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)
41
Good
Des Plaines, Illinois
Last updated: ... (Local time)
Good
Fine
Moderate
Poor
Very poor
Hazardous
5.05 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
21.74 μg/m³
0
55
155
255
425
605+
43.71 ppb
0
55
71
86
201
201+
1.08 ppb
0
36
76
186
605
1005+
2.62 ppb
0
54
101
361
1250
2050+
0.20 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 41
Good
5.20μg/m³
PM2.5
22.42μg/m³
PM10
44.21ppb
O3
0.99ppb
SO2
3.03ppb
NO2
0.19ppm
CO
AQI 41
Good
5.11μg/m³
PM2.5
22.12μg/m³
PM10
43.94ppb
O3
0.97ppb
SO2
3.05ppb
NO2
0.20ppm
CO
AQI 43
Good
5.27μg/m³
PM2.5
22.62μg/m³
PM10
45.95ppb
O3
0.98ppb
SO2
3.02ppb
NO2
0.19ppm
CO
AQI 42
Good
5.05μg/m³
PM2.5
21.75μg/m³
PM10
45.23ppb
O3
0.96ppb
SO2
3.04ppb
NO2
0.20ppm
CO
AQI 39
Good
4.90μg/m³
PM2.5
21.19μg/m³
PM10
42.46ppb
O3
0.99ppb
SO2
3.04ppb
NO2
0.20ppm
CO
AQI 41
Good
5.06μg/m³
PM2.5
21.85μg/m³
PM10
44.32ppb
O3
0.97ppb
SO2
3.04ppb
NO2
0.20ppm
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 04:00:00 on 2025-09-09.
In the last 24 hrs, the best air quality in Des Plaines, Illinois was observed at 06:00:00 on 2025-09-09.
The current air quality in Des Plaines, Illinois is 41, categorized as Good based on real-time data.
The most common pollutant in Des Plaines, Illinois is O3.
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 5.055 μg/m3.
The current PM10 concentration at Des Plaines, Illinois is 21.742 μg/m3.
The current carbon monoxide (CO) concentration at Des Plaines, Illinois is 0.198 ppm.
The current sulfur dioxide (SO2) concentration at Des Plaines, Illinois is 1.079 ppb.
The current ozone (O3) concentration at Des Plaines, Illinois is 43.706 ppm.
The current nitrogen dioxide (NO2) concentration at Des Plaines, Illinois is 2.618 ppb.
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