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)
66
Moderate
Marion City, Indiana
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
16.66 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
60.69 μg/m³
0
55
155
255
425
605+
49.35 ppb
0
55
71
86
201
201+
0.72 ppb
0
36
76
186
605
1005+
10.29 ppb
0
54
101
361
1250
2050+
0.25 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Very high
Marion City, Indiana
Marion City, Indiana
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AQI 64
Moderate
16.05μg/m³
PM2.5
66.06μg/m³
PM10
55.27ppb
O3
0.98ppb
SO2
4.84ppb
NO2
0.33ppm
CO
AQI 64
Moderate
16.50μg/m³
PM2.5
67.96μg/m³
PM10
58.90ppb
O3
0.66ppb
SO2
4.41ppb
NO2
0.36ppm
CO
AQI 64
Moderate
16.45μg/m³
PM2.5
61.35μg/m³
PM10
56.17ppb
O3
0.89ppb
SO2
4.72ppb
NO2
0.34ppm
CO
AQI 62
Moderate
14.62μg/m³
PM2.5
51.03μg/m³
PM10
49.07ppb
O3
0.76ppb
SO2
4.30ppb
NO2
0.36ppm
CO
AQI 56
Moderate
11.65μg/m³
PM2.5
36.48μg/m³
PM10
48.19ppb
O3
0.72ppb
SO2
4.86ppb
NO2
0.35ppm
CO
AQI 62
Moderate
14.50μg/m³
PM2.5
61.94μg/m³
PM10
49.39ppb
O3
0.84ppb
SO2
6.67ppb
NO2
0.32ppm
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 12:00:00 on 2026-04-24.
In the last 24 hrs, the best air quality in Marion City, Indiana was observed at 12:00:00 on 2026-04-23.
The current air quality in Marion City, Indiana is 64, 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 16.051 μg/m3.
The current PM10 concentration at Marion City, Indiana is 66.065 μg/m3.
The current carbon monoxide (CO) concentration at Marion City, Indiana is 0.327 ppm.
The current sulfur dioxide (SO2) concentration at Marion City, Indiana is 0.98 ppb.
The current ozone (O3) concentration at Marion City, Indiana is 55.265 ppm.
The current nitrogen dioxide (NO2) concentration at Marion City, Indiana is 4.845 ppb.
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