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

Good
Fine
Moderate
Poor
Very poor
Hazardous
6.62 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
29.43 μg/m³
0
55
155
255
425
605+
21.68 ppb
0
55
71
86
201
201+
0.47 ppb
0
36
76
186
605
1005+
6.90 ppb
0
54
101
361
1250
2050+
0.17 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Summit, Illinois
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AQI 33
Good
6.43μg/m³
PM2.5
28.57μg/m³
PM10
21.18ppb
O3
0.47ppb
SO2
6.67ppb
NO2
0.17ppm
CO
AQI 33
Good
6.42μg/m³
PM2.5
28.54μg/m³
PM10
20.45ppb
O3
0.47ppb
SO2
6.32ppb
NO2
0.17ppm
CO
AQI 38
Good
7.01μg/m³
PM2.5
31.15μg/m³
PM10
21.73ppb
O3
0.47ppb
SO2
8.02ppb
NO2
0.17ppm
CO
AQI 38
Good
6.86μg/m³
PM2.5
30.44μg/m³
PM10
21.13ppb
O3
0.46ppb
SO2
8.20ppb
NO2
0.17ppm
CO
AQI 38
Good
6.55μg/m³
PM2.5
29.12μg/m³
PM10
20.48ppb
O3
0.47ppb
SO2
6.74ppb
NO2
0.17ppm
CO
AQI 33
Good
6.33μg/m³
PM2.5
28.24μg/m³
PM10
18.26ppb
O3
0.48ppb
SO2
5.99ppb
NO2
0.17ppm
CO
Air quality data and pollutant measurements for Illinois, USA adhere to strict US EPA standards. The data is collected from multiple reliable sources, including satellites and ground-based monitoring stations. This data is further analyzed and enhanced using machine learning and advanced algorithms that factor in elements such as traffic and population density, ensuring accurate and reliable results.
Source: Ambee Data Sources
The air quality for Summit, Illinois is updated every hour.
The worst air quality in Summit, Illinois in the last 24 hours was observed at 04:00:00 on 2026-03-10.
In the last 24 hrs, the best air quality in Summit, Illinois was observed at 07:00:00 on 2026-03-11.
The current air quality in Summit, Illinois is 38, categorized as Good based on real-time data.
The most common pollutant in Summit, Illinois is PM2.5.
If the air quality in Summit, Illinois is poor, consider staying indoors and wearing a mask to protect yourself.
The current PM2.5 concentration at Summit, Illinois is 6.623 μg/m3.
The current PM10 concentration at Summit, Illinois is 29.428 μg/m3.
The current carbon monoxide (CO) concentration at Summit, Illinois is 0.167 ppm.
The current sulfur dioxide (SO2) concentration at Summit, Illinois is 0.469 ppb.
The current ozone (O3) concentration at Summit, Illinois is 21.68 ppm.
The current nitrogen dioxide (NO2) concentration at Summit, Illinois is 6.899 ppb.
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