Stay updated with real-time air quality in Norwalk, 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)
22
Good
Norwalk, Iowa
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
4.26 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
17.91 μg/m³
0
55
155
255
425
605+
18.86 ppb
0
55
71
86
201
201+
2.95 ppb
0
36
76
186
605
1005+
3.25 ppb
0
54
101
361
1250
2050+
0.15 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Norwalk, Iowa
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AQI 22
Good
4.06μg/m³
PM2.5
7.55μg/m³
PM10
13.62ppb
O3
1.97ppb
SO2
3.37ppb
NO2
0.21ppm
CO
AQI 27
Good
4.64μg/m³
PM2.5
20.06μg/m³
PM10
11.19ppb
O3
1.92ppb
SO2
3.95ppb
NO2
0.21ppm
CO
AQI 22
Good
4.20μg/m³
PM2.5
8.61μg/m³
PM10
11.47ppb
O3
1.97ppb
SO2
3.37ppb
NO2
0.21ppm
CO
AQI 27
Good
5.01μg/m³
PM2.5
18.43μg/m³
PM10
18.37ppb
O3
1.95ppb
SO2
2.99ppb
NO2
0.21ppm
CO
AQI 27
Good
4.68μg/m³
PM2.5
16.35μg/m³
PM10
14.39ppb
O3
2.00ppb
SO2
3.35ppb
NO2
0.22ppm
CO
AQI 27
Good
5.35μg/m³
PM2.5
23.13μg/m³
PM10
12.34ppb
O3
1.92ppb
SO2
4.15ppb
NO2
0.22ppm
CO
The air quality data for Iowa, USA is gathered from reliable sources such as satellites and monitoring stations, adhering to US EPA guidelines. With the help of advanced algorithms and machine learning, factors like traffic and population density are analyzed to deliver accurate and dependable results.
Source: Ambee Data Sources
Air quality updates for Norwalk, Iowa are available every hour.
Norwalk, Iowa experienced its worst air quality at 09:00:00, 2026-03-06.
The best air quality in Norwalk, Iowa was observed at 07:00:00 on 2026-03-07.
The air quality in Norwalk, Iowa right now is Good, with an AQI of 22.
In Norwalk, Iowa, PM2.5 is the most frequently found pollutant.
When air quality in Norwalk, Iowa is compromised, staying indoors and wearing a mask can reduce health risks.
Norwalk, Iowa currently has a PM2.5 concentration of 4.257 μg/m3.
Norwalk, Iowa currently has a PM10 concentration of 17.914 μg/m3.
The current carbon monoxide (CO) level in Norwalk, Iowa is 0.15 ppm.
The current sulfur dioxide (SO2) concentration in Norwalk, Iowa is 2.951 ppb.
Norwalk, Iowa currently has an ozone (O3) concentration of 18.859 ppm.
The current level of nitrogen dioxide (NO2) in Norwalk, Iowa is 3.246 ppb.
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