Stay updated with real-time air quality in Edwardsville, 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)
54
Moderate
Edwardsville, Illinois
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
10.96 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
44.30 μg/m³
0
55
155
255
425
605+
44.22 ppb
0
55
71
86
201
201+
0.54 ppb
0
36
76
186
605
1005+
8.71 ppb
0
54
101
361
1250
2050+
0.19 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Very high
Edwardsville, Illinois
Edwardsville, Illinois
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AQI 52
Moderate
9.91μg/m³
PM2.5
41.32μg/m³
PM10
47.13ppb
O3
0.34ppb
SO2
11.31ppb
NO2
0.19ppm
CO
AQI 52
Moderate
9.83μg/m³
PM2.5
41.04μg/m³
PM10
47.73ppb
O3
0.34ppb
SO2
11.32ppb
NO2
0.19ppm
CO
AQI 49
Good
8.93μg/m³
PM2.5
38.93μg/m³
PM10
39.18ppb
O3
0.34ppb
SO2
11.31ppb
NO2
0.19ppm
CO
AQI 52
Moderate
10.04μg/m³
PM2.5
42.16μg/m³
PM10
47.11ppb
O3
0.32ppb
SO2
11.39ppb
NO2
0.19ppm
CO
AQI 54
Moderate
11.46μg/m³
PM2.5
47.84μg/m³
PM10
40.58ppb
O3
0.22ppb
SO2
11.79ppb
NO2
0.20ppm
CO
AQI 49
Good
9.40μg/m³
PM2.5
36.33μg/m³
PM10
39.68ppb
O3
0.33ppb
SO2
11.38ppb
NO2
0.19ppm
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 Edwardsville, Illinois is updated every hour for accuracy.
In the past 24 hours, the air quality in Edwardsville, Illinois was at its worst at 05:00:00 on 2026-04-23.
In the last 24 hours, the best air quality in Edwardsville, Illinois was observed at 12:00:00 on 2026-04-23.
As of now, the AQI in Edwardsville, Illinois is 54, indicating Moderate conditions.
Edwardsville, Illinois air has the highest levels of PM2.5.
Poor air quality in Edwardsville, Illinois means it's advisable to stay indoors and wear a mask for your protection.
PM2.5 levels in Edwardsville, Illinois are currently 10.959 μg/m3.
The PM10 concentration in Edwardsville, Illinois is 44.3 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Edwardsville, Illinois is 0.191 ppm.
Currently, Edwardsville, Illinois has a sulfur dioxide (SO2) concentration of 0.54 ppb.
The current ozone (O3) level in Edwardsville, Illinois at the moment is 44.22 ppm.
Nitrogen dioxide (NO2) level in Edwardsville, Illinois at the moment is 8.713 ppb.
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