Particle and aerosol research (한국입자에어로졸학회지)

Korean Association for Particle and Aerosol Research (한국입자에어로졸학회)
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A study of origins and characteristics of metallic elements in PM10 and PM2.5 at a suburban site in Taean, Chungchengnam-do

충청남도 태안 교외대기 PM10, PM2.5의 중금속 농도 특성과 기원 추적연구

  • Sangmin Oh (Environmental Measurement&Analysis Center, Environmental Infrastructure Research Department, National Institute of Environmental Research) ;
  • Suk-Hee Yoon (Environmental Measurement&Analysis Center, Environmental Infrastructure Research Department, National Institute of Environmental Research) ;
  • Jaeseon Park (Monitoring & Analysis Division, Han River Basin Environmental Office, Ministry of Environment) ;
  • Yu-Jung Heo (Environmental Measurement&Analysis Center, Environmental Infrastructure Research Department, National Institute of Environmental Research) ;
  • Soohyung Lee (Environmental Measurement&Analysis Center, Environmental Infrastructure Research Department, National Institute of Environmental Research) ;
  • Eun-Jin Yoo (Environmental Measurement&Analysis Center, Environmental Infrastructure Research Department, National Institute of Environmental Research) ;
  • Min-Seob Kim (Environmental Measurement&Analysis Center, Environmental Infrastructure Research Department, National Institute of Environmental Research)
  • 오상민 (환경측정분석센터, 환경기반연구부, 국립환경과학원) ;
  • 윤숙희 (환경측정분석센터, 환경기반연구부, 국립환경과학원) ;
  • 박재선 (측정분석과, 환경관리국, 한강유역환경청) ;
  • 허유정 (환경측정분석센터, 환경기반연구부, 국립환경과학원) ;
  • 이수형 (환경측정분석센터, 환경기반연구부, 국립환경과학원) ;
  • 유은진 (환경측정분석센터, 환경기반연구부, 국립환경과학원) ;
  • 김민섭 (환경측정분석센터, 환경기반연구부, 국립환경과학원)
  • Received : 2023.07.30
  • Accepted : 2023.09.23
  • Published : 2023.12.31
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Abstract

Chungcheongnam-do has various emission sources, including large-scale facilities such as power plants, steel and petrochemical industry complexes, which can lead to the severe PM pollution. Here, we measured concentrations of PM10, PM2.5, and its metallic elements at a suburban site in Taean, Chungcheongnam-do from September 2017 to June 2022. During the measurement period, the average concentrations of PM10 and PM2.5 were 58.6 ㎍/m3 (9.6~379.0 ㎍/m3) and 35.0 ㎍/m3 (6.1~132.2 ㎍/m3), respectively. The concentration of PM10 and PM2.5 showed typical seasonal variation, with higher concentration in winter and lower concentration in summer. When high concentrations of PM2.5 occurred, particulary in winter, the fraction of Zn and Pb components considerably increased, indicating a significant contribution of Zn and Pb to high-PM2.5 concentration. In addition, Zn and Pb exhibited the highest correlation coefficient among all other metallic elements of PM2.5. A backward trajectory cluster analysis and CPF model were performed to examine the origin of PM2.5. The high concentration of PM2.5 was primarily influenced by emissions from industrial complexes located in the northeast and northwest areas.

Keywords

Acknowledgement

이 연구는 국립환경과학원 연구사업 R&D 예산으로 수행되었습니다. (NIER, 2022-01-01-072)

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