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)
21
Good
Danville, Illinois
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
3.38 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
15.00 μg/m³
0
55
155
255
425
605+
23.07 ppb
0
55
71
86
201
201+
0.22 ppb
0
36
76
186
605
1005+
0.92 ppb
0
54
101
361
1250
2050+
0.17 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Danville, Illinois
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AQI 22
Good
3.66μg/m³
PM2.5
18.11μg/m³
PM10
24.09ppb
O3
2.12ppb
SO2
6.89ppb
NO2
0.11ppm
CO
AQI 26
Good
3.51μg/m³
PM2.5
16.00μg/m³
PM10
28.11ppb
O3
1.96ppb
SO2
7.27ppb
NO2
0.10ppm
CO
AQI 26
Good
3.50μg/m³
PM2.5
16.00μg/m³
PM10
27.96ppb
O3
1.96ppb
SO2
7.28ppb
NO2
0.10ppm
CO
AQI 27
Good
3.40μg/m³
PM2.5
17.33μg/m³
PM10
29.48ppb
O3
2.01ppb
SO2
6.02ppb
NO2
0.25ppm
CO
AQI 24
Good
3.61μg/m³
PM2.5
17.17μg/m³
PM10
26.30ppb
O3
1.99ppb
SO2
7.32ppb
NO2
0.10ppm
CO
AQI 27
Good
2.37μg/m³
PM2.5
10.63μg/m³
PM10
29.20ppb
O3
2.31ppb
SO2
6.43ppb
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 Danville, Illinois is updated every hour for accuracy.
In the past 24 hours, the air quality in Danville, Illinois was at its worst at 09:00:00 on 2026-01-22.
In the last 24 hours, the best air quality in Danville, Illinois was observed at 02:00:00 on 2026-01-23.
As of now, the AQI in Danville, Illinois is 24, 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 2.72 μg/m3.
The PM10 concentration in Danville, Illinois is 11 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Danville, Illinois is 0.164 ppm.
Currently, Danville, Illinois has a sulfur dioxide (SO2) concentration of 0.196 ppb.
The current ozone (O3) level in Danville, Illinois at the moment is 26.361 ppm.
Nitrogen dioxide (NO2) level in Danville, Illinois at the moment is 0.742 ppb.
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