Worst air pollution Dover, today and tomorrow
Today (16 July): 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 11:00 AM (O3: 33.2/100).
Tomorrow (17 July 2026): Air quality in Dover is fair. All pollutants stay as today. Pollution peaks around 8:00 AM (O3: 27.6/100). 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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Dover's air quality benefits from the New Hampshire Seacoast region's position, with consistent Atlantic maritime breezes providing reliable ventilation a short distance from the coast. Vehicle emissions from the Spaulding Turnpike are the primary local source, while the broader Boston-Portsmouth regional airshed contributes limited upwind ozone and the Cocheco River valley's modest topographic enclosure generally maintains good conditions throughout most of the year.
Today - 16 July | Pollution peaks at 11:00
AQI:
Fair
33.2/100
PM2.5 (fine particles):
Good
8.3/100
PM10 (coarse particles):
Good
4.7/100
NO2 (nitrogen dioxide):
Good
17.6/100
O3 (ozone):
Fair
33.2/100
SO2 (sulfur dioxide):
Good
1.0/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
5.8/100
PM1 (ultrafine particles):
Good
5.7/100
Levels show the poorest local air quality during the day
Tomorrow - 17 July | Pollution peaks at 08:00
AQI:
Fair
27.6/100
PM2.5 (fine particles):
Good
5.3/100
PM10 (coarse particles):
Good
2.1/100
NO2 (nitrogen dioxide):
Good
12.5/100
O3 (ozone):
Fair
27.6/100
SO2 (sulfur dioxide):
Good
1.1/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
2.9/100
PM1 (ultrafine particles):
Good
3.8/100
Pollen forecast in Dover
View pollen forecastFrequently Asked Questions
Is air quality bad in Dover right now?
On 16 July 2026, overall air quality in Dover is fair. AQI is the main air quality indicator at 33.2/100. Pollution peaks around 11:00 AM (O3: 33.2/100).
Will air quality be worse tomorrow in Dover?
On 17 July 2026, air quality conditions in Dover will be similar to today, with AQI forecast at fair at 27.6/100. Pollution peaks around 8:00 AM (O3: 27.6/100).
When is air pollution at its worst in Dover?
Conditions in Dover vary noticeably across the seasons. Typically, the cleanest conditions typically arrive with the more unsettled weather of spring and autumn, while summer heat and regional haze drifting up from the Midwest and South drive ozone spikes. Coastal sea breezes can offer some relief from inland summer ozone buildup.
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.
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Data provided by Airmine — Last update: 16 July 2026 at 10:33 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.
For long term forecasts and maps, see the Airmine app