Submicrometre aerosol emissions from sea spray and road traffic

This thesis combines laboratory and field experiments, and process modelling in an effort to better quantify the submicrometre aerosol emissions and to understand some of the processes in the atmosphere. A parameterisation was derived for the source flux of sea salt particles in the size range 0.02-2.8 micrometres dry diameter. Comparisons with the total aerosol emissions suggest that in these emissions organic carbon and sea salt are internally mixed in the same particles. Finally an aerosol dynamics model was modified for marine conditions. Measurements show that the major part of the aerosol fluxes is due to road traffic emissions. Both an emission factor for the whole fleet mix in Stockholm and separate emission factors for light- and heavy-duty vehicles (HDV) were deduced. The result shows that during weekdays 70-80 per cent of the emissions come from HDV.

Language

  • English

Media Info

  • Pagination: 24p

Subject/Index Terms

Filing Info

  • Accession Number: 01387415
  • Record Type: Publication
  • Source Agency: ARRB
  • ISBN: 9789171554802
  • Files: ATRI
  • Created Date: Aug 22 2012 10:25PM