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)
37
Good
Waterloo, Iowa
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
6.34 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
28.64 μg/m³
0
55
155
255
425
605+
39.83 ppb
0
55
71
86
201
201+
0.20 ppb
0
36
76
186
605
1005+
2.27 ppb
0
54
101
361
1250
2050+
0.20 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Waterloo, Iowa
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AQI 37
Good
5.74μg/m³
PM2.5
26.19μg/m³
PM10
40.27ppb
O3
0.21ppb
SO2
2.29ppb
NO2
0.20ppm
CO
AQI 38
Good
4.09μg/m³
PM2.5
11.26μg/m³
PM10
40.91ppb
O3
0.22ppb
SO2
2.33ppb
NO2
0.20ppm
CO
AQI 31
Good
3.15μg/m³
PM2.5
14.05μg/m³
PM10
33.52ppb
O3
0.16ppb
SO2
1.19ppb
NO2
0.14ppm
CO
AQI 35
Good
1.64μg/m³
PM2.5
6.94μg/m³
PM10
37.96ppb
O3
0.13ppb
SO2
2.02ppb
NO2
0.17ppm
CO
AQI 35
Good
1.60μg/m³
PM2.5
7.00μg/m³
PM10
38.00ppb
O3
0.13ppb
SO2
2.01ppb
NO2
0.17ppm
CO
AQI 25
Good
3.85μg/m³
PM2.5
16.92μg/m³
PM10
27.23ppb
O3
0.26ppb
SO2
1.44ppb
NO2
0.15ppm
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 08:00:00 on 2026-03-15.
In the last 24 hours, the best air quality in Waterloo, Iowa was observed at 09:00:00 on 2026-03-15.
As of now, the AQI in Waterloo, Iowa is 37, indicating Good conditions.
Waterloo, Iowa air has the highest levels of O3.
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 6.345 μg/m3.
The PM10 concentration in Waterloo, Iowa is 28.643 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Waterloo, Iowa is 0.197 ppm.
Currently, Waterloo, Iowa has a sulfur dioxide (SO2) concentration of 0.204 ppb.
The current ozone (O3) level in Waterloo, Iowa at the moment is 39.832 ppm.
Nitrogen dioxide (NO2) level in Waterloo, Iowa at the moment is 2.267 ppb.
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