대기질 예보
대기질 데이터 제공: the Hessian State Office for Nature Conservation, Environment and Geology - (Hessisches Landesamt für Naturschutz, Umwelt und Geologie) (hlnug.de)
Note that the measurements for CO (carbon monoxide) and NO2 (nitrogen dioxide) are taken from the station: Offenbach-Untere Grenzstraße and the measurement for SO2 (sulfur dioxide) are taken from the station: Frankfurt-Schwanheim