Stay updated with real-time air quality in Belleville, 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)
52
Moderate
Belleville, Illinois
Last updated: ... (Local time)
Good
Fine
Moderate
Poor
Very poor
Hazardous
10.11 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
49.13 μg/m³
0
55
155
255
425
605+
15.74 ppb
0
55
71
86
201
201+
0.51 ppb
0
36
76
186
605
1005+
17.00 ppb
0
54
101
361
1250
2050+
0.56 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
High
Belleville, Illinois
Belleville, Illinois
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AQI 54
Moderate
10.82μg/m³
PM2.5
44.97μg/m³
PM10
22.58ppb
O3
0.52ppb
SO2
10.13ppb
NO2
0.48ppm
CO
AQI 52
Moderate
10.35μg/m³
PM2.5
44.57μg/m³
PM10
22.77ppb
O3
0.46ppb
SO2
10.87ppb
NO2
0.48ppm
CO
AQI 54
Moderate
10.63μg/m³
PM2.5
29.10μg/m³
PM10
23.45ppb
O3
0.50ppb
SO2
10.95ppb
NO2
0.48ppm
CO
AQI 54
Moderate
10.63μg/m³
PM2.5
29.10μg/m³
PM10
23.45ppb
O3
0.50ppb
SO2
10.95ppb
NO2
0.48ppm
CO
AQI 52
Moderate
10.22μg/m³
PM2.5
43.28μg/m³
PM10
20.40ppb
O3
0.39ppb
SO2
12.15ppb
NO2
0.48ppm
CO
AQI 54
Moderate
11.07μg/m³
PM2.5
48.56μg/m³
PM10
14.07ppb
O3
0.29ppb
SO2
10.20ppb
NO2
0.49ppm
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 Belleville, Illinois is updated every hour for accuracy.
In the past 24 hours, the air quality in Belleville, Illinois was at its worst at 09:00:00 on 2025-06-05.
In the last 24 hours, the best air quality in Belleville, Illinois was observed at 10:00:00 on 2025-06-05.
As of now, the AQI in Belleville, Illinois is 52, indicating Moderate conditions.
Belleville, Illinois air has the highest levels of PM2.5.
Poor air quality in Belleville, Illinois means it's advisable to stay indoors and wear a mask for your protection.
PM2.5 levels in Belleville, Illinois are currently 10.108 μg/m3.
The PM10 concentration in Belleville, Illinois is 49.128 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Belleville, Illinois is 0.559 ppm.
Currently, Belleville, Illinois has a sulfur dioxide (SO2) concentration of 0.505 ppb.
The current ozone (O3) level in Belleville, Illinois at the moment is 15.74 ppm.
Nitrogen dioxide (NO2) level in Belleville, Illinois at the moment is 16.998 ppb.
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