Particle and aerosol research (한국입자에어로졸학회지)

Korean Association for Particle and Aerosol Research (한국입자에어로졸학회)
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Characterization of Atmospheric Dispersion Pattern from Large Sources in Chungnam, Korea

충남지역 대형사업장의 대기오염물질 확산 특성 파악

  • Choi, Woo Yeong (Department of Environmental Science and Engineering, Ewha Womans University) ;
  • Park, Min Ha (Department of Environmental Science and Engineering, Ewha Womans University) ;
  • Jung, Chang Hoon (Department of Health Management, Kyung-in Women's University) ;
  • Kim, Yong Pyo (Department of Chemical Engineering & Materials Science, Graduate Program in System Health Science and Engineering, Ewha Womans University) ;
  • Lee, Ji Yi (Department of Environmental Science and Engineering, Ewha Womans University)
  • 최우영 (이화여자대학교 환경공학과) ;
  • 박민하 (이화여자대학교 환경공학과) ;
  • 정창훈 (경인여자대학교 보건의료관리과) ;
  • 김용표 (이화여자대학교 화학신소재공학과 겸 시스템헬스융합전공) ;
  • 이지이 (이화여자대학교 환경공학과)
  • Received : 2021.08.18
  • Accepted : 2021.09.09
  • Published : 2021.09.30
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Abstract

Chungnam region accounts for the largest SOX (22.8%) emission with the second-largest NOX (10.8%) emission in Korea due to the integration of many large industrial sources including a steel mill, coal-fired power plants, and petrochemical complex. Air pollutants emitted by large industrial sources can cause harmful problems to humans and the environment. Thus, it is necessary to understand dispersion patterns of air pollutants from large industrial sources in Chungnam to characterize atmospheric contamination in Chungnam and the surrounding area. In this study, seasonal atmospheric dispersion characteristics for SOX, NOX, and PM2.5 from ten major point sources in Chungnam were evaluated using HYSPLIT 4 model, and their contributions to SO2, NO2 concentrations in the regions near the source areas were estimated. The predictions of the HYSPLIT 4 model show a seasonal different dispersion pattern, in which air pollutants were dispersed toward the southeast in winter while, northeast in summer. In summer, due to weaker wind speed, air pollutants concentrations were higher than in winter, and they were dispersed to the metropolitan area. The local emissions of air pollutants in Taean area had a greater influence on the ambient SO2 and NO2 concentrations at Taean, whereas SOX and NOX emissions from large sources located at Seosan showed relatevely little effect on the ambient ambient SO2 and NO2 concentrations at Seosan.

Keywords

Acknowledgement

이 논문은 2020년도 정부(과학기술정보통신부)의 재원으로 한국연구재단-기후변화대응기술개발사업의 지원을 받아 수행된 연구입니다. (2019M1A2A2103953).

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