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

Good
Fine
Moderate
Poor
Very poor
Hazardous
7.22 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
30.04 μg/m³
0
55
155
255
425
605+
15.96 ppb
0
55
71
86
201
201+
1.09 ppb
0
36
76
186
605
1005+
19.14 ppb
0
54
101
361
1250
2050+
0.24 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Glen Ellyn, Illinois
Glen Ellyn, Illinois
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AQI 44
Good
7.62μg/m³
PM2.5
35.50μg/m³
PM10
23.28ppb
O3
0.81ppb
SO2
13.13ppb
NO2
0.29ppm
CO
AQI 44
Good
8.33μg/m³
PM2.5
35.62μg/m³
PM10
22.33ppb
O3
0.81ppb
SO2
12.94ppb
NO2
0.29ppm
CO
AQI 44
Good
8.31μg/m³
PM2.5
35.47μg/m³
PM10
21.97ppb
O3
0.80ppb
SO2
12.94ppb
NO2
0.29ppm
CO
AQI 44
Good
8.10μg/m³
PM2.5
36.42μg/m³
PM10
20.31ppb
O3
0.80ppb
SO2
12.88ppb
NO2
0.30ppm
CO
AQI 38
Good
7.46μg/m³
PM2.5
35.53μg/m³
PM10
23.22ppb
O3
0.82ppb
SO2
12.33ppb
NO2
0.29ppm
CO
AQI 33
Good
6.41μg/m³
PM2.5
28.82μg/m³
PM10
22.54ppb
O3
0.81ppb
SO2
12.51ppb
NO2
0.28ppm
CO
Air quality measurements for Illinois, USA meet strict US EPA standards. These measurements are collected from reliable sources, including satellites and ground-based monitoring systems. Advanced algorithms and machine learning techniques are applied to the data, factoring in variables such as traffic and population density, to ensure precision and reliability.
Source: Ambee Data Sources
Air quality data for Glen Ellyn, Illinois is updated on an hourly basis.
The worst air quality in Glen Ellyn, Illinois was recorded at 07:00:00 on 2026-01-23.
The best air quality in Glen Ellyn, Illinois was recorded at 08:00:00 on 2026-01-23.
The real-time air quality index in Glen Ellyn, Illinois is 38, currently categorized as Good.
The most common pollutant in Glen Ellyn, Illinois is PM2.5.
If the air quality in Glen Ellyn, Illinois is poor, limit outdoor activities and use a mask to safeguard your health.
The measured PM2.5 levels in Glen Ellyn, Illinois at present are 7.472 μg/m3.
The current PM10 levels in Glen Ellyn, Illinois are 37.843 μg/m3.
The current carbon monoxide (CO) level in Glen Ellyn, Illinois is 0.226 ppm.
The current sulfur dioxide (SO2) levels in Glen Ellyn, Illinois are 1.279 ppb.
The current ozone (O3) levels at Glen Ellyn, Illinois is 17.62 ppm.
The current nitrogen dioxide (NO2) levels at Glen Ellyn, Illinois is 17.255 ppb.
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