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)
19
Good
Deerfield, Illinois
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
2.38 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
7.05 μg/m³
0
55
155
255
425
605+
21.22 ppb
0
55
71
86
201
201+
0.38 ppb
0
36
76
186
605
1005+
6.08 ppb
0
54
101
361
1250
2050+
0.16 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Deerfield, Illinois
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AQI 20
Good
2.10μg/m³
PM2.5
4.11μg/m³
PM10
21.73ppb
O3
0.39ppb
SO2
6.17ppb
NO2
0.16ppm
CO
AQI 20
Good
2.17μg/m³
PM2.5
4.88μg/m³
PM10
21.54ppb
O3
0.38ppb
SO2
6.18ppb
NO2
0.16ppm
CO
AQI 19
Good
2.75μg/m³
PM2.5
11.12μg/m³
PM10
19.84ppb
O3
0.36ppb
SO2
5.93ppb
NO2
0.15ppm
CO
AQI 20
Good
2.41μg/m³
PM2.5
7.75μg/m³
PM10
21.89ppb
O3
0.38ppb
SO2
6.21ppb
NO2
0.16ppm
CO
AQI 23
Good
2.14μg/m³
PM2.5
7.99μg/m³
PM10
24.93ppb
O3
0.32ppb
SO2
6.40ppb
NO2
0.16ppm
CO
AQI 19
Good
2.77μg/m³
PM2.5
11.37μg/m³
PM10
19.94ppb
O3
0.36ppb
SO2
5.98ppb
NO2
0.15ppm
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 11:00:00 on 2026-03-10.
In the last 24 hours, the best air quality in Deerfield, Illinois was observed at 05:00:00 on 2026-03-11.
As of now, the AQI in Deerfield, Illinois is 19, indicating Good conditions.
Deerfield, Illinois air has the highest levels of O3.
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 2.379 μg/m3.
The PM10 concentration in Deerfield, Illinois is 7.053 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Deerfield, Illinois is 0.156 ppm.
Currently, Deerfield, Illinois has a sulfur dioxide (SO2) concentration of 0.377 ppb.
The current ozone (O3) level in Deerfield, Illinois at the moment is 21.218 ppm.
Nitrogen dioxide (NO2) level in Deerfield, Illinois at the moment is 6.083 ppb.
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