Stay updated with real-time air quality in Brown Deer, Wisconsin 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)
27
Good
Brown Deer, Wisconsin
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
5.41 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
13.83 μg/m³
0
55
155
255
425
605+
5.29 ppb
0
55
71
86
201
201+
0.34 ppb
0
36
76
186
605
1005+
8.33 ppb
0
54
101
361
1250
2050+
0.34 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Brown Deer, Wisconsin
Brown Deer, Wisconsin
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AQI 33
Good
5.85μg/m³
PM2.5
16.10μg/m³
PM10
6.83ppb
O3
0.33ppb
SO2
9.17ppb
NO2
0.27ppm
CO
AQI 33
Good
6.18μg/m³
PM2.5
18.93μg/m³
PM10
1.09ppb
O3
0.10ppb
SO2
6.26ppb
NO2
0.28ppm
CO
AQI 33
Good
5.68μg/m³
PM2.5
16.80μg/m³
PM10
7.92ppb
O3
0.40ppb
SO2
9.75ppb
NO2
0.27ppm
CO
AQI 33
Good
6.17μg/m³
PM2.5
18.58μg/m³
PM10
1.81ppb
O3
0.13ppb
SO2
6.74ppb
NO2
0.28ppm
CO
AQI 38
Good
6.76μg/m³
PM2.5
14.22μg/m³
PM10
12.12ppb
O3
0.65ppb
SO2
8.99ppb
NO2
0.26ppm
CO
AQI 33
Good
6.29μg/m³
PM2.5
14.76μg/m³
PM10
8.37ppb
O3
0.41ppb
SO2
11.56ppb
NO2
0.28ppm
CO
Air quality and pollutant data for Wisconsin, 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 Brown Deer, Wisconsin is updated every hour for accuracy.
In the past 24 hours, the air quality in Brown Deer, Wisconsin was at its worst at 03:00:00 on 2026-09-07.
In the last 24 hours, the best air quality in Brown Deer, Wisconsin was observed at 09:00:00 on 2026-09-07.
As of now, the AQI in Brown Deer, Wisconsin is 27, indicating Good conditions.
Brown Deer, Wisconsin air has the highest levels of PM2.5.
Poor air quality in Brown Deer, Wisconsin means it's advisable to stay indoors and wear a mask for your protection.
PM2.5 levels in Brown Deer, Wisconsin are currently 5.413 μg/m3.
The PM10 concentration in Brown Deer, Wisconsin is 13.832 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Brown Deer, Wisconsin is 0.339 ppm.
Currently, Brown Deer, Wisconsin has a sulfur dioxide (SO2) concentration of 0.344 ppb.
The current ozone (O3) level in Brown Deer, Wisconsin at the moment is 5.293 ppm.
Nitrogen dioxide (NO2) level in Brown Deer, Wisconsin at the moment is 8.326 ppb.
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