58
Moderate
Longview, Texas
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
12.95 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
47.55 μg/m³
0
55
155
255
425
605+
32.45 ppb
0
55
71
86
201
201+
0.60 ppb
0
36
76
186
605
1005+
3.13 ppb
0
54
101
361
1250
2050+
0.34 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Moderate
Longview, Texas
Longview, Texas
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AQI 43
Good
4.03μg/m³
PM2.5
20.38μg/m³
PM10
46.24ppb
O3
0.76ppb
SO2
8.05ppb
NO2
0.34ppm
CO
AQI 42
Good
2.51μg/m³
PM2.5
22.27μg/m³
PM10
45.46ppb
O3
0.75ppb
SO2
7.77ppb
NO2
0.33ppm
CO
AQI 43
Good
3.59μg/m³
PM2.5
27.64μg/m³
PM10
46.42ppb
O3
0.75ppb
SO2
8.02ppb
NO2
0.34ppm
CO
AQI 44
Good
4.20μg/m³
PM2.5
25.77μg/m³
PM10
47.32ppb
O3
0.85ppb
SO2
8.12ppb
NO2
0.35ppm
CO
AQI 44
Good
3.65μg/m³
PM2.5
16.42μg/m³
PM10
46.55ppb
O3
0.76ppb
SO2
8.18ppb
NO2
0.34ppm
CO
AQI 44
Good
8.11μg/m³
PM2.5
35.81μg/m³
PM10
38.93ppb
O3
0.74ppb
SO2
7.95ppb
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 11:00:00 on 2025-10-22.
In the last 24 hours, the best air quality in Longview, Texas was observed at 09:00:00 on 2025-10-22.
As of now, the AQI in Longview, Texas is 43, indicating Good 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 3.924 μg/m3.
The PM10 concentration in Longview, Texas is 18.586 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Longview, Texas is 0.339 ppm.
Currently, Longview, Texas has a sulfur dioxide (SO2) concentration of 0.757 ppb.
The current ozone (O3) level in Longview, Texas at the moment is 46.483 ppm.
Nitrogen dioxide (NO2) level in Longview, Texas at the moment is 8.018 ppb.
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