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)
18
Good
Elgin, Illinois
Last updated: ... (Local time)
Good
Fine
Moderate
Poor
Very poor
Hazardous
3.18 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
13.88 μg/m³
0
55
155
255
425
605+
19.05 ppb
0
55
71
86
201
201+
0.58 ppb
0
36
76
186
605
1005+
2.99 ppb
0
54
101
361
1250
2050+
0.18 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Moderate
Elgin, Illinois
Elgin, Illinois
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AQI 18
Good
3.20μg/m³
PM2.5
13.93μg/m³
PM10
18.97ppb
O3
0.61ppb
SO2
4.55ppb
NO2
0.18ppm
CO
AQI 22
Good
3.70μg/m³
PM2.5
16.30μg/m³
PM10
17.21ppb
O3
0.62ppb
SO2
4.32ppb
NO2
0.18ppm
CO
AQI 18
Good
3.19μg/m³
PM2.5
13.56μg/m³
PM10
18.67ppb
O3
0.62ppb
SO2
4.52ppb
NO2
0.18ppm
CO
AQI 19
Good
3.11μg/m³
PM2.5
12.97μg/m³
PM10
20.15ppb
O3
0.61ppb
SO2
4.67ppb
NO2
0.18ppm
CO
AQI 18
Good
3.43μg/m³
PM2.5
14.49μg/m³
PM10
18.95ppb
O3
0.60ppb
SO2
4.69ppb
NO2
0.18ppm
CO
AQI 22
Good
3.70μg/m³
PM2.5
16.30μg/m³
PM10
17.21ppb
O3
0.62ppb
SO2
4.32ppb
NO2
0.18ppm
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 12:00:00 on 2025-09-05.
In the last 24 hours, the best air quality in Elgin, Illinois was observed at 06:00:00 on 2025-09-06.
As of now, the AQI in Elgin, Illinois is 22, indicating Good conditions.
Elgin, Illinois air has the highest levels of O3.
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 3.181 μg/m3.
The PM10 concentration in Elgin, Illinois is 13.896 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Elgin, Illinois is 0.146 ppm.
Currently, Elgin, Illinois has a sulfur dioxide (SO2) concentration of 2.069 ppb.
The current ozone (O3) level in Elgin, Illinois at the moment is 24.013 ppm.
Nitrogen dioxide (NO2) level in Elgin, Illinois at the moment is 6.257 ppb.
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