Stay updated with real-time air quality in Winfield, 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)
84
Moderate
Winfield, Illinois
Last updated: ... (Local time)
Good
Fine
Moderate
Poor
Very poor
Hazardous
26.99 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
118.55 μg/m³
0
55
155
255
425
605+
33.14 ppb
0
55
71
86
201
201+
0.29 ppb
0
36
76
186
605
1005+
6.51 ppb
0
54
101
361
1250
2050+
0.27 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Moderate
Winfield, Illinois
Winfield, Illinois
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AQI 82
Moderate
26.27μg/m³
PM2.5
113.94μg/m³
PM10
34.12ppb
O3
0.29ppb
SO2
6.26ppb
NO2
0.27ppm
CO
AQI 84
Moderate
27.08μg/m³
PM2.5
119.50μg/m³
PM10
32.32ppb
O3
0.29ppb
SO2
6.52ppb
NO2
0.27ppm
CO
AQI 84
Moderate
26.65μg/m³
PM2.5
116.74μg/m³
PM10
33.86ppb
O3
0.29ppb
SO2
6.51ppb
NO2
0.27ppm
CO
AQI 84
Moderate
27.25μg/m³
PM2.5
119.67μg/m³
PM10
33.93ppb
O3
0.28ppb
SO2
6.33ppb
NO2
0.27ppm
CO
AQI 84
Moderate
26.83μg/m³
PM2.5
118.78μg/m³
PM10
32.38ppb
O3
0.29ppb
SO2
6.53ppb
NO2
0.27ppm
CO
AQI 79
Moderate
24.42μg/m³
PM2.5
76.32μg/m³
PM10
39.47ppb
O3
0.28ppb
SO2
6.24ppb
NO2
0.26ppm
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 Winfield, Illinois is updated every hour for accuracy.
In the past 24 hours, the air quality in Winfield, Illinois was at its worst at 01:00:00 on 2025-06-07.
In the last 24 hours, the best air quality in Winfield, Illinois was observed at 09:00:00 on 2025-06-07.
As of now, the AQI in Winfield, Illinois is 84, indicating Moderate conditions.
Winfield, Illinois air has the highest levels of PM2.5.
Poor air quality in Winfield, Illinois means it's advisable to stay indoors and wear a mask for your protection.
PM2.5 levels in Winfield, Illinois are currently 26.992 μg/m3.
The PM10 concentration in Winfield, Illinois is 118.554 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Winfield, Illinois is 0.269 ppm.
Currently, Winfield, Illinois has a sulfur dioxide (SO2) concentration of 0.288 ppb.
The current ozone (O3) level in Winfield, Illinois at the moment is 33.136 ppm.
Nitrogen dioxide (NO2) level in Winfield, Illinois at the moment is 6.513 ppb.
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