Worst air pollution Erfurt, today and tomorrow

Today (21 July): Air quality in Erfurt 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: 27.9/100).
Tomorrow (22 July 2026): Air quality in Erfurt is fair. All pollutants stay as today. Pollution peaks around 1:00 PM (O3: 24.4/100). 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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Erfurt's air quality reflects the Gera river valley in the Thuringian Basin, with vehicle traffic on the A4 and A71 motorways and the surrounding manufacturing and food-processing industry contributing local sources. The Thuringian Forest to the south creates some topographic variation, while the open basin setting generally allows reasonable pollutant dispersal across the state capital.

Today - 21 July | Pollution peaks at 17:00

AQI:

Fair

27.9/100

PM2.5 (fine particles):

Good

6.2/100

PM10 (coarse particles):

Good

2.1/100

NO2 (nitrogen dioxide):

Good

10.1/100

O3 (ozone):

Fair

27.9/100

SO2 (sulfur dioxide):

Good

0.7/100

CO (carbon monoxide):

Good

0.0/100

HCHO (formaldehyde):

Good

1.9/100

PM1 (ultrafine particles):

Good

5.4/100

Levels show the poorest local air quality during the day

Tomorrow - 22 July | Pollution peaks at 13:00

AQI:

Fair

24.4/100

PM2.5 (fine particles):

Good

6.3/100

PM10 (coarse particles):

Good

2.3/100

NO2 (nitrogen dioxide):

Good

13.1/100

O3 (ozone):

Fair

24.4/100

SO2 (sulfur dioxide):

Good

0.8/100

CO (carbon monoxide):

Good

0.0/100

HCHO (formaldehyde):

Good

2.2/100

PM1 (ultrafine particles):

Good

5.0/100

Pollen forecast in Erfurt

View pollen forecast

Frequently Asked Questions

Is air quality bad in Erfurt right now?

On 21 July 2026, overall air quality in Erfurt is fair. AQI is the main air quality indicator at 27.9/100. Pollution peaks around 5:00 PM (O3: 27.9/100).

Will air quality be worse tomorrow in Erfurt?

On 22 July 2026, air quality conditions in Erfurt will be similar to today, with AQI forecast at fair at 24.4/100. Pollution peaks around 1:00 PM (O3: 24.4/100).

When is air pollution at its worst in Erfurt?

In Erfurt, air quality dips most noticeably when beech, spruce, and oak pollen peaks, or on hot, still days when local emissions build up; typical local traffic patterns add only a modest contribution. From mid-August, this continental region typically sees a modest ragweed presence. Calm, still days tend to bring the least comfortable conditions overall.

Are air quality levels in Erfurt 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