Stay updated with real-time air quality in Sussex, 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)
40
Good
Sussex, Wisconsin
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
4.85 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
17.07 μg/m³
0
55
155
255
425
605+
42.90 ppb
0
55
71
86
201
201+
0.75 ppb
0
36
76
186
605
1005+
4.54 ppb
0
54
101
361
1250
2050+
0.11 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Sussex, Wisconsin
Sussex, Wisconsin
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AQI 39
Good
4.91μg/m³
PM2.5
13.27μg/m³
PM10
41.98ppb
O3
0.85ppb
SO2
4.47ppb
NO2
0.11ppm
CO
AQI 38
Good
4.83μg/m³
PM2.5
20.30μg/m³
PM10
41.39ppb
O3
0.80ppb
SO2
4.52ppb
NO2
0.11ppm
CO
AQI 38
Good
4.86μg/m³
PM2.5
16.55μg/m³
PM10
41.36ppb
O3
0.90ppb
SO2
4.38ppb
NO2
0.11ppm
CO
AQI 40
Good
4.85μg/m³
PM2.5
21.74μg/m³
PM10
43.46ppb
O3
0.71ppb
SO2
4.56ppb
NO2
0.12ppm
CO
AQI 38
Good
4.81μg/m³
PM2.5
20.35μg/m³
PM10
41.11ppb
O3
0.71ppb
SO2
4.58ppb
NO2
0.11ppm
CO
AQI 39
Good
4.86μg/m³
PM2.5
20.66μg/m³
PM10
41.63ppb
O3
0.78ppb
SO2
4.55ppb
NO2
0.11ppm
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 Sussex, Wisconsin is updated on an hourly basis.
The worst air quality in Sussex, Wisconsin was recorded at 03:00:00 on 2026-07-23.
The best air quality in Sussex, Wisconsin was recorded at 05:00:00 on 2026-07-23.
The real-time air quality index in Sussex, Wisconsin is 40, currently categorized as Good.
The most common pollutant in Sussex, Wisconsin is O3.
If the air quality in Sussex, Wisconsin is poor, limit outdoor activities and use a mask to safeguard your health.
The measured PM2.5 levels in Sussex, Wisconsin at present are 4.852 μg/m3.
The current PM10 levels in Sussex, Wisconsin are 17.07 μg/m3.
The current carbon monoxide (CO) level in Sussex, Wisconsin is 0.113 ppm.
The current sulfur dioxide (SO2) levels in Sussex, Wisconsin are 0.751 ppb.
The current ozone (O3) levels at Sussex, Wisconsin is 42.9 ppm.
The current nitrogen dioxide (NO2) levels at Sussex, Wisconsin is 4.541 ppb.
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