Stay updated with real-time air quality in Marion, Iowa 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, Iowa
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
7.25 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
32.18 μg/m³
0
55
155
255
425
605+
24.16 ppb
0
55
71
86
201
201+
0.25 ppb
0
36
76
186
605
1005+
2.98 ppb
0
54
101
361
1250
2050+
0.14 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Marion, Iowa
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AQI 38
Good
7.20μg/m³
PM2.5
32.00μg/m³
PM10
24.00ppb
O3
0.25ppb
SO2
2.88ppb
NO2
0.14ppm
CO
AQI 49
Good
9.45μg/m³
PM2.5
41.86μg/m³
PM10
22.87ppb
O3
0.22ppb
SO2
2.79ppb
NO2
0.14ppm
CO
AQI 52
Moderate
10.13μg/m³
PM2.5
44.81μg/m³
PM10
22.49ppb
O3
0.21ppb
SO2
2.77ppb
NO2
0.14ppm
CO
AQI 54
Moderate
11.04μg/m³
PM2.5
48.74μg/m³
PM10
21.97ppb
O3
0.21ppb
SO2
2.74ppb
NO2
0.14ppm
CO
AQI 38
Good
7.18μg/m³
PM2.5
31.88μg/m³
PM10
24.89ppb
O3
0.35ppb
SO2
3.09ppb
NO2
0.16ppm
CO
AQI 44
Good
8.38μg/m³
PM2.5
36.93μg/m³
PM10
22.21ppb
O3
0.10ppb
SO2
2.52ppb
NO2
0.13ppm
CO
Air quality measurements for Iowa, USA meet strict US EPA standards. These measurements are collected from reliable sources, including satellites and ground-based monitoring systems. Advanced algorithms and machine learning techniques are applied to the data, factoring in variables such as traffic and population density, to ensure precision and reliability.
Source: Ambee Data Sources
Air quality data for Marion, Iowa is updated on an hourly basis.
The worst air quality in Marion, Iowa was recorded at 12:00:00 on 2026-03-08.
The best air quality in Marion, Iowa was recorded at 02:00:00 on 2026-03-07.
The real-time air quality index in Marion, Iowa is 38, currently categorized as Good.
The most common pollutant in Marion, Iowa is PM2.5.
If the air quality in Marion, Iowa is poor, limit outdoor activities and use a mask to safeguard your health.
The measured PM2.5 levels in Marion, Iowa at present are 7.247 μg/m3.
The current PM10 levels in Marion, Iowa are 32.178 μg/m3.
The current carbon monoxide (CO) level in Marion, Iowa is 0.145 ppm.
The current sulfur dioxide (SO2) levels in Marion, Iowa are 0.249 ppb.
The current ozone (O3) levels at Marion, Iowa is 24.16 ppm.
The current nitrogen dioxide (NO2) levels at Marion, Iowa is 2.984 ppb.
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