Stay updated with real-time air quality in Richfield, 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)
37
Good
Richfield, Wisconsin
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
5.79 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
20.47 μg/m³
0
55
155
255
425
605+
39.83 ppb
0
55
71
86
201
201+
0.58 ppb
0
36
76
186
605
1005+
6.30 ppb
0
54
101
361
1250
2050+
0.29 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Richfield, Wisconsin
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AQI 33
Good
5.29μg/m³
PM2.5
14.28μg/m³
PM10
36.45ppb
O3
0.71ppb
SO2
4.53ppb
NO2
0.21ppm
CO
AQI 31
Good
5.45μg/m³
PM2.5
18.23μg/m³
PM10
33.65ppb
O3
0.72ppb
SO2
7.10ppb
NO2
0.22ppm
CO
AQI 31
Good
5.40μg/m³
PM2.5
20.41μg/m³
PM10
34.34ppb
O3
0.68ppb
SO2
3.97ppb
NO2
0.18ppm
CO
AQI 31
Good
5.49μg/m³
PM2.5
18.29μg/m³
PM10
33.51ppb
O3
0.73ppb
SO2
7.15ppb
NO2
0.23ppm
CO
AQI 33
Good
4.93μg/m³
PM2.5
14.26μg/m³
PM10
35.80ppb
O3
0.70ppb
SO2
3.90ppb
NO2
0.20ppm
CO
AQI 31
Good
5.36μg/m³
PM2.5
20.89μg/m³
PM10
34.23ppb
O3
0.74ppb
SO2
5.98ppb
NO2
0.23ppm
CO
Air quality and pollutant data for Wisconsin, USA are sourced from ground-based monitors and satellites, adhering to US EPA standards. Machine learning and advanced algorithms enhance the data by incorporating local variables like traffic and population density, ensuring high accuracy and dependability.
Source: Ambee Data Sources
The air quality information for Richfield, Wisconsin is updated every hour for accuracy.
In the past 24 hours, the air quality in Richfield, Wisconsin was at its worst at 11:00:00 on 2026-03-08.
In the last 24 hours, the best air quality in Richfield, Wisconsin was observed at 02:00:00 on 2026-03-09.
As of now, the AQI in Richfield, Wisconsin is 37, indicating Good conditions.
Richfield, Wisconsin air has the highest levels of O3.
Poor air quality in Richfield, Wisconsin means it's advisable to stay indoors and wear a mask for your protection.
PM2.5 levels in Richfield, Wisconsin are currently 5.789 μg/m3.
The PM10 concentration in Richfield, Wisconsin is 20.466 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Richfield, Wisconsin is 0.294 ppm.
Currently, Richfield, Wisconsin has a sulfur dioxide (SO2) concentration of 0.583 ppb.
The current ozone (O3) level in Richfield, Wisconsin at the moment is 39.832 ppm.
Nitrogen dioxide (NO2) level in Richfield, Wisconsin at the moment is 6.302 ppb.
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