AAAR 32nd Annual Conference
September 30 - October 4, 2013
Oregon Convention Center
Portland, Oregon, USA
Abstract View
The Organic Characteristics of PM2.5 and TSP in Asian Dust Episodes at Urban and Background Sites in Korea
HYUNG BAE LIM, JiYi Lee, Se Pyo Lee, Eun Jin Hwang, Jin Young Kim, Hyoun-Cher Jin, Chosun University
Abstract Number: 329 Working Group: Carbonaceous Aerosols in the Atmosphere
Abstract Asian dust storm originates from deserts and loess areas in northern China and Mongolia and Southern China, Korea, and Japan are major receptor regions of Asian dust. Asian dust frequently occurs during the spring season and many studies have been reported in the world on the composition and sources of Asian dust. However, information on the organic characteristics of the dust, especially, the solvent-extractable organic compounds is still scarce. In this study, ten samples of each PM2.5 and TSP including two Asian dust episodes were collected in urban and background sites, Korea in spring 2012 and solvent extrableorganic compounds (PAHs, n-Alkanes, n-Alkanoic acids, Dicarboxylic acids and Sugars) in aerosol were analyzed in order to evaluate the organic characteristics in Asian dust. Further, major factor determining the distribution of organic compounds in Asia dust will be discussed based on the results of the backward trajectory analysis and other air pollutants characteristics.