Stijn Janssen is currently appointed as Program Manager of VITO's Geo and Atmosphere modelling team. He obtained a degree in civil engineering and received a PhD in physics in 2002. He joined VITO's Air Quality Modelling team in 2005 and built up experience in air quality and emission modelling. He and his team are using advanced air quality models to assess air quality from local to regional scale and to support the development of air pollution mitigation strategies. He is co-chair of FAIRMODE, the European Forum for Air Quality Modelling and works in close collaboration with LiboVITO, VITO's local office in China, to bring air quality services to the Chinese market.