空氣質量預報
空氣品質數據提供者: the Hessian State Office for Nature Conservation, Environment and Geology - (Hessisches Landesamt für Naturschutz, Umwelt und Geologie) (hlnug.de)
Note that the measurements for O3 (ozone) and SO2 (sulfur dioxide) are taken from the station: Kassel-Mitte