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Characteristics of PM2.5 in Gyeongsan Using Statistical Analysis

통계분석을 이용한 경산 지역의 초미세먼지(PM2.5) 농도 특성 파악

  • Li, Kai Chao (Department of Environmental Engineering, Daegu University) ;
  • Hwang, InJo (Department of Environmental Engineering, Daegu University)
  • 이개초 (대구대학교 환경공학과) ;
  • 황인조 (대구대학교 환경공학과)
  • Received : 2015.08.26
  • Accepted : 2015.11.27
  • Published : 2015.12.31

Abstract

The ambient $PM_{2.5}$ samples were collected by $PM_{2.5}$ sampler from September 2010 to December 2012 at Daegu University, Gyeongsan. A total of 260 samples were collected and 27 species were analyzed by inductively coupled plasma, ion chromatography, and thermal optical reflectance methods. Factor analysis identified four sources such as biomass burning source/secondary aerosol source, soil source, industry source, and incinerator source/mobile source. Also, backward trajectories were calculated using HYSPLIT 4 (Hybrid single-particle lagrangian integrated trajectory) model and PSCF (Potential source contribution function) model was applied to identify the possible source locations of carbonaceous species and water soluble ions species. PSCF results showed that the possible source locations of most chemical constituents measured in Gyeongsan were the industrial areas in the eastern coast of China, northeast regions of China, the Gobi Desert, and east sea of Korea.

Keywords

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