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

Good
Fine
Moderate
Poor
Very poor
Hazardous
5.72 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
25.00 μg/m³
0
55
155
255
425
605+
40.84 ppb
0
55
71
86
201
201+
0.40 ppb
0
36
76
186
605
1005+
3.02 ppb
0
54
101
361
1250
2050+
0.17 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Mundelein, Illinois
Mundelein, Illinois
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AQI 40
Good
5.13μg/m³
PM2.5
20.44μg/m³
PM10
42.60ppb
O3
0.41ppb
SO2
3.23ppb
NO2
0.17ppm
CO
AQI 42
Good
5.57μg/m³
PM2.5
25.19μg/m³
PM10
44.62ppb
O3
0.41ppb
SO2
2.82ppb
NO2
0.17ppm
CO
AQI 34
Good
5.87μg/m³
PM2.5
29.55μg/m³
PM10
37.23ppb
O3
0.40ppb
SO2
2.76ppb
NO2
0.17ppm
CO
AQI 41
Good
5.87μg/m³
PM2.5
29.67μg/m³
PM10
43.94ppb
O3
0.40ppb
SO2
3.60ppb
NO2
0.16ppm
CO
AQI 36
Good
5.90μg/m³
PM2.5
25.07μg/m³
PM10
39.16ppb
O3
0.37ppb
SO2
2.57ppb
NO2
0.17ppm
CO
AQI 39
Good
5.87μg/m³
PM2.5
29.59μg/m³
PM10
42.15ppb
O3
0.40ppb
SO2
3.44ppb
NO2
0.16ppm
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 Mundelein, Illinois is updated every hour.
The worst air quality in Mundelein, Illinois in the last 24 hours was observed at 03:00:00 on 2026-06-09.
In the last 24 hrs, the best air quality in Mundelein, Illinois was observed at 05:00:00 on 2026-06-09.
The current air quality in Mundelein, Illinois is 38, categorized as Good based on real-time data.
The most common pollutant in Mundelein, Illinois is O3.
If the air quality in Mundelein, Illinois is poor, consider staying indoors and wearing a mask to protect yourself.
The current PM2.5 concentration at Mundelein, Illinois is 5.719 μg/m3.
The current PM10 concentration at Mundelein, Illinois is 25.001 μg/m3.
The current carbon monoxide (CO) concentration at Mundelein, Illinois is 0.165 ppm.
The current sulfur dioxide (SO2) concentration at Mundelein, Illinois is 0.404 ppb.
The current ozone (O3) concentration at Mundelein, Illinois is 40.845 ppm.
The current nitrogen dioxide (NO2) concentration at Mundelein, Illinois is 3.023 ppb.
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