Worst air pollution Ratzersdorf - Sankt Pölten, today and tomorrow
Today (16 July): Air quality in Ratzersdorf is fair. NO2 is fair; AQI and O3 are medium; PM2.5, PM10, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 5:00 PM (O3: 52.2/100).
Tomorrow (17 July 2026): Air quality in Ratzersdorf is fair. All pollutants stay as today. Pollution peaks around 12:00 PM (O3: 53.9/100). 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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Ratzersdorf's air quality reflects its position along the Traisen river north of central St. Pölten, with vehicle traffic on regional roads the primary local emission source.
Today - 16 July | Pollution peaks at 17:00
AQI:
Medium
52.2/100
PM2.5 (fine particles):
Good
10.3/100
PM10 (coarse particles):
Good
3.9/100
NO2 (nitrogen dioxide):
Fair
23.7/100
O3 (ozone):
Medium
52.2/100
SO2 (sulfur dioxide):
Good
2.9/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
6.3/100
PM1 (ultrafine particles):
Good
12.7/100
Levels show the poorest local air quality during the day
Tomorrow - 17 July | Pollution peaks at 12:00
AQI:
Medium
53.9/100
PM2.5 (fine particles):
Good
14.9/100
PM10 (coarse particles):
Good
4.8/100
NO2 (nitrogen dioxide):
Fair
25.8/100
O3 (ozone):
Medium
53.9/100
SO2 (sulfur dioxide):
Good
1.1/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
8.9/100
PM1 (ultrafine particles):
Good
19.4/100
Other Landmarks in Sankt Pölten
Frequently Asked Questions
Is air quality bad in Ratzersdorf right now?
On 16 July 2026, overall air quality in Ratzersdorf is fair. NO2 is the main pollutant at 23.7/100. Pollution peaks around 5:00 PM (O3: 52.2/100).
Will air quality be worse tomorrow in Ratzersdorf?
On 17 July 2026, air quality conditions in Ratzersdorf will be similar to today, with NO2 forecast at fair at 25.8/100. Pollution peaks around 12:00 PM (O3: 53.9/100).
When is air pollution at its worst in Ratzersdorf?
At Ratzersdorf, winter mornings bring the worst air quality, as vehicle traffic and surrounding farmland activity build up under a valley inversion that's common in this part of Lower Austria. Summer's stronger airflow usually clears things considerably, save for the odd ozone spike in prolonged heat. Spring and autumn generally sit somewhere in the middle.
Are air quality levels in Ratzersdorf 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