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)
35
Good
Marion City, Indiana
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
2.91 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
12.78 μg/m³
0
55
155
255
425
605+
37.83 ppb
0
55
71
86
201
201+
7.79 ppb
0
36
76
186
605
1005+
14.13 ppb
0
54
101
361
1250
2050+
0.18 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Moderate
Marion City, Indiana
Marion City, Indiana
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AQI 35
Good
3.29μg/m³
PM2.5
12.90μg/m³
PM10
37.71ppb
O3
3.96ppb
SO2
12.08ppb
NO2
0.18ppm
CO
AQI 35
Good
3.28μg/m³
PM2.5
13.62μg/m³
PM10
37.86ppb
O3
3.67ppb
SO2
11.60ppb
NO2
0.18ppm
CO
AQI 33
Good
2.87μg/m³
PM2.5
12.98μg/m³
PM10
36.40ppb
O3
3.88ppb
SO2
11.12ppb
NO2
0.20ppm
CO
AQI 35
Good
3.32μg/m³
PM2.5
16.40μg/m³
PM10
37.88ppb
O3
1.27ppb
SO2
11.66ppb
NO2
0.18ppm
CO
AQI 33
Good
3.38μg/m³
PM2.5
14.92μg/m³
PM10
36.08ppb
O3
3.40ppb
SO2
10.28ppb
NO2
0.18ppm
CO
AQI 34
Good
2.98μg/m³
PM2.5
11.61μg/m³
PM10
36.94ppb
O3
4.40ppb
SO2
10.64ppb
NO2
0.18ppm
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 03:00:00 on 2026-10-05.
In the last 24 hrs, the best air quality in Marion City, Indiana was observed at 05:00:00 on 2026-10-05.
The current air quality in Marion City, Indiana is 35, 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 3.292 μg/m3.
The current PM10 concentration at Marion City, Indiana is 12.901 μg/m3.
The current carbon monoxide (CO) concentration at Marion City, Indiana is 0.183 ppm.
The current sulfur dioxide (SO2) concentration at Marion City, Indiana is 3.965 ppb.
The current ozone (O3) concentration at Marion City, Indiana is 37.714 ppm.
The current nitrogen dioxide (NO2) concentration at Marion City, Indiana is 12.084 ppb.
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