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)
44
Good
Mount Prospect, Illinois
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
8.08 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
33.97 μg/m³
0
55
155
255
425
605+
13.90 ppb
0
55
71
86
201
201+
1.12 ppb
0
36
76
186
605
1005+
22.80 ppb
0
54
101
361
1250
2050+
0.29 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Mount Prospect, Illinois
Mount Prospect, Illinois
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AQI 44
Good
7.77μg/m³
PM2.5
31.72μg/m³
PM10
14.56ppb
O3
1.12ppb
SO2
22.74ppb
NO2
0.29ppm
CO
AQI 44
Good
7.63μg/m³
PM2.5
34.33μg/m³
PM10
12.79ppb
O3
1.11ppb
SO2
24.95ppb
NO2
0.29ppm
CO
AQI 44
Good
8.43μg/m³
PM2.5
36.36μg/m³
PM10
13.30ppb
O3
1.12ppb
SO2
22.82ppb
NO2
0.29ppm
CO
AQI 38
Good
6.97μg/m³
PM2.5
30.34μg/m³
PM10
12.64ppb
O3
1.11ppb
SO2
24.94ppb
NO2
0.29ppm
CO
AQI 49
Good
8.75μg/m³
PM2.5
37.32μg/m³
PM10
12.73ppb
O3
1.13ppb
SO2
23.65ppb
NO2
0.29ppm
CO
AQI 38
Good
7.45μg/m³
PM2.5
29.26μg/m³
PM10
15.41ppb
O3
1.12ppb
SO2
22.61ppb
NO2
0.29ppm
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 06:00:00 on 2026-01-24.
In the last 24 hours, the best air quality in Mount Prospect, Illinois was observed at 04:00:00 on 2026-01-24.
As of now, the AQI in Mount Prospect, Illinois is 44, 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 8.08 μg/m3.
The PM10 concentration in Mount Prospect, Illinois is 33.966 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Mount Prospect, Illinois is 0.294 ppm.
Currently, Mount Prospect, Illinois has a sulfur dioxide (SO2) concentration of 1.121 ppb.
The current ozone (O3) level in Mount Prospect, Illinois at the moment is 13.905 ppm.
Nitrogen dioxide (NO2) level in Mount Prospect, Illinois at the moment is 22.803 ppb.
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