Stay updated with real-time air quality in Elgin, 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)
137
Unhealthy for sensitive groups
Elgin, Illinois
Last updated: ... (Local time)
Good
Fine
Moderate
Poor
Very poor
Hazardous
49.55 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
223.28 μg/m³
0
55
155
255
425
605+
35.92 ppb
0
55
71
86
201
201+
0.34 ppb
0
36
76
186
605
1005+
10.39 ppb
0
54
101
361
1250
2050+
0.31 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
High
Elgin, Illinois
Elgin, Illinois
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AQI 137
Unhealthy for sensitive groups
49.57μg/m³
PM2.5
223.38μg/m³
PM10
35.84ppb
O3
0.34ppb
SO2
10.36ppb
NO2
0.31ppm
CO
AQI 124
Unhealthy for sensitive groups
43.03μg/m³
PM2.5
201.79μg/m³
PM10
28.99ppb
O3
0.39ppb
SO2
10.30ppb
NO2
0.31ppm
CO
AQI 129
Unhealthy for sensitive groups
47.40μg/m³
PM2.5
212.49μg/m³
PM10
34.81ppb
O3
0.35ppb
SO2
10.28ppb
NO2
0.31ppm
CO
AQI 129
Unhealthy for sensitive groups
46.77μg/m³
PM2.5
209.81μg/m³
PM10
36.80ppb
O3
0.34ppb
SO2
11.02ppb
NO2
0.31ppm
CO
AQI 117
Unhealthy for sensitive groups
40.33μg/m³
PM2.5
187.94μg/m³
PM10
29.21ppb
O3
0.32ppb
SO2
10.73ppb
NO2
0.31ppm
CO
AQI 124
Unhealthy for sensitive groups
43.03μg/m³
PM2.5
201.79μg/m³
PM10
28.99ppb
O3
0.39ppb
SO2
10.30ppb
NO2
0.31ppm
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 Elgin, Illinois is updated every hour for accuracy.
In the past 24 hours, the air quality in Elgin, Illinois was at its worst at 10:00:00 on 2025-06-05.
In the last 24 hours, the best air quality in Elgin, Illinois was observed at 08:00:00 on 2025-06-05.
As of now, the AQI in Elgin, Illinois is 137, indicating Unhealthy for Sensitive Groups conditions.
Elgin, Illinois air has the highest levels of PM2.5.
Poor air quality in Elgin, Illinois means it's advisable to stay indoors and wear a mask for your protection.
PM2.5 levels in Elgin, Illinois are currently 49.55 μg/m3.
The PM10 concentration in Elgin, Illinois is 223.276 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Elgin, Illinois is 0.311 ppm.
Currently, Elgin, Illinois has a sulfur dioxide (SO2) concentration of 0.335 ppb.
The current ozone (O3) level in Elgin, Illinois at the moment is 35.922 ppm.
Nitrogen dioxide (NO2) level in Elgin, Illinois at the moment is 10.387 ppb.
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