Stay updated with real-time air quality in Mequon, 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)
25
Good
Mequon, Wisconsin
Last updated: ... (Local time)
Good
Fine
Moderate
Poor
Very poor
Hazardous
3.11 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
14.54 μg/m³
0
55
155
255
425
605+
26.50 ppb
0
55
71
86
201
201+
0.75 ppb
0
36
76
186
605
1005+
1.26 ppb
0
54
101
361
1250
2050+
0.18 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Moderate
Mequon, Wisconsin
Mequon, Wisconsin
Scroll To Air Quality MapLoading...
AQI 21
Good
2.40μg/m³
PM2.5
12.62μg/m³
PM10
23.00ppb
O3
0.81ppb
SO2
5.20ppb
NO2
0.22ppm
CO
AQI 21
Good
2.47μg/m³
PM2.5
10.43μg/m³
PM10
22.55ppb
O3
0.80ppb
SO2
4.03ppb
NO2
0.26ppm
CO
AQI 21
Good
2.51μg/m³
PM2.5
11.18μg/m³
PM10
23.38ppb
O3
0.80ppb
SO2
5.32ppb
NO2
0.23ppm
CO
AQI 20
Good
2.08μg/m³
PM2.5
8.91μg/m³
PM10
22.27ppb
O3
0.81ppb
SO2
4.53ppb
NO2
0.23ppm
CO
AQI 21
Good
2.47μg/m³
PM2.5
10.43μg/m³
PM10
22.55ppb
O3
0.80ppb
SO2
4.03ppb
NO2
0.26ppm
CO
AQI 20
Good
1.96μg/m³
PM2.5
8.44μg/m³
PM10
22.07ppb
O3
0.81ppb
SO2
4.69ppb
NO2
0.23ppm
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 Mequon, Wisconsin is updated every hour for accuracy.
In the past 24 hours, the air quality in Mequon, Wisconsin was at its worst at 10:00:00 on 2025-09-05.
In the last 24 hours, the best air quality in Mequon, Wisconsin was observed at 04:00:00 on 2025-09-05.
As of now, the AQI in Mequon, Wisconsin is 23, indicating Good conditions.
Mequon, Wisconsin air has the highest levels of PM10.
Poor air quality in Mequon, Wisconsin means it's advisable to stay indoors and wear a mask for your protection.
PM2.5 levels in Mequon, Wisconsin are currently 3.57 μg/m3.
The PM10 concentration in Mequon, Wisconsin is 24.649 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Mequon, Wisconsin is 0.254 ppm.
Currently, Mequon, Wisconsin has a sulfur dioxide (SO2) concentration of 0.795 ppb.
The current ozone (O3) level in Mequon, Wisconsin at the moment is 22.494 ppm.
Nitrogen dioxide (NO2) level in Mequon, Wisconsin at the moment is 4.494 ppb.
All Rights Reserved © Ambee Inc. 2025