SEFIRA has the objective of creating a European coordination of transdisciplinary scientific and socio-economic resources in order to support the review and implementation of air quality legislation by the European Commission (EC) led by DG Environment. SEFIRA will coordinate some of the best scientific and socio-economic resources and will review air quality policies and legislation at the interface between environmental, economic and social sciences in order to achieve a deeper understanding of these complex issues. The main fields involved in the action will be atmospheric sciences, environmental and legal sociology, anthropology, geography and economics.