Kapitel ”Traffic – an environmental problem that just keeps rolling on” av Ida Järlskog och Mats Gustafsson vid Statens väg- och transportforskningsinstitut (VTI).

Particles are monitored through the Swedish Environmental Protection Agency's national environmental monitoring programme and locally by municipalities. Monitoring trends in concentrations over time and knowing the sources of particles are crucial for developing effective measures. There are significant socio-economic benefits from reducing particle concentrations. This report is part of the Swedish Environmental Protection Agency’s series Air & Environment within the national environmental monitoring programme. The report’s authors include stakeholders active within the national air quality monitoring and researchers and experts at universities, research institutes and public agencies. A great deal of knowledge exists about particles, and the aim of this publication is to convey some of this knowledge so that we can work together to achieve cleaner air.