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

Good
Fine
Moderate
Poor
Very poor
Hazardous
3.40 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
14.59 μg/m³
0
55
155
255
425
605+
27.04 ppb
0
55
71
86
201
201+
0.31 ppb
0
36
76
186
605
1005+
3.02 ppb
0
54
101
361
1250
2050+
0.18 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Elmhurst, Illinois
Elmhurst, Illinois
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AQI 25
Good
3.35μg/m³
PM2.5
14.60μg/m³
PM10
27.41ppb
O3
0.32ppb
SO2
2.89ppb
NO2
0.15ppm
CO
AQI 22
Good
3.75μg/m³
PM2.5
16.30μg/m³
PM10
23.69ppb
O3
0.31ppb
SO2
3.23ppb
NO2
0.16ppm
CO
AQI 25
Good
3.55μg/m³
PM2.5
15.53μg/m³
PM10
26.80ppb
O3
0.31ppb
SO2
2.97ppb
NO2
0.17ppm
CO
AQI 26
Good
3.12μg/m³
PM2.5
11.98μg/m³
PM10
27.89ppb
O3
0.33ppb
SO2
3.31ppb
NO2
0.15ppm
CO
AQI 27
Good
3.20μg/m³
PM2.5
13.88μg/m³
PM10
28.92ppb
O3
0.32ppb
SO2
2.82ppb
NO2
0.15ppm
CO
AQI 23
Good
3.67μg/m³
PM2.5
15.93μg/m³
PM10
24.50ppb
O3
0.31ppb
SO2
3.24ppb
NO2
0.16ppm
CO
Air quality data and pollutant measurements for Illinois, USA adhere to strict US EPA standards. The data is collected from multiple reliable sources, including satellites and ground-based monitoring stations. This data is further analyzed and enhanced using machine learning and advanced algorithms that factor in elements such as traffic and population density, ensuring accurate and reliable results.
Source: Ambee Data Sources
The air quality for Elmhurst, Illinois is updated every hour.
The worst air quality in Elmhurst, Illinois in the last 24 hours was observed at 09:00:00 on 2026-06-13.
In the last 24 hrs, the best air quality in Elmhurst, Illinois was observed at 10:00:00 on 2026-06-14.
The current air quality in Elmhurst, Illinois is 25, categorized as Good based on real-time data.
The most common pollutant in Elmhurst, Illinois is O3.
If the air quality in Elmhurst, Illinois is poor, consider staying indoors and wearing a mask to protect yourself.
The current PM2.5 concentration at Elmhurst, Illinois is 3.404 μg/m3.
The current PM10 concentration at Elmhurst, Illinois is 14.591 μg/m3.
The current carbon monoxide (CO) concentration at Elmhurst, Illinois is 0.178 ppm.
The current sulfur dioxide (SO2) concentration at Elmhurst, Illinois is 0.311 ppb.
The current ozone (O3) concentration at Elmhurst, Illinois is 27.041 ppm.
The current nitrogen dioxide (NO2) concentration at Elmhurst, Illinois is 3.016 ppb.
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