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)
27
Good
Edwardsville, Illinois
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
4.72 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
17.85 μg/m³
0
55
155
255
425
605+
14.87 ppb
0
55
71
86
201
201+
0.47 ppb
0
36
76
186
605
1005+
3.09 ppb
0
54
101
361
1250
2050+
0.11 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Edwardsville, Illinois
Edwardsville, Illinois
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AQI 54
Moderate
11.17μg/m³
PM2.5
33.72μg/m³
PM10
13.59ppb
O3
0.76ppb
SO2
6.33ppb
NO2
0.39ppm
CO
AQI 54
Moderate
11.39μg/m³
PM2.5
33.90μg/m³
PM10
17.57ppb
O3
0.74ppb
SO2
8.99ppb
NO2
0.38ppm
CO
AQI 58
Moderate
12.87μg/m³
PM2.5
57.88μg/m³
PM10
11.41ppb
O3
0.69ppb
SO2
6.94ppb
NO2
0.38ppm
CO
AQI 56
Moderate
12.29μg/m³
PM2.5
27.86μg/m³
PM10
13.35ppb
O3
0.71ppb
SO2
11.74ppb
NO2
0.39ppm
CO
AQI 60
Moderate
13.59μg/m³
PM2.5
58.27μg/m³
PM10
12.88ppb
O3
0.64ppb
SO2
17.68ppb
NO2
0.40ppm
CO
AQI 56
Moderate
11.51μg/m³
PM2.5
44.92μg/m³
PM10
11.38ppb
O3
0.70ppb
SO2
5.08ppb
NO2
0.39ppm
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 2026-01-23.
In the last 24 hours, the best air quality in Edwardsville, Illinois was observed at 01:00:00 on 2026-01-22.
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 11.412 μg/m3.
The PM10 concentration in Edwardsville, Illinois is 39.931 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Edwardsville, Illinois is 0.381 ppm.
Currently, Edwardsville, Illinois has a sulfur dioxide (SO2) concentration of 0.76 ppb.
The current ozone (O3) level in Edwardsville, Illinois at the moment is 13.612 ppm.
Nitrogen dioxide (NO2) level in Edwardsville, Illinois at the moment is 6.292 ppb.
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