Barata, FilipeFialho, Paulo2012-10-112012-10-112006F. Barata, P. Fialho, 2006, «Black Carbon (BC) mass concentrations monitoring at North Atlantic Marine Boundary Layer (MBL)», "6th International Symposium on Advanced Environmental Monitoring" proceedings, Heidelberg, 26-30 June, Germany.http://hdl.handle.net/10400.3/1505Proceedings of the 6th International Symposium on Advanced Environmental Monitoring, Heidelberg, 26-30 June, Germany.The PICO-NARE observatory is an experimental site on the Pico Island (38.470º; 28.404º; 2225 m altitude) in the Azores Archipelago, developed to provide a base for free troposphere measurements (Richard & Fialho, 2002). One Aethalometer (AE31) was used to determine the aerosol seasonal variability for the Central North Atlantic region. Application of the separation technique, proposed by Fialho et al. (2005,2006), aloud the establishment of the seasonal cycles for BC and Dust.engBlack CarbonNorth Atlanticconference object2012-10-08