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)
39
Good
Sussex, Wisconsin
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
4.78 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
16.24 μg/m³
0
55
155
255
425
605+
42.16 ppb
0
55
71
86
201
201+
1.38 ppb
0
36
76
186
605
1005+
4.41 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 38
Good
4.82μg/m³
PM2.5
13.37μg/m³
PM10
41.06ppb
O3
1.43ppb
SO2
4.34ppb
NO2
0.11ppm
CO
AQI 40
Good
4.82μg/m³
PM2.5
22.98μg/m³
PM10
43.29ppb
O3
1.37ppb
SO2
4.39ppb
NO2
0.11ppm
CO
AQI 40
Good
4.75μg/m³
PM2.5
25.48μg/m³
PM10
42.98ppb
O3
1.43ppb
SO2
4.32ppb
NO2
0.11ppm
CO
AQI 40
Good
5.59μg/m³
PM2.5
25.84μg/m³
PM10
43.18ppb
O3
1.38ppb
SO2
4.43ppb
NO2
0.12ppm
CO
AQI 40
Good
4.73μg/m³
PM2.5
24.69μg/m³
PM10
42.69ppb
O3
1.36ppb
SO2
4.44ppb
NO2
0.11ppm
CO
AQI 40
Good
4.78μg/m³
PM2.5
20.44μg/m³
PM10
42.78ppb
O3
1.35ppb
SO2
4.42ppb
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 01:00:00 on 2026-07-23.
The real-time air quality index in Sussex, Wisconsin is 39, 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 4.781 μg/m3.
The current PM10 levels in Sussex, Wisconsin are 16.238 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 1.384 ppb.
The current ozone (O3) levels at Sussex, Wisconsin is 42.158 ppm.
The current nitrogen dioxide (NO2) levels at Sussex, Wisconsin is 4.409 ppb.
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