Stay updated with real-time air quality in Westmont, 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)
102
Unhealthy for sensitive groups
Westmont, Illinois
Last updated: ... (Local time)
Good
Fine
Moderate
Poor
Very poor
Hazardous
35.92 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
116.65 μg/m³
0
55
155
255
425
605+
47.53 ppb
0
55
71
86
201
201+
2.21 ppb
0
36
76
186
605
1005+
4.02 ppb
0
54
101
361
1250
2050+
0.26 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Westmont, Illinois
Westmont, Illinois
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AQI 86
Moderate
28.20μg/m³
PM2.5
121.18μg/m³
PM10
45.20ppb
O3
2.22ppb
SO2
3.93ppb
NO2
0.25ppm
CO
AQI 99
Moderate
34.67μg/m³
PM2.5
150.88μg/m³
PM10
43.72ppb
O3
2.08ppb
SO2
4.01ppb
NO2
0.25ppm
CO
AQI 94
Moderate
31.83μg/m³
PM2.5
129.22μg/m³
PM10
43.59ppb
O3
2.19ppb
SO2
3.87ppb
NO2
0.25ppm
CO
AQI 81
Moderate
24.85μg/m³
PM2.5
109.65μg/m³
PM10
46.69ppb
O3
2.26ppb
SO2
3.94ppb
NO2
0.24ppm
CO
AQI 88
Moderate
28.61μg/m³
PM2.5
117.96μg/m³
PM10
44.62ppb
O3
2.24ppb
SO2
3.88ppb
NO2
0.25ppm
CO
AQI 105
Unhealthy for sensitive groups
36.71μg/m³
PM2.5
163.25μg/m³
PM10
43.00ppb
O3
2.02ppb
SO2
4.07ppb
NO2
0.26ppm
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 Westmont, Illinois is updated every hour.
The worst air quality in Westmont, Illinois in the last 24 hours was observed at 11:00:00 on 2025-06-06.
In the last 24 hrs, the best air quality in Westmont, Illinois was observed at 12:00:00 on 2025-06-07.
The current air quality in Westmont, Illinois is 102, categorized as Unhealthy for Sensitive Groups based on real-time data.
The most common pollutant in Westmont, Illinois is PM2.5.
If the air quality in Westmont, Illinois is poor, consider staying indoors and wearing a mask to protect yourself.
The current PM2.5 concentration at Westmont, Illinois is 35.916 μg/m3.
The current PM10 concentration at Westmont, Illinois is 116.647 μg/m3.
The current carbon monoxide (CO) concentration at Westmont, Illinois is 0.255 ppm.
The current sulfur dioxide (SO2) concentration at Westmont, Illinois is 2.206 ppb.
The current ozone (O3) concentration at Westmont, Illinois is 47.534 ppm.
The current nitrogen dioxide (NO2) concentration at Westmont, Illinois is 4.024 ppb.
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