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)
19
Good
Beloit, Wisconsin
Last updated: ... (Local time)
Good
Fine
Moderate
Poor
Very poor
Hazardous
1.34 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
6.38 μg/m³
0
55
155
255
425
605+
20.90 ppb
0
55
71
86
201
201+
0.64 ppb
0
36
76
186
605
1005+
1.95 ppb
0
54
101
361
1250
2050+
0.13 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Moderate
Beloit, Wisconsin
Beloit, Wisconsin
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AQI 19
Good
1.91μg/m³
PM2.5
8.40μg/m³
PM10
20.37ppb
O3
0.65ppb
SO2
1.85ppb
NO2
0.10ppm
CO
AQI 19
Good
1.89μg/m³
PM2.5
8.42μg/m³
PM10
20.05ppb
O3
0.67ppb
SO2
1.85ppb
NO2
0.10ppm
CO
AQI 21
Good
1.21μg/m³
PM2.5
3.59μg/m³
PM10
22.83ppb
O3
0.67ppb
SO2
1.88ppb
NO2
0.10ppm
CO
AQI 19
Good
1.89μg/m³
PM2.5
8.41μg/m³
PM10
20.01ppb
O3
0.68ppb
SO2
1.85ppb
NO2
0.10ppm
CO
AQI 19
Good
2.10μg/m³
PM2.5
9.00μg/m³
PM10
21.19ppb
O3
0.53ppb
SO2
1.84ppb
NO2
0.10ppm
CO
AQI 21
Good
1.79μg/m³
PM2.5
5.21μg/m³
PM10
23.22ppb
O3
0.69ppb
SO2
1.89ppb
NO2
0.10ppm
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 03:00:00 on 2025-10-22.
The best air quality in Beloit, Wisconsin was recorded at 02:00:00 on 2025-10-21.
The real-time air quality index in Beloit, Wisconsin is 19, currently categorized as Good.
The most common pollutant in Beloit, Wisconsin is O3.
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 1.341 μg/m3.
The current PM10 levels in Beloit, Wisconsin are 6.38 μg/m3.
The current carbon monoxide (CO) level in Beloit, Wisconsin is 0.132 ppm.
The current sulfur dioxide (SO2) levels in Beloit, Wisconsin are 0.636 ppb.
The current ozone (O3) levels at Beloit, Wisconsin is 20.899 ppm.
The current nitrogen dioxide (NO2) levels at Beloit, Wisconsin is 1.951 ppb.
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