Stay updated with real-time air quality in Bellefontaine Neighbors, Missouri 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)
27
Good
Bellefontaine Neighbors, Missouri
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
4.96 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
19.87 μg/m³
0
55
155
255
425
605+
19.90 ppb
0
55
71
86
201
201+
0.58 ppb
0
36
76
186
605
1005+
4.67 ppb
0
54
101
361
1250
2050+
0.13 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Bellefontaine Neighbors, Missouri
Bellefontaine Neighbors, Missouri
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AQI 22
Good
3.79μg/m³
PM2.5
17.72μg/m³
PM10
20.75ppb
O3
0.57ppb
SO2
4.96ppb
NO2
0.14ppm
CO
AQI 33
Good
6.07μg/m³
PM2.5
24.85μg/m³
PM10
19.89ppb
O3
0.57ppb
SO2
4.96ppb
NO2
0.16ppm
CO
AQI 22
Good
3.90μg/m³
PM2.5
18.09μg/m³
PM10
20.33ppb
O3
0.56ppb
SO2
5.04ppb
NO2
0.15ppm
CO
AQI 33
Good
5.59μg/m³
PM2.5
21.97μg/m³
PM10
19.31ppb
O3
0.58ppb
SO2
4.75ppb
NO2
0.13ppm
CO
AQI 27
Good
4.77μg/m³
PM2.5
21.17μg/m³
PM10
20.18ppb
O3
0.53ppb
SO2
5.09ppb
NO2
0.17ppm
CO
AQI 22
Good
4.03μg/m³
PM2.5
17.92μg/m³
PM10
20.09ppb
O3
0.55ppb
SO2
5.30ppb
NO2
0.18ppm
CO
Air quality measurements for Missouri, 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 Bellefontaine Neighbors, Missouri is updated on an hourly basis.
The worst air quality in Bellefontaine Neighbors, Missouri was recorded at 05:00:00 on 2026-06-07.
The best air quality in Bellefontaine Neighbors, Missouri was recorded at 10:00:00 on 2026-06-08.
The real-time air quality index in Bellefontaine Neighbors, Missouri is 27, currently categorized as Good.
The most common pollutant in Bellefontaine Neighbors, Missouri is PM2.5.
If the air quality in Bellefontaine Neighbors, Missouri is poor, limit outdoor activities and use a mask to safeguard your health.
The measured PM2.5 levels in Bellefontaine Neighbors, Missouri at present are 4.96 μg/m3.
The current PM10 levels in Bellefontaine Neighbors, Missouri are 19.869 μg/m3.
The current carbon monoxide (CO) level in Bellefontaine Neighbors, Missouri is 0.127 ppm.
The current sulfur dioxide (SO2) levels in Bellefontaine Neighbors, Missouri are 0.577 ppb.
The current ozone (O3) levels at Bellefontaine Neighbors, Missouri is 19.902 ppm.
The current nitrogen dioxide (NO2) levels at Bellefontaine Neighbors, Missouri is 4.668 ppb.
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