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)
28
Good
Glen Ellyn, Illinois
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
3.07 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
12.58 μg/m³
0
55
155
255
425
605+
29.98 ppb
0
55
71
86
201
201+
0.32 ppb
0
36
76
186
605
1005+
2.52 ppb
0
54
101
361
1250
2050+
0.18 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 29
Good
3.03μg/m³
PM2.5
12.44μg/m³
PM10
30.77ppb
O3
0.32ppb
SO2
2.48ppb
NO2
0.17ppm
CO
AQI 30
Good
3.10μg/m³
PM2.5
12.74μg/m³
PM10
31.86ppb
O3
0.32ppb
SO2
2.52ppb
NO2
0.17ppm
CO
AQI 27
Good
3.17μg/m³
PM2.5
13.13μg/m³
PM10
29.42ppb
O3
0.32ppb
SO2
2.63ppb
NO2
0.18ppm
CO
AQI 26
Good
3.29μg/m³
PM2.5
13.81μg/m³
PM10
28.30ppb
O3
0.31ppb
SO2
2.76ppb
NO2
0.18ppm
CO
AQI 28
Good
3.08μg/m³
PM2.5
12.87μg/m³
PM10
30.13ppb
O3
0.32ppb
SO2
2.53ppb
NO2
0.17ppm
CO
AQI 29
Good
3.00μg/m³
PM2.5
12.33μg/m³
PM10
31.07ppb
O3
0.32ppb
SO2
2.48ppb
NO2
0.17ppm
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 09:00:00 on 2026-06-13.
The best air quality in Glen Ellyn, Illinois was recorded at 10:00:00 on 2026-06-14.
The real-time air quality index in Glen Ellyn, Illinois is 28, currently categorized as Good.
The most common pollutant in Glen Ellyn, Illinois is O3.
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 3.066 μg/m3.
The current PM10 levels in Glen Ellyn, Illinois are 12.576 μg/m3.
The current carbon monoxide (CO) level in Glen Ellyn, Illinois is 0.176 ppm.
The current sulfur dioxide (SO2) levels in Glen Ellyn, Illinois are 0.317 ppb.
The current ozone (O3) levels at Glen Ellyn, Illinois is 29.982 ppm.
The current nitrogen dioxide (NO2) levels at Glen Ellyn, Illinois is 2.524 ppb.
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