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)
45
Good
Marion City, Indiana
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
4.00 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
10.86 μg/m³
0
55
155
255
425
605+
49.11 ppb
0
55
71
86
201
201+
1.12 ppb
0
36
76
186
605
1005+
2.43 ppb
0
54
101
361
1250
2050+
0.16 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Marion City, Indiana
Marion City, Indiana
Scroll To Air Quality MapLoading...
AQI 54
Moderate
3.69μg/m³
PM2.5
14.19μg/m³
PM10
55.94ppb
O3
1.31ppb
SO2
3.10ppb
NO2
0.18ppm
CO
AQI 50
Good
3.06μg/m³
PM2.5
15.13μg/m³
PM10
53.60ppb
O3
0.58ppb
SO2
4.68ppb
NO2
0.18ppm
CO
AQI 54
Moderate
3.11μg/m³
PM2.5
13.56μg/m³
PM10
56.25ppb
O3
1.40ppb
SO2
5.00ppb
NO2
0.18ppm
CO
AQI 44
Good
3.18μg/m³
PM2.5
14.88μg/m³
PM10
47.54ppb
O3
0.55ppb
SO2
4.75ppb
NO2
0.18ppm
CO
AQI 49
Good
3.03μg/m³
PM2.5
18.00μg/m³
PM10
52.98ppb
O3
0.65ppb
SO2
3.00ppb
NO2
0.18ppm
CO
AQI 51
Moderate
3.23μg/m³
PM2.5
15.29μg/m³
PM10
55.06ppb
O3
1.31ppb
SO2
3.81ppb
NO2
0.17ppm
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 09:00:00 on 2026-06-11.
In the last 24 hrs, the best air quality in Marion City, Indiana was observed at 08:00:00 on 2026-06-11.
The current air quality in Marion City, Indiana is 45, 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 4.004 μg/m3.
The current PM10 concentration at Marion City, Indiana is 10.857 μg/m3.
The current carbon monoxide (CO) concentration at Marion City, Indiana is 0.163 ppm.
The current sulfur dioxide (SO2) concentration at Marion City, Indiana is 1.12 ppb.
The current ozone (O3) concentration at Marion City, Indiana is 49.108 ppm.
The current nitrogen dioxide (NO2) concentration at Marion City, Indiana is 2.427 ppb.
All Rights Reserved © Ambee Inc. 2025