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)
40
Good
Marion, Iowa
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
3.40 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
14.64 μg/m³
0
55
155
255
425
605+
42.92 ppb
0
55
71
86
201
201+
0.12 ppb
0
36
76
186
605
1005+
1.63 ppb
0
54
101
361
1250
2050+
0.21 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Marion, Iowa
Scroll To Air Quality MapLoading...
AQI 40
Good
3.40μg/m³
PM2.5
15.00μg/m³
PM10
43.00ppb
O3
0.10ppb
SO2
1.61ppb
NO2
0.21ppm
CO
AQI 40
Good
3.48μg/m³
PM2.5
15.22μg/m³
PM10
42.85ppb
O3
0.26ppb
SO2
1.89ppb
NO2
0.18ppm
CO
AQI 40
Good
3.52μg/m³
PM2.5
15.47μg/m³
PM10
42.85ppb
O3
0.30ppb
SO2
1.96ppb
NO2
0.17ppm
CO
AQI 40
Good
3.59μg/m³
PM2.5
15.95μg/m³
PM10
42.87ppb
O3
0.34ppb
SO2
2.06ppb
NO2
0.16ppm
CO
AQI 38
Good
3.79μg/m³
PM2.5
16.95μg/m³
PM10
40.69ppb
O3
0.32ppb
SO2
1.91ppb
NO2
0.23ppm
CO
AQI 38
Good
2.02μg/m³
PM2.5
8.07μg/m³
PM10
41.43ppb
O3
0.47ppb
SO2
2.09ppb
NO2
0.17ppm
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 01:00:00 on 2026-06-13.
The best air quality in Marion, Iowa was recorded at 09:00:00 on 2026-06-13.
The real-time air quality index in Marion, Iowa is 40, currently categorized as Good.
The most common pollutant in Marion, Iowa is O3.
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 3.395 μg/m3.
The current PM10 levels in Marion, Iowa are 14.645 μg/m3.
The current carbon monoxide (CO) level in Marion, Iowa is 0.213 ppm.
The current sulfur dioxide (SO2) levels in Marion, Iowa are 0.121 ppb.
The current ozone (O3) levels at Marion, Iowa is 42.92 ppm.
The current nitrogen dioxide (NO2) levels at Marion, Iowa is 1.629 ppb.
All Rights Reserved © Ambee Inc. 2025