Dr Gustafsson is a senior researcher at the Swedish National Road and Transport Research Institute (VTI). He has a doctor’s degree in Physical Geography from Gothenburg University with a thesis on “Marine Aerosols in Southern Sweden”. His research at VTI mainly concerns transport related particulate pollution with an emphasis on non-exhaust particles, road dust and microplastics. Since 2000 he has been the project leader of a large number of research projects dealing with particle emissions, particle properties, health effects and mitigation. Research concerns road as well as railroad pollution. Since 2018, a strong focus has been microplastic pollution from road traffic, mainly tyre abrasion and tyr and road wear particle emissions, e.g. within EU-projects uCARe, LEON-T and currently NEEVE. Dr Gustafsson has also, together with colleagues at VTI, developed the sampler WDS (Wet Dust Sampler) and other innovative equipment to sample and study non-exhaust particles.