Stay updated with real-time air quality in Warrenville, 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)
42
Good
Warrenville, Illinois
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
5.97 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
26.20 μg/m³
0
55
155
255
425
605+
45.26 ppb
0
55
71
86
201
201+
1.89 ppb
0
36
76
186
605
1005+
4.70 ppb
0
54
101
361
1250
2050+
0.14 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Warrenville, Illinois
Warrenville, Illinois
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AQI 44
Good
6.29μg/m³
PM2.5
27.10μg/m³
PM10
47.43ppb
O3
1.90ppb
SO2
4.73ppb
NO2
0.14ppm
CO
AQI 41
Good
6.28μg/m³
PM2.5
27.79μg/m³
PM10
44.41ppb
O3
1.91ppb
SO2
4.71ppb
NO2
0.14ppm
CO
AQI 46
Good
6.41μg/m³
PM2.5
27.07μg/m³
PM10
49.71ppb
O3
1.91ppb
SO2
4.75ppb
NO2
0.14ppm
CO
AQI 39
Good
6.21μg/m³
PM2.5
27.14μg/m³
PM10
41.70ppb
O3
1.83ppb
SO2
4.65ppb
NO2
0.14ppm
CO
AQI 50
Good
6.38μg/m³
PM2.5
25.64μg/m³
PM10
54.00ppb
O3
1.92ppb
SO2
4.72ppb
NO2
0.14ppm
CO
AQI 44
Good
6.50μg/m³
PM2.5
27.86μg/m³
PM10
46.74ppb
O3
1.88ppb
SO2
4.69ppb
NO2
0.14ppm
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 Warrenville, Illinois is updated every hour for accuracy.
In the past 24 hours, the air quality in Warrenville, Illinois was at its worst at 03:00:00 on 2026-07-23.
In the last 24 hours, the best air quality in Warrenville, Illinois was observed at 07:00:00 on 2026-07-23.
As of now, the AQI in Warrenville, Illinois is 42, indicating Good conditions.
Warrenville, Illinois air has the highest levels of O3.
Poor air quality in Warrenville, Illinois means it's advisable to stay indoors and wear a mask for your protection.
PM2.5 levels in Warrenville, Illinois are currently 5.974 μg/m3.
The PM10 concentration in Warrenville, Illinois is 26.201 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Warrenville, Illinois is 0.143 ppm.
Currently, Warrenville, Illinois has a sulfur dioxide (SO2) concentration of 1.886 ppb.
The current ozone (O3) level in Warrenville, Illinois at the moment is 45.262 ppm.
Nitrogen dioxide (NO2) level in Warrenville, Illinois at the moment is 4.699 ppb.
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