Stay updated with real-time air quality in Prospect Heights, 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)
40
Good
Prospect Heights, Illinois
Last updated: ... (Local time)
Good
Fine
Moderate
Poor
Very poor
Hazardous
5.73 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
22.74 μg/m³
0
55
155
255
425
605+
42.68 ppb
0
55
71
86
201
201+
0.38 ppb
0
36
76
186
605
1005+
5.02 ppb
0
54
101
361
1250
2050+
0.32 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Prospect Heights, Illinois
Prospect Heights, Illinois
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AQI 82
Moderate
26.22μg/m³
PM2.5
105.77μg/m³
PM10
58.76ppb
O3
0.69ppb
SO2
1.87ppb
NO2
0.55ppm
CO
AQI 77
Moderate
22.93μg/m³
PM2.5
83.71μg/m³
PM10
57.39ppb
O3
0.73ppb
SO2
1.84ppb
NO2
0.56ppm
CO
AQI 81
Moderate
24.94μg/m³
PM2.5
92.40μg/m³
PM10
58.08ppb
O3
0.69ppb
SO2
1.86ppb
NO2
0.55ppm
CO
AQI 77
Moderate
22.96μg/m³
PM2.5
82.01μg/m³
PM10
56.44ppb
O3
0.73ppb
SO2
2.07ppb
NO2
0.56ppm
CO
AQI 73
Moderate
21.07μg/m³
PM2.5
76.56μg/m³
PM10
56.66ppb
O3
0.72ppb
SO2
1.86ppb
NO2
0.56ppm
CO
AQI 71
Moderate
20.35μg/m³
PM2.5
76.49μg/m³
PM10
59.13ppb
O3
0.71ppb
SO2
1.82ppb
NO2
0.56ppm
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 Prospect Heights, Illinois is updated every hour.
The worst air quality in Prospect Heights, Illinois in the last 24 hours was observed at 07:00:00 on 2025-07-22.
In the last 24 hrs, the best air quality in Prospect Heights, Illinois was observed at 03:00:00 on 2025-07-22.
The current air quality in Prospect Heights, Illinois is 79, categorized as Moderate based on real-time data.
The most common pollutant in Prospect Heights, Illinois is PM2.5.
If the air quality in Prospect Heights, Illinois is poor, consider staying indoors and wearing a mask to protect yourself.
The current PM2.5 concentration at Prospect Heights, Illinois is 23.902 μg/m3.
The current PM10 concentration at Prospect Heights, Illinois is 95.293 μg/m3.
The current carbon monoxide (CO) concentration at Prospect Heights, Illinois is 0.51 ppm.
The current sulfur dioxide (SO2) concentration at Prospect Heights, Illinois is 0.874 ppb.
The current ozone (O3) concentration at Prospect Heights, Illinois is 58.138 ppm.
The current nitrogen dioxide (NO2) concentration at Prospect Heights, Illinois is 2.083 ppb.
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