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)
35
Good
South Bend, Indiana
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
3.92 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
17.36 μg/m³
0
55
155
255
425
605+
38.39 ppb
0
55
71
86
201
201+
0.86 ppb
0
36
76
186
605
1005+
1.28 ppb
0
54
101
361
1250
2050+
0.23 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
South Bend, Indiana
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AQI 34
Good
3.88μg/m³
PM2.5
17.30μg/m³
PM10
36.84ppb
O3
0.83ppb
SO2
1.52ppb
NO2
0.19ppm
CO
AQI 34
Good
3.85μg/m³
PM2.5
17.62μg/m³
PM10
37.39ppb
O3
0.83ppb
SO2
2.95ppb
NO2
0.19ppm
CO
AQI 35
Good
3.88μg/m³
PM2.5
17.20μg/m³
PM10
38.34ppb
O3
0.84ppb
SO2
2.05ppb
NO2
0.20ppm
CO
AQI 34
Good
3.85μg/m³
PM2.5
17.62μg/m³
PM10
37.39ppb
O3
0.83ppb
SO2
2.95ppb
NO2
0.19ppm
CO
AQI 33
Good
4.46μg/m³
PM2.5
19.82μg/m³
PM10
36.36ppb
O3
0.86ppb
SO2
3.19ppb
NO2
0.20ppm
CO
AQI 34
Good
4.29μg/m³
PM2.5
20.55μg/m³
PM10
37.30ppb
O3
0.87ppb
SO2
3.41ppb
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 12:00:00 on 2026-03-09.
In the last 24 hrs, the best air quality in South Bend, Indiana was observed at 03:00:00 on 2026-03-09.
The current air quality in South Bend, Indiana is 35, 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 3.922 μg/m3.
The current PM10 concentration at South Bend, Indiana is 17.359 μg/m3.
The current carbon monoxide (CO) concentration at South Bend, Indiana is 0.23 ppm.
The current sulfur dioxide (SO2) concentration at South Bend, Indiana is 0.862 ppb.
The current ozone (O3) concentration at South Bend, Indiana is 38.388 ppm.
The current nitrogen dioxide (NO2) concentration at South Bend, Indiana is 1.283 ppb.
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