Characteristics of PM2.5 in Gyeongsan
using Statistical Analysis
Li, Kai Chao
Department of Environmental Engineering
Graduate School, Daegu University
Gyungbuk, Korea
Supervised by Prof. InJo, Hwang
(Abstract)
PM2.5 samples were collected at urban sampling sites in Gyeongsan. The sampling si...
Characteristics of PM2.5 in Gyeongsan
using Statistical Analysis
Li, Kai Chao
Department of Environmental Engineering
Graduate School, Daegu University
Gyungbuk, Korea
Supervised by Prof. InJo, Hwang
(Abstract)
PM2.5 samples were collected at urban sampling sites in Gyeongsan. The sampling site in Gyeongsan was located on the roof of the College of Engineering Building at Daegu university in Gyeongsan, Korea. Samples were collected from morning to morning mostly every third day.
The PM2.5 mass concentrations respectively were 29.90 μg/m3, 25.20 μg/m3 and 23.75 μg/m3 in 2010, 2011, and 2012. The measured chemical constituents were carbonaceous species such as inorganic elements, ion elements and organic carbon (OC) elemental carbon (EC). Fe (0.38 μg/m3) was the highest of inorganic elements, NO3- 5.62 μg/m3, SO42- 4.74 μg/m3, NH4+ 2.86 μg/m3 was the relatively highest of ion elements and OC, EC each was 4.28 μg/m3, 1.26 μg/m3.
Results of factor analysis, four factor were qualitatively obtained, such as Biomass burning source (K, K+), secondary aerosol source (NH4+, SO42-, NO3-). soil source(Mg, Ca, Si, Al), industry source (Cr, Ni, Fe, Cu), incinerator source (Cl-, EC, OC) and mobile source (Zn).
Backward trajectories were calculated using Hybrid Single-particle Lagrangian Integrated Trajectory (HYSPLIT) 4 model and Potential Source Contribution Function (PSCF) 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 and the Gobi Desert or east sea of korea.
Characteristics of PM2.5 in Gyeongsan
using Statistical Analysis
Li, Kai Chao
Department of Environmental Engineering
Graduate School, Daegu University
Gyungbuk, Korea
Supervised by Prof. InJo, Hwang
(Abstract)
PM2.5 samples were collected at urban sampling sites in Gyeongsan. The sampling site in Gyeongsan was located on the roof of the College of Engineering Building at Daegu university in Gyeongsan, Korea. Samples were collected from morning to morning mostly every third day.
The PM2.5 mass concentrations respectively were 29.90 μg/m3, 25.20 μg/m3 and 23.75 μg/m3 in 2010, 2011, and 2012. The measured chemical constituents were carbonaceous species such as inorganic elements, ion elements and organic carbon (OC) elemental carbon (EC). Fe (0.38 μg/m3) was the highest of inorganic elements, NO3- 5.62 μg/m3, SO42- 4.74 μg/m3, NH4+ 2.86 μg/m3 was the relatively highest of ion elements and OC, EC each was 4.28 μg/m3, 1.26 μg/m3.
Results of factor analysis, four factor were qualitatively obtained, such as Biomass burning source (K, K+), secondary aerosol source (NH4+, SO42-, NO3-). soil source(Mg, Ca, Si, Al), industry source (Cr, Ni, Fe, Cu), incinerator source (Cl-, EC, OC) and mobile source (Zn).
Backward trajectories were calculated using Hybrid Single-particle Lagrangian Integrated Trajectory (HYSPLIT) 4 model and Potential Source Contribution Function (PSCF) 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 and the Gobi Desert or east sea of korea.
주제어
#PM2.5
#상관분석
#인자분석
#HYSPLIT
#PSCF
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