Stay updated with real-time air quality in Dubuque, 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)
33
Good
Dubuque, Iowa
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
5.64 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
20.73 μg/m³
0
55
155
255
425
605+
29.16 ppb
0
55
71
86
201
201+
0.35 ppb
0
36
76
186
605
1005+
3.65 ppb
0
54
101
361
1250
2050+
0.18 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
High
Dubuque, Iowa
Dubuque, Iowa
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AQI 33
Good
6.30μg/m³
PM2.5
23.89μg/m³
PM10
32.61ppb
O3
0.31ppb
SO2
4.85ppb
NO2
0.18ppm
CO
AQI 49
Good
8.81μg/m³
PM2.5
41.47μg/m³
PM10
30.29ppb
O3
0.41ppb
SO2
3.73ppb
NO2
0.17ppm
CO
AQI 33
Good
5.99μg/m³
PM2.5
24.47μg/m³
PM10
31.97ppb
O3
0.29ppb
SO2
5.73ppb
NO2
0.16ppm
CO
AQI 38
Good
7.14μg/m³
PM2.5
34.53μg/m³
PM10
31.09ppb
O3
0.35ppb
SO2
6.02ppb
NO2
0.15ppm
CO
AQI 26
Good
4.25μg/m³
PM2.5
18.38μg/m³
PM10
27.52ppb
O3
0.12ppb
SO2
2.09ppb
NO2
0.23ppm
CO
AQI 25
Good
4.10μg/m³
PM2.5
18.00μg/m³
PM10
27.00ppb
O3
0.10ppb
SO2
2.07ppb
NO2
0.23ppm
CO
Air quality measurements for Iowa, USA meet strict US EPA standards. These measurements are collected from reliable sources, including satellites and ground-based monitoring systems. Advanced algorithms and machine learning techniques are applied to the data, factoring in variables such as traffic and population density, to ensure precision and reliability.
Source: Ambee Data Sources
Air quality data for Dubuque, Iowa is updated on an hourly basis.
The worst air quality in Dubuque, Iowa was recorded at 06:00:00 on 2026-06-07.
The best air quality in Dubuque, Iowa was recorded at 03:00:00 on 2026-06-07.
The real-time air quality index in Dubuque, Iowa is 33, currently categorized as Good.
The most common pollutant in Dubuque, Iowa is PM2.5.
If the air quality in Dubuque, Iowa is poor, limit outdoor activities and use a mask to safeguard your health.
The measured PM2.5 levels in Dubuque, Iowa at present are 5.639 μg/m3.
The current PM10 levels in Dubuque, Iowa are 20.726 μg/m3.
The current carbon monoxide (CO) level in Dubuque, Iowa is 0.181 ppm.
The current sulfur dioxide (SO2) levels in Dubuque, Iowa are 0.351 ppb.
The current ozone (O3) levels at Dubuque, Iowa is 29.164 ppm.
The current nitrogen dioxide (NO2) levels at Dubuque, Iowa is 3.655 ppb.
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