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)
134
Unhealthy for sensitive groups
Mount Prospect, Illinois
Last updated: ... (Local time)
Good
Fine
Moderate
Poor
Very poor
Hazardous
49.44 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
219.05 μg/m³
0
55
155
255
425
605+
47.96 ppb
0
55
71
86
201
201+
1.81 ppb
0
36
76
186
605
1005+
3.50 ppb
0
54
101
361
1250
2050+
0.28 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 134
Unhealthy for sensitive groups
48.86μg/m³
PM2.5
215.88μg/m³
PM10
47.70ppb
O3
1.80ppb
SO2
3.50ppb
NO2
0.28ppm
CO
AQI 112
Unhealthy for sensitive groups
39.54μg/m³
PM2.5
121.55μg/m³
PM10
39.17ppb
O3
1.79ppb
SO2
3.49ppb
NO2
0.28ppm
CO
AQI 137
Unhealthy for sensitive groups
50.04μg/m³
PM2.5
222.60μg/m³
PM10
48.19ppb
O3
1.82ppb
SO2
3.50ppb
NO2
0.28ppm
CO
AQI 139
Unhealthy for sensitive groups
48.41μg/m³
PM2.5
230.72μg/m³
PM10
40.41ppb
O3
1.77ppb
SO2
3.51ppb
NO2
0.28ppm
CO
AQI 137
Unhealthy for sensitive groups
50.41μg/m³
PM2.5
221.72μg/m³
PM10
49.00ppb
O3
1.88ppb
SO2
3.47ppb
NO2
0.28ppm
CO
AQI 132
Unhealthy for sensitive groups
48.20μg/m³
PM2.5
212.75μg/m³
PM10
47.33ppb
O3
1.78ppb
SO2
3.50ppb
NO2
0.28ppm
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 10:00:00 on 2025-06-05.
In the last 24 hours, the best air quality in Mount Prospect, Illinois was observed at 05:00:00 on 2025-06-05.
As of now, the AQI in Mount Prospect, Illinois is 134, indicating Unhealthy for Sensitive Groups 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 49.444 μg/m3.
The PM10 concentration in Mount Prospect, Illinois is 219.047 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Mount Prospect, Illinois is 0.28 ppm.
Currently, Mount Prospect, Illinois has a sulfur dioxide (SO2) concentration of 1.809 ppb.
The current ozone (O3) level in Mount Prospect, Illinois at the moment is 47.959 ppm.
Nitrogen dioxide (NO2) level in Mount Prospect, Illinois at the moment is 3.498 ppb.
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