Stay updated with real-time air quality in Wisconsin, USA 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)
39
Good
Wisconsin, USA
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
3.44 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
11.67 μg/m³
0
55
155
255
425
605+
42.14 ppb
0
55
71
86
201
201+
0.24 ppb
0
36
76
186
605
1005+
2.64 ppb
0
54
101
361
1250
2050+
0.16 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Moderate
Wisconsin, USA
Wisconsin, USA
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| City | AQI | PM2.5 | PM10 | O3 | SO2 | NO2 | CO |
|---|---|---|---|---|---|---|---|
AQI 31
Good
4.77μg/m³
PM2.5
18.16μg/m³
PM10
33.87ppb
O3
0.62ppb
SO2
2.53ppb
NO2
0.18ppm
CO
AQI 38
Good
3.61μg/m³
PM2.5
15.32μg/m³
PM10
41.20ppb
O3
0.42ppb
SO2
2.13ppb
NO2
0.14ppm
CO
AQI 38
Good
3.12μg/m³
PM2.5
13.55μg/m³
PM10
41.08ppb
O3
0.78ppb
SO2
1.74ppb
NO2
0.14ppm
CO
AQI 33
Good
4.03μg/m³
PM2.5
16.38μg/m³
PM10
36.43ppb
O3
0.74ppb
SO2
2.61ppb
NO2
0.16ppm
CO
AQI 38
Good
2.71μg/m³
PM2.5
10.74μg/m³
PM10
40.64ppb
O3
0.40ppb
SO2
4.36ppb
NO2
0.23ppm
CO
AQI 32
Good
3.40μg/m³
PM2.5
12.51μg/m³
PM10
34.52ppb
O3
1.12ppb
SO2
3.61ppb
NO2
0.16ppm
CO
The air quality data for Wisconsin, USA is gathered from reliable sources such as satellites and monitoring stations, adhering to US EPA guidelines. With the help of advanced algorithms and machine learning, factors like traffic and population density are analyzed to deliver accurate and dependable results.
Source: Ambee Data Sources
Air quality updates for Wisconsin, USA are available every hour.
Wisconsin, USA experienced its worst air quality at 06:00:00, 2026-04-18.
The best air quality in Wisconsin, USA was observed at 01:00:00 on 2026-04-18.
The air quality in Wisconsin, USA right now is Good, with an AQI of 39.
In Wisconsin, USA, O3 is the most frequently found pollutant.
When air quality in Wisconsin, USA is compromised, staying indoors and wearing a mask can reduce health risks.
Wisconsin, USA currently has a PM2.5 concentration of 3.441 μg/m3.
Wisconsin, USA currently has a PM10 concentration of 11.671 μg/m3.
The current carbon monoxide (CO) level in Wisconsin, USA is 0.157 ppm.
The current sulfur dioxide (SO2) concentration in Wisconsin, USA is 0.244 ppb.
Wisconsin, USA currently has an ozone (O3) concentration of 42.138 ppm.
The current level of nitrogen dioxide (NO2) in Wisconsin, USA is 2.64 ppb.
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