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)
27
Good
Norwalk, Iowa
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
5.00 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
22.08 μg/m³
0
55
155
255
425
605+
19.87 ppb
0
55
71
86
201
201+
0.77 ppb
0
36
76
186
605
1005+
3.69 ppb
0
54
101
361
1250
2050+
0.17 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Norwalk, Iowa
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AQI 27
Good
4.64μg/m³
PM2.5
20.67μg/m³
PM10
17.38ppb
O3
0.77ppb
SO2
3.69ppb
NO2
0.17ppm
CO
AQI 22
Good
4.30μg/m³
PM2.5
18.87μg/m³
PM10
16.58ppb
O3
0.58ppb
SO2
3.67ppb
NO2
0.17ppm
CO
AQI 27
Good
4.64μg/m³
PM2.5
19.67μg/m³
PM10
18.07ppb
O3
0.76ppb
SO2
3.69ppb
NO2
0.17ppm
CO
AQI 27
Good
5.07μg/m³
PM2.5
16.12μg/m³
PM10
20.03ppb
O3
0.82ppb
SO2
3.70ppb
NO2
0.17ppm
CO
AQI 27
Good
4.96μg/m³
PM2.5
22.21μg/m³
PM10
19.45ppb
O3
0.76ppb
SO2
3.70ppb
NO2
0.17ppm
CO
AQI 27
Good
4.69μg/m³
PM2.5
20.34μg/m³
PM10
17.13ppb
O3
0.58ppb
SO2
3.67ppb
NO2
0.18ppm
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 03:00:00, 2026-09-07.
The best air quality in Norwalk, Iowa was observed at 08:00:00 on 2026-09-07.
The air quality in Norwalk, Iowa right now is Good, with an AQI of 27.
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 5.001 μg/m3.
Norwalk, Iowa currently has a PM10 concentration of 22.081 μg/m3.
The current carbon monoxide (CO) level in Norwalk, Iowa is 0.171 ppm.
The current sulfur dioxide (SO2) concentration in Norwalk, Iowa is 0.771 ppb.
Norwalk, Iowa currently has an ozone (O3) concentration of 19.868 ppm.
The current level of nitrogen dioxide (NO2) in Norwalk, Iowa is 3.688 ppb.
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