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)
49
Good
Norwalk, Iowa
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
8.71 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
35.01 μg/m³
0
55
155
255
425
605+
41.43 ppb
0
55
71
86
201
201+
3.82 ppb
0
36
76
186
605
1005+
4.77 ppb
0
54
101
361
1250
2050+
0.25 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Norwalk, Iowa
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AQI 49
Good
8.75μg/m³
PM2.5
38.40μg/m³
PM10
41.09ppb
O3
3.98ppb
SO2
4.80ppb
NO2
0.25ppm
CO
AQI 49
Good
9.22μg/m³
PM2.5
41.06μg/m³
PM10
41.06ppb
O3
3.95ppb
SO2
4.78ppb
NO2
0.25ppm
CO
AQI 49
Good
8.63μg/m³
PM2.5
38.16μg/m³
PM10
41.04ppb
O3
4.01ppb
SO2
4.79ppb
NO2
0.25ppm
CO
AQI 49
Good
8.76μg/m³
PM2.5
34.68μg/m³
PM10
40.27ppb
O3
3.63ppb
SO2
4.68ppb
NO2
0.25ppm
CO
AQI 49
Good
8.74μg/m³
PM2.5
38.73μg/m³
PM10
41.04ppb
O3
4.12ppb
SO2
4.80ppb
NO2
0.25ppm
CO
AQI 52
Moderate
9.57μg/m³
PM2.5
42.74μg/m³
PM10
41.03ppb
O3
3.93ppb
SO2
4.77ppb
NO2
0.26ppm
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 07:00:00, 2026-03-09.
The best air quality in Norwalk, Iowa was observed at 03:00:00 on 2026-03-09.
The air quality in Norwalk, Iowa right now is Good, with an AQI of 49.
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 8.713 μg/m3.
Norwalk, Iowa currently has a PM10 concentration of 35.005 μg/m3.
The current carbon monoxide (CO) level in Norwalk, Iowa is 0.253 ppm.
The current sulfur dioxide (SO2) concentration in Norwalk, Iowa is 3.824 ppb.
Norwalk, Iowa currently has an ozone (O3) concentration of 41.434 ppm.
The current level of nitrogen dioxide (NO2) in Norwalk, Iowa is 4.767 ppb.
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