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)
58
Moderate
Niles, Illinois
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
13.00 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
54.63 μg/m³
0
55
155
255
425
605+
42.64 ppb
0
55
71
86
201
201+
1.85 ppb
0
36
76
186
605
1005+
6.46 ppb
0
54
101
361
1250
2050+
0.26 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Moderate
Niles, Illinois
Niles, Illinois
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AQI 67
Moderate
17.55μg/m³
PM2.5
64.46μg/m³
PM10
6.73ppb
O3
0.96ppb
SO2
20.11ppb
NO2
0.43ppm
CO
AQI 67
Moderate
18.01μg/m³
PM2.5
71.78μg/m³
PM10
6.75ppb
O3
0.95ppb
SO2
19.63ppb
NO2
0.43ppm
CO
AQI 66
Moderate
17.32μg/m³
PM2.5
58.32μg/m³
PM10
5.98ppb
O3
1.03ppb
SO2
19.68ppb
NO2
0.43ppm
CO
AQI 67
Moderate
18.49μg/m³
PM2.5
71.97μg/m³
PM10
7.36ppb
O3
1.05ppb
SO2
20.04ppb
NO2
0.43ppm
CO
AQI 67
Moderate
18.33μg/m³
PM2.5
67.87μg/m³
PM10
7.87ppb
O3
1.01ppb
SO2
21.23ppb
NO2
0.43ppm
CO
AQI 64
Moderate
16.01μg/m³
PM2.5
60.88μg/m³
PM10
5.29ppb
O3
0.90ppb
SO2
18.78ppb
NO2
0.43ppm
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 2026-10-21.
In the last 24 hours, the best air quality in Niles, Illinois was observed at 03:00:00 on 2026-10-22.
As of now, the AQI in Niles, Illinois is 66, indicating Moderate 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 17.451 μg/m3.
The PM10 concentration in Niles, Illinois is 65.664 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Niles, Illinois is 0.429 ppm.
Currently, Niles, Illinois has a sulfur dioxide (SO2) concentration of 0.959 ppb.
The current ozone (O3) level in Niles, Illinois at the moment is 6.789 ppm.
Nitrogen dioxide (NO2) level in Niles, Illinois at the moment is 20.138 ppb.
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