Real-time air quality index in Marshalltown, Iowa today
Stay updated with real-time air quality in Marshalltown, 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)
33
Good
Marshalltown, Iowa
Last updated: ... (Local time)
Common air pollutants in Marshalltown, Iowa
Good
Fine
Moderate
Poor
Very poor
Hazardous
Particulate Matter2.5 (PM2.5)
4.85 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
Particulate Matter10 (PM10)
21.00 μg/m³
0
55
155
255
425
605+
Ozone (O3)
36.43 ppb
0
55
71
86
201
201+
Sulfur Dioxide (SO2)
0.29 ppb
0
36
76
186
605
1005+
Nitrogen Dioxide (NO2)
2.05 ppb
0
54
101
361
1250
2050+
Carbon Monoxide (CO)
0.14 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Marshalltown, Iowa
Marshalltown, Iowa
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Marshalltown, Iowa air quality map: Real-time AQI near you
Air quality in nearby cities
Newton, Iowa
AQI 33
Good
5.15μg/m³
PM2.5
22.45μg/m³
PM10
35.53ppb
O3
0.26ppb
SO2
1.97ppb
NO2
0.14ppm
CO
Ames, Iowa
AQI 28
Good
5.33μg/m³
PM2.5
17.47μg/m³
PM10
30.16ppb
O3
0.54ppb
SO2
2.66ppb
NO2
0.21ppm
CO
Altoona, Iowa
AQI 33
Good
5.81μg/m³
PM2.5
19.99μg/m³
PM10
30.20ppb
O3
0.48ppb
SO2
2.59ppb
NO2
0.17ppm
CO
Cedar Falls, Iowa
AQI 27
Good
4.86μg/m³
PM2.5
22.59μg/m³
PM10
29.44ppb
O3
0.51ppb
SO2
2.59ppb
NO2
0.24ppm
CO
Ankeny, Iowa
AQI 28
Good
5.35μg/m³
PM2.5
22.79μg/m³
PM10
30.14ppb
O3
0.49ppb
SO2
2.74ppb
NO2
0.17ppm
CO
Waterloo, Iowa
AQI 28
Good
4.61μg/m³
PM2.5
20.00μg/m³
PM10
29.55ppb
O3
0.48ppb
SO2
2.58ppb
NO2
0.24ppm
CO
How accurate is Iowa, USA air quality data?
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
Frequently asked questions
How frequently is the air quality data for Marshalltown, Iowa updated?
Air quality data for Marshalltown, Iowa is updated on an hourly basis.
When did Marshalltown, Iowa experience the worst air quality in the last 24 hours?
The worst air quality in Marshalltown, Iowa was recorded at 01:00:00 on 2026-06-08.
When did Marshalltown, Iowa have its best air quality in the last 24 hours?
The best air quality in Marshalltown, Iowa was recorded at 11:00:00 on 2026-06-07.
What is the real-time air quality index for Marshalltown, Iowa?
The real-time air quality index in Marshalltown, Iowa is 33, currently categorized as Good.
Which pollutant is found most often in Marshalltown, Iowa?
The most common pollutant in Marshalltown, Iowa is O3.
What can I do if the air quality in Marshalltown, Iowa is poor?
If the air quality in Marshalltown, Iowa is poor, limit outdoor activities and use a mask to safeguard your health.
What are the current PM2.5 levels in Marshalltown, Iowa?
The measured PM2.5 levels in Marshalltown, Iowa at present are 4.854 μg/m3.
What are the current PM10 levels at Marshalltown, Iowa?
The current PM10 levels in Marshalltown, Iowa are 21 μg/m3.
What are the current carbon monoxide (CO) levels at Marshalltown, Iowa?
The current carbon monoxide (CO) level in Marshalltown, Iowa is 0.144 ppm.
What are the current sulfur dioxide (SO2) levels at Marshalltown, Iowa?
The current sulfur dioxide (SO2) levels in Marshalltown, Iowa are 0.29 ppb.
What are the current ozone (O3) levels at Marshalltown, Iowa?
The current ozone (O3) levels at Marshalltown, Iowa is 36.433 ppm.
What are the current nitrogen dioxide (NO2) levels at Marshalltown, Iowa?
The current nitrogen dioxide (NO2) levels at Marshalltown, Iowa is 2.051 ppb.
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