Worst air pollution Oss, today and tomorrow

Today (21 July): Air quality in Oss is fair. AQI, NO2, and O3 are fair; PM2.5, PM10, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 6:00 PM (O3: 27.2/100).
Tomorrow (22 July 2026): Air quality in Oss is fair. O3 decreases to good; all other pollutants stay as today. Pollution peaks around 6:00 AM (NO2: 27.9/100). 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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Oss's air quality reflects the flat Noord-Brabant river delta landscape, with vehicle traffic on the A50 motorway and the surrounding pharmaceutical and biotechnology manufacturing — including the major MSD/Merck facilities — contributing elevated industrial and vehicle emissions. North Sea westerlies generally provide maritime ventilation, while the flat Dutch river delta terrain allows reasonable dispersal and the pharmaceutical industry represents the most distinctive local industrial emission source.

Today - 21 July | Pollution peaks at 18:00

AQI:

Fair

27.2/100

PM2.5 (fine particles):

Good

8.2/100

PM10 (coarse particles):

Good

3.2/100

NO2 (nitrogen dioxide):

Fair

25.6/100

O3 (ozone):

Fair

27.2/100

SO2 (sulfur dioxide):

Good

1.3/100

CO (carbon monoxide):

Good

0.0/100

HCHO (formaldehyde):

Good

2.1/100

PM1 (ultrafine particles):

Good

6.8/100

Levels show the poorest local air quality during the day

Tomorrow - 22 July | Pollution peaks at 06:00

AQI:

Fair

27.9/100

PM2.5 (fine particles):

Good

8.5/100

PM10 (coarse particles):

Good

3.1/100

NO2 (nitrogen dioxide):

Fair

27.9/100

O3 (ozone):

Good

20.0/100

SO2 (sulfur dioxide):

Good

2.5/100

CO (carbon monoxide):

Good

0.0/100

HCHO (formaldehyde):

Good

1.7/100

PM1 (ultrafine particles):

Good

8.0/100

Pollen forecast in Oss

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Frequently Asked Questions

Is air quality bad in Oss right now?

On 21 July 2026, overall air quality in Oss is fair. AQI is the main air quality indicator at 27.2/100. Pollution peaks around 6:00 PM (O3: 27.2/100).

Will air quality be worse tomorrow in Oss?

On 22 July 2026, air quality conditions in Oss will be similar to today, with AQI forecast at fair at 27.9/100. Pollution peaks around 6:00 AM (NO2: 27.9/100).

When is air pollution at its worst in Oss?

For Oss, air quality is most affected across the spring and early-summer stretch during the birch, oak, and pine pollen peak, and on calm, hot days when traffic on the A50 and local industry add to emissions; the sandy Brabant landscape and scattered forest generally aid ventilation. Most weeks outside these periods bring Oss conditions close to the broader Dutch norm.

Are air quality levels in Oss 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