Journal of Environmental Science International (한국환경과학회지)

The Korean Environmental Sciences Society (한국환경과학회)
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Characteristics of Extremely High PM2.5 Episode and Emergency Reduction Measures Plan in Southeastern Region - Comparative Study in Busan vs. Seoul Metropolitan Area (II)

남동권 초고농도 미세먼지 발생 특성과 비상저감조치 - 수도권과 비교연구 (II)

  • Choi, Daniel (Department of Atmospheric Sciences, Pusan National University) ;
  • Heo, Gook-Young (Policy Support Team, National Air Emission Inventory and Research Center) ;
  • Kim, Cheol-Hee (Department of Atmospheric Sciences, Pusan National University)
  • 최다니엘 (부산대학교 지구환경시스템학부 대기환경과학과) ;
  • 허국영 (환경부 국가미세먼지정보센터 정책지원팀) ;
  • 김철희 (부산대학교 지구환경시스템학부 대기환경과학과)
  • Received : 2021.07.06
  • Accepted : 2021.09.24
  • Published : 2021.10.31
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Abstract

This study analyzed the characteristics of high PM2.5 episodes that meets the concentration criteria of Emergency Reduction Measures Plan (ERMP) in Busan during the 2015-2020, and compared with those in Seoul. As a first step, the CAPSS-2017 emission data was employed to analyze the emission differences between Busan and Seoul, and pointed out that Busan emission included the dominance of ship emissions (37.7%) among total PM2.5 city emissions, whereas fugitive PM2.5 emission was the highest in Seoul. These emission characteristics are indicating that the controlling action plan should be uniquely applied to cope with ERMP in each region. We selected extremely high PM2.5 episode days that meet the criteria of ERMP levels. In Busan, Ulsan, and Gyeongnam region, 15, 16, and 8 days of extremely high PM2.5 cases were found, respectively, whereas Seoul showed approximately doubling of occurrences with 37 cases. However, the occurrences in summer season indicated big differences between two cities: the proportion of summer-season occurrence was 13-25% in Busan, whereas no single case have occurred in Seoul. This is suggesting the needs of comprehensive summer emission reduction plan with focusing on sulfur reduction to effectively cope with the ERMP levels in summer in the southeastern region, including Busan.

Keywords

Acknowledgement

본 논문을 심사해 주신 심사위원분께 감사드립니다. 이 논문는 부산대학교 기본연구지원사업(2년)에 의하여 연구되었습니다.

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