Stay updated with real-time air quality in Des Plaines, 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)
49
Good
Des Plaines, Illinois
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
8.82 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
39.04 μg/m³
0
55
155
255
425
605+
18.59 ppb
0
55
71
86
201
201+
0.45 ppb
0
36
76
186
605
1005+
6.05 ppb
0
54
101
361
1250
2050+
0.17 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
High
Des Plaines, Illinois
Des Plaines, Illinois
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AQI 49
Good
9.46μg/m³
PM2.5
42.19μg/m³
PM10
15.00ppb
O3
0.37ppb
SO2
4.33ppb
NO2
0.18ppm
CO
AQI 52
Moderate
9.54μg/m³
PM2.5
40.81μg/m³
PM10
15.60ppb
O3
0.37ppb
SO2
4.33ppb
NO2
0.18ppm
CO
AQI 49
Good
9.23μg/m³
PM2.5
40.86μg/m³
PM10
16.49ppb
O3
0.37ppb
SO2
4.33ppb
NO2
0.18ppm
CO
AQI 49
Good
9.27μg/m³
PM2.5
37.52μg/m³
PM10
17.22ppb
O3
0.37ppb
SO2
4.33ppb
NO2
0.18ppm
CO
AQI 49
Good
9.22μg/m³
PM2.5
40.05μg/m³
PM10
14.23ppb
O3
0.38ppb
SO2
4.33ppb
NO2
0.18ppm
CO
AQI 49
Good
9.37μg/m³
PM2.5
38.83μg/m³
PM10
16.27ppb
O3
0.37ppb
SO2
4.33ppb
NO2
0.18ppm
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 Des Plaines, Illinois is updated every hour.
The worst air quality in Des Plaines, Illinois in the last 24 hours was observed at 07:00:00 on 2026-04-27.
In the last 24 hrs, the best air quality in Des Plaines, Illinois was observed at 03:00:00 on 2026-04-27.
The current air quality in Des Plaines, Illinois is 49, categorized as Good based on real-time data.
The most common pollutant in Des Plaines, Illinois is PM2.5.
If the air quality in Des Plaines, Illinois is poor, consider staying indoors and wearing a mask to protect yourself.
The current PM2.5 concentration at Des Plaines, Illinois is 8.818 μg/m3.
The current PM10 concentration at Des Plaines, Illinois is 39.039 μg/m3.
The current carbon monoxide (CO) concentration at Des Plaines, Illinois is 0.173 ppm.
The current sulfur dioxide (SO2) concentration at Des Plaines, Illinois is 0.447 ppb.
The current ozone (O3) concentration at Des Plaines, Illinois is 18.587 ppm.
The current nitrogen dioxide (NO2) concentration at Des Plaines, Illinois is 6.051 ppb.
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