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)
38
Good
Cahokia Heights, Illinois
Last updated: ... (Local time)
Good
Fine
Moderate
Poor
Very poor
Hazardous
7.49 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
26.26 μg/m³
0
55
155
255
425
605+
14.29 ppb
0
55
71
86
201
201+
0.72 ppb
0
36
76
186
605
1005+
14.64 ppb
0
54
101
361
1250
2050+
0.20 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
10.84μg/m³
PM2.5
27.61μg/m³
PM10
14.49ppb
O3
0.42ppb
SO2
18.23ppb
NO2
0.20ppm
CO
AQI 38
Good
7.17μg/m³
PM2.5
31.93μg/m³
PM10
11.10ppb
O3
0.64ppb
SO2
17.35ppb
NO2
0.20ppm
CO
AQI 27
Good
5.30μg/m³
PM2.5
23.13μg/m³
PM10
15.96ppb
O3
1.01ppb
SO2
10.29ppb
NO2
0.20ppm
CO
AQI 27
Good
5.25μg/m³
PM2.5
19.53μg/m³
PM10
16.82ppb
O3
0.99ppb
SO2
10.09ppb
NO2
0.20ppm
CO
AQI 27
Good
5.26μg/m³
PM2.5
22.48μg/m³
PM10
16.38ppb
O3
1.03ppb
SO2
9.76ppb
NO2
0.20ppm
CO
AQI 16
Good
2.81μg/m³
PM2.5
10.80μg/m³
PM10
17.35ppb
O3
0.92ppb
SO2
11.20ppb
NO2
0.20ppm
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 05:00:00 on 2025-07-16.
The best air quality in Cahokia Heights, Illinois was recorded at 05:00:00 on 2025-07-17.
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 7.489 μg/m3.
The current PM10 levels in Cahokia Heights, Illinois are 26.263 μg/m3.
The current carbon monoxide (CO) level in Cahokia Heights, Illinois is 0.201 ppm.
The current sulfur dioxide (SO2) levels in Cahokia Heights, Illinois are 0.719 ppb.
The current ozone (O3) levels at Cahokia Heights, Illinois is 14.288 ppm.
The current nitrogen dioxide (NO2) levels at Cahokia Heights, Illinois is 14.636 ppb.
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