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)
38
Good
Deerfield, Illinois
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
6.55 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
21.16 μg/m³
0
55
155
255
425
605+
24.30 ppb
0
55
71
86
201
201+
1.02 ppb
0
36
76
186
605
1005+
15.33 ppb
0
54
101
361
1250
2050+
0.26 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Deerfield, Illinois
Deerfield, Illinois
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AQI 22
Good
4.06μg/m³
PM2.5
9.78μg/m³
PM10
20.95ppb
O3
1.60ppb
SO2
4.64ppb
NO2
0.17ppm
CO
AQI 22
Good
4.23μg/m³
PM2.5
11.17μg/m³
PM10
20.68ppb
O3
1.61ppb
SO2
4.71ppb
NO2
0.17ppm
CO
AQI 33
Good
5.70μg/m³
PM2.5
22.91μg/m³
PM10
19.39ppb
O3
1.65ppb
SO2
5.06ppb
NO2
0.17ppm
CO
AQI 27
Good
4.66μg/m³
PM2.5
15.42μg/m³
PM10
20.26ppb
O3
1.58ppb
SO2
4.61ppb
NO2
0.18ppm
CO
AQI 27
Good
4.55μg/m³
PM2.5
11.97μg/m³
PM10
19.13ppb
O3
1.61ppb
SO2
4.78ppb
NO2
0.16ppm
CO
AQI 33
Good
5.69μg/m³
PM2.5
23.26μg/m³
PM10
19.47ppb
O3
1.65ppb
SO2
5.04ppb
NO2
0.17ppm
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 04:00:00 on 2025-10-25.
In the last 24 hours, the best air quality in Deerfield, Illinois was observed at 01:00:00 on 2025-10-25.
As of now, the AQI in Deerfield, Illinois is 27, 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 4.717 μg/m3.
The PM10 concentration in Deerfield, Illinois is 14.998 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Deerfield, Illinois is 0.172 ppm.
Currently, Deerfield, Illinois has a sulfur dioxide (SO2) concentration of 1.617 ppb.
The current ozone (O3) level in Deerfield, Illinois at the moment is 20.478 ppm.
Nitrogen dioxide (NO2) level in Deerfield, Illinois at the moment is 4.809 ppb.
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