Stay updated with real-time air quality in North Chicago, 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)
23
Good
North Chicago, Illinois
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
1.86 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
7.28 μg/m³
0
55
155
255
425
605+
25.29 ppb
0
55
71
86
201
201+
0.31 ppb
0
36
76
186
605
1005+
5.69 ppb
0
54
101
361
1250
2050+
0.26 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
North Chicago, Illinois
Scroll To Air Quality MapLoading...
AQI 26
Good
1.60μg/m³
PM2.5
7.13μg/m³
PM10
27.51ppb
O3
0.31ppb
SO2
5.47ppb
NO2
0.26ppm
CO
AQI 27
Good
1.64μg/m³
PM2.5
6.28μg/m³
PM10
28.80ppb
O3
0.29ppb
SO2
5.91ppb
NO2
0.27ppm
CO
AQI 22
Good
1.83μg/m³
PM2.5
5.25μg/m³
PM10
23.99ppb
O3
0.36ppb
SO2
4.08ppb
NO2
0.24ppm
CO
AQI 21
Good
1.88μg/m³
PM2.5
7.29μg/m³
PM10
22.56ppb
O3
0.31ppb
SO2
5.61ppb
NO2
0.25ppm
CO
AQI 27
Good
1.63μg/m³
PM2.5
6.53μg/m³
PM10
28.95ppb
O3
0.29ppb
SO2
5.95ppb
NO2
0.27ppm
CO
AQI 23
Good
2.04μg/m³
PM2.5
5.42μg/m³
PM10
25.28ppb
O3
0.30ppb
SO2
6.11ppb
NO2
0.26ppm
CO
Air quality and pollutant data for Illinois, USA are sourced from ground-based monitors and satellites, adhering to US EPA standards. Machine learning and advanced algorithms enhance the data by incorporating local variables like traffic and population density, ensuring high accuracy and dependability.
Source: Ambee Data Sources
The air quality information for North Chicago, Illinois is updated every hour for accuracy.
In the past 24 hours, the air quality in North Chicago, Illinois was at its worst at 11:00:00 on 2026-03-10.
In the last 24 hours, the best air quality in North Chicago, Illinois was observed at 07:00:00 on 2026-03-11.
As of now, the AQI in North Chicago, Illinois is 23, indicating Good conditions.
North Chicago, Illinois air has the highest levels of O3.
Poor air quality in North Chicago, Illinois means it's advisable to stay indoors and wear a mask for your protection.
PM2.5 levels in North Chicago, Illinois are currently 1.857 μg/m3.
The PM10 concentration in North Chicago, Illinois is 7.283 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in North Chicago, Illinois is 0.256 ppm.
Currently, North Chicago, Illinois has a sulfur dioxide (SO2) concentration of 0.31 ppb.
The current ozone (O3) level in North Chicago, Illinois at the moment is 25.29 ppm.
Nitrogen dioxide (NO2) level in North Chicago, Illinois at the moment is 5.688 ppb.
All Rights Reserved © Ambee Inc. 2025