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)
56
Moderate
Waterloo, Iowa
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
11.77 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
51.86 μg/m³
0
55
155
255
425
605+
14.44 ppb
0
55
71
86
201
201+
0.20 ppb
0
36
76
186
605
1005+
1.90 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
Scroll To Air Quality MapLoading...
AQI 54
Moderate
11.06μg/m³
PM2.5
44.19μg/m³
PM10
14.47ppb
O3
0.20ppb
SO2
1.92ppb
NO2
0.16ppm
CO
AQI 49
Good
8.62μg/m³
PM2.5
33.26μg/m³
PM10
14.59ppb
O3
0.19ppb
SO2
1.97ppb
NO2
0.17ppm
CO
AQI 16
Good
3.38μg/m³
PM2.5
14.89μg/m³
PM10
16.47ppb
O3
0.15ppb
SO2
0.96ppb
NO2
0.14ppm
CO
AQI 27
Good
5.11μg/m³
PM2.5
22.49μg/m³
PM10
18.01ppb
O3
0.25ppb
SO2
1.83ppb
NO2
0.15ppm
CO
AQI 27
Good
5.20μg/m³
PM2.5
23.00μg/m³
PM10
17.62ppb
O3
0.25ppb
SO2
1.82ppb
NO2
0.14ppm
CO
AQI 16
Good
2.67μg/m³
PM2.5
11.05μg/m³
PM10
16.63ppb
O3
0.06ppb
SO2
0.95ppb
NO2
0.14ppm
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 04:00:00 on 2026-01-23.
In the last 24 hours, the best air quality in Waterloo, Iowa was observed at 11:00:00 on 2026-01-22.
As of now, the AQI in Waterloo, Iowa is 56, indicating Moderate 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 11.769 μg/m3.
The PM10 concentration in Waterloo, Iowa is 51.863 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Waterloo, Iowa is 0.16 ppm.
Currently, Waterloo, Iowa has a sulfur dioxide (SO2) concentration of 0.196 ppb.
The current ozone (O3) level in Waterloo, Iowa at the moment is 14.442 ppm.
Nitrogen dioxide (NO2) level in Waterloo, Iowa at the moment is 1.901 ppb.
All Rights Reserved © Ambee Inc. 2025