Worst air pollution Hanover, today and tomorrow
Today (9 August): Air quality in Hanover is fair. O3 is fair; AQI and NO2 are medium; PM2.5, PM10, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 1:00 AM (NO2: 40.2/100).
Tomorrow (10 August 2026): Air quality in Hanover is fair. All pollutants stay as today. Pollution peaks around 6:00 PM (NO2: 40.5/100). 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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Hanover experiences air quality conditions shaped chiefly by clean rural New Hampshire air, and fall foliage season brings dense pollen but consistently clean air. Most days bring generally favorable conditions here, with occasional exceptions tied to shifting weather patterns. Local topography and prevailing winds both play a role in how quickly conditions change.
Today - 9 August | Pollution peaks at 01:00
AQI:
Medium
40.2/100
PM2.5 (fine particles):
Good
13.7/100
PM10 (coarse particles):
Good
6.1/100
NO2 (nitrogen dioxide):
Medium
40.2/100
O3 (ozone):
Fair
36.8/100
SO2 (sulfur dioxide):
Good
4.0/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
7.7/100
PM1 (ultrafine particles):
Good
10.9/100
Levels show the poorest local air quality during the day
Tomorrow - 10 August | Pollution peaks at 18:00
AQI:
Medium
40.5/100
PM2.5 (fine particles):
Good
13.4/100
PM10 (coarse particles):
Good
7.4/100
NO2 (nitrogen dioxide):
Medium
40.5/100
O3 (ozone):
Fair
31.8/100
SO2 (sulfur dioxide):
Good
4.0/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
5.4/100
PM1 (ultrafine particles):
Good
9.4/100
Pollen forecast in Hanover
View pollen forecastFrequently Asked Questions
Is air quality bad in Hanover right now?
On 9 August 2026, overall air quality in Hanover is fair. O3 is the main pollutant at 36.8/100. Pollution peaks around 1:00 AM (NO2: 40.2/100).
Will air quality be worse tomorrow in Hanover?
On 10 August 2026, air quality conditions in Hanover will be similar to today, with O3 forecast at fair at 31.8/100. Pollution peaks around 6:00 PM (NO2: 40.5/100).
When is air pollution at its worst in Hanover?
Seasonal changes shape air quality across Hanover: frequent frontal systems in spring and fall usually keep the air cleanest then, but summer heat waves, often worsened by haze drifting in from other regions, bring the year's worst air. Coastal sea breezes can offer some relief from inland summer ozone buildup.
Are air quality levels in Hanover 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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