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)
33
Good
North Chicago, Illinois
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
5.56 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
23.70 μg/m³
0
55
155
255
425
605+
25.29 ppb
0
55
71
86
201
201+
1.19 ppb
0
36
76
186
605
1005+
13.44 ppb
0
54
101
361
1250
2050+
0.26 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
North Chicago, Illinois
North Chicago, Illinois
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AQI 27
Good
5.02μg/m³
PM2.5
24.03μg/m³
PM10
23.21ppb
O3
1.20ppb
SO2
13.00ppb
NO2
0.25ppm
CO
AQI 27
Good
4.99μg/m³
PM2.5
20.03μg/m³
PM10
23.24ppb
O3
1.19ppb
SO2
13.21ppb
NO2
0.25ppm
CO
AQI 33
Good
5.83μg/m³
PM2.5
22.22μg/m³
PM10
24.17ppb
O3
1.47ppb
SO2
10.28ppb
NO2
0.23ppm
CO
AQI 27
Good
4.90μg/m³
PM2.5
23.77μg/m³
PM10
23.48ppb
O3
1.20ppb
SO2
11.37ppb
NO2
0.24ppm
CO
AQI 27
Good
4.99μg/m³
PM2.5
20.03μg/m³
PM10
23.24ppb
O3
1.19ppb
SO2
13.21ppb
NO2
0.25ppm
CO
AQI 27
Good
4.72μg/m³
PM2.5
19.45μg/m³
PM10
23.03ppb
O3
1.19ppb
SO2
12.57ppb
NO2
0.25ppm
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 09:00:00 on 2026-01-24.
In the last 24 hours, the best air quality in North Chicago, Illinois was observed at 01:00:00 on 2026-01-25.
As of now, the AQI in North Chicago, Illinois is 33, indicating Good conditions.
North Chicago, Illinois air has the highest levels of PM2.5.
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 5.56 μg/m3.
The PM10 concentration in North Chicago, Illinois is 23.695 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in North Chicago, Illinois is 0.258 ppm.
Currently, North Chicago, Illinois has a sulfur dioxide (SO2) concentration of 1.187 ppb.
The current ozone (O3) level in North Chicago, Illinois at the moment is 25.291 ppm.
Nitrogen dioxide (NO2) level in North Chicago, Illinois at the moment is 13.435 ppb.
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