Characterization of the South Atlantic marine boundary layer aerosol using an aerodyne aerosol mass spectrometer

摘要: Measurements of the submicron fraction atmospheric aerosol in marine boundary layer were performed from January to March 2007 (Southern Hemisphere summer) onboard French research vessel Marion Dufresnein Southern Atlantic and Indian Ocean (20 S-60 S, 70 W-60 E). We used an Aerodyne High- Resolution-Time-of-Flight AMS characterize chemi- cal composition measure species-resolved size distri- butions non-refractory components submi- cron range. Within "standard" compounds (ammonium, chloride, nitrate, sulfate, organics) "sulfate" is domi- nant species with concentra- tions ranging between 50 ng m 3 3µg . Further- more, what seen as by likely com- prised mostly sulfuric acid.