Stay updated with real-time air quality in Arlington Heights, 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
Arlington Heights, Illinois
Last updated: ... (Local time)
Good
Fine
Moderate
Poor
Very poor
Hazardous
6.51 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
27.47 μg/m³
0
55
155
255
425
605+
15.67 ppb
0
55
71
86
201
201+
2.00 ppb
0
36
76
186
605
1005+
16.78 ppb
0
54
101
361
1250
2050+
0.21 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Moderate
Arlington Heights, Illinois
Arlington Heights, Illinois
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AQI 27
Good
5.18μg/m³
PM2.5
17.27μg/m³
PM10
11.40ppb
O3
0.91ppb
SO2
16.38ppb
NO2
0.23ppm
CO
AQI 38
Good
6.66μg/m³
PM2.5
27.53μg/m³
PM10
10.63ppb
O3
0.91ppb
SO2
14.21ppb
NO2
0.24ppm
CO
AQI 38
Good
6.75μg/m³
PM2.5
28.66μg/m³
PM10
10.74ppb
O3
0.91ppb
SO2
14.20ppb
NO2
0.24ppm
CO
AQI 27
Good
4.78μg/m³
PM2.5
20.75μg/m³
PM10
16.12ppb
O3
0.91ppb
SO2
14.28ppb
NO2
0.23ppm
CO
AQI 38
Good
6.52μg/m³
PM2.5
26.11μg/m³
PM10
10.52ppb
O3
0.91ppb
SO2
14.21ppb
NO2
0.24ppm
CO
AQI 27
Good
4.74μg/m³
PM2.5
20.84μg/m³
PM10
14.68ppb
O3
0.91ppb
SO2
14.32ppb
NO2
0.23ppm
CO
Air quality data and pollutant measurements for Illinois, USA adhere to strict US EPA standards. The data is collected from multiple reliable sources, including satellites and ground-based monitoring stations. This data is further analyzed and enhanced using machine learning and advanced algorithms that factor in elements such as traffic and population density, ensuring accurate and reliable results.
Source: Ambee Data Sources
The air quality for Arlington Heights, Illinois is updated every hour.
The worst air quality in Arlington Heights, Illinois in the last 24 hours was observed at 04:00:00 on 2025-09-09.
In the last 24 hrs, the best air quality in Arlington Heights, Illinois was observed at 06:00:00 on 2025-09-08.
The current air quality in Arlington Heights, Illinois is 27, categorized as Good based on real-time data.
The most common pollutant in Arlington Heights, Illinois is PM2.5.
If the air quality in Arlington Heights, Illinois is poor, consider staying indoors and wearing a mask to protect yourself.
The current PM2.5 concentration at Arlington Heights, Illinois is 5.084 μg/m3.
The current PM10 concentration at Arlington Heights, Illinois is 17.184 μg/m3.
The current carbon monoxide (CO) concentration at Arlington Heights, Illinois is 0.302 ppm.
The current sulfur dioxide (SO2) concentration at Arlington Heights, Illinois is 1.003 ppb.
The current ozone (O3) concentration at Arlington Heights, Illinois is 12.611 ppm.
The current nitrogen dioxide (NO2) concentration at Arlington Heights, Illinois is 16.18 ppb.
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