Stay updated with real-time air quality in Deerfield, 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)
33
Good
Deerfield, Illinois
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
5.71 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
20.60 μg/m³
0
55
155
255
425
605+
24.91 ppb
0
55
71
86
201
201+
1.47 ppb
0
36
76
186
605
1005+
9.35 ppb
0
54
101
361
1250
2050+
0.28 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Deerfield, Illinois
Deerfield, Illinois
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AQI 27
Good
5.05μg/m³
PM2.5
15.33μg/m³
PM10
24.55ppb
O3
1.39ppb
SO2
11.78ppb
NO2
0.23ppm
CO
AQI 27
Good
5.21μg/m³
PM2.5
16.63μg/m³
PM10
24.24ppb
O3
1.39ppb
SO2
11.79ppb
NO2
0.23ppm
CO
AQI 38
Good
7.00μg/m³
PM2.5
29.34μg/m³
PM10
22.49ppb
O3
1.41ppb
SO2
12.00ppb
NO2
0.23ppm
CO
AQI 33
Good
5.95μg/m³
PM2.5
22.14μg/m³
PM10
23.57ppb
O3
1.36ppb
SO2
11.59ppb
NO2
0.23ppm
CO
AQI 33
Good
5.66μg/m³
PM2.5
22.76μg/m³
PM10
22.45ppb
O3
1.31ppb
SO2
11.72ppb
NO2
0.23ppm
CO
AQI 38
Good
6.62μg/m³
PM2.5
27.71μg/m³
PM10
22.08ppb
O3
1.40ppb
SO2
11.95ppb
NO2
0.23ppm
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 Deerfield, Illinois is updated every hour for accuracy.
In the past 24 hours, the air quality in Deerfield, Illinois was at its worst at 10:00:00 on 2026-01-24.
In the last 24 hours, the best air quality in Deerfield, Illinois was observed at 08:00:00 on 2026-01-24.
As of now, the AQI in Deerfield, Illinois is 33, indicating Good conditions.
Deerfield, Illinois air has the highest levels of PM2.5.
Poor air quality in Deerfield, Illinois means it's advisable to stay indoors and wear a mask for your protection.
PM2.5 levels in Deerfield, Illinois are currently 5.761 μg/m3.
The PM10 concentration in Deerfield, Illinois is 20.561 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Deerfield, Illinois is 0.227 ppm.
Currently, Deerfield, Illinois has a sulfur dioxide (SO2) concentration of 1.396 ppb.
The current ozone (O3) level in Deerfield, Illinois at the moment is 23.743 ppm.
Nitrogen dioxide (NO2) level in Deerfield, Illinois at the moment is 11.868 ppb.
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