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)
49
Good
Chattanooga, Tennessee
Last updated: ... (Local time)
Good
Fine
Moderate
Poor
Very poor
Hazardous
8.65 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
36.63 μg/m³
0
55
155
255
425
605+
44.40 ppb
0
55
71
86
201
201+
2.85 ppb
0
36
76
186
605
1005+
4.94 ppb
0
54
101
361
1250
2050+
0.23 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
High
Chattanooga, Tennessee
Chattanooga, Tennessee
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AQI 49
Good
8.87μg/m³
PM2.5
36.82μg/m³
PM10
26.66ppb
O3
1.75ppb
SO2
7.30ppb
NO2
0.27ppm
CO
AQI 44
Good
8.37μg/m³
PM2.5
29.88μg/m³
PM10
26.61ppb
O3
1.75ppb
SO2
7.31ppb
NO2
0.27ppm
CO
AQI 44
Good
8.18μg/m³
PM2.5
26.91μg/m³
PM10
26.70ppb
O3
1.75ppb
SO2
7.32ppb
NO2
0.27ppm
CO
AQI 44
Good
7.55μg/m³
PM2.5
23.70μg/m³
PM10
27.58ppb
O3
1.73ppb
SO2
7.21ppb
NO2
0.27ppm
CO
AQI 38
Good
7.19μg/m³
PM2.5
21.54μg/m³
PM10
27.02ppb
O3
1.74ppb
SO2
7.28ppb
NO2
0.28ppm
CO
AQI 38
Good
7.46μg/m³
PM2.5
23.06μg/m³
PM10
28.00ppb
O3
1.73ppb
SO2
7.20ppb
NO2
0.27ppm
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 03:00:00 on 2025-08-30.
In the last 24 hrs, the best air quality in Chattanooga, Tennessee was observed at 02:00:00 on 2025-08-30.
The current air quality in Chattanooga, Tennessee is 49, 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 9.393 μg/m3.
The current PM10 concentration at Chattanooga, Tennessee is 40.595 μg/m3.
The current carbon monoxide (CO) concentration at Chattanooga, Tennessee is 0.278 ppm.
The current sulfur dioxide (SO2) concentration at Chattanooga, Tennessee is 2.458 ppb.
The current ozone (O3) concentration at Chattanooga, Tennessee is 35.464 ppm.
The current nitrogen dioxide (NO2) concentration at Chattanooga, Tennessee is 6.732 ppb.
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