10th International Aerosol Conference September 2 - September 7, 2018 America's Center Convention Complex St. Louis, Missouri, USA
Abstract View
Characteristics of PM2.5 and Gaseous Precursor in Urban and Background Areas in Korea
TAEHYUN PARK, Jihee Ban, Seokwon Kang, Gyutae Park, Kyunghoon Kim, Min Seok Song, Seung Hwan Lee, Jannatul Maoa, Hye Jung Shin, Jong Sung Park, Seung Myung Park, Jun Oh, Mindo Lee, Sang-Bo Lee, Jeong Soo Kim, Dong-Gil Yu, Taehyoung Lee, Hankuk University of Foreign Studies, Yongin, South Korea
Abstract Number: 1099 Working Group: Aerosol Chemistry
Abstract The Korean peninsula is a great place to study different sources of the aerosols: urban, rural and marine. In addition, Seoul is one of the large metropolitan areas in the world and has a variety of sources because half of the Korean population lives in Seoul, which comprises only 12% of the country’s area. Also, Baengnyeong island located in the west of Korean peninsula is an important place where we can observe the behavior of air pollutants emitted from Northeast Asia and measure the background concentrations of air quality in Korea. To understand the chemical composition of aerosol from long-range transport and local sources better, both particulate matter and gaseous precursors need to observation. In this study, we plan to measure the chemical compositions of PM2.5 (Na+, NH4+, K+, Mg2+, Ca2+, SO42-, NO3-, Cl-, WSOC) and gaseous precursors (HNO3, NH3, SO2) by AIM(Aerosol Ion Monitor, URG Corporation), PILS(Particle Into Liquid Sampler) coupled with TOC (Total Organic Carbon, SIEVERS 850) and gas monitors (SO2 (43C, Thermo Scientific), NH3 (EAA 911-0016, Los Gatos Research)) in the Seoul and Baengnyeong island Intensive Air Quality Monitoring Stations during the two time of intensive period (Jan. 15 – Feb. 10, 2018 and March, 2018). The AIM and PILS-TOC is providing the ionic chemical compositions of PM2.5 and the concentrations of gaseous precursors and water soluble organic carbon with 1-hour time resolution. The scientific goal of this study is to characterize chemical properties of PM2.5 and gaseous precursors to understand the role of the long-range transport from northeast Asia and influence of the local sources. The presentation will provide an overview of the ionic compounds of PM2.5 and gaseous precursors in the air pollution plume at Seoul (urban site) and Baengnyeong island (background site).
Acknowledgment: This research was supported by the National Institute of Environmental Research (NIER) and National Strategic Project-Fine Particle of the National Research Foundation of Korea (NRF) funded by the Ministry of Science and ICT (MSIT), the Ministry of Environment (ME), and the Ministry of Health and Welfare (MOHW) (2017M3D8A1092015), Korea. Additional data processing and analysis was funded by National Research Foundation of Korea (NRF-2017K2A9A2A06016241).