AAAR 32nd Annual Conference
September 30 - October 4, 2013
Oregon Convention Center
Portland, Oregon, USA
Abstract View
Long Range Transport of Biomass Burning Emissions based on Organic Molecular Markers and Carbonaceous Thermal Distribution
MIN-SUK BAE, Mokpo National University
Abstract Number: 453 Working Group: Carbonaceous Aerosols in the Atmosphere
Abstract Semi-continuous organic carbon (OC), elemental carbon (EC), and organic molecular markers were analyzed with the thermal optical transmittance method at the Gosan supersite (on Jeju Island, Korea), which has been widely used as a regional background site for East Asia. The Carbonaceous Thermal Distribution (CTD), which provides detailed carbon signature characteristics relative to analytical temperature, was used to improve the carbon fractionation of the analytical method. Ground-based measurements were conducted from October 25 to November 5 of 2010. During the sampling period, one high OC concentration event and two characteristic periods were observed. Considering the thermal distribution patterns, the relationship between the EC and black carbon (BC) by optical measurements, the backward trajectories, the aerosol optical thickness, and the organic molecular markers, such as levoglucosan, PAHs, and organic acids, we concluded that the event was influenced by the long-range transport of biomass from burning emissions.
This study discusses the CTD analysis with organic molecular marker concentrations, extracts and interprets additional carbon fractions from a semi-continuous data set, and provides knowledge regarding the origin of carbon sources and their behaviors.