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)
33
Good
Decatur, Georgia
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
6.41 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
17.85 μg/m³
0
55
155
255
425
605+
17.84 ppb
0
55
71
86
201
201+
0.16 ppb
0
36
76
186
605
1005+
23.66 ppb
0
54
101
361
1250
2050+
0.44 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Decatur, Georgia
Decatur, Georgia
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AQI 38
Good
6.58μg/m³
PM2.5
16.15μg/m³
PM10
14.61ppb
O3
0.16ppb
SO2
26.17ppb
NO2
0.54ppm
CO
AQI 38
Good
7.42μg/m³
PM2.5
14.79μg/m³
PM10
14.39ppb
O3
0.17ppb
SO2
25.16ppb
NO2
0.42ppm
CO
AQI 44
Good
8.48μg/m³
PM2.5
13.52μg/m³
PM10
14.15ppb
O3
0.17ppb
SO2
24.92ppb
NO2
0.28ppm
CO
AQI 33
Good
6.21μg/m³
PM2.5
17.76μg/m³
PM10
14.78ppb
O3
0.16ppb
SO2
26.95ppb
NO2
0.64ppm
CO
AQI 44
Good
8.48μg/m³
PM2.5
13.52μg/m³
PM10
14.15ppb
O3
0.17ppb
SO2
24.92ppb
NO2
0.28ppm
CO
AQI 33
Good
6.19μg/m³
PM2.5
26.82μg/m³
PM10
14.83ppb
O3
0.18ppb
SO2
22.83ppb
NO2
0.47ppm
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 05:00:00 on 2026-01-22.
The best air quality in Decatur, Georgia was recorded at 10:00:00 on 2026-01-22.
The real-time air quality index in Decatur, Georgia is 38, 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 6.864 μg/m3.
The current PM10 levels in Decatur, Georgia are 15.105 μg/m3.
The current carbon monoxide (CO) level in Decatur, Georgia is 0.47 ppm.
The current sulfur dioxide (SO2) levels in Decatur, Georgia are 0.157 ppb.
The current ozone (O3) levels at Decatur, Georgia is 14.501 ppm.
The current nitrogen dioxide (NO2) levels at Decatur, Georgia is 25.73 ppb.
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