Stay updated with real-time air quality in Portage, 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)
82
Moderate
Portage, Wisconsin
Last updated: ... (Local time)
Good
Fine
Moderate
Poor
Very poor
Hazardous
26.42 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
65.25 μg/m³
0
55
155
255
425
605+
37.78 ppb
0
55
71
86
201
201+
0.31 ppb
0
36
76
186
605
1005+
3.29 ppb
0
54
101
361
1250
2050+
0.30 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Portage, Wisconsin
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AQI 77
Moderate
22.73μg/m³
PM2.5
38.16μg/m³
PM10
37.95ppb
O3
0.34ppb
SO2
7.20ppb
NO2
0.28ppm
CO
AQI 107
Unhealthy for sensitive groups
38.23μg/m³
PM2.5
88.21μg/m³
PM10
46.13ppb
O3
0.60ppb
SO2
10.30ppb
NO2
0.29ppm
CO
AQI 88
Moderate
28.65μg/m³
PM2.5
82.35μg/m³
PM10
34.03ppb
O3
0.57ppb
SO2
9.47ppb
NO2
0.29ppm
CO
AQI 82
Moderate
25.57μg/m³
PM2.5
93.50μg/m³
PM10
36.96ppb
O3
0.32ppb
SO2
6.27ppb
NO2
0.26ppm
CO
AQI 92
Moderate
31.38μg/m³
PM2.5
64.88μg/m³
PM10
46.27ppb
O3
0.59ppb
SO2
13.94ppb
NO2
0.29ppm
CO
AQI 86
Moderate
28.48μg/m³
PM2.5
65.02μg/m³
PM10
34.16ppb
O3
0.58ppb
SO2
9.26ppb
NO2
0.29ppm
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 Portage, Wisconsin is updated every hour for accuracy.
In the past 24 hours, the air quality in Portage, Wisconsin was at its worst at 05:00:00 on 2025-06-06.
In the last 24 hours, the best air quality in Portage, Wisconsin was observed at 10:00:00 on 2025-06-05.
As of now, the AQI in Portage, Wisconsin is 82, indicating Moderate conditions.
Portage, Wisconsin air has the highest levels of PM2.5.
Poor air quality in Portage, Wisconsin means it's advisable to stay indoors and wear a mask for your protection.
PM2.5 levels in Portage, Wisconsin are currently 26.421 μg/m3.
The PM10 concentration in Portage, Wisconsin is 65.247 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Portage, Wisconsin is 0.298 ppm.
Currently, Portage, Wisconsin has a sulfur dioxide (SO2) concentration of 0.311 ppb.
The current ozone (O3) level in Portage, Wisconsin at the moment is 37.783 ppm.
Nitrogen dioxide (NO2) level in Portage, Wisconsin at the moment is 3.292 ppb.
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