Worst air pollution Alsergrund - Vienna, today and tomorrow
Today (16 July): Air quality in Alsergrund is poor. AQI and O3 are poor; NO2 is fair; PM2.5, PM10, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 4:00 PM (O3: 63.7/100).
Tomorrow (17 July 2026): Air quality in Alsergrund is fair. AQI improves to medium; PM2.5 increases to fair; NO2 decreases to medium; O3 decreases to medium; HCHO increases to fair; PM1 increases to fair; all other pollutants stay as today. Pollution peaks around 12:00 PM (O3: 57.1/100). 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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Alsergrund's air quality benefits from its university-district character with moderate traffic, alongside the Sigmund-Freud-Park's green buffer. Vehicle traffic on the Gürtel ring road contributes background emissions.
Today - 16 July | Pollution peaks at 16:00
AQI:
Poor
63.7/100
PM2.5 (fine particles):
Good
14.5/100
PM10 (coarse particles):
Good
5.1/100
NO2 (nitrogen dioxide):
Fair
38.1/100
O3 (ozone):
Poor
63.7/100
SO2 (sulfur dioxide):
Good
5.6/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
18.0/100
PM1 (ultrafine particles):
Good
18.7/100
Levels show the poorest local air quality during the day
Tomorrow - 17 July | Pollution peaks at 12:00
AQI:
Medium
57.1/100
PM2.5 (fine particles):
Fair
20.1/100
PM10 (coarse particles):
Good
6.2/100
NO2 (nitrogen dioxide):
Medium
46.4/100
O3 (ozone):
Medium
57.1/100
SO2 (sulfur dioxide):
Good
3.4/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Fair
20.6/100
PM1 (ultrafine particles):
Fair
25.0/100
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Frequently Asked Questions
Is air quality bad in Alsergrund right now?
On 16 July 2026, overall air quality in Alsergrund is poor. AQI is the main air quality indicator at 63.7/100. Pollution peaks around 4:00 PM (O3: 63.7/100).
Will air quality be worse tomorrow in Alsergrund?
On 17 July 2026, air quality conditions in Alsergrund will be better than today, with PM1 forecast at fair at 25.0/100. Pollution peaks around 12:00 PM (O3: 57.1/100).
When is air pollution at its worst in Alsergrund?
At Alsergrund, air quality dips most on windless winter days, as vehicle traffic and residential heating across the city accumulate under the kind of inversion common to the Danube basin. Summer's stronger winds and rain help clear the air, though occasional ozone spikes occur in prolonged heat. Spring and autumn are typically the mildest, most stable months.
Are air quality levels in Alsergrund 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.
Want to see air quality forecasts for other cities in Austria?
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Data provided by Airmine — Last update: 16 July 2026 at 10:33 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