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Analysis of Poly Aromatic Hydrocarbon (PAH) Pollutants Originated from Local Road Dust by Spacial Measurements

공간 측정에 의한 도로변 발생 다환방향족탄화수소 연구

  • Park, Da-Jeong (Department of Environmental Engineering, Mokpo National University) ;
  • Cho, In-Hwan (Department of Environmental Engineering, Mokpo National University) ;
  • Lee, Kwang-Yul (School of Environmental Science and Engineering, Gwangju Institute of Science and Technology) ;
  • Park, Kihong (School of Environmental Science and Engineering, Gwangju Institute of Science and Technology) ;
  • Lee, Yeong-Jae (National Institute of Environmental Research, Air Quality Research Division) ;
  • Ahn, Joon-Young (National Institute of Environmental Research, Air Quality Research Division) ;
  • Bae, Min-Suk (Department of Environmental Engineering, Mokpo National University)
  • Received : 2016.03.07
  • Accepted : 2016.05.13
  • Published : 2016.06.30

Abstract

Understanding sources and contributions of $PM_{2.5}$ mass and particulate PAHs from traffic-related pollution can provide valuable information for alleviating air contamination from car emissions in urban areas. Two sampling sites at the Gwangju Institute of Science and Technology (GIST, $35.228^{\circ}N$, $126.843^{\circ}E$) and National institute of environmental research NamBu Supersite (NNBS, $35.226^{\circ}N$, $126.848^{\circ}E$) were selected for comprehensive road-oriented-PM investigations. Continuous measurements from optical particle sizer (OPS) and optical particle counter (OPC) with 24 hr integrated filter based samplers for organic carbon, water soluble organic carbon, and Poly Aromatic Hydrocarbons (PAHs) were conducted during Nov. 3 through 22 in 2014. As a result, $PM_{2.5}$ mass concentrations using OPC and OPS in NNBS presented about twice higher than in GIST due to road dust impacts based on wind direction analysis. In addition, ratios of elemental carbon (EC) to organic carbon (OC) and water insoluble organic carbon (WIOC) to organic carbon (OC) supported an additional evidence of the primary pollutant contributions oriented from road dust. PAHs related to 5 rings such as benzo(e&a)pyrene indicates higher associations.

Keywords

OPS;OCEC;GCMS;PAH

Acknowledgement

Supported by : 한국연구재단

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