Highest air pollution Harderwijk, today and tomorrow
Today (30 June): Air quality in Harderwijk is fair. O3 is fair; AQI and NO2 are medium; PM2.5, PM10, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 11:00 PM (NO2: 42.1/100).
Tomorrow (1 July 2026): Air quality in Harderwijk is fair. All pollutants stay as today. Pollution peaks around 5:00 AM (NO2: 56.5/100). Airmine updates local air quality forecasts four times daily.
For long term forecasts and maps, see the Airmine app
Developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team
Harderwijk's air quality reflects the Veluwe's eastern flank position on the IJsselmeer in Gelderland, with vehicle traffic on the A28 motorway and surrounding industrial and logistics operations contributing local sources. The Veluwe's forested ridge to the west provides a natural clean-air buffer, while consistent North Sea westerlies carry relatively clean Atlantic air and the IJsselmeer's open water geometry provides natural ventilation, generally maintaining Harderwijk among the Gelderland region's more moderate urban environments.
Today - 30 June | Pollution peaks at 23:00
AQI:
Medium
42.1/100
PM2.5 (fine particles):
Good
13.8/100
PM10 (coarse particles):
Good
4.7/100
NO2 (nitrogen dioxide):
Medium
42.1/100
O3 (ozone):
Fair
25.9/100
SO2 (sulfur dioxide):
Good
3.7/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
3.6/100
PM1 (ultrafine particles):
Good
12.9/100
Levels show the poorest local air quality during the day
Tomorrow - 1 July | Pollution peaks at 05:00
AQI:
Medium
56.5/100
PM2.5 (fine particles):
Good
14.8/100
PM10 (coarse particles):
Good
4.9/100
NO2 (nitrogen dioxide):
Medium
56.5/100
O3 (ozone):
Fair
33.1/100
SO2 (sulfur dioxide):
Good
6.9/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
3.1/100
PM1 (ultrafine particles):
Good
14.6/100
Pollen forecast in Harderwijk
View pollen forecastFrequently Asked Questions
Is air quality bad in Harderwijk right now?
On 30 June 2026, overall air quality in Harderwijk is fair. O3 is the main pollutant at 25.9/100. Pollution peaks around 11:00 PM (NO2: 42.1/100).
Will air quality be worse tomorrow in Harderwijk?
On 1 July 2026, air quality conditions in Harderwijk will be similar to today, with O3 forecast at fair at 33.1/100. Pollution peaks around 5:00 AM (NO2: 56.5/100).
Are air quality levels in Harderwijk 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: 30 June 2026 at 12:38 CET (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
Developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team