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)
17
Good
Portage, Wisconsin
Last updated: ... (Local time)
Good
Fine
Moderate
Poor
Very poor
Hazardous
2.30 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
9.53 μg/m³
0
55
155
255
425
605+
18.33 ppb
0
55
71
86
201
201+
0.53 ppb
0
36
76
186
605
1005+
3.83 ppb
0
54
101
361
1250
2050+
0.15 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Portage, Wisconsin
Scroll To Air Quality MapLoading...
AQI 19
Good
2.12μg/m³
PM2.5
7.33μg/m³
PM10
19.91ppb
O3
0.52ppb
SO2
3.39ppb
NO2
0.15ppm
CO
AQI 17
Good
2.48μg/m³
PM2.5
9.06μg/m³
PM10
17.61ppb
O3
0.51ppb
SO2
3.63ppb
NO2
0.15ppm
CO
AQI 18
Good
2.27μg/m³
PM2.5
11.79μg/m³
PM10
19.00ppb
O3
0.51ppb
SO2
3.61ppb
NO2
0.15ppm
CO
AQI 18
Good
2.63μg/m³
PM2.5
10.03μg/m³
PM10
18.69ppb
O3
0.52ppb
SO2
3.19ppb
NO2
0.18ppm
CO
AQI 16
Good
2.54μg/m³
PM2.5
13.94μg/m³
PM10
17.27ppb
O3
0.50ppb
SO2
4.12ppb
NO2
0.15ppm
CO
AQI 18
Good
2.40μg/m³
PM2.5
14.19μg/m³
PM10
19.02ppb
O3
0.51ppb
SO2
3.57ppb
NO2
0.16ppm
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 2025-09-04.
In the last 24 hours, the best air quality in Portage, Wisconsin was observed at 01:00:00 on 2025-09-04.
As of now, the AQI in Portage, Wisconsin is 38, indicating Good 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 6.747 μg/m3.
The PM10 concentration in Portage, Wisconsin is 27.004 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Portage, Wisconsin is 0.201 ppm.
Currently, Portage, Wisconsin has a sulfur dioxide (SO2) concentration of 1.076 ppb.
The current ozone (O3) level in Portage, Wisconsin at the moment is 25.862 ppm.
Nitrogen dioxide (NO2) level in Portage, Wisconsin at the moment is 5.939 ppb.
All Rights Reserved © Ambee Inc. 2025