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)
27
Good
Mundelein, Illinois
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
4.89 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
22.10 μg/m³
0
55
155
255
425
605+
25.23 ppb
0
55
71
86
201
201+
1.28 ppb
0
36
76
186
605
1005+
10.51 ppb
0
54
101
361
1250
2050+
0.33 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Mundelein, Illinois
Mundelein, Illinois
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AQI 33
Good
6.03μg/m³
PM2.5
25.15μg/m³
PM10
23.37ppb
O3
1.03ppb
SO2
11.75ppb
NO2
0.29ppm
CO
AQI 33
Good
5.95μg/m³
PM2.5
24.83μg/m³
PM10
23.16ppb
O3
0.68ppb
SO2
9.20ppb
NO2
0.30ppm
CO
AQI 27
Good
5.40μg/m³
PM2.5
21.23μg/m³
PM10
23.78ppb
O3
0.70ppb
SO2
12.51ppb
NO2
0.30ppm
CO
AQI 33
Good
5.70μg/m³
PM2.5
21.20μg/m³
PM10
24.52ppb
O3
1.02ppb
SO2
13.94ppb
NO2
0.28ppm
CO
AQI 33
Good
5.88μg/m³
PM2.5
24.77μg/m³
PM10
25.30ppb
O3
0.71ppb
SO2
13.33ppb
NO2
0.31ppm
CO
AQI 33
Good
5.55μg/m³
PM2.5
21.51μg/m³
PM10
24.05ppb
O3
1.00ppb
SO2
12.02ppb
NO2
0.29ppm
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 06:00:00 on 2026-01-24.
In the last 24 hrs, the best air quality in Mundelein, Illinois was observed at 09:00:00 on 2026-01-24.
The current air quality in Mundelein, Illinois is 27, categorized as Good based on real-time data.
The most common pollutant in Mundelein, Illinois is PM2.5.
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 4.886 μg/m3.
The current PM10 concentration at Mundelein, Illinois is 22.101 μg/m3.
The current carbon monoxide (CO) concentration at Mundelein, Illinois is 0.334 ppm.
The current sulfur dioxide (SO2) concentration at Mundelein, Illinois is 1.281 ppb.
The current ozone (O3) concentration at Mundelein, Illinois is 25.235 ppm.
The current nitrogen dioxide (NO2) concentration at Mundelein, Illinois is 10.507 ppb.
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