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)
54
Moderate
Portage, Wisconsin
Last updated: ... (Local time)
Good
Fine
Moderate
Poor
Very poor
Hazardous
11.26 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
54.82 μg/m³
0
55
155
255
425
605+
48.87 ppb
0
55
71
86
201
201+
0.72 ppb
0
36
76
186
605
1005+
2.13 ppb
0
54
101
361
1250
2050+
0.82 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Portage, Wisconsin
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AQI 54
Moderate
11.00μg/m³
PM2.5
17.39μg/m³
PM10
29.38ppb
O3
0.48ppb
SO2
2.45ppb
NO2
0.30ppm
CO
AQI 49
Good
9.20μg/m³
PM2.5
29.95μg/m³
PM10
33.68ppb
O3
0.47ppb
SO2
2.61ppb
NO2
0.32ppm
CO
AQI 52
Moderate
9.56μg/m³
PM2.5
26.34μg/m³
PM10
34.78ppb
O3
0.47ppb
SO2
2.58ppb
NO2
0.31ppm
CO
AQI 52
Moderate
9.63μg/m³
PM2.5
32.33μg/m³
PM10
33.82ppb
O3
0.47ppb
SO2
2.31ppb
NO2
0.34ppm
CO
AQI 44
Good
8.23μg/m³
PM2.5
29.45μg/m³
PM10
33.87ppb
O3
0.47ppb
SO2
2.64ppb
NO2
0.32ppm
CO
AQI 52
Moderate
9.95μg/m³
PM2.5
20.99μg/m³
PM10
34.70ppb
O3
0.47ppb
SO2
2.57ppb
NO2
0.30ppm
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 01:00:00 on 2025-07-21.
In the last 24 hours, the best air quality in Portage, Wisconsin was observed at 08:00:00 on 2025-07-20.
As of now, the AQI in Portage, Wisconsin is 92, 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 31.05 μg/m3.
The PM10 concentration in Portage, Wisconsin is 90.519 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Portage, Wisconsin is 0.316 ppm.
Currently, Portage, Wisconsin has a sulfur dioxide (SO2) concentration of 0.481 ppb.
The current ozone (O3) level in Portage, Wisconsin at the moment is 33.103 ppm.
Nitrogen dioxide (NO2) level in Portage, Wisconsin at the moment is 3.429 ppb.
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