Stay updated with real-time air quality in Danville, 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)
40
Good
Danville, Illinois
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
0.88 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
3.12 μg/m³
0
55
155
255
425
605+
42.85 ppb
0
55
71
86
201
201+
0.17 ppb
0
36
76
186
605
1005+
0.59 ppb
0
54
101
361
1250
2050+
0.12 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Danville, Illinois
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AQI 39
Good
4.54μg/m³
PM2.5
23.39μg/m³
PM10
42.02ppb
O3
0.95ppb
SO2
3.56ppb
NO2
0.18ppm
CO
AQI 39
Good
4.14μg/m³
PM2.5
18.48μg/m³
PM10
42.13ppb
O3
1.11ppb
SO2
3.82ppb
NO2
0.19ppm
CO
AQI 39
Good
4.10μg/m³
PM2.5
18.05μg/m³
PM10
42.16ppb
O3
1.13ppb
SO2
3.85ppb
NO2
0.19ppm
CO
AQI 40
Good
5.07μg/m³
PM2.5
20.20μg/m³
PM10
43.01ppb
O3
1.04ppb
SO2
6.75ppb
NO2
0.25ppm
CO
AQI 41
Good
4.47μg/m³
PM2.5
19.52μg/m³
PM10
43.67ppb
O3
0.93ppb
SO2
3.44ppb
NO2
0.18ppm
CO
AQI 40
Good
6.97μg/m³
PM2.5
31.43μg/m³
PM10
42.57ppb
O3
1.06ppb
SO2
6.66ppb
NO2
0.25ppm
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 Danville, Illinois is updated every hour for accuracy.
In the past 24 hours, the air quality in Danville, Illinois was at its worst at 10:00:00 on 2026-07-23.
In the last 24 hours, the best air quality in Danville, Illinois was observed at 11:00:00 on 2026-07-23.
As of now, the AQI in Danville, Illinois is 40, indicating Good conditions.
Danville, Illinois air has the highest levels of O3.
Poor air quality in Danville, Illinois means it's advisable to stay indoors and wear a mask for your protection.
PM2.5 levels in Danville, Illinois are currently 0.876 μg/m3.
The PM10 concentration in Danville, Illinois is 3.124 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Danville, Illinois is 0.123 ppm.
Currently, Danville, Illinois has a sulfur dioxide (SO2) concentration of 0.171 ppb.
The current ozone (O3) level in Danville, Illinois at the moment is 42.854 ppm.
Nitrogen dioxide (NO2) level in Danville, Illinois at the moment is 0.595 ppb.
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