Stay updated with real-time air quality in Waterloo, 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)
26
Good
Waterloo, Iowa
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
3.50 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
16.04 μg/m³
0
55
155
255
425
605+
28.47 ppb
0
55
71
86
201
201+
0.21 ppb
0
36
76
186
605
1005+
2.03 ppb
0
54
101
361
1250
2050+
0.16 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Waterloo, Iowa
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AQI 33
Good
6.26μg/m³
PM2.5
28.15μg/m³
PM10
13.51ppb
O3
0.13ppb
SO2
4.73ppb
NO2
0.22ppm
CO
AQI 33
Good
5.82μg/m³
PM2.5
25.72μg/m³
PM10
13.74ppb
O3
0.14ppb
SO2
5.00ppb
NO2
0.22ppm
CO
AQI 33
Good
6.24μg/m³
PM2.5
28.00μg/m³
PM10
17.41ppb
O3
0.10ppb
SO2
4.20ppb
NO2
0.22ppm
CO
AQI 44
Good
7.86μg/m³
PM2.5
34.27μg/m³
PM10
14.72ppb
O3
0.22ppb
SO2
4.94ppb
NO2
0.23ppm
CO
AQI 44
Good
7.97μg/m³
PM2.5
34.88μg/m³
PM10
15.89ppb
O3
0.22ppb
SO2
4.92ppb
NO2
0.23ppm
CO
AQI 33
Good
6.29μg/m³
PM2.5
28.24μg/m³
PM10
14.71ppb
O3
0.10ppb
SO2
4.18ppb
NO2
0.20ppm
CO
Air quality and pollutant data for Iowa, USA are sourced from ground-based monitors and satellites, adhering to US EPA standards. Machine learning and advanced algorithms enhance the data by incorporating local variables like traffic and population density, ensuring high accuracy and dependability.
Source: Ambee Data Sources
The air quality information for Waterloo, Iowa is updated every hour for accuracy.
In the past 24 hours, the air quality in Waterloo, Iowa was at its worst at 06:00:00 on 2025-09-04.
In the last 24 hours, the best air quality in Waterloo, Iowa was observed at 01:00:00 on 2025-09-04.
As of now, the AQI in Waterloo, Iowa is 38, indicating Good conditions.
Waterloo, Iowa air has the highest levels of PM2.5.
Poor air quality in Waterloo, Iowa means it's advisable to stay indoors and wear a mask for your protection.
PM2.5 levels in Waterloo, Iowa are currently 6.557 μg/m3.
The PM10 concentration in Waterloo, Iowa is 29.002 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Waterloo, Iowa is 0.219 ppm.
Currently, Waterloo, Iowa has a sulfur dioxide (SO2) concentration of 0.133 ppb.
The current ozone (O3) level in Waterloo, Iowa at the moment is 13.257 ppm.
Nitrogen dioxide (NO2) level in Waterloo, Iowa at the moment is 4.76 ppb.
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