Worst air pollution Castricum, today and tomorrow
Today (16 July): Air quality in Castricum 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: 30.8/100).
Tomorrow (17 July 2026): Air quality in Castricum is fair. NO2 increases to fair; all other pollutants stay as today. Pollution peaks around 5:00 PM (O3: 33.2/100). 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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Castricum, known locally as a wooded dune village, sees air quality conditions typical of Noord-Holland, as vehicles on the A9 and the town's own industry make up the bulk of local emissions. With the coastal dune reserve close by supporting air movement, and Bergen and the PWN dune water-catchment area shaping the local climate, conditions generally track the wider Dutch average.
Today - 16 July | Pollution peaks at 17:00
AQI:
Fair
30.8/100
PM2.5 (fine particles):
Good
8.8/100
PM10 (coarse particles):
Good
3.0/100
NO2 (nitrogen dioxide):
Good
18.3/100
O3 (ozone):
Fair
30.8/100
SO2 (sulfur dioxide):
Good
1.1/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
2.5/100
PM1 (ultrafine particles):
Good
7.6/100
Levels show the poorest local air quality during the day
Tomorrow - 17 July | Pollution peaks at 17:00
AQI:
Fair
33.2/100
PM2.5 (fine particles):
Good
9.5/100
PM10 (coarse particles):
Good
3.5/100
NO2 (nitrogen dioxide):
Fair
22.0/100
O3 (ozone):
Fair
33.2/100
SO2 (sulfur dioxide):
Good
1.4/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
1.9/100
PM1 (ultrafine particles):
Good
7.4/100
Pollen forecast in Castricum
View pollen forecastFrequently Asked Questions
Is air quality bad in Castricum right now?
On 16 July 2026, overall air quality in Castricum is fair. AQI is the main air quality indicator at 30.8/100. Pollution peaks around 5:00 PM (O3: 30.8/100).
Will air quality be worse tomorrow in Castricum?
On 17 July 2026, air quality conditions in Castricum will be similar to today, with AQI forecast at fair at 33.2/100. Pollution peaks around 5:00 PM (O3: 33.2/100).
When is air pollution at its worst in Castricum?
The main times to watch for Castricum are the birch, oak, and alder pollen peak across the spring and early-summer stretch, and hot, still days when local traffic on the A9 and industry emissions build up; the open coastal position means pollutants rarely linger long. Most weeks outside these periods bring Castricum conditions close to the broader Dutch norm.
Are air quality levels in Castricum 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.
Want to see air quality forecasts for other cities in Netherlands?
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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