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
8.58 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
28.88 μg/m³
0
55
155
255
425
605+
14.45 ppb
0
55
71
86
201
201+
0.27 ppb
0
36
76
186
605
1005+
12.44 ppb
0
54
101
361
1250
2050+
0.30 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
7.98μg/m³
PM2.5
27.08μg/m³
PM10
8.62ppb
O3
1.12ppb
SO2
13.14ppb
NO2
0.38ppm
CO
AQI 44
Good
8.20μg/m³
PM2.5
24.69μg/m³
PM10
6.35ppb
O3
1.12ppb
SO2
13.09ppb
NO2
0.35ppm
CO
AQI 49
Good
8.56μg/m³
PM2.5
22.19μg/m³
PM10
3.19ppb
O3
1.10ppb
SO2
13.37ppb
NO2
0.32ppm
CO
AQI 44
Good
7.72μg/m³
PM2.5
28.09μg/m³
PM10
10.00ppb
O3
1.12ppb
SO2
13.22ppb
NO2
0.41ppm
CO
AQI 49
Good
8.56μg/m³
PM2.5
22.19μg/m³
PM10
3.19ppb
O3
1.10ppb
SO2
13.37ppb
NO2
0.32ppm
CO
AQI 38
Good
7.29μg/m³
PM2.5
29.96μg/m³
PM10
11.78ppb
O3
1.10ppb
SO2
12.68ppb
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 05:00:00 on 2025-07-13.
The best air quality in Decatur, Georgia was recorded at 02:00:00 on 2025-07-14.
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 8.576 μg/m3.
The current PM10 levels in Decatur, Georgia are 28.879 μg/m3.
The current carbon monoxide (CO) level in Decatur, Georgia is 0.3 ppm.
The current sulfur dioxide (SO2) levels in Decatur, Georgia are 0.273 ppb.
The current ozone (O3) levels at Decatur, Georgia is 14.453 ppm.
The current nitrogen dioxide (NO2) levels at Decatur, Georgia is 12.442 ppb.
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