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)
69
Moderate
Marion City, Indiana
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
19.36 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
73.25 μg/m³
0
55
155
255
425
605+
23.66 ppb
0
55
71
86
201
201+
1.14 ppb
0
36
76
186
605
1005+
12.55 ppb
0
54
101
361
1250
2050+
0.31 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 67
Moderate
18.10μg/m³
PM2.5
75.11μg/m³
PM10
21.56ppb
O3
1.13ppb
SO2
12.63ppb
NO2
0.25ppm
CO
AQI 73
Moderate
20.52μg/m³
PM2.5
89.63μg/m³
PM10
22.82ppb
O3
1.03ppb
SO2
12.38ppb
NO2
0.24ppm
CO
AQI 75
Moderate
21.79μg/m³
PM2.5
70.80μg/m³
PM10
24.11ppb
O3
1.13ppb
SO2
12.21ppb
NO2
0.25ppm
CO
AQI 71
Moderate
19.74μg/m³
PM2.5
73.78μg/m³
PM10
22.97ppb
O3
0.82ppb
SO2
12.61ppb
NO2
0.22ppm
CO
AQI 52
Moderate
9.86μg/m³
PM2.5
43.93μg/m³
PM10
16.18ppb
O3
0.84ppb
SO2
11.73ppb
NO2
0.25ppm
CO
AQI 73
Moderate
20.61μg/m³
PM2.5
68.09μg/m³
PM10
23.04ppb
O3
0.85ppb
SO2
13.57ppb
NO2
0.25ppm
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 2025-12-06.
In the last 24 hrs, the best air quality in Marion City, Indiana was observed at 11:00:00 on 2025-12-06.
The current air quality in Marion City, Indiana is 67, 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 18.099 μg/m3.
The current PM10 concentration at Marion City, Indiana is 75.111 μg/m3.
The current carbon monoxide (CO) concentration at Marion City, Indiana is 0.251 ppm.
The current sulfur dioxide (SO2) concentration at Marion City, Indiana is 1.129 ppb.
The current ozone (O3) concentration at Marion City, Indiana is 21.564 ppm.
The current nitrogen dioxide (NO2) concentration at Marion City, Indiana is 12.632 ppb.
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