Stay updated with real-time air quality in Cahokia 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)
62
Moderate
Cahokia Heights, Illinois
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
15.07 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
59.62 μg/m³
0
55
155
255
425
605+
17.36 ppb
0
55
71
86
201
201+
1.04 ppb
0
36
76
186
605
1005+
10.56 ppb
0
54
101
361
1250
2050+
0.30 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Cahokia Heights, Illinois
Cahokia Heights, Illinois
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AQI 54
Moderate
10.66μg/m³
PM2.5
34.59μg/m³
PM10
16.31ppb
O3
0.89ppb
SO2
9.86ppb
NO2
0.21ppm
CO
AQI 60
Moderate
14.42μg/m³
PM2.5
64.27μg/m³
PM10
16.81ppb
O3
0.87ppb
SO2
8.74ppb
NO2
0.23ppm
CO
AQI 52
Moderate
9.98μg/m³
PM2.5
41.41μg/m³
PM10
18.12ppb
O3
0.81ppb
SO2
8.00ppb
NO2
0.25ppm
CO
AQI 52
Moderate
9.99μg/m³
PM2.5
39.06μg/m³
PM10
17.86ppb
O3
0.81ppb
SO2
8.30ppb
NO2
0.26ppm
CO
AQI 52
Moderate
10.16μg/m³
PM2.5
39.85μg/m³
PM10
18.11ppb
O3
0.80ppb
SO2
7.85ppb
NO2
0.25ppm
CO
AQI 52
Moderate
9.89μg/m³
PM2.5
43.36μg/m³
PM10
17.24ppb
O3
0.79ppb
SO2
9.29ppb
NO2
0.27ppm
CO
Air quality measurements for Illinois, USA meet strict US EPA standards. These measurements are collected from reliable sources, including satellites and ground-based monitoring systems. Advanced algorithms and machine learning techniques are applied to the data, factoring in variables such as traffic and population density, to ensure precision and reliability.
Source: Ambee Data Sources
Air quality data for Cahokia Heights, Illinois is updated on an hourly basis.
The worst air quality in Cahokia Heights, Illinois was recorded at 04:00:00 on 2025-12-06.
The best air quality in Cahokia Heights, Illinois was recorded at 10:00:00 on 2025-12-06.
The real-time air quality index in Cahokia Heights, Illinois is 62, currently categorized as Moderate.
The most common pollutant in Cahokia Heights, Illinois is PM2.5.
If the air quality in Cahokia Heights, Illinois is poor, limit outdoor activities and use a mask to safeguard your health.
The measured PM2.5 levels in Cahokia Heights, Illinois at present are 15.072 μg/m3.
The current PM10 levels in Cahokia Heights, Illinois are 59.617 μg/m3.
The current carbon monoxide (CO) level in Cahokia Heights, Illinois is 0.298 ppm.
The current sulfur dioxide (SO2) levels in Cahokia Heights, Illinois are 1.041 ppb.
The current ozone (O3) levels at Cahokia Heights, Illinois is 17.365 ppm.
The current nitrogen dioxide (NO2) levels at Cahokia Heights, Illinois is 10.564 ppb.
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