Stay updated with real-time air quality in Plainfield, 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)
25
Good
Plainfield, Illinois
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
3.93 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
17.96 μg/m³
0
55
155
255
425
605+
26.80 ppb
0
55
71
86
201
201+
1.27 ppb
0
36
76
186
605
1005+
6.78 ppb
0
54
101
361
1250
2050+
0.14 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Plainfield, Illinois
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AQI 22
Good
4.06μg/m³
PM2.5
21.53μg/m³
PM10
20.67ppb
O3
1.25ppb
SO2
7.42ppb
NO2
0.14ppm
CO
AQI 26
Good
3.95μg/m³
PM2.5
17.44μg/m³
PM10
27.81ppb
O3
1.28ppb
SO2
6.46ppb
NO2
0.14ppm
CO
AQI 23
Good
3.73μg/m³
PM2.5
16.30μg/m³
PM10
25.37ppb
O3
1.27ppb
SO2
7.01ppb
NO2
0.14ppm
CO
AQI 24
Good
3.97μg/m³
PM2.5
18.52μg/m³
PM10
25.79ppb
O3
1.26ppb
SO2
7.02ppb
NO2
0.14ppm
CO
AQI 23
Good
3.72μg/m³
PM2.5
16.25μg/m³
PM10
25.33ppb
O3
1.27ppb
SO2
7.01ppb
NO2
0.14ppm
CO
AQI 28
Good
4.26μg/m³
PM2.5
25.01μg/m³
PM10
29.83ppb
O3
1.28ppb
SO2
6.03ppb
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 Plainfield, Illinois is updated every hour for accuracy.
In the past 24 hours, the air quality in Plainfield, Illinois was at its worst at 03:00:00 on 2026-01-23.
In the last 24 hours, the best air quality in Plainfield, Illinois was observed at 09:00:00 on 2026-01-23.
As of now, the AQI in Plainfield, Illinois is 25, indicating Good conditions.
Plainfield, Illinois air has the highest levels of O3.
Poor air quality in Plainfield, Illinois means it's advisable to stay indoors and wear a mask for your protection.
PM2.5 levels in Plainfield, Illinois are currently 3.927 μg/m3.
The PM10 concentration in Plainfield, Illinois is 17.959 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Plainfield, Illinois is 0.141 ppm.
Currently, Plainfield, Illinois has a sulfur dioxide (SO2) concentration of 1.268 ppb.
The current ozone (O3) level in Plainfield, Illinois at the moment is 26.798 ppm.
Nitrogen dioxide (NO2) level in Plainfield, Illinois at the moment is 6.784 ppb.
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