한국대기환경학회지 (Journal of Korean Society for Atmospheric Environment)

  • 제34권4호
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  • Pages.517-533
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  • 2018
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  • 1598-7132(pISSN)
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  • 2383-5346(eISSN)
한국대기환경학회 (Korean Society for Atmospheric Environment)
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동남지역 주요 배출지역의 PM2.5 기여도 분석

PM2.5 Source Apportionment Analysis to Investigate Contributions of the Major Source Areas in the Southeastern Region of South Korea

  • Ju, Hyeji (Department of Environmental and Safety Engineering, Ajou University) ;
  • Bae, Changhan (Department of Environmental and Safety Engineering, Ajou University) ;
  • Kim, Byeong-Uk (Georgia Environmental Protection Division) ;
  • Kim, Hyun Cheol (Air Resources Laboratory, National Oceanic and Atmospheric Administration) ;
  • Yoo, Chul (Air Quality Research Division, National Institute of Environmental Research) ;
  • Kim, Soontae (Department of Environmental and Safety Engineering, Ajou University)
  • 투고 : 2018.03.02
  • 심사 : 2018.07.16
  • 발행 : 2018.08.31
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초록

We utilize the CAMx (Comprehensive Air Quality Model with eXtensions) system and the PSAT (Particulate Source Apportionment Technology) diagnostic tool to determine the $PM_{2.5}$ concentration and to perform its source apportionment in the southeastern region of South Korea. For a year-long simulation, eight local authorities in the region such as Pohang, Daegu, Gyeongju, Ulsan, Busan-Gimhae, Gosung-Changwon, Hadong, and all remaining areas in Gyeongsangnam-do, are selected as source areas based on the emission rates of $NO_x$, $SO_x$, VOC, and primary PM in CAPSS (Clean Air Policy Support System) 2013 emissions inventory. The CAMx-PSAT simulation shows that Pohang has the highest $PM_{2.5}$ self-contribution rate (25%), followed by Hadong (15%) and Busan-Gimhae (14%). With the exception of Pohang, which has intense fugitive dust emissions, other authorities are strongly affected by emissions from their neighboring areas. This may be measured as much as 1 to 2 times higher than that of the self-contribution rate. Based on these estimations, we conclude that the efficiency of emission reduction measures to mitigate $PM_{2.5}$ concentrations in the southeastern region of South Korea can be maximized when the efforts of local or regional emission controls are combined with those from neighboring regions. A comprehensive control policy planning based on the collaboration between neighboring jurisdictional boundaries is required.

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참고문헌

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