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)
39
Good
Arlington Heights, Illinois
Last updated: ... (Local time)
Good
Fine
Moderate
Poor
Very poor
Hazardous
4.83 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
22.21 μg/m³
0
55
155
255
425
605+
41.87 ppb
0
55
71
86
201
201+
0.38 ppb
0
36
76
186
605
1005+
6.53 ppb
0
54
101
361
1250
2050+
0.33 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Arlington Heights, Illinois
Arlington Heights, Illinois
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AQI 50
Good
6.23μg/m³
PM2.5
27.61μg/m³
PM10
54.14ppb
O3
2.43ppb
SO2
1.74ppb
NO2
0.17ppm
CO
AQI 41
Good
5.12μg/m³
PM2.5
22.15μg/m³
PM10
43.63ppb
O3
2.68ppb
SO2
1.96ppb
NO2
0.18ppm
CO
AQI 41
Good
5.43μg/m³
PM2.5
23.55μg/m³
PM10
43.81ppb
O3
2.69ppb
SO2
1.95ppb
NO2
0.18ppm
CO
AQI 48
Good
5.72μg/m³
PM2.5
29.82μg/m³
PM10
52.44ppb
O3
2.51ppb
SO2
1.76ppb
NO2
0.17ppm
CO
AQI 40
Good
4.72μg/m³
PM2.5
20.42μg/m³
PM10
43.37ppb
O3
2.67ppb
SO2
1.97ppb
NO2
0.18ppm
CO
AQI 39
Good
4.38μg/m³
PM2.5
27.31μg/m³
PM10
42.42ppb
O3
2.38ppb
SO2
1.79ppb
NO2
0.17ppm
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 10:00:00 on 2025-07-18.
In the last 24 hrs, the best air quality in Arlington Heights, Illinois was observed at 12:00:00 on 2025-07-18.
The current air quality in Arlington Heights, Illinois is 58, categorized as Moderate based on real-time data.
The most common pollutant in Arlington Heights, Illinois is O3.
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 8.52 μg/m3.
The current PM10 concentration at Arlington Heights, Illinois is 36.505 μg/m3.
The current carbon monoxide (CO) concentration at Arlington Heights, Illinois is 0.168 ppm.
The current sulfur dioxide (SO2) concentration at Arlington Heights, Illinois is 2.288 ppb.
The current ozone (O3) concentration at Arlington Heights, Illinois is 56.998 ppm.
The current nitrogen dioxide (NO2) concentration at Arlington Heights, Illinois is 2.735 ppb.
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