Stay updated with real-time air quality in Champaign, Illinois 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
Champaign, Illinois
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
14.30 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
65.00 μg/m³
0
55
155
255
425
605+
15.94 ppb
0
55
71
86
201
201+
0.34 ppb
0
36
76
186
605
1005+
8.30 ppb
0
54
101
361
1250
2050+
0.14 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Champaign, Illinois
Champaign, Illinois
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AQI 56
Moderate
11.83μg/m³
PM2.5
52.68μg/m³
PM10
13.30ppb
O3
1.02ppb
SO2
7.55ppb
NO2
0.13ppm
CO
AQI 66
Moderate
17.13μg/m³
PM2.5
55.13μg/m³
PM10
13.11ppb
O3
1.02ppb
SO2
7.63ppb
NO2
0.13ppm
CO
AQI 58
Moderate
12.71μg/m³
PM2.5
49.91μg/m³
PM10
18.75ppb
O3
1.01ppb
SO2
10.56ppb
NO2
0.17ppm
CO
AQI 54
Moderate
11.39μg/m³
PM2.5
50.80μg/m³
PM10
14.89ppb
O3
0.82ppb
SO2
13.26ppb
NO2
0.30ppm
CO
AQI 66
Moderate
17.24μg/m³
PM2.5
76.74μg/m³
PM10
12.50ppb
O3
1.00ppb
SO2
8.41ppb
NO2
0.18ppm
CO
AQI 52
Moderate
10.14μg/m³
PM2.5
45.47μg/m³
PM10
15.87ppb
O3
1.56ppb
SO2
7.26ppb
NO2
0.24ppm
CO
Air quality and pollutant data for Illinois, 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 Champaign, Illinois is updated every hour for accuracy.
In the past 24 hours, the air quality in Champaign, Illinois was at its worst at 04:00:00 on 2025-12-06.
In the last 24 hours, the best air quality in Champaign, Illinois was observed at 09:00:00 on 2025-12-06.
As of now, the AQI in Champaign, Illinois is 58, indicating Moderate conditions.
Champaign, Illinois air has the highest levels of PM2.5.
Poor air quality in Champaign, Illinois means it's advisable to stay indoors and wear a mask for your protection.
PM2.5 levels in Champaign, Illinois are currently 12.605 μg/m3.
The PM10 concentration in Champaign, Illinois is 57.033 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Champaign, Illinois is 0.129 ppm.
Currently, Champaign, Illinois has a sulfur dioxide (SO2) concentration of 1.028 ppb.
The current ozone (O3) level in Champaign, Illinois at the moment is 18.375 ppm.
Nitrogen dioxide (NO2) level in Champaign, Illinois at the moment is 7.635 ppb.
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