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. The EC has now given increased attention to the socio-economic dimension of air quality policies in order to improve their effectiveness and acceptability. 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. Individual behaviours and choices will be analysed in a socio-economic context ranging from the local to the European level. The main fields involved in the action will be atmospheric sciences, environmental and legal sociology, anthropology, geography and economics.The integration of disciplines, the relationship with the most relevant stakeholders and an effective coordination between the SEFIRA consortium and other European projects in the same field will be a priority. The project strategy will support the development of a new European appraisal of problems and resources in the field, will deploy a pilot survey and a test of policy implementation by innovative models of individual choices analysis and ecosystem services valuation. Stakeholders will be involved from the beginning of the project in a process of dialogue and cooperative problem solving in order to ensure relevance and robustness as the work progresses from local to European level.