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)
49
Good
Cahokia Heights, Illinois
Last updated: ... (Local time)
Good
Fine
Moderate
Poor
Very poor
Hazardous
9.28 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
37.27 μg/m³
0
55
155
255
425
605+
29.59 ppb
0
55
71
86
201
201+
0.83 ppb
0
36
76
186
605
1005+
4.33 ppb
0
54
101
361
1250
2050+
0.17 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 52
Moderate
10.35μg/m³
PM2.5
45.66μg/m³
PM10
20.08ppb
O3
1.06ppb
SO2
8.02ppb
NO2
0.25ppm
CO
AQI 52
Moderate
10.12μg/m³
PM2.5
44.83μg/m³
PM10
19.86ppb
O3
1.00ppb
SO2
7.88ppb
NO2
0.24ppm
CO
AQI 44
Good
8.47μg/m³
PM2.5
37.56μg/m³
PM10
20.05ppb
O3
1.50ppb
SO2
8.02ppb
NO2
0.26ppm
CO
AQI 49
Good
8.91μg/m³
PM2.5
39.46μg/m³
PM10
20.15ppb
O3
1.46ppb
SO2
8.06ppb
NO2
0.26ppm
CO
AQI 44
Good
8.35μg/m³
PM2.5
36.94μg/m³
PM10
20.08ppb
O3
1.51ppb
SO2
8.01ppb
NO2
0.26ppm
CO
AQI 52
Moderate
10.15μg/m³
PM2.5
44.84μg/m³
PM10
22.23ppb
O3
1.28ppb
SO2
8.48ppb
NO2
0.25ppm
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 03:00:00 on 2025-07-22.
The best air quality in Cahokia Heights, Illinois was recorded at 09:00:00 on 2025-07-21.
The real-time air quality index in Cahokia Heights, Illinois is 38, currently categorized as Good.
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 6.658 μg/m3.
The current PM10 levels in Cahokia Heights, Illinois are 26.93 μg/m3.
The current carbon monoxide (CO) level in Cahokia Heights, Illinois is 0.236 ppm.
The current sulfur dioxide (SO2) levels in Cahokia Heights, Illinois are 0.339 ppb.
The current ozone (O3) levels at Cahokia Heights, Illinois is 24.914 ppm.
The current nitrogen dioxide (NO2) levels at Cahokia Heights, Illinois is 10.388 ppb.
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