Worst air pollution Rijswijk, today and tomorrow

Today (21 July): Air quality in Rijswijk is fair. AQI and O3 are fair; PM2.5, PM10, NO2, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 4:00 PM (O3: 25.9/100).
Tomorrow (22 July 2026): Air quality in Rijswijk is fair. All pollutants stay as today. Pollution peaks around 4:00 PM (O3: 22.4/100). 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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Rijswijk's air quality reflects the Dutch Randstad position between The Hague and Delft adjacent to The Hague's government complex, with vehicle traffic on the A4 motorway and the surrounding Shell Netherlands headquarters and pharmaceutical research operations contributing local sources. North Sea westerlies provide maritime ventilation, while the flat Dutch polder landscape allows reasonable dispersal and the Shell corporate operations add distinctive petrochemical background emissions that make Rijswijk one of the Netherlands' more distinctively oil industry-influenced residential environments.

Today - 21 July | Pollution peaks at 16:00

AQI:

Fair

25.9/100

PM2.5 (fine particles):

Good

8.7/100

PM10 (coarse particles):

Good

3.3/100

NO2 (nitrogen dioxide):

Good

12.4/100

O3 (ozone):

Fair

25.9/100

SO2 (sulfur dioxide):

Good

1.0/100

CO (carbon monoxide):

Good

0.0/100

HCHO (formaldehyde):

Good

1.8/100

PM1 (ultrafine particles):

Good

5.8/100

Levels show the poorest local air quality during the day

Tomorrow - 22 July | Pollution peaks at 16:00

AQI:

Fair

22.4/100

PM2.5 (fine particles):

Good

8.9/100

PM10 (coarse particles):

Good

3.4/100

NO2 (nitrogen dioxide):

Good

9.1/100

O3 (ozone):

Fair

22.4/100

SO2 (sulfur dioxide):

Good

0.9/100

CO (carbon monoxide):

Good

0.0/100

HCHO (formaldehyde):

Good

1.6/100

PM1 (ultrafine particles):

Good

5.4/100

Pollen forecast in Rijswijk

View pollen forecast

Frequently Asked Questions

Is air quality bad in Rijswijk right now?

On 21 July 2026, overall air quality in Rijswijk is fair. AQI is the main air quality indicator at 25.9/100. Pollution peaks around 4:00 PM (O3: 25.9/100).

Will air quality be worse tomorrow in Rijswijk?

On 22 July 2026, air quality conditions in Rijswijk will be similar to today, with AQI forecast at fair at 22.4/100. Pollution peaks around 4:00 PM (O3: 22.4/100).

When is air pollution at its worst in Rijswijk?

For Rijswijk, 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 A4 and local industry add to emissions; the open river-delta setting means conditions rarely stay poor for long. Outside these windows, Rijswijk generally stays close to the national average for air quality.

Are air quality levels in Rijswijk 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: 21 July 2026 at 16:20 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