Johan Øvrevik,NIPH, Oslo, Norway. Presentation on ULTRHAS, and EC funded project on the health threats posed by nanoparticles from different transport sources and that was aimed to provide guidance for policy development to improve air quality and health

Xavier Querol, IDAEA-CSIC, Barcelona, Spain, Expert in air pollution, aerosols, and health impacts, advising EU air quality policy

Ulf Olofsson, KTH, Stockholm, Sweden, expert in on particle emission, focusing on friction, wear, and particle emissions from transport systems

Christoph Knote, Augsburg University, Germany, Expert in atmospheric modeling, air quality, and chemistry-climate interactions