Stay updated with real-time air quality in Marion City, 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)
36
Good
Marion City, Indiana
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
4.98 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
18.33 μg/m³
0
55
155
255
425
605+
38.84 ppb
0
55
71
86
201
201+
0.75 ppb
0
36
76
186
605
1005+
2.18 ppb
0
54
101
361
1250
2050+
0.15 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Marion City, Indiana
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AQI 31
Good
5.13μg/m³
PM2.5
19.18μg/m³
PM10
34.19ppb
O3
0.92ppb
SO2
2.91ppb
NO2
0.14ppm
CO
AQI 31
Good
5.11μg/m³
PM2.5
18.63μg/m³
PM10
34.07ppb
O3
0.72ppb
SO2
3.01ppb
NO2
0.14ppm
CO
AQI 33
Good
5.49μg/m³
PM2.5
20.74μg/m³
PM10
35.69ppb
O3
0.80ppb
SO2
3.19ppb
NO2
0.15ppm
CO
AQI 31
Good
5.25μg/m³
PM2.5
19.38μg/m³
PM10
34.47ppb
O3
0.73ppb
SO2
2.43ppb
NO2
0.14ppm
CO
AQI 31
Good
5.28μg/m³
PM2.5
22.94μg/m³
PM10
33.02ppb
O3
0.64ppb
SO2
2.77ppb
NO2
0.14ppm
CO
AQI 30
Good
5.21μg/m³
PM2.5
21.30μg/m³
PM10
32.07ppb
O3
0.91ppb
SO2
3.11ppb
NO2
0.13ppm
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 Marion City, Indiana is updated every hour.
The worst air quality in Marion City, Indiana in the last 24 hours was observed at 06:00:00 on 2026-03-09.
In the last 24 hrs, the best air quality in Marion City, Indiana was observed at 10:00:00 on 2026-03-09.
The current air quality in Marion City, Indiana is 32, categorized as Good based on real-time data.
The most common pollutant in Marion City, Indiana is O3.
If the air quality in Marion City, Indiana is poor, consider staying indoors and wearing a mask to protect yourself.
The current PM2.5 concentration at Marion City, Indiana is 4.83 μg/m3.
The current PM10 concentration at Marion City, Indiana is 16.701 μg/m3.
The current carbon monoxide (CO) concentration at Marion City, Indiana is 0.151 ppm.
The current sulfur dioxide (SO2) concentration at Marion City, Indiana is 0.78 ppb.
The current ozone (O3) concentration at Marion City, Indiana is 34.652 ppm.
The current nitrogen dioxide (NO2) concentration at Marion City, Indiana is 2.664 ppb.
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