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

Good
Fine
Moderate
Poor
Very poor
Hazardous
9.26 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
41.78 μg/m³
0
55
155
255
425
605+
21.21 ppb
0
55
71
86
201
201+
0.44 ppb
0
36
76
186
605
1005+
2.88 ppb
0
54
101
361
1250
2050+
0.40 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Waterloo, Iowa
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AQI 38
Good
7.41μg/m³
PM2.5
36.44μg/m³
PM10
23.57ppb
O3
0.45ppb
SO2
2.87ppb
NO2
0.39ppm
CO
AQI 44
Good
7.77μg/m³
PM2.5
30.96μg/m³
PM10
23.87ppb
O3
0.47ppb
SO2
2.88ppb
NO2
0.40ppm
CO
AQI 58
Moderate
12.74μg/m³
PM2.5
57.10μg/m³
PM10
15.79ppb
O3
0.72ppb
SO2
3.19ppb
NO2
0.16ppm
CO
AQI 38
Good
6.55μg/m³
PM2.5
29.43μg/m³
PM10
24.82ppb
O3
0.31ppb
SO2
3.28ppb
NO2
0.34ppm
CO
AQI 38
Good
6.50μg/m³
PM2.5
29.00μg/m³
PM10
25.00ppb
O3
0.30ppb
SO2
3.29ppb
NO2
0.34ppm
CO
AQI 64
Moderate
15.62μg/m³
PM2.5
69.88μg/m³
PM10
18.82ppb
O3
0.48ppb
SO2
3.52ppb
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 06:00:00 on 2026-09-07.
In the last 24 hours, the best air quality in Waterloo, Iowa was observed at 02:00:00 on 2026-09-06.
As of now, the AQI in Waterloo, Iowa is 49, 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 9.264 μg/m3.
The PM10 concentration in Waterloo, Iowa is 41.782 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Waterloo, Iowa is 0.397 ppm.
Currently, Waterloo, Iowa has a sulfur dioxide (SO2) concentration of 0.441 ppb.
The current ozone (O3) level in Waterloo, Iowa at the moment is 21.214 ppm.
Nitrogen dioxide (NO2) level in Waterloo, Iowa at the moment is 2.881 ppb.
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