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

Good
Fine
Moderate
Poor
Very poor
Hazardous
6.69 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
26.03 μg/m³
0
55
155
255
425
605+
26.63 ppb
0
55
71
86
201
201+
0.43 ppb
0
36
76
186
605
1005+
2.94 ppb
0
54
101
361
1250
2050+
0.25 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
High
Niles, Illinois
Niles, Illinois
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AQI 38
Good
7.48μg/m³
PM2.5
29.87μg/m³
PM10
24.33ppb
O3
0.38ppb
SO2
2.87ppb
NO2
0.18ppm
CO
AQI 44
Good
7.57μg/m³
PM2.5
31.93μg/m³
PM10
22.01ppb
O3
0.39ppb
SO2
2.83ppb
NO2
0.18ppm
CO
AQI 38
Good
7.21μg/m³
PM2.5
28.36μg/m³
PM10
26.22ppb
O3
0.39ppb
SO2
3.01ppb
NO2
0.19ppm
CO
AQI 38
Good
7.33μg/m³
PM2.5
31.16μg/m³
PM10
25.84ppb
O3
0.39ppb
SO2
3.01ppb
NO2
0.19ppm
CO
AQI 44
Good
7.54μg/m³
PM2.5
32.12μg/m³
PM10
22.27ppb
O3
0.39ppb
SO2
2.84ppb
NO2
0.18ppm
CO
AQI 38
Good
7.47μg/m³
PM2.5
28.78μg/m³
PM10
25.28ppb
O3
0.38ppb
SO2
2.84ppb
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 Niles, Illinois is updated every hour for accuracy.
In the past 24 hours, the air quality in Niles, Illinois was at its worst at 08:00:00 on 2026-04-27.
In the last 24 hours, the best air quality in Niles, Illinois was observed at 03:00:00 on 2026-04-27.
As of now, the AQI in Niles, Illinois is 44, indicating Good conditions.
Niles, Illinois air has the highest levels of PM2.5.
Poor air quality in Niles, Illinois means it's advisable to stay indoors and wear a mask for your protection.
PM2.5 levels in Niles, Illinois are currently 7.554 μg/m3.
The PM10 concentration in Niles, Illinois is 31.029 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Niles, Illinois is 0.185 ppm.
Currently, Niles, Illinois has a sulfur dioxide (SO2) concentration of 0.385 ppb.
The current ozone (O3) level in Niles, Illinois at the moment is 23.676 ppm.
Nitrogen dioxide (NO2) level in Niles, Illinois at the moment is 2.849 ppb.
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