Stay updated with real-time air quality in Green Bay, 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)
30
Good
Green Bay, Wisconsin
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
2.49 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
9.98 μg/m³
0
55
155
255
425
605+
31.57 ppb
0
55
71
86
201
201+
0.29 ppb
0
36
76
186
605
1005+
8.67 ppb
0
54
101
361
1250
2050+
0.18 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Green Bay, Wisconsin
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AQI 35
Good
2.58μg/m³
PM2.5
10.86μg/m³
PM10
38.25ppb
O3
0.32ppb
SO2
3.61ppb
NO2
0.15ppm
CO
AQI 35
Good
2.56μg/m³
PM2.5
10.73μg/m³
PM10
38.25ppb
O3
0.32ppb
SO2
3.62ppb
NO2
0.15ppm
CO
AQI 35
Good
2.54μg/m³
PM2.5
10.63μg/m³
PM10
38.25ppb
O3
0.32ppb
SO2
3.62ppb
NO2
0.15ppm
CO
AQI 35
Good
2.52μg/m³
PM2.5
10.45μg/m³
PM10
38.25ppb
O3
0.32ppb
SO2
3.63ppb
NO2
0.15ppm
CO
AQI 35
Good
2.50μg/m³
PM2.5
10.35μg/m³
PM10
38.25ppb
O3
0.32ppb
SO2
3.63ppb
NO2
0.15ppm
CO
AQI 35
Good
2.18μg/m³
PM2.5
9.67μg/m³
PM10
38.19ppb
O3
0.32ppb
SO2
3.64ppb
NO2
0.15ppm
CO
The air quality data for Wisconsin, USA is gathered from reliable sources such as satellites and monitoring stations, adhering to US EPA guidelines. With the help of advanced algorithms and machine learning, factors like traffic and population density are analyzed to deliver accurate and dependable results.
Source: Ambee Data Sources
Air quality updates for Green Bay, Wisconsin are available every hour.
Green Bay, Wisconsin experienced its worst air quality at 02:00:00, 2026-03-14.
The best air quality in Green Bay, Wisconsin was observed at 03:00:00 on 2026-03-13.
The air quality in Green Bay, Wisconsin right now is Good, with an AQI of 35.
In Green Bay, Wisconsin, O3 is the most frequently found pollutant.
When air quality in Green Bay, Wisconsin is compromised, staying indoors and wearing a mask can reduce health risks.
Green Bay, Wisconsin currently has a PM2.5 concentration of 2.593 μg/m3.
Green Bay, Wisconsin currently has a PM10 concentration of 10.963 μg/m3.
The current carbon monoxide (CO) level in Green Bay, Wisconsin is 0.153 ppm.
The current sulfur dioxide (SO2) concentration in Green Bay, Wisconsin is 0.337 ppb.
Green Bay, Wisconsin currently has an ozone (O3) concentration of 37.525 ppm.
The current level of nitrogen dioxide (NO2) in Green Bay, Wisconsin is 3.607 ppb.
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