Stay updated with real-time air quality in South Bend, Indiana 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)
43
Good
South Bend, Indiana
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
2.83 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
12.28 μg/m³
0
55
155
255
425
605+
46.00 ppb
0
55
71
86
201
201+
0.49 ppb
0
36
76
186
605
1005+
2.24 ppb
0
54
101
361
1250
2050+
0.19 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Moderate
South Bend, Indiana
South Bend, Indiana
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AQI 43
Good
2.87μg/m³
PM2.5
12.49μg/m³
PM10
45.87ppb
O3
0.48ppb
SO2
2.24ppb
NO2
0.19ppm
CO
AQI 42
Good
2.94μg/m³
PM2.5
12.69μg/m³
PM10
44.99ppb
O3
0.46ppb
SO2
2.21ppb
NO2
0.19ppm
CO
AQI 43
Good
2.95μg/m³
PM2.5
12.68μg/m³
PM10
45.91ppb
O3
0.46ppb
SO2
2.25ppb
NO2
0.19ppm
CO
AQI 42
Good
2.94μg/m³
PM2.5
12.69μg/m³
PM10
44.99ppb
O3
0.46ppb
SO2
2.21ppb
NO2
0.19ppm
CO
AQI 41
Good
2.78μg/m³
PM2.5
14.79μg/m³
PM10
43.96ppb
O3
0.45ppb
SO2
2.27ppb
NO2
0.20ppm
CO
AQI 43
Good
2.63μg/m³
PM2.5
14.93μg/m³
PM10
46.18ppb
O3
0.45ppb
SO2
2.28ppb
NO2
0.20ppm
CO
Air quality data and pollutant measurements for Indiana, 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 South Bend, Indiana is updated every hour.
The worst air quality in South Bend, Indiana in the last 24 hours was observed at 11:00:00 on 2026-06-12.
In the last 24 hrs, the best air quality in South Bend, Indiana was observed at 01:00:00 on 2026-06-13.
The current air quality in South Bend, Indiana is 43, categorized as Good based on real-time data.
The most common pollutant in South Bend, Indiana is O3.
If the air quality in South Bend, Indiana is poor, consider staying indoors and wearing a mask to protect yourself.
The current PM2.5 concentration at South Bend, Indiana is 2.83 μg/m3.
The current PM10 concentration at South Bend, Indiana is 12.275 μg/m3.
The current carbon monoxide (CO) concentration at South Bend, Indiana is 0.188 ppm.
The current sulfur dioxide (SO2) concentration at South Bend, Indiana is 0.49 ppb.
The current ozone (O3) concentration at South Bend, Indiana is 45.999 ppm.
The current nitrogen dioxide (NO2) concentration at South Bend, Indiana is 2.239 ppb.
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