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)
52
Moderate
Marion City, Indiana
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
9.86 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
30.48 μg/m³
0
55
155
255
425
605+
21.67 ppb
0
55
71
86
201
201+
0.73 ppb
0
36
76
186
605
1005+
10.56 ppb
0
54
101
361
1250
2050+
0.27 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Marion City, Indiana
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AQI 44
Good
7.56μg/m³
PM2.5
29.19μg/m³
PM10
16.70ppb
O3
0.71ppb
SO2
12.04ppb
NO2
0.31ppm
CO
AQI 49
Good
9.43μg/m³
PM2.5
39.06μg/m³
PM10
14.43ppb
O3
0.56ppb
SO2
9.70ppb
NO2
0.32ppm
CO
AQI 62
Moderate
14.84μg/m³
PM2.5
41.09μg/m³
PM10
20.08ppb
O3
1.19ppb
SO2
12.19ppb
NO2
0.27ppm
CO
AQI 52
Moderate
10.29μg/m³
PM2.5
54.63μg/m³
PM10
17.02ppb
O3
0.54ppb
SO2
9.03ppb
NO2
0.32ppm
CO
AQI 33
Good
5.92μg/m³
PM2.5
17.88μg/m³
PM10
18.06ppb
O3
0.65ppb
SO2
11.98ppb
NO2
0.32ppm
CO
AQI 38
Good
6.57μg/m³
PM2.5
33.53μg/m³
PM10
22.51ppb
O3
0.90ppb
SO2
8.27ppb
NO2
0.29ppm
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 2026-03-06.
In the last 24 hrs, the best air quality in Marion City, Indiana was observed at 06:00:00 on 2026-03-05.
The current air quality in Marion City, Indiana is 52, categorized as Moderate based on real-time data.
The most common pollutant in Marion City, Indiana is PM2.5.
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 9.864 μg/m3.
The current PM10 concentration at Marion City, Indiana is 30.482 μg/m3.
The current carbon monoxide (CO) concentration at Marion City, Indiana is 0.266 ppm.
The current sulfur dioxide (SO2) concentration at Marion City, Indiana is 0.733 ppb.
The current ozone (O3) concentration at Marion City, Indiana is 21.672 ppm.
The current nitrogen dioxide (NO2) concentration at Marion City, Indiana is 10.56 ppb.
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