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)
52
Moderate
Brown Deer, Wisconsin
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
10.02 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
38.41 μg/m³
0
55
155
255
425
605+
36.09 ppb
0
55
71
86
201
201+
0.14 ppb
0
36
76
186
605
1005+
1.48 ppb
0
54
101
361
1250
2050+
0.20 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 52
Moderate
10.02μg/m³
PM2.5
38.41μg/m³
PM10
36.09ppb
O3
0.14ppb
SO2
1.48ppb
NO2
0.20ppm
CO
AQI 54
Moderate
10.95μg/m³
PM2.5
41.86μg/m³
PM10
39.94ppb
O3
0.10ppb
SO2
0.42ppb
NO2
0.20ppm
CO
AQI 52
Moderate
9.62μg/m³
PM2.5
35.62μg/m³
PM10
35.88ppb
O3
0.16ppb
SO2
1.77ppb
NO2
0.20ppm
CO
AQI 54
Moderate
10.90μg/m³
PM2.5
40.65μg/m³
PM10
39.50ppb
O3
0.11ppb
SO2
0.61ppb
NO2
0.20ppm
CO
AQI 52
Moderate
9.68μg/m³
PM2.5
48.20μg/m³
PM10
36.56ppb
O3
0.22ppb
SO2
2.28ppb
NO2
0.20ppm
CO
AQI 54
Moderate
10.86μg/m³
PM2.5
26.53μg/m³
PM10
35.82ppb
O3
0.16ppb
SO2
2.55ppb
NO2
0.20ppm
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 2026-08-14.
In the last 24 hours, the best air quality in Brown Deer, Wisconsin was observed at 06:00:00 on 2026-08-14.
As of now, the AQI in Brown Deer, Wisconsin is 52, indicating Moderate 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 10.018 μg/m3.
The PM10 concentration in Brown Deer, Wisconsin is 38.414 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Brown Deer, Wisconsin is 0.2 ppm.
Currently, Brown Deer, Wisconsin has a sulfur dioxide (SO2) concentration of 0.144 ppb.
The current ozone (O3) level in Brown Deer, Wisconsin at the moment is 36.085 ppm.
Nitrogen dioxide (NO2) level in Brown Deer, Wisconsin at the moment is 1.478 ppb.
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