Stay updated with real-time air quality in West 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)
16
Good
West Chicago, Illinois
Last updated: ... (Local time)
Good
Fine
Moderate
Poor
Very poor
Hazardous
3.24 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
13.40 μg/m³
0
55
155
255
425
605+
12.77 ppb
0
55
71
86
201
201+
0.73 ppb
0
36
76
186
605
1005+
6.04 ppb
0
54
101
361
1250
2050+
0.18 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Moderate
West Chicago, Illinois
West Chicago, Illinois
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AQI 33
Good
5.74μg/m³
PM2.5
26.44μg/m³
PM10
18.38ppb
O3
0.61ppb
SO2
4.04ppb
NO2
0.21ppm
CO
AQI 33
Good
5.91μg/m³
PM2.5
26.93μg/m³
PM10
18.50ppb
O3
0.60ppb
SO2
4.06ppb
NO2
0.21ppm
CO
AQI 33
Good
5.70μg/m³
PM2.5
25.62μg/m³
PM10
18.71ppb
O3
0.61ppb
SO2
4.05ppb
NO2
0.21ppm
CO
AQI 33
Good
5.67μg/m³
PM2.5
26.51μg/m³
PM10
18.07ppb
O3
0.60ppb
SO2
4.02ppb
NO2
0.21ppm
CO
AQI 33
Good
5.83μg/m³
PM2.5
33.96μg/m³
PM10
19.51ppb
O3
0.52ppb
SO2
4.31ppb
NO2
0.21ppm
CO
AQI 33
Good
5.75μg/m³
PM2.5
25.58μg/m³
PM10
19.21ppb
O3
0.60ppb
SO2
4.10ppb
NO2
0.21ppm
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 West Chicago, Illinois is updated every hour.
The worst air quality in West Chicago, Illinois in the last 24 hours was observed at 01:00:00 on 2025-09-05.
In the last 24 hrs, the best air quality in West Chicago, Illinois was observed at 12:00:00 on 2025-09-06.
The current air quality in West Chicago, Illinois is 16, categorized as Good based on real-time data.
The most common pollutant in West Chicago, Illinois is PM2.5.
If the air quality in West Chicago, Illinois is poor, consider staying indoors and wearing a mask to protect yourself.
The current PM2.5 concentration at West Chicago, Illinois is 3.243 μg/m3.
The current PM10 concentration at West Chicago, Illinois is 13.399 μg/m3.
The current carbon monoxide (CO) concentration at West Chicago, Illinois is 0.176 ppm.
The current sulfur dioxide (SO2) concentration at West Chicago, Illinois is 0.732 ppb.
The current ozone (O3) concentration at West Chicago, Illinois is 12.767 ppm.
The current nitrogen dioxide (NO2) concentration at West Chicago, Illinois is 6.039 ppb.
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