AAAR 31st Annual Conference
October 8-12, 2012
Hyatt Regency Minneapolis
Minneapolis, Minnesota, USA
Abstract View
Characteristics of Carbonaceous Compounds for PM2.5 Aerosols in the Gyeongsan Area, Korea
INJO HWANG, Yeong-Jin Jeong, Min-Jae Jeong, Daegu University
Abstract Number: 278 Working Group: Urban Aerosols
Abstract Carbonaceous compounds such as elemental carbon (EC), organic carbon (OC), and a small quantity of carbonate carbon (CC) constitute a significant portion (10 ~ 70 % of the mass) of the atmospheric aerosol mass in the various areas. Carbonaceous compounds play a major role in serious atmospheric pollution such as visibility degradation and climate chance, and these compounds has adverse human health effects. Elemental carbon originates from incomplete combustion processes of fossil fuel. On the other hand, organic carbon directly emitted in particulate matter (primary OC) or formed in the atmosphere from products of gas phase photochemical reactions (secondary OC). The objective of this study was to estimate the trend and characteristics for carbonaceous compounds concentration of PM2.5 in the sampling area during the sampling period. In this study, PM2.5 samples were collected by PM2.5 sampler from September 2010 to December 2011 at the Daegu University, Gyeongsan-si, Korea. The PM2.5 samples were collected on Teflon, nylon, and quartz filters every 3 days. The quartz filters were used for analysis of OC/EC by TOR method. TOR method following the IMPROVE protocol using the DRI analyzer (DRI Model 2001 Thermal/Optical carbon analysis). Detailed estimation of characteristics of carbonaceous compounds for PM2.5 will be presented.
This research was supported by Basic Science Research Program through the National Research Foundation of Korea (NFR) funded by the Ministry of Education, Science and Technology (grant No: 2011-0026834).