Organic aerosol components observed in Northern Hemispheric datasets from Aerosol Mass Spectrometry

Abstract. In this study we compile and present results from the factor analysis of 43 Aerosol Mass Spectrometer (AMS) datasets (27 of the datasets are reanalyzed in this work). The components from all sites, when taken together, provide a holistic overview of Northern Hemisphere organic aerosol (OA) and its evolution in the atmosphere. At most sites, the OA can be separated into oxygenated OA (OOA), hydrocarbon-like OA (HOA), and sometimes other components such as biomass burning OA (BBOA). We focus on the OOA components in this work. In many analyses, the OOA can be further deconvolved into low-volatility OOA (LV-OOA) and semi-volatile OOA (SV-OOA). Differences in the mass spectra of these components are…

• NS
  National Science Foundation

  Awards: 0919189, ATM-0919189, 0528170
• UD
  U.S. Department of Energy

  Award: DEFG0208ER64627
• CI
  California Institute of Technology
• NO
  National Oceanic and Atmospheric Administration
• OO
  Office of Science