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)
56
Moderate
Sussex, Wisconsin
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
11.89 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
42.46 μg/m³
0
55
155
255
425
605+
19.08 ppb
0
55
71
86
201
201+
0.34 ppb
0
36
76
186
605
1005+
6.69 ppb
0
54
101
361
1250
2050+
0.29 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Sussex, Wisconsin
Sussex, Wisconsin
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AQI 60
Moderate
14.38μg/m³
PM2.5
24.79μg/m³
PM10
15.30ppb
O3
0.33ppb
SO2
6.85ppb
NO2
0.29ppm
CO
AQI 58
Moderate
12.97μg/m³
PM2.5
49.56μg/m³
PM10
20.89ppb
O3
0.33ppb
SO2
6.67ppb
NO2
0.29ppm
CO
AQI 58
Moderate
12.82μg/m³
PM2.5
49.41μg/m³
PM10
14.76ppb
O3
0.32ppb
SO2
6.72ppb
NO2
0.29ppm
CO
AQI 56
Moderate
11.88μg/m³
PM2.5
40.57μg/m³
PM10
18.05ppb
O3
0.35ppb
SO2
6.64ppb
NO2
0.29ppm
CO
AQI 56
Moderate
11.67μg/m³
PM2.5
41.75μg/m³
PM10
18.95ppb
O3
0.35ppb
SO2
6.64ppb
NO2
0.29ppm
CO
AQI 58
Moderate
12.83μg/m³
PM2.5
49.61μg/m³
PM10
19.08ppb
O3
0.33ppb
SO2
6.66ppb
NO2
0.29ppm
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 10:00:00 on 2026-08-13.
The best air quality in Sussex, Wisconsin was recorded at 08:00:00 on 2026-08-12.
The real-time air quality index in Sussex, Wisconsin is 56, currently categorized as Moderate.
The most common pollutant in Sussex, Wisconsin is PM2.5.
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 11.889 μg/m3.
The current PM10 levels in Sussex, Wisconsin are 42.464 μg/m3.
The current carbon monoxide (CO) level in Sussex, Wisconsin is 0.29 ppm.
The current sulfur dioxide (SO2) levels in Sussex, Wisconsin are 0.343 ppb.
The current ozone (O3) levels at Sussex, Wisconsin is 19.08 ppm.
The current nitrogen dioxide (NO2) levels at Sussex, Wisconsin is 6.687 ppb.
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