Stay updated with real-time air quality in Chattanooga, Tennessee 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)
38
Good
Chattanooga, Tennessee
Last updated: ... (Local time)
Good
Fine
Moderate
Poor
Very poor
Hazardous
7.42 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
31.79 μg/m³
0
55
155
255
425
605+
23.93 ppb
0
55
71
86
201
201+
2.29 ppb
0
36
76
186
605
1005+
11.07 ppb
0
54
101
361
1250
2050+
0.29 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Chattanooga, Tennessee
Chattanooga, Tennessee
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AQI 33
Good
3.61μg/m³
PM2.5
14.41μg/m³
PM10
35.78ppb
O3
5.49ppb
SO2
3.33ppb
NO2
0.22ppm
CO
AQI 33
Good
3.37μg/m³
PM2.5
11.09μg/m³
PM10
35.62ppb
O3
5.47ppb
SO2
3.34ppb
NO2
0.22ppm
CO
AQI 32
Good
3.24μg/m³
PM2.5
9.13μg/m³
PM10
35.43ppb
O3
5.46ppb
SO2
3.34ppb
NO2
0.22ppm
CO
AQI 31
Good
3.60μg/m³
PM2.5
9.66μg/m³
PM10
33.61ppb
O3
5.67ppb
SO2
3.31ppb
NO2
0.22ppm
CO
AQI 33
Good
3.78μg/m³
PM2.5
26.63μg/m³
PM10
35.98ppb
O3
5.55ppb
SO2
3.33ppb
NO2
0.22ppm
CO
AQI 31
Good
3.62μg/m³
PM2.5
8.72μg/m³
PM10
33.00ppb
O3
5.70ppb
SO2
3.30ppb
NO2
0.22ppm
CO
Air quality data and pollutant measurements for Tennessee, 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 Chattanooga, Tennessee is updated every hour.
The worst air quality in Chattanooga, Tennessee in the last 24 hours was observed at 07:00:00 on 2025-10-21.
In the last 24 hrs, the best air quality in Chattanooga, Tennessee was observed at 11:00:00 on 2025-10-21.
The current air quality in Chattanooga, Tennessee is 38, categorized as Good based on real-time data.
The most common pollutant in Chattanooga, Tennessee is PM2.5.
If the air quality in Chattanooga, Tennessee is poor, consider staying indoors and wearing a mask to protect yourself.
The current PM2.5 concentration at Chattanooga, Tennessee is 7.424 μg/m3.
The current PM10 concentration at Chattanooga, Tennessee is 31.79 μg/m3.
The current carbon monoxide (CO) concentration at Chattanooga, Tennessee is 0.294 ppm.
The current sulfur dioxide (SO2) concentration at Chattanooga, Tennessee is 2.29 ppb.
The current ozone (O3) concentration at Chattanooga, Tennessee is 23.926 ppm.
The current nitrogen dioxide (NO2) concentration at Chattanooga, Tennessee is 11.074 ppb.
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