Worst air pollution Den Helder, today and tomorrow
Today (23 August): Air quality in Den Helder is fair. AQI and O3 are fair; PM2.5, PM10, NO2, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 5:00 PM (O3: 24.1/100).
Tomorrow (24 August 2026): Air quality in Den Helder is fair. All pollutants stay as today. Pollution peaks around 6:00 PM (O3: 25.5/100). Airmine updates local air quality forecasts four times daily.
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Den Helder's air quality benefits from its exceptional North Sea coastal exposure at the northern tip of North Holland, with some of the Netherlands' most powerful North Sea westerlies providing outstanding maritime ventilation across this major naval port city. Vehicle traffic on the A9 and the Royal Dutch Navy base operations contribute local sources, while the extraordinary North Sea exposure and the Den Helder peninsula's position on Holland's northernmost point generally maintain excellent to good coastal conditions throughout most of the year.
Today - 23 August | Pollution peaks at 17:00
AQI:
Fair
24.1/100
PM2.5 (fine particles):
Good
7.0/100
PM10 (coarse particles):
Good
2.7/100
NO2 (nitrogen dioxide):
Good
0/100
O3 (ozone):
Fair
24.1/100
SO2 (sulfur dioxide):
Good
0/100
CO (carbon monoxide):
Good
0/100
HCHO (formaldehyde):
Good
0.9/100
PM1 (ultrafine particles):
Good
4.4/100
Levels show the poorest local air quality during the day
Tomorrow - 24 August | Pollution peaks at 18:00
AQI:
Fair
25.5/100
PM2.5 (fine particles):
Good
6.0/100
PM10 (coarse particles):
Good
2.1/100
NO2 (nitrogen dioxide):
Good
0/100
O3 (ozone):
Fair
25.5/100
SO2 (sulfur dioxide):
Good
0/100
CO (carbon monoxide):
Good
0/100
HCHO (formaldehyde):
Good
1.4/100
PM1 (ultrafine particles):
Good
4.8/100
Pollen forecast in Den Helder
View pollen forecastFrequently Asked Questions
Is air quality bad in Den Helder right now?
On 23 August 2026, overall air quality in Den Helder is fair. AQI is the main air quality indicator at 24.1/100. Pollution peaks around 5:00 PM (O3: 24.1/100).
Will air quality be worse tomorrow in Den Helder?
On 24 August 2026, air quality conditions in Den Helder will be similar to today, with AQI forecast at fair at 25.5/100. Pollution peaks around 6:00 PM (O3: 25.5/100).
When is air pollution at its worst in Den Helder?
For Den Helder, air quality is most affected in spring and early summer during the birch, oak, and alder pollen peak, and on calm, hot days when traffic on the A9 and local industry add to emissions; onshore westerly winds off the North Sea keep the air moving. The calmer months in between generally keep Den Helder close to typical Dutch air quality levels.
Are air quality levels in Den Helder 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: 23 August 2026 at 20:25 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.
Some text on this page may be generated or summarised using artificial intelligence (AI). Wherever possible, AI-generated content is enriched with Airmine's proprietary data to improve its accuracy and relevance. However, AI-generated content may still contain errors, omissions, or inaccuracies.
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