• 14:00 Accounting for the arrival of Chaiten's volcanic material to the Antarctic Peninsula.
  Presenter: P. Cid-Aguero
• 14:15 Clear-sky effective emissivity under surface inversion at Dome C, Antarctica
  Presenter: M. Busetto
• 14:30 Overview of Sun Photometer Measurements of Aerosol Properties in Scandinavia and Svalbard
  Presenter: C. Toledano
• 14:45 Sources and acidity of sulfate-nitrate-ammonium aerosol in the Arctic in spring
  Presenter: J.A. Fisher
• 15:00 Aerosol, ozone, and VOC concentrations at the Finnish Antarctic reaserch station Aboa during the IPY campaign in 2007/2008
  Presenter: A. Virkkula
• 15:15 Atmospheric Transport to Troll Antarctic Observatory Since 2007: Biomass Burning Aerosol and More?
  Presenter: M. Fiebig
• 15:30 Simulation of transport of biomass burning emissions into the Arctic in April 2008
  Presenter: A. Lupu