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)
39
Good
Elgin, Illinois
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
4.61 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
20.07 μg/m³
0
55
155
255
425
605+
41.62 ppb
0
55
71
86
201
201+
0.72 ppb
0
36
76
186
605
1005+
5.78 ppb
0
54
101
361
1250
2050+
0.16 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Moderate
Elgin, Illinois
Elgin, Illinois
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AQI 38
Good
6.93μg/m³
PM2.5
30.57μg/m³
PM10
8.38ppb
O3
1.02ppb
SO2
10.18ppb
NO2
0.23ppm
CO
AQI 38
Good
6.71μg/m³
PM2.5
30.76μg/m³
PM10
17.06ppb
O3
1.07ppb
SO2
12.11ppb
NO2
0.23ppm
CO
AQI 44
Good
8.03μg/m³
PM2.5
35.25μg/m³
PM10
10.63ppb
O3
1.04ppb
SO2
10.37ppb
NO2
0.23ppm
CO
AQI 33
Good
6.47μg/m³
PM2.5
28.23μg/m³
PM10
13.32ppb
O3
1.00ppb
SO2
10.56ppb
NO2
0.23ppm
CO
AQI 49
Good
8.93μg/m³
PM2.5
40.73μg/m³
PM10
18.28ppb
O3
0.96ppb
SO2
10.97ppb
NO2
0.23ppm
CO
AQI 38
Good
6.71μg/m³
PM2.5
30.76μg/m³
PM10
17.06ppb
O3
1.07ppb
SO2
12.11ppb
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 Elgin, Illinois is updated every hour for accuracy.
In the past 24 hours, the air quality in Elgin, Illinois was at its worst at 02:00:00 on 2026-10-06.
In the last 24 hours, the best air quality in Elgin, Illinois was observed at 03:00:00 on 2026-10-06.
As of now, the AQI in Elgin, Illinois is 38, indicating Good 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 6.889 μg/m3.
The PM10 concentration in Elgin, Illinois is 30.367 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Elgin, Illinois is 0.229 ppm.
Currently, Elgin, Illinois has a sulfur dioxide (SO2) concentration of 1.021 ppb.
The current ozone (O3) level in Elgin, Illinois at the moment is 8.459 ppm.
Nitrogen dioxide (NO2) level in Elgin, Illinois at the moment is 10.184 ppb.
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