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)
38
Good
Marion City, Indiana
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
4.70 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
19.42 μg/m³
0
55
155
255
425
605+
40.98 ppb
0
55
71
86
201
201+
2.40 ppb
0
36
76
186
605
1005+
8.81 ppb
0
54
101
361
1250
2050+
0.13 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 38
Good
4.70μg/m³
PM2.5
19.42μg/m³
PM10
40.98ppb
O3
2.40ppb
SO2
8.81ppb
NO2
0.13ppm
CO
AQI 38
Good
4.90μg/m³
PM2.5
23.48μg/m³
PM10
41.45ppb
O3
2.42ppb
SO2
8.76ppb
NO2
0.14ppm
CO
AQI 41
Good
4.92μg/m³
PM2.5
20.45μg/m³
PM10
43.92ppb
O3
2.27ppb
SO2
8.90ppb
NO2
0.14ppm
CO
AQI 39
Good
4.35μg/m³
PM2.5
18.89μg/m³
PM10
41.63ppb
O3
2.12ppb
SO2
8.67ppb
NO2
0.14ppm
CO
AQI 39
Good
2.37μg/m³
PM2.5
10.27μg/m³
PM10
42.01ppb
O3
2.31ppb
SO2
6.92ppb
NO2
0.17ppm
CO
AQI 37
Good
4.99μg/m³
PM2.5
20.42μg/m³
PM10
39.84ppb
O3
2.11ppb
SO2
8.00ppb
NO2
0.13ppm
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 01:00:00 on 2026-07-23.
In the last 24 hrs, the best air quality in Marion City, Indiana was observed at 03:00:00 on 2026-07-23.
The current air quality in Marion City, Indiana is 38, 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 4.703 μg/m3.
The current PM10 concentration at Marion City, Indiana is 19.419 μg/m3.
The current carbon monoxide (CO) concentration at Marion City, Indiana is 0.134 ppm.
The current sulfur dioxide (SO2) concentration at Marion City, Indiana is 2.405 ppb.
The current ozone (O3) concentration at Marion City, Indiana is 40.978 ppm.
The current nitrogen dioxide (NO2) concentration at Marion City, Indiana is 8.808 ppb.
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