Current Status and New Concepts of Gasoline Vehicle Emission Control for Organic, Metallic and Particulate Non-Legislative Pollutants (GASOMEP)

In 2020 more than 50 million gasoline direct injection (GDI) vehicles will operate on European roads. The majority of these vehicles will not be equipped with particle filters and will release trillions of inhalable, persistent and toxic nanoparticles smaller than 100 nm. In the GASOMEP project we study several GDI vehicles under transient and steady driving conditions with varying converter technologies and fuels. With the support from our industrial partners, we also study four prototype gasoline particle filters (GPFs).

Our focus is on emissions of toxic and environmentally relevant pollutants. Particle characterization included size, number distribution and metal content. Emissions of carcinogenic compounds, especially the polycyclic aromatic hydrocarbons (PAHs) and their nitrated forms are studied to assess the genotoxic potential of these exhausts and the effectiveness of filters on particles and carcinogenic compounds. In addition, the secondary organic aerosol formation of GDI exhausts is investigated in smog chamber and flow reactor experiments to assess the impact on secondary ambient particle formation.

The three year project is a joint activity of four teams of the Universities of Applied Sciences in Biel (UASB) and Northwestern Switzerland (UASNW), the PSI and Empa with support of CCEM. If you want to learn more on the impact of GDI vehicles, contact us with a request for the final report.