Stay updated with real-time air quality in Decatur, Alabama 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, Alabama
Last updated: ... (Local time)
Good
Fine
Moderate
Poor
Very poor
Hazardous
9.21 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
40.85 μg/m³
0
55
155
255
425
605+
6.81 ppb
0
55
71
86
201
201+
0.57 ppb
0
36
76
186
605
1005+
11.79 ppb
0
54
101
361
1250
2050+
0.47 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Decatur, Alabama
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AQI 52
Moderate
10.03μg/m³
PM2.5
43.99μg/m³
PM10
6.73ppb
O3
1.06ppb
SO2
13.12ppb
NO2
0.53ppm
CO
AQI 49
Good
9.29μg/m³
PM2.5
39.21μg/m³
PM10
8.65ppb
O3
1.06ppb
SO2
12.97ppb
NO2
0.50ppm
CO
AQI 44
Good
7.52μg/m³
PM2.5
34.10μg/m³
PM10
10.45ppb
O3
1.08ppb
SO2
13.04ppb
NO2
0.51ppm
CO
AQI 22
Good
3.61μg/m³
PM2.5
16.39μg/m³
PM10
12.87ppb
O3
1.09ppb
SO2
13.02ppb
NO2
0.51ppm
CO
AQI 44
Good
7.99μg/m³
PM2.5
37.61μg/m³
PM10
7.96ppb
O3
1.09ppb
SO2
13.04ppb
NO2
0.50ppm
CO
AQI 54
Moderate
11.44μg/m³
PM2.5
37.01μg/m³
PM10
22.32ppb
O3
1.06ppb
SO2
14.05ppb
NO2
0.54ppm
CO
Air quality data and pollutant measurements for Alabama, 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 Decatur, Alabama is updated every hour.
The worst air quality in Decatur, Alabama in the last 24 hours was observed at 12:00:00 on 2025-06-01.
In the last 24 hrs, the best air quality in Decatur, Alabama was observed at 12:00:00 on 2025-06-02.
The current air quality in Decatur, Alabama is 49, categorized as Good based on real-time data.
The most common pollutant in Decatur, Alabama is PM2.5.
If the air quality in Decatur, Alabama is poor, consider staying indoors and wearing a mask to protect yourself.
The current PM2.5 concentration at Decatur, Alabama is 9.212 μg/m3.
The current PM10 concentration at Decatur, Alabama is 40.853 μg/m3.
The current carbon monoxide (CO) concentration at Decatur, Alabama is 0.471 ppm.
The current sulfur dioxide (SO2) concentration at Decatur, Alabama is 0.572 ppb.
The current ozone (O3) concentration at Decatur, Alabama is 6.812 ppm.
The current nitrogen dioxide (NO2) concentration at Decatur, Alabama is 11.786 ppb.
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