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)
30
Good
Marion City, Indiana
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
4.07 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
20.42 μg/m³
0
55
155
255
425
605+
31.65 ppb
0
55
71
86
201
201+
1.25 ppb
0
36
76
186
605
1005+
13.17 ppb
0
54
101
361
1250
2050+
0.29 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Marion City, Indiana
Marion City, Indiana
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AQI 30
Good
4.07μg/m³
PM2.5
20.42μg/m³
PM10
31.65ppb
O3
1.25ppb
SO2
13.17ppb
NO2
0.29ppm
CO
AQI 31
Good
2.72μg/m³
PM2.5
13.91μg/m³
PM10
34.39ppb
O3
1.10ppb
SO2
11.19ppb
NO2
0.28ppm
CO
AQI 31
Good
2.86μg/m³
PM2.5
18.52μg/m³
PM10
34.37ppb
O3
1.42ppb
SO2
11.36ppb
NO2
0.23ppm
CO
AQI 31
Good
2.49μg/m³
PM2.5
10.30μg/m³
PM10
33.39ppb
O3
0.59ppb
SO2
11.14ppb
NO2
0.21ppm
CO
AQI 27
Good
2.12μg/m³
PM2.5
9.11μg/m³
PM10
28.96ppb
O3
0.57ppb
SO2
12.04ppb
NO2
0.30ppm
CO
AQI 25
Good
3.90μg/m³
PM2.5
17.60μg/m³
PM10
26.81ppb
O3
1.29ppb
SO2
16.92ppb
NO2
0.28ppm
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 2026-01-22.
In the last 24 hrs, the best air quality in Marion City, Indiana was observed at 05:00:00 on 2026-01-22.
The current air quality in Marion City, Indiana is 30, 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 4.071 μg/m3.
The current PM10 concentration at Marion City, Indiana is 20.423 μg/m3.
The current carbon monoxide (CO) concentration at Marion City, Indiana is 0.292 ppm.
The current sulfur dioxide (SO2) concentration at Marion City, Indiana is 1.253 ppb.
The current ozone (O3) concentration at Marion City, Indiana is 31.653 ppm.
The current nitrogen dioxide (NO2) concentration at Marion City, Indiana is 13.172 ppb.
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