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)
52
Moderate
Dubuque, Iowa
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
10.15 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
27.68 μg/m³
0
55
155
255
425
605+
20.65 ppb
0
55
71
86
201
201+
0.40 ppb
0
36
76
186
605
1005+
4.98 ppb
0
54
101
361
1250
2050+
0.17 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Dubuque, Iowa
Dubuque, Iowa
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AQI 44
Good
8.22μg/m³
PM2.5
27.24μg/m³
PM10
19.06ppb
O3
0.45ppb
SO2
5.00ppb
NO2
0.17ppm
CO
AQI 56
Moderate
11.77μg/m³
PM2.5
51.86μg/m³
PM10
20.85ppb
O3
0.27ppb
SO2
6.38ppb
NO2
0.18ppm
CO
AQI 49
Good
8.99μg/m³
PM2.5
43.40μg/m³
PM10
20.11ppb
O3
0.53ppb
SO2
6.15ppb
NO2
0.16ppm
CO
AQI 54
Moderate
11.25μg/m³
PM2.5
23.68μg/m³
PM10
20.22ppb
O3
0.50ppb
SO2
6.17ppb
NO2
0.16ppm
CO
AQI 49
Good
8.79μg/m³
PM2.5
38.71μg/m³
PM10
18.29ppb
O3
0.19ppb
SO2
4.85ppb
NO2
0.21ppm
CO
AQI 49
Good
8.60μg/m³
PM2.5
38.00μg/m³
PM10
18.27ppb
O3
0.19ppb
SO2
4.84ppb
NO2
0.21ppm
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 09:00:00 on 2025-12-06.
The best air quality in Dubuque, Iowa was recorded at 12:00:00 on 2025-12-07.
The real-time air quality index in Dubuque, Iowa is 52, currently categorized as Moderate.
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 10.155 μg/m3.
The current PM10 levels in Dubuque, Iowa are 27.685 μg/m3.
The current carbon monoxide (CO) level in Dubuque, Iowa is 0.169 ppm.
The current sulfur dioxide (SO2) levels in Dubuque, Iowa are 0.403 ppb.
The current ozone (O3) levels at Dubuque, Iowa is 20.649 ppm.
The current nitrogen dioxide (NO2) levels at Dubuque, Iowa is 4.976 ppb.
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