Worst air pollution Dover, today and tomorrow
Today (9 August): Air quality in Dover is fair. AQI and O3 are fair; PM2.5, PM10, NO2, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 12:00 PM (O3: 35.2/100).
Tomorrow (10 August 2026): Air quality in Dover is fair. All pollutants stay as today. Pollution peaks around 8:00 AM (O3: 35.7/100). Airmine updates local air quality forecasts four times daily.
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Dover's air quality in Delaware reflects the flat coastal plain terrain, with vehicle emissions from US-13 and Dover Air Force Base's military aviation contributing elevated NOₓ and aviation PM2.5. The flat Delaware plain allows reasonable dispersal, while the broader mid-Atlantic regional airshed contributes summer ozone from the Baltimore-Washington corridor.
Today - 9 August | Pollution peaks at 12:00
AQI:
Fair
35.2/100
PM2.5 (fine particles):
Good
13.9/100
PM10 (coarse particles):
Good
5.3/100
NO2 (nitrogen dioxide):
Good
14.4/100
O3 (ozone):
Fair
35.2/100
SO2 (sulfur dioxide):
Good
4.3/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
1.7/100
PM1 (ultrafine particles):
Good
9.6/100
Levels show the poorest local air quality during the day
Tomorrow - 10 August | Pollution peaks at 08:00
AQI:
Fair
35.7/100
PM2.5 (fine particles):
Good
12.9/100
PM10 (coarse particles):
Good
5.3/100
NO2 (nitrogen dioxide):
Good
10.9/100
O3 (ozone):
Fair
35.7/100
SO2 (sulfur dioxide):
Good
4.4/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
2.0/100
PM1 (ultrafine particles):
Good
9.0/100
Pollen forecast in Dover
View pollen forecastFrequently Asked Questions
Is air quality bad in Dover right now?
On 9 August 2026, overall air quality in Dover is fair. AQI is the main air quality indicator at 35.2/100. Pollution peaks around 12:00 PM (O3: 35.2/100).
Will air quality be worse tomorrow in Dover?
On 10 August 2026, air quality conditions in Dover will be similar to today, with AQI forecast at fair at 35.7/100. Pollution peaks around 8:00 AM (O3: 35.7/100).
When is air pollution at its worst in Dover?
Dover follows a fairly predictable seasonal air quality pattern. In short, the cleanest stretch of the year usually comes in winter, whereas the hottest, most humid summer weeks bring the year's highest ozone readings. Dense urban traffic corridors add a persistent background level of pollution that varies less by season than ozone does.
Are air quality levels in Dover 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: 9 August 2026 at 20:27 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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