Article from 18.11.2025 | Last changed: 17.11.2025
The air quality index
… measurements of ozone (O 3 ), nitrogen dioxide (NO 2 ), particulate matter (PM 10 and PM 2.5 ), and sulfur dioxide (SO 2 ). Using the most recent hourly data from a station, … measurement at that station is not required. Behavioural tips The following table shows the behavioral tips of the German Environment Agency. Because air …