Stay updated with real-time air quality in Greendale, 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)
60
Moderate
Greendale, Wisconsin
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
14.34 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
32.84 μg/m³
0
55
155
255
425
605+
19.98 ppb
0
55
71
86
201
201+
0.16 ppb
0
36
76
186
605
1005+
14.48 ppb
0
54
101
361
1250
2050+
0.20 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Greendale, Wisconsin
Greendale, Wisconsin
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AQI 62
Moderate
14.68μg/m³
PM2.5
38.38μg/m³
PM10
19.90ppb
O3
0.23ppb
SO2
13.91ppb
NO2
0.29ppm
CO
AQI 60
Moderate
14.43μg/m³
PM2.5
34.68μg/m³
PM10
19.82ppb
O3
0.24ppb
SO2
14.20ppb
NO2
0.29ppm
CO
AQI 62
Moderate
15.00μg/m³
PM2.5
51.07μg/m³
PM10
19.97ppb
O3
0.23ppb
SO2
10.11ppb
NO2
0.28ppm
CO
AQI 60
Moderate
14.13μg/m³
PM2.5
32.60μg/m³
PM10
20.81ppb
O3
0.25ppb
SO2
10.94ppb
NO2
0.27ppm
CO
AQI 60
Moderate
14.49μg/m³
PM2.5
40.86μg/m³
PM10
20.03ppb
O3
0.23ppb
SO2
12.78ppb
NO2
0.29ppm
CO
AQI 60
Moderate
14.24μg/m³
PM2.5
36.55μg/m³
PM10
19.95ppb
O3
0.24ppb
SO2
13.47ppb
NO2
0.29ppm
CO
Air quality data and pollutant measurements for Wisconsin, USA adhere to strict US EPA standards. The data is collected from multiple reliable sources, including satellites and ground-based monitoring stations. This data is further analyzed and enhanced using machine learning and advanced algorithms that factor in elements such as traffic and population density, ensuring accurate and reliable results.
Source: Ambee Data Sources
The air quality for Greendale, Wisconsin is updated every hour.
The worst air quality in Greendale, Wisconsin in the last 24 hours was observed at 09:00:00 on 2026-07-11.
In the last 24 hrs, the best air quality in Greendale, Wisconsin was observed at 06:00:00 on 2026-07-10.
The current air quality in Greendale, Wisconsin is 60, categorized as Moderate based on real-time data.
The most common pollutant in Greendale, Wisconsin is PM2.5.
If the air quality in Greendale, Wisconsin is poor, consider staying indoors and wearing a mask to protect yourself.
The current PM2.5 concentration at Greendale, Wisconsin is 14.336 μg/m3.
The current PM10 concentration at Greendale, Wisconsin is 32.844 μg/m3.
The current carbon monoxide (CO) concentration at Greendale, Wisconsin is 0.197 ppm.
The current sulfur dioxide (SO2) concentration at Greendale, Wisconsin is 0.163 ppb.
The current ozone (O3) concentration at Greendale, Wisconsin is 19.975 ppm.
The current nitrogen dioxide (NO2) concentration at Greendale, Wisconsin is 14.481 ppb.
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