한국환경과학회지 (Journal of Environmental Science International)

  • 제30권9호
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  • Pages.727-739
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  • 2021
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  • 1225-4517(pISSN)
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  • 2287-3503(eISSN)
한국환경과학회 (The Korean Environmental Sciences Society)
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제주시 도로변에서의 에어로졸의 입경별 분포 특성

Roadside Aerosols Size Distribution Characteristics in Jeju City

  • 이기호 (제주대학교 환경공학과) ;
  • 김수미 (제주특별자치도 보건환경연구원 대기환경과) ;
  • 허철구 (제주대학교 환경공학과)
  • Lee, Ki-Ho (Department of Environmental Engineering, Jeju National University) ;
  • Kim, Su-Mi (Air Environmental Division, Jeju Special Self-Governing Province Research Institute of Health & Environment) ;
  • Hu, Chul-Goo (Department of Environmental Engineering, Jeju National University)
  • 투고 : 2021.07.14
  • 심사 : 2021.09.03
  • 발행 : 2021.09.30
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초록

Measurements on mass size distribution of roadside aerosols were obtained in downtown Jeju City from July 2018 to May 2020 using an 8-stage cascade impactor sampler and the compositions of aerosols were analyzed. The mass size distribution of total aerosols was bimodal with aerosols existing in both the fine and coarse modes. The mass size distributions of Na+, Mg2+, Ca2+, Cl-, NH4+ and SO42- were unimodal, whereas that of K+ was bimodal. For NO3-, the size distribution in winter and spring was bimodal with the peaks in both fine and coarse modes, whereas for summer and autumn the distribution was unimodal with a peak in the coarse mode. NH4+ was found to co-exist with SO42- in the fine mode with an average molar ratio of [NH4+]/[SO42-] equal to 2.05. Good correlation was observed between NO3- and NH4+ in the fine mode particles in spring and winter. Based on the value of the marine enrichment factor for Cl-, Mg2+, K+, Ca2+ and SO42-, it may be inferred that a major part of the roadside aerosols in downtown Jeju City was largely contributed by terrigenous sources, although the influence of sea salt was normally present.

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과제정보

이 연구는 2020학년도 제주대학교 교원성과지원사업의 지원으로 수행되었습니다.

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