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)
31
Good
North Chicago, Illinois
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
2.22 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
10.04 μg/m³
0
55
155
255
425
605+
33.81 ppb
0
55
71
86
201
201+
0.54 ppb
0
36
76
186
605
1005+
5.26 ppb
0
54
101
361
1250
2050+
0.19 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
North Chicago, Illinois
North Chicago, Illinois
Scroll To Air Quality MapLoading...
AQI 31
Good
2.04μg/m³
PM2.5
9.39μg/m³
PM10
32.86ppb
O3
0.31ppb
SO2
3.17ppb
NO2
0.14ppm
CO
AQI 32
Good
1.90μg/m³
PM2.5
7.82μg/m³
PM10
35.41ppb
O3
0.30ppb
SO2
3.36ppb
NO2
0.15ppm
CO
AQI 35
Good
1.80μg/m³
PM2.5
7.52μg/m³
PM10
38.20ppb
O3
0.33ppb
SO2
2.71ppb
NO2
0.14ppm
CO
AQI 31
Good
2.06μg/m³
PM2.5
9.40μg/m³
PM10
34.35ppb
O3
0.32ppb
SO2
2.91ppb
NO2
0.14ppm
CO
AQI 33
Good
1.92μg/m³
PM2.5
7.79μg/m³
PM10
35.87ppb
O3
0.30ppb
SO2
3.37ppb
NO2
0.15ppm
CO
AQI 31
Good
2.05μg/m³
PM2.5
9.45μg/m³
PM10
33.95ppb
O3
0.30ppb
SO2
3.06ppb
NO2
0.15ppm
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 02:00:00 on 2026-06-14.
In the last 24 hours, the best air quality in North Chicago, Illinois was observed at 10:00:00 on 2026-06-14.
As of now, the AQI in North Chicago, Illinois is 31, 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 2.219 μg/m3.
The PM10 concentration in North Chicago, Illinois is 10.043 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in North Chicago, Illinois is 0.191 ppm.
Currently, North Chicago, Illinois has a sulfur dioxide (SO2) concentration of 0.54 ppb.
The current ozone (O3) level in North Chicago, Illinois at the moment is 33.814 ppm.
Nitrogen dioxide (NO2) level in North Chicago, Illinois at the moment is 5.256 ppb.
All Rights Reserved © Ambee Inc. 2025