Stay updated with real-time air quality in Naperville, 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)
16
Good
Naperville, Illinois
Last updated: ... (Local time)
Good
Fine
Moderate
Poor
Very poor
Hazardous
3.13 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
14.18 μg/m³
0
55
155
255
425
605+
12.36 ppb
0
55
71
86
201
201+
0.76 ppb
0
36
76
186
605
1005+
6.95 ppb
0
54
101
361
1250
2050+
0.14 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Moderate
Naperville, Illinois
Naperville, Illinois
Scroll To Air Quality MapLoading...
AQI 16
Good
3.12μg/m³
PM2.5
13.01μg/m³
PM10
13.98ppb
O3
0.74ppb
SO2
6.72ppb
NO2
0.14ppm
CO
AQI 16
Good
3.27μg/m³
PM2.5
13.76μg/m³
PM10
12.18ppb
O3
0.76ppb
SO2
7.00ppb
NO2
0.14ppm
CO
AQI 16
Good
3.14μg/m³
PM2.5
13.22μg/m³
PM10
9.00ppb
O3
0.75ppb
SO2
7.25ppb
NO2
0.14ppm
CO
AQI 16
Good
3.43μg/m³
PM2.5
14.12μg/m³
PM10
14.27ppb
O3
0.76ppb
SO2
6.95ppb
NO2
0.14ppm
CO
AQI 16
Good
3.15μg/m³
PM2.5
13.30μg/m³
PM10
12.94ppb
O3
0.75ppb
SO2
6.85ppb
NO2
0.14ppm
CO
AQI 16
Good
3.36μg/m³
PM2.5
13.80μg/m³
PM10
14.51ppb
O3
0.76ppb
SO2
6.94ppb
NO2
0.13ppm
CO
Air quality measurements for Illinois, USA meet strict US EPA standards. These measurements are collected from reliable sources, including satellites and ground-based monitoring systems. Advanced algorithms and machine learning techniques are applied to the data, factoring in variables such as traffic and population density, to ensure precision and reliability.
Source: Ambee Data Sources
Air quality data for Naperville, Illinois is updated on an hourly basis.
The worst air quality in Naperville, Illinois was recorded at 01:00:00 on 2025-09-05.
The best air quality in Naperville, Illinois was recorded at 10:00:00 on 2025-09-06.
The real-time air quality index in Naperville, Illinois is 16, currently categorized as Good.
The most common pollutant in Naperville, Illinois is PM2.5.
If the air quality in Naperville, Illinois is poor, limit outdoor activities and use a mask to safeguard your health.
The measured PM2.5 levels in Naperville, Illinois at present are 3.193 μg/m3.
The current PM10 levels in Naperville, Illinois are 13.878 μg/m3.
The current carbon monoxide (CO) level in Naperville, Illinois is 0.143 ppm.
The current sulfur dioxide (SO2) levels in Naperville, Illinois are 0.749 ppb.
The current ozone (O3) levels at Naperville, Illinois is 14.336 ppm.
The current nitrogen dioxide (NO2) levels at Naperville, Illinois is 6.593 ppb.
All Rights Reserved © Ambee Inc. 2025