Air quality index

The internationally standardised air quality index (AQ index) is a measure of pollution levels. The predictions of various pollutants (e.g. ozone, nitrogen dioxide, particulate matter, ...) are included in the calculation. The level of the air quality index is based on the pollutant for which the highest concentration values are expected.

The forecasts are updated daily and are based on model simulations of the WRF-Chem model.

Current measured values of various pollutants can be found on the website of the Environment Agency Austria (Umweltbundesamt).