Enhancing air quality data from multiple platforms towards geospatial health-related information in the intra-urban environment.

This work exploits and combines the assets of multiple Earth Observation (EO) platforms towards air pollution health-risk profiling in the urban environment. Emphasis is put on assessment of population exposure to ambient concentrations above the newly launched (late 2021) WHO air quality guidelines for NO2 and PM2.5, and on the mapping in high spatial analysis (below 1 km). The city demonstrator is Athens (Greece), during a recent year, free of Covid-related activity restrictions.