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)
19
Good
Marion City, Indiana
Last updated: ... (Local time)
Good
Fine
Moderate
Poor
Very poor
Hazardous
3.11 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
15.45 μg/m³
0
55
155
255
425
605+
21.47 ppb
0
55
71
86
201
201+
1.35 ppb
0
36
76
186
605
1005+
6.52 ppb
0
54
101
361
1250
2050+
0.23 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 19
Good
3.11μg/m³
PM2.5
15.45μg/m³
PM10
21.47ppb
O3
1.35ppb
SO2
6.52ppb
NO2
0.23ppm
CO
AQI 20
Good
2.92μg/m³
PM2.5
14.74μg/m³
PM10
21.79ppb
O3
1.19ppb
SO2
5.12ppb
NO2
0.24ppm
CO
AQI 21
Good
2.29μg/m³
PM2.5
10.44μg/m³
PM10
23.37ppb
O3
1.26ppb
SO2
6.37ppb
NO2
0.23ppm
CO
AQI 18
Good
3.18μg/m³
PM2.5
15.55μg/m³
PM10
18.76ppb
O3
1.00ppb
SO2
5.16ppb
NO2
0.24ppm
CO
AQI 22
Good
2.81μg/m³
PM2.5
12.05μg/m³
PM10
23.93ppb
O3
1.02ppb
SO2
6.42ppb
NO2
0.25ppm
CO
AQI 21
Good
2.58μg/m³
PM2.5
11.12μg/m³
PM10
22.90ppb
O3
1.44ppb
SO2
6.64ppb
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 10:00:00 on 2025-10-21.
In the last 24 hrs, the best air quality in Marion City, Indiana was observed at 02:00:00 on 2025-10-22.
The current air quality in Marion City, Indiana is 19, 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 3.113 μg/m3.
The current PM10 concentration at Marion City, Indiana is 15.45 μg/m3.
The current carbon monoxide (CO) concentration at Marion City, Indiana is 0.235 ppm.
The current sulfur dioxide (SO2) concentration at Marion City, Indiana is 1.346 ppb.
The current ozone (O3) concentration at Marion City, Indiana is 21.474 ppm.
The current nitrogen dioxide (NO2) concentration at Marion City, Indiana is 6.523 ppb.
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