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)
67
Moderate
Glen Ellyn, Illinois
Last updated: ... (Local time)
Good
Fine
Moderate
Poor
Very poor
Hazardous
17.79 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
77.91 μg/m³
0
55
155
255
425
605+
37.32 ppb
0
55
71
86
201
201+
2.60 ppb
0
36
76
186
605
1005+
4.97 ppb
0
54
101
361
1250
2050+
0.38 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 71
Moderate
19.62μg/m³
PM2.5
86.46μg/m³
PM10
40.04ppb
O3
2.94ppb
SO2
5.34ppb
NO2
0.43ppm
CO
AQI 67
Moderate
18.32μg/m³
PM2.5
71.44μg/m³
PM10
40.88ppb
O3
2.74ppb
SO2
5.28ppb
NO2
0.43ppm
CO
AQI 69
Moderate
19.07μg/m³
PM2.5
83.86μg/m³
PM10
38.97ppb
O3
3.05ppb
SO2
5.33ppb
NO2
0.43ppm
CO
AQI 69
Moderate
18.78μg/m³
PM2.5
83.10μg/m³
PM10
38.27ppb
O3
3.17ppb
SO2
5.32ppb
NO2
0.42ppm
CO
AQI 71
Moderate
19.83μg/m³
PM2.5
87.71μg/m³
PM10
40.31ppb
O3
2.88ppb
SO2
5.33ppb
NO2
0.43ppm
CO
AQI 71
Moderate
19.84μg/m³
PM2.5
87.55μg/m³
PM10
40.33ppb
O3
2.93ppb
SO2
5.35ppb
NO2
0.43ppm
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 02:00:00 on 2025-07-22.
The best air quality in Glen Ellyn, Illinois was recorded at 07:00:00 on 2025-07-23.
The real-time air quality index in Glen Ellyn, Illinois is 69, currently categorized as Moderate.
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 19.389 μg/m3.
The current PM10 levels in Glen Ellyn, Illinois are 85.357 μg/m3.
The current carbon monoxide (CO) level in Glen Ellyn, Illinois is 0.429 ppm.
The current sulfur dioxide (SO2) levels in Glen Ellyn, Illinois are 2.969 ppb.
The current ozone (O3) levels at Glen Ellyn, Illinois is 39.36 ppm.
The current nitrogen dioxide (NO2) levels at Glen Ellyn, Illinois is 5.331 ppb.
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