Partners Université de Rennes 1 – Coordinator Airbreizh – Surveillance of Brittany air quality association, branch of the French national air surveillance network AmpliSIM – SME specialized in pollution numerical simulation CNRS / IDRIS – Institute for Development and Resources in Intensive Scientific Computing GENCI – Supercomputing centres association Keolis – Public transport operator for Rennes Metropole Neovia – SME specialized in HPC and project management Rennes Métropole – Local authority in charge of the Service Public Métropolitain de la Donnée (SPMD) Ryax Technologies – SME providing Data Analytics workflows’ automation and seamless orchestration on hybrid distributed infrastructures UCit – SME providing HPC as a Service The consortium also calls upon the expertise of l’Ecole Centrale de Lyon (SIRANE urban air pollution modelling software).