Particle and aerosol research (한국입자에어로졸학회지)

Korean Association for Particle and Aerosol Research (한국입자에어로졸학회)
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Comparison of chemical compositions and source apportionmentof PM1.0 and PM2.5 in Seoul and Gwangju in 2021

2021년 서울과 광주 지역 PM1.0과 PM2.5의 화학적 특성 비교 분석 연구

  • Ju Young Kim (Department of Environmental Science & Engineerig, EWHA Womans University) ;
  • Seung Mee Oh (Department of Environmental Science & Engineerig, EWHA Womans University) ;
  • Hye Jung Shin (Department of Air Quality Research, National Institute of Environmental Research) ;
  • Yu Woon Chang (Department of Air Quality Research, National Institute of Environmental Research) ;
  • Yong Hwan Lee (Department of Air Quality Research, National Institute of Environmental Research) ;
  • Su Jin Kwon (Department of Environmental Health Sciences, Seoul National University) ;
  • Sung Deuk Choi (Department of Urban and Environmental Engineering, Ulsan National Institute of Science and Technology) ;
  • Sang Jin Lee (Department of Urban and Environmental Engineering, Ulsan National Institute of Science and Technology) ;
  • Ji Yi Lee (Department of Environmental Science & Engineerig, EWHA Womans University)
  • 김주영 (이화여자대학교 환경공학과) ;
  • 오승미 (이화여자대학교 환경공학과) ;
  • 신혜정 (국립환경과학원 대기환경연구과) ;
  • 장유운 (국립환경과학원 대기환경연구과) ;
  • 이용환 (국립환경과학원 대기환경연구과) ;
  • 권수진 (서울대학교 보건대학원 환경보건학과) ;
  • 최성득 (울산과학기술원 도시환경공학) ;
  • 이상진 (울산과학기술원 도시환경공학) ;
  • 이지이 (이화여자대학교 환경공학과)
  • Received : 2023.08.01
  • Accepted : 2023.09.18
  • Published : 2023.12.31
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Abstract

The PM1.0 and PM2.5 samples were collected synchronously using a single channel particulate sampler equipped with PM1.0 and PM2.5 cyclones, respectively, and seasonal mass concentration and chemical composition of PM1.0 and PM2.5 were quantified in Seoul and Gwangju in 2021-2022. The mass concentrations of PM1.0 and PM2.5 were 17±11 and 22±14 ㎍/m3 in Seoul, and 16±9 and 19±12 ㎍/m3 in Gwangju, respectively. The average ratios of PM1.0/PM2.5 were 83±16% in Seoul and 83±7% in Gwangju. The chemical compositions of PM1.0 and PM2.5 were similar at both sites with OC component being the most dominant, and NO3- increasing from summer to winter, while, the difference of chemical distribution at the two sites was most distinct in the autumn. Gwangju showed a higher proportion of OC and a lower proportion of NO3- compared to Seoul during the autumn. Both sites appear to reflect their urban characteristics, with Gwangju also reflecting the impact of biomass combustion as a part of rural activities.

Keywords

Acknowledgement

이 연구는 국립환경과학원의 수도권지역 PM1 특성 및 관리방안III(NIER-SP2021-336) 과제의 지원을 받아 수행되었으며, 이에 감사드립니다.

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