Worst air pollution Sindelfingen, today and tomorrow

Today (21 July): Air quality in Sindelfingen is fair. AQI and O3 are fair; PM2.5, PM10, NO2, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 7:00 PM (O3: 31.0/100).
Tomorrow (22 July 2026): Air quality in Sindelfingen is medium. AQI improves to medium; O3 decreases to medium; all other pollutants stay as today. Pollution peaks around 4:00 PM (O3: 40.8/100). 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

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Sindelfingen's air quality reflects the Stuttgart metropolitan area's southern industrial corridor, with the Mercedes-Benz headquarters complex generating industrial and vehicle testing emissions alongside traffic on the A81. Stuttgart's notorious valley inversion problem affects the whole metropolitan ring, while the Schönbuch forest to the south offers limited direct ventilation benefit for the valley floor.

Today - 21 July | Pollution peaks at 19:00

AQI:

Fair

31.0/100

PM2.5 (fine particles):

Good

6.1/100

PM10 (coarse particles):

Good

2.0/100

NO2 (nitrogen dioxide):

Good

6.2/100

O3 (ozone):

Fair

31.0/100

SO2 (sulfur dioxide):

Good

0.3/100

CO (carbon monoxide):

Good

0.0/100

HCHO (formaldehyde):

Good

3.5/100

PM1 (ultrafine particles):

Good

6.6/100

Levels show the poorest local air quality during the day

Tomorrow - 22 July | Pollution peaks at 16:00

AQI:

Medium

40.8/100

PM2.5 (fine particles):

Good

7.9/100

PM10 (coarse particles):

Good

2.5/100

NO2 (nitrogen dioxide):

Good

7.5/100

O3 (ozone):

Medium

40.8/100

SO2 (sulfur dioxide):

Good

0.7/100

CO (carbon monoxide):

Good

0.0/100

HCHO (formaldehyde):

Good

4.3/100

PM1 (ultrafine particles):

Good

8.5/100

Pollen forecast in Sindelfingen

View pollen forecast

Frequently Asked Questions

Is air quality bad in Sindelfingen right now?

On 21 July 2026, overall air quality in Sindelfingen is fair. AQI is the main air quality indicator at 31.0/100. Pollution peaks around 7:00 PM (O3: 31.0/100).

Will air quality be worse tomorrow in Sindelfingen?

On 22 July 2026, air quality conditions in Sindelfingen will be better than today, with AQI forecast at medium at 40.8/100. Pollution peaks around 4:00 PM (O3: 40.8/100).

When is air pollution at its worst in Sindelfingen?

In Sindelfingen, the days to watch are when chestnut, ash, and linden pollen peaks, or calm, hot days when local sources build up; vehicle traffic on local and regional roads is a modest local source. The warmer, more continental climate here brings a modest ragweed presence from mid-August. Breezier days generally bring the most comfortable conditions.

Are air quality levels in Sindelfingen 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