Stay updated with real-time air quality in Mount Prospect, 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
Mount Prospect, Illinois
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
8.68 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
37.19 μg/m³
0
55
155
255
425
605+
19.08 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
Mount Prospect, Illinois
Mount Prospect, Illinois
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AQI 49
Good
8.55μg/m³
PM2.5
35.34μg/m³
PM10
19.51ppb
O3
0.45ppb
SO2
6.05ppb
NO2
0.17ppm
CO
AQI 33
Good
6.49μg/m³
PM2.5
28.33μg/m³
PM10
25.94ppb
O3
0.44ppb
SO2
5.96ppb
NO2
0.17ppm
CO
AQI 49
Good
8.82μg/m³
PM2.5
39.04μg/m³
PM10
18.59ppb
O3
0.45ppb
SO2
6.05ppb
NO2
0.17ppm
CO
AQI 33
Good
6.46μg/m³
PM2.5
27.16μg/m³
PM10
26.16ppb
O3
0.44ppb
SO2
5.95ppb
NO2
0.17ppm
CO
AQI 44
Good
8.49μg/m³
PM2.5
37.27μg/m³
PM10
17.09ppb
O3
0.46ppb
SO2
6.09ppb
NO2
0.17ppm
CO
AQI 44
Good
8.41μg/m³
PM2.5
33.20μg/m³
PM10
19.96ppb
O3
0.45ppb
SO2
6.05ppb
NO2
0.17ppm
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 Mount Prospect, Illinois is updated every hour for accuracy.
In the past 24 hours, the air quality in Mount Prospect, Illinois was at its worst at 08:00:00 on 2026-04-27.
In the last 24 hours, the best air quality in Mount Prospect, Illinois was observed at 03:00:00 on 2026-04-27.
As of now, the AQI in Mount Prospect, Illinois is 49, indicating Good conditions.
Mount Prospect, Illinois air has the highest levels of PM2.5.
Poor air quality in Mount Prospect, Illinois means it's advisable to stay indoors and wear a mask for your protection.
PM2.5 levels in Mount Prospect, Illinois are currently 8.682 μg/m3.
The PM10 concentration in Mount Prospect, Illinois is 37.185 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Mount Prospect, Illinois is 0.174 ppm.
Currently, Mount Prospect, Illinois has a sulfur dioxide (SO2) concentration of 0.447 ppb.
The current ozone (O3) level in Mount Prospect, Illinois at the moment is 19.083 ppm.
Nitrogen dioxide (NO2) level in Mount Prospect, Illinois at the moment is 6.053 ppb.
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