Effects of aging on organic aerosol from open biomass burning smoke in aircraft and laboratory studies

Abstract. Biomass burning (BB) is a large source of primary and secondary organic aerosols (POA and SOA). This study addresses the physical and chemical evolution of BB organic aerosols. Firstly, the evolution and lifetime of BB POA and SOA signatures observed with the Aerodyne Aerosol Mass Spectrometer are investigated, focusing on measurements at high-latitudes acquired during the 2008 NASA ARCTAS mission, in comparison to data from other field studies and from laboratory aging experiments. The parameter f60, the ratio of the integrated signal at m/z 60 to the total signal in the organic component mass spectrum, is used as a marker to study the rate of oxidation and fate of the BB POA. A background level of…

• UD
  U.S. Department of Energy

  Awards: DE-SC0006035, DE-AC05-06OR23100, -AC05-06OR23100, DE-AC05
• NA
  National Aeronautics and Space Administration

  Award: NNX08AD39G
• OR
  Oak Ridge Associated Universities

  Award: DE-AC05-06OR23100
• LR
  Langley Research Center
• OR
  Oak Ridge Institute for Science and Education

  Award: DE-AC05-06OR23100