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)
33
Good
Niles, Illinois
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
6.13 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
28.64 μg/m³
0
55
155
255
425
605+
31.14 ppb
0
55
71
86
201
201+
0.97 ppb
0
36
76
186
605
1005+
14.70 ppb
0
54
101
361
1250
2050+
0.27 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Moderate
Niles, Illinois
Niles, Illinois
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AQI 33
Good
6.26μg/m³
PM2.5
25.61μg/m³
PM10
34.27ppb
O3
0.94ppb
SO2
6.09ppb
NO2
0.18ppm
CO
AQI 33
Good
6.45μg/m³
PM2.5
27.09μg/m³
PM10
32.79ppb
O3
0.94ppb
SO2
6.08ppb
NO2
0.18ppm
CO
AQI 33
Good
5.68μg/m³
PM2.5
23.23μg/m³
PM10
35.84ppb
O3
0.96ppb
SO2
6.21ppb
NO2
0.18ppm
CO
AQI 33
Good
5.59μg/m³
PM2.5
23.03μg/m³
PM10
34.91ppb
O3
0.96ppb
SO2
6.20ppb
NO2
0.18ppm
CO
AQI 33
Good
5.80μg/m³
PM2.5
22.84μg/m³
PM10
34.09ppb
O3
0.96ppb
SO2
6.13ppb
NO2
0.18ppm
CO
AQI 38
Good
6.75μg/m³
PM2.5
28.86μg/m³
PM10
33.77ppb
O3
0.93ppb
SO2
6.02ppb
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 03:00:00 on 2026-10-07.
In the last 24 hours, the best air quality in Niles, Illinois was observed at 04:00:00 on 2026-10-07.
As of now, the AQI in Niles, Illinois is 33, 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 6.254 μg/m3.
The PM10 concentration in Niles, Illinois is 25.619 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Niles, Illinois is 0.183 ppm.
Currently, Niles, Illinois has a sulfur dioxide (SO2) concentration of 0.944 ppb.
The current ozone (O3) level in Niles, Illinois at the moment is 34.019 ppm.
Nitrogen dioxide (NO2) level in Niles, Illinois at the moment is 6.084 ppb.
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