Stay updated with real-time air quality in Appleton, 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)
27
Good
Appleton, Wisconsin
Last updated: ... (Local time)
Good
Fine
Moderate
Poor
Very poor
Hazardous
4.62 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
20.36 μg/m³
0
55
155
255
425
605+
21.94 ppb
0
55
71
86
201
201+
0.84 ppb
0
36
76
186
605
1005+
7.57 ppb
0
54
101
361
1250
2050+
0.23 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Moderate
Appleton, Wisconsin
Appleton, Wisconsin
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AQI 27
Good
5.13μg/m³
PM2.5
21.34μg/m³
PM10
24.78ppb
O3
0.88ppb
SO2
9.43ppb
NO2
0.25ppm
CO
AQI 22
Good
4.48μg/m³
PM2.5
14.47μg/m³
PM10
23.75ppb
O3
0.78ppb
SO2
8.36ppb
NO2
0.24ppm
CO
AQI 27
Good
4.59μg/m³
PM2.5
14.74μg/m³
PM10
24.09ppb
O3
0.96ppb
SO2
9.44ppb
NO2
0.26ppm
CO
AQI 27
Good
4.67μg/m³
PM2.5
15.66μg/m³
PM10
24.20ppb
O3
0.95ppb
SO2
9.45ppb
NO2
0.26ppm
CO
AQI 22
Good
4.48μg/m³
PM2.5
14.47μg/m³
PM10
23.75ppb
O3
0.78ppb
SO2
8.36ppb
NO2
0.24ppm
CO
AQI 27
Good
4.59μg/m³
PM2.5
13.92μg/m³
PM10
23.73ppb
O3
0.81ppb
SO2
8.24ppb
NO2
0.25ppm
CO
Air quality measurements for Wisconsin, USA meet strict US EPA standards. These measurements are collected from reliable sources, including satellites and ground-based monitoring systems. Advanced algorithms and machine learning techniques are applied to the data, factoring in variables such as traffic and population density, to ensure precision and reliability.
Source: Ambee Data Sources
Air quality data for Appleton, Wisconsin is updated on an hourly basis.
The worst air quality in Appleton, Wisconsin was recorded at 09:00:00 on 2025-09-06.
The best air quality in Appleton, Wisconsin was recorded at 03:00:00 on 2025-09-07.
The real-time air quality index in Appleton, Wisconsin is 27, currently categorized as Good.
The most common pollutant in Appleton, Wisconsin is PM2.5.
If the air quality in Appleton, Wisconsin is poor, limit outdoor activities and use a mask to safeguard your health.
The measured PM2.5 levels in Appleton, Wisconsin at present are 4.616 μg/m3.
The current PM10 levels in Appleton, Wisconsin are 20.36 μg/m3.
The current carbon monoxide (CO) level in Appleton, Wisconsin is 0.227 ppm.
The current sulfur dioxide (SO2) levels in Appleton, Wisconsin are 0.836 ppb.
The current ozone (O3) levels at Appleton, Wisconsin is 21.939 ppm.
The current nitrogen dioxide (NO2) levels at Appleton, Wisconsin is 7.565 ppb.
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