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)
44
Good
Champaign, Illinois
Last updated: ... (Local time)
Good
Fine
Moderate
Poor
Very poor
Hazardous
8.20 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
35.91 μg/m³
0
55
155
255
425
605+
18.43 ppb
0
55
71
86
201
201+
0.94 ppb
0
36
76
186
605
1005+
6.71 ppb
0
54
101
361
1250
2050+
0.13 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Champaign, Illinois
Champaign, Illinois
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AQI 26
Good
3.91μg/m³
PM2.5
17.33μg/m³
PM10
28.18ppb
O3
0.93ppb
SO2
2.17ppb
NO2
0.14ppm
CO
AQI 27
Good
5.10μg/m³
PM2.5
23.91μg/m³
PM10
26.32ppb
O3
0.92ppb
SO2
2.19ppb
NO2
0.15ppm
CO
AQI 27
Good
4.67μg/m³
PM2.5
19.09μg/m³
PM10
25.76ppb
O3
0.90ppb
SO2
2.15ppb
NO2
0.17ppm
CO
AQI 56
Moderate
12.03μg/m³
PM2.5
53.88μg/m³
PM10
35.53ppb
O3
0.19ppb
SO2
1.10ppb
NO2
0.18ppm
CO
AQI 64
Moderate
15.89μg/m³
PM2.5
70.97μg/m³
PM10
38.70ppb
O3
0.16ppb
SO2
0.89ppb
NO2
0.18ppm
CO
AQI 38
Good
7.21μg/m³
PM2.5
29.07μg/m³
PM10
27.74ppb
O3
0.87ppb
SO2
2.17ppb
NO2
0.22ppm
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 12:00:00 on 2025-07-19.
In the last 24 hours, the best air quality in Champaign, Illinois was observed at 08:00:00 on 2025-07-19.
As of now, the AQI in Champaign, Illinois is 27, indicating Good conditions.
Champaign, Illinois air has the highest levels of O3.
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 3.203 μg/m3.
The PM10 concentration in Champaign, Illinois is 14.037 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Champaign, Illinois is 0.146 ppm.
Currently, Champaign, Illinois has a sulfur dioxide (SO2) concentration of 0.906 ppb.
The current ozone (O3) level in Champaign, Illinois at the moment is 29.177 ppm.
Nitrogen dioxide (NO2) level in Champaign, Illinois at the moment is 2.041 ppb.
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