Worst air pollution Dubuque, today and tomorrow
Today (9 August): Air quality in Dubuque is fair. AQI, NO2, and O3 are fair; PM2.5, PM10, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 7:00 AM (O3: 34.0/100).
Tomorrow (10 August 2026): Air quality in Dubuque is fair. All pollutants stay as today. Pollution peaks around 11:00 PM (NO2: 39.5/100). Airmine updates local air quality forecasts four times daily.
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Developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team
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Dubuque's air quality reflects the Mississippi River valley's bluff-lined topography in eastern Iowa, with vehicle emissions from US-20 and the surrounding manufacturing and agricultural processing industry contributing local sources. The Mississippi River valley's partial topographic enclosure between the limestone bluffs creates modest concentration under calm conditions, while prevailing westerly Iowa prairie winds provide the primary ventilation and summer regional ozone from the Midwest airshed is the primary warm-season concern.
Today - 9 August | Pollution peaks at 07:00
AQI:
Fair
34.0/100
PM2.5 (fine particles):
Good
11.9/100
PM10 (coarse particles):
Good
8.2/100
NO2 (nitrogen dioxide):
Fair
24.0/100
O3 (ozone):
Fair
34.0/100
SO2 (sulfur dioxide):
Good
2.7/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
4.1/100
PM1 (ultrafine particles):
Good
8.7/100
Levels show the poorest local air quality during the day
Tomorrow - 10 August | Pollution peaks at 23:00
AQI:
Fair
39.5/100
PM2.5 (fine particles):
Good
14.7/100
PM10 (coarse particles):
Good
8.5/100
NO2 (nitrogen dioxide):
Fair
39.5/100
O3 (ozone):
Fair
33.4/100
SO2 (sulfur dioxide):
Good
3.9/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
6.7/100
PM1 (ultrafine particles):
Good
9.5/100
Pollen forecast in Dubuque
View pollen forecastAir quality forecasts for neighbourhoods and landmarks in Dubuque
Frequently Asked Questions
Is air quality bad in Dubuque right now?
On 9 August 2026, overall air quality in Dubuque is fair. AQI is the main air quality indicator at 34.0/100. Pollution peaks around 7:00 AM (O3: 34.0/100).
Will air quality be worse tomorrow in Dubuque?
On 10 August 2026, air quality conditions in Dubuque will be similar to today, with AQI forecast at fair at 39.5/100. Pollution peaks around 11:00 PM (NO2: 39.5/100).
When is air pollution at its worst in Dubuque?
Conditions in Dubuque vary noticeably across the seasons, as the calmest air usually arrives in winter, between planting and harvest dust events; by contrast, summer heat and humidity drive ozone formation, and agricultural dust can spike particulate levels during planting and harvest. Wide-open terrain generally helps disperse pollution quickly once the wind picks up.
Are air quality levels in Dubuque based on measurements or forecasts?
It is forecasts derived by downscaling forecasts provided by EU’s Copernicus Atmosphere Monitoring Service (CAMS) by taking into account local conditions such as traffic patterns. CAMS bases its forecast on satellite measurements of particles and chemical compounds in the atmosphere. Airmine’s services were developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team.
Why doesn’t the forecast always reflect wildfire impacts?
Airmine’s forecast uses CAMS (Copernicus Atmosphere Monitoring Service) as its background atmospheric model. While CAMS includes wildfire emissions, these are derived from satellite observations and are not available in real time. During rapidly evolving wildfire events, there may therefore be a delay before increased emissions are incorporated into the model. As a result, the forecast may temporarily underestimate PM₂.₅ and other pollutants associated with wildfire smoke.
During rapidly evolving wildfire events, CAMS may lag by approximately 1–2 days before increased wildfire emissions are fully represented, which can lead to temporary underestimation of PM₂.₅ concentrations in Airmine’s forecast.
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Data provided by Airmine — Last update: 10 August 2026 at 02:34 CEST (Data is updated four times daily.)
This forecast is produced independently using Airmine's own atmospheric data and models.
Unless explicitly made clear, the content on this site has not been paid for by external organisations and is Airmine's sole responsibility.
Disclaimer: Forecasts are provided for informational purposes only and should not be relied upon as medical advice. Actual pollen and air quality conditions may vary from the forecast. If you have allergies, asthma, or another medical condition, consult a healthcare professional. Please see our Terms of Service for important information about limitations of liability.
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