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)
49
Good
Edwardsville, Illinois
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
8.99 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
41.01 μg/m³
0
55
155
255
425
605+
28.27 ppb
0
55
71
86
201
201+
0.88 ppb
0
36
76
186
605
1005+
4.20 ppb
0
54
101
361
1250
2050+
0.19 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Edwardsville, Illinois
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AQI 44
Good
8.22μg/m³
PM2.5
36.17μg/m³
PM10
28.26ppb
O3
0.82ppb
SO2
4.20ppb
NO2
0.18ppm
CO
AQI 44
Good
8.10μg/m³
PM2.5
36.16μg/m³
PM10
28.09ppb
O3
0.81ppb
SO2
4.20ppb
NO2
0.18ppm
CO
AQI 49
Good
8.96μg/m³
PM2.5
40.55μg/m³
PM10
27.26ppb
O3
0.86ppb
SO2
4.16ppb
NO2
0.19ppm
CO
AQI 44
Good
8.12μg/m³
PM2.5
37.49μg/m³
PM10
28.40ppb
O3
0.82ppb
SO2
4.14ppb
NO2
0.17ppm
CO
AQI 49
Good
8.55μg/m³
PM2.5
38.71μg/m³
PM10
29.89ppb
O3
0.86ppb
SO2
3.92ppb
NO2
0.15ppm
CO
AQI 49
Good
9.04μg/m³
PM2.5
40.70μg/m³
PM10
32.09ppb
O3
0.89ppb
SO2
3.73ppb
NO2
0.20ppm
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 07:00:00 on 2026-03-09.
In the last 24 hours, the best air quality in Edwardsville, Illinois was observed at 07:00:00 on 2026-03-09.
As of now, the AQI in Edwardsville, Illinois is 49, indicating Good 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 8.993 μg/m3.
The PM10 concentration in Edwardsville, Illinois is 41.009 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Edwardsville, Illinois is 0.186 ppm.
Currently, Edwardsville, Illinois has a sulfur dioxide (SO2) concentration of 0.879 ppb.
The current ozone (O3) level in Edwardsville, Illinois at the moment is 28.269 ppm.
Nitrogen dioxide (NO2) level in Edwardsville, Illinois at the moment is 4.204 ppb.
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