Stay updated with real-time air quality in Beloit, 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)
27
Good
Beloit, Wisconsin
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
4.82 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
19.74 μg/m³
0
55
155
255
425
605+
16.28 ppb
0
55
71
86
201
201+
0.51 ppb
0
36
76
186
605
1005+
6.16 ppb
0
54
101
361
1250
2050+
0.15 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Beloit, Wisconsin
Beloit, Wisconsin
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AQI 27
Good
4.93μg/m³
PM2.5
24.20μg/m³
PM10
20.22ppb
O3
0.48ppb
SO2
6.01ppb
NO2
0.15ppm
CO
AQI 27
Good
5.41μg/m³
PM2.5
24.11μg/m³
PM10
20.95ppb
O3
0.46ppb
SO2
6.01ppb
NO2
0.15ppm
CO
AQI 21
Good
3.33μg/m³
PM2.5
20.19μg/m³
PM10
23.23ppb
O3
0.49ppb
SO2
6.16ppb
NO2
0.14ppm
CO
AQI 27
Good
5.42μg/m³
PM2.5
24.09μg/m³
PM10
20.99ppb
O3
0.46ppb
SO2
6.02ppb
NO2
0.15ppm
CO
AQI 33
Good
5.80μg/m³
PM2.5
24.99μg/m³
PM10
20.24ppb
O3
0.47ppb
SO2
5.63ppb
NO2
0.15ppm
CO
AQI 27
Good
5.17μg/m³
PM2.5
20.79μg/m³
PM10
23.09ppb
O3
0.47ppb
SO2
5.97ppb
NO2
0.15ppm
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 Beloit, Wisconsin is updated on an hourly basis.
The worst air quality in Beloit, Wisconsin was recorded at 11:00:00 on 2026-09-09.
The best air quality in Beloit, Wisconsin was recorded at 04:00:00 on 2026-09-10.
The real-time air quality index in Beloit, Wisconsin is 27, currently categorized as Good.
The most common pollutant in Beloit, Wisconsin is PM2.5.
If the air quality in Beloit, Wisconsin is poor, limit outdoor activities and use a mask to safeguard your health.
The measured PM2.5 levels in Beloit, Wisconsin at present are 4.823 μg/m3.
The current PM10 levels in Beloit, Wisconsin are 19.742 μg/m3.
The current carbon monoxide (CO) level in Beloit, Wisconsin is 0.147 ppm.
The current sulfur dioxide (SO2) levels in Beloit, Wisconsin are 0.505 ppb.
The current ozone (O3) levels at Beloit, Wisconsin is 16.28 ppm.
The current nitrogen dioxide (NO2) levels at Beloit, Wisconsin is 6.16 ppb.
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