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)
38
Good
Champaign, Illinois
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
6.59 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
29.93 μg/m³
0
55
155
255
425
605+
25.41 ppb
0
55
71
86
201
201+
1.55 ppb
0
36
76
186
605
1005+
4.77 ppb
0
54
101
361
1250
2050+
0.11 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Champaign, Illinois
Champaign, Illinois
Scroll To Air Quality MapLoading...
AQI 38
Good
6.54μg/m³
PM2.5
29.49μg/m³
PM10
25.11ppb
O3
1.54ppb
SO2
4.77ppb
NO2
0.11ppm
CO
AQI 33
Good
6.20μg/m³
PM2.5
26.39μg/m³
PM10
23.74ppb
O3
1.58ppb
SO2
4.77ppb
NO2
0.12ppm
CO
AQI 33
Good
6.38μg/m³
PM2.5
26.53μg/m³
PM10
19.66ppb
O3
1.54ppb
SO2
4.82ppb
NO2
0.12ppm
CO
AQI 52
Moderate
10.45μg/m³
PM2.5
46.09μg/m³
PM10
15.96ppb
O3
0.74ppb
SO2
5.65ppb
NO2
0.19ppm
CO
AQI 44
Good
7.68μg/m³
PM2.5
33.91μg/m³
PM10
24.02ppb
O3
1.20ppb
SO2
4.06ppb
NO2
0.14ppm
CO
AQI 33
Good
6.05μg/m³
PM2.5
26.49μg/m³
PM10
24.91ppb
O3
1.30ppb
SO2
4.66ppb
NO2
0.14ppm
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 11:00:00 on 2026-09-06.
In the last 24 hours, the best air quality in Champaign, Illinois was observed at 07:00:00 on 2026-09-07.
As of now, the AQI in Champaign, Illinois is 38, indicating Good 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 6.591 μg/m3.
The PM10 concentration in Champaign, Illinois is 29.932 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Champaign, Illinois is 0.114 ppm.
Currently, Champaign, Illinois has a sulfur dioxide (SO2) concentration of 1.547 ppb.
The current ozone (O3) level in Champaign, Illinois at the moment is 25.405 ppm.
Nitrogen dioxide (NO2) level in Champaign, Illinois at the moment is 4.771 ppb.
All Rights Reserved © Ambee Inc. 2025