Stay updated with real-time air quality in Mountain Brook, 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)
25
Good
Mountain Brook, Alabama
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
4.37 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
12.17 μg/m³
0
55
155
255
425
605+
26.83 ppb
0
55
71
86
201
201+
0.38 ppb
0
36
76
186
605
1005+
4.29 ppb
0
54
101
361
1250
2050+
0.22 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Mountain Brook, Alabama
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AQI 25
Good
4.19μg/m³
PM2.5
13.03μg/m³
PM10
26.89ppb
O3
0.38ppb
SO2
4.32ppb
NO2
0.22ppm
CO
AQI 25
Good
4.47μg/m³
PM2.5
10.45μg/m³
PM10
27.07ppb
O3
0.38ppb
SO2
4.25ppb
NO2
0.22ppm
CO
AQI 27
Good
5.49μg/m³
PM2.5
26.29μg/m³
PM10
26.30ppb
O3
0.39ppb
SO2
4.32ppb
NO2
0.22ppm
CO
AQI 25
Good
4.29μg/m³
PM2.5
13.38μg/m³
PM10
26.70ppb
O3
0.38ppb
SO2
4.32ppb
NO2
0.22ppm
CO
AQI 27
Good
4.80μg/m³
PM2.5
18.75μg/m³
PM10
24.99ppb
O3
0.38ppb
SO2
4.41ppb
NO2
0.22ppm
CO
AQI 27
Good
5.34μg/m³
PM2.5
24.02μg/m³
PM10
28.30ppb
O3
0.38ppb
SO2
4.33ppb
NO2
0.22ppm
CO
Air quality and pollutant data for Alabama, USA are sourced from ground-based monitors and satellites, adhering to US EPA standards. Machine learning and advanced algorithms enhance the data by incorporating local variables like traffic and population density, ensuring high accuracy and dependability.
Source: Ambee Data Sources
The air quality information for Mountain Brook, Alabama is updated every hour for accuracy.
In the past 24 hours, the air quality in Mountain Brook, Alabama was at its worst at 03:00:00 on 2026-03-09.
In the last 24 hours, the best air quality in Mountain Brook, Alabama was observed at 03:00:00 on 2026-03-09.
As of now, the AQI in Mountain Brook, Alabama is 25, indicating Good conditions.
Mountain Brook, Alabama air has the highest levels of O3.
Poor air quality in Mountain Brook, Alabama means it's advisable to stay indoors and wear a mask for your protection.
PM2.5 levels in Mountain Brook, Alabama are currently 4.371 μg/m3.
The PM10 concentration in Mountain Brook, Alabama is 12.172 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Mountain Brook, Alabama is 0.219 ppm.
Currently, Mountain Brook, Alabama has a sulfur dioxide (SO2) concentration of 0.383 ppb.
The current ozone (O3) level in Mountain Brook, Alabama at the moment is 26.832 ppm.
Nitrogen dioxide (NO2) level in Mountain Brook, Alabama at the moment is 4.289 ppb.
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