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)
44
Good
Marion City, Indiana
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
7.84 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
31.45 μg/m³
0
55
155
255
425
605+
27.20 ppb
0
55
71
86
201
201+
0.99 ppb
0
36
76
186
605
1005+
6.58 ppb
0
54
101
361
1250
2050+
0.23 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 52
Moderate
10.35μg/m³
PM2.5
43.26μg/m³
PM10
27.34ppb
O3
1.01ppb
SO2
5.68ppb
NO2
0.23ppm
CO
AQI 49
Good
8.72μg/m³
PM2.5
41.82μg/m³
PM10
30.17ppb
O3
0.81ppb
SO2
3.66ppb
NO2
0.24ppm
CO
AQI 44
Good
8.20μg/m³
PM2.5
33.09μg/m³
PM10
26.63ppb
O3
0.86ppb
SO2
3.72ppb
NO2
0.23ppm
CO
AQI 44
Good
8.09μg/m³
PM2.5
29.66μg/m³
PM10
30.00ppb
O3
0.79ppb
SO2
3.76ppb
NO2
0.25ppm
CO
AQI 38
Good
7.29μg/m³
PM2.5
14.67μg/m³
PM10
30.86ppb
O3
0.88ppb
SO2
6.68ppb
NO2
0.24ppm
CO
AQI 44
Good
7.55μg/m³
PM2.5
27.96μg/m³
PM10
26.45ppb
O3
1.00ppb
SO2
6.99ppb
NO2
0.23ppm
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 04:00:00 on 2026-06-07.
In the last 24 hrs, the best air quality in Marion City, Indiana was observed at 02:00:00 on 2026-06-08.
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 10.351 μg/m3.
The current PM10 concentration at Marion City, Indiana is 43.26 μg/m3.
The current carbon monoxide (CO) concentration at Marion City, Indiana is 0.229 ppm.
The current sulfur dioxide (SO2) concentration at Marion City, Indiana is 1.012 ppb.
The current ozone (O3) concentration at Marion City, Indiana is 27.345 ppm.
The current nitrogen dioxide (NO2) concentration at Marion City, Indiana is 5.684 ppb.
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