Stay updated with real-time air quality in Janesville, 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)
90
Moderate
Janesville, Wisconsin
Last updated: ... (Local time)
Good
Fine
Moderate
Poor
Very poor
Hazardous
29.70 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
117.72 μg/m³
0
55
155
255
425
605+
43.16 ppb
0
55
71
86
201
201+
1.02 ppb
0
36
76
186
605
1005+
2.26 ppb
0
54
101
361
1250
2050+
0.18 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Janesville, Wisconsin
Janesville, Wisconsin
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AQI 69
Moderate
18.96μg/m³
PM2.5
65.23μg/m³
PM10
26.98ppb
O3
0.47ppb
SO2
9.42ppb
NO2
0.13ppm
CO
AQI 56
Moderate
11.96μg/m³
PM2.5
53.63μg/m³
PM10
25.77ppb
O3
0.45ppb
SO2
7.83ppb
NO2
0.12ppm
CO
AQI 75
Moderate
22.30μg/m³
PM2.5
75.54μg/m³
PM10
27.50ppb
O3
0.46ppb
SO2
9.86ppb
NO2
0.13ppm
CO
AQI 67
Moderate
17.62μg/m³
PM2.5
58.00μg/m³
PM10
24.78ppb
O3
0.48ppb
SO2
7.39ppb
NO2
0.13ppm
CO
AQI 56
Moderate
11.93μg/m³
PM2.5
53.30μg/m³
PM10
21.07ppb
O3
0.45ppb
SO2
8.40ppb
NO2
0.12ppm
CO
AQI 79
Moderate
23.99μg/m³
PM2.5
74.12μg/m³
PM10
28.82ppb
O3
0.47ppb
SO2
10.04ppb
NO2
0.13ppm
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 Janesville, Wisconsin are available every hour.
Janesville, Wisconsin experienced its worst air quality at 10:00:00, 2025-07-21.
The best air quality in Janesville, Wisconsin was observed at 07:00:00 on 2025-07-22.
The air quality in Janesville, Wisconsin right now is Moderate, with an AQI of 67.
In Janesville, Wisconsin, PM2.5 is the most frequently found pollutant.
When air quality in Janesville, Wisconsin is compromised, staying indoors and wearing a mask can reduce health risks.
Janesville, Wisconsin currently has a PM2.5 concentration of 17.727 μg/m3.
Janesville, Wisconsin currently has a PM10 concentration of 33.852 μg/m3.
The current carbon monoxide (CO) level in Janesville, Wisconsin is 0.115 ppm.
The current sulfur dioxide (SO2) concentration in Janesville, Wisconsin is 0.427 ppb.
Janesville, Wisconsin currently has an ozone (O3) concentration of 20.591 ppm.
The current level of nitrogen dioxide (NO2) in Janesville, Wisconsin is 8.003 ppb.
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