Add to ORKGInternational audienceThis paper reflects the work achieved for demonstrating the potentialities of Earth Observation data for the knowledge of the atmospheric pollutants concentration fields over metropolitan areas. The interaction of several scales of pollutant observations (points-measurements, streets and urban area) is a particularity of the present work. It is applied to the city of Strasbourg, France. Its objectives are to precisely define the morphological elements which influence the pollutant distribution, and spatialize the measurements with the help of satellite data, taking benefits from previous results