Stay updated with real-time air quality in Decatur, Georgia 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
Decatur, Georgia
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
8.57 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
30.28 μg/m³
0
55
155
255
425
605+
7.20 ppb
0
55
71
86
201
201+
0.11 ppb
0
36
76
186
605
1005+
11.04 ppb
0
54
101
361
1250
2050+
0.33 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Decatur, Georgia
Decatur, Georgia
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AQI 44
Good
7.79μg/m³
PM2.5
28.47μg/m³
PM10
8.17ppb
O3
0.17ppb
SO2
12.49ppb
NO2
0.38ppm
CO
AQI 38
Good
7.11μg/m³
PM2.5
22.80μg/m³
PM10
6.88ppb
O3
0.18ppb
SO2
12.93ppb
NO2
0.35ppm
CO
AQI 38
Good
6.59μg/m³
PM2.5
17.64μg/m³
PM10
5.16ppb
O3
0.19ppb
SO2
13.78ppb
NO2
0.32ppm
CO
AQI 49
Good
8.78μg/m³
PM2.5
34.53μg/m³
PM10
8.96ppb
O3
0.17ppb
SO2
12.06ppb
NO2
0.41ppm
CO
AQI 38
Good
6.59μg/m³
PM2.5
17.64μg/m³
PM10
5.16ppb
O3
0.19ppb
SO2
13.78ppb
NO2
0.32ppm
CO
AQI 52
Moderate
9.66μg/m³
PM2.5
29.47μg/m³
PM10
6.61ppb
O3
0.22ppb
SO2
12.03ppb
NO2
0.36ppm
CO
Air quality measurements for Georgia, USA meet strict US EPA standards. These measurements are collected from reliable sources, including satellites and ground-based monitoring systems. Advanced algorithms and machine learning techniques are applied to the data, factoring in variables such as traffic and population density, to ensure precision and reliability.
Source: Ambee Data Sources
Air quality data for Decatur, Georgia is updated on an hourly basis.
The worst air quality in Decatur, Georgia was recorded at 04:00:00 on 2026-06-07.
The best air quality in Decatur, Georgia was recorded at 12:00:00 on 2026-06-08.
The real-time air quality index in Decatur, Georgia is 49, currently categorized as Good.
The most common pollutant in Decatur, Georgia is PM2.5.
If the air quality in Decatur, Georgia is poor, limit outdoor activities and use a mask to safeguard your health.
The measured PM2.5 levels in Decatur, Georgia at present are 8.566 μg/m3.
The current PM10 levels in Decatur, Georgia are 30.28 μg/m3.
The current carbon monoxide (CO) level in Decatur, Georgia is 0.332 ppm.
The current sulfur dioxide (SO2) levels in Decatur, Georgia are 0.111 ppb.
The current ozone (O3) levels at Decatur, Georgia is 7.201 ppm.
The current nitrogen dioxide (NO2) levels at Decatur, Georgia is 11.039 ppb.
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