Journal of Environmental Analysis, Health and Toxicology (환경분석과 독성보건)

The Korea Society for Environmental Analysis (한국환경분석학회)
권호 표지

Characteristics of Diurnal Variation of Volatile Organic Compounds in Seoul, Korea during the Summer Season

서울지역 여름철 VOCs 일변동 특성에 관한 연구

  • Park, Jong-sung (Climate & Air Quality Research Department, National Institute of Environment Research) ;
  • Song, In-ho (Climate & Air Quality Research Department, National Institute of Environment Research) ;
  • Kim, Hyun-woong (Climate & Air Quality Research Department, National Institute of Environment Research) ;
  • Lim, Hyung-bae (Climate & Air Quality Research Department, National Institute of Environment Research) ;
  • Park, Seung-myung (Climate & Air Quality Research Department, National Institute of Environment Research) ;
  • Shin, Su-na (Climate & Air Quality Research Department, National Institute of Environment Research) ;
  • Shin, Hye-jung (Climate & Air Quality Research Department, National Institute of Environment Research) ;
  • Lee, Sang-bo (Climate & Air Quality Research Department, National Institute of Environment Research) ;
  • Kim, Jeong-su (Climate & Air Quality Research Department, National Institute of Environment Research) ;
  • Kim, Jeong-ho (APM Engineering Co., Ltd)
  • 박종성 (국립환경과학원 기후대기연구부) ;
  • 송인호 (국립환경과학원 기후대기연구부) ;
  • 김현웅 (국립환경과학원 기후대기연구부) ;
  • 임형배 (국립환경과학원 기후대기연구부) ;
  • 박승명 (국립환경과학원 기후대기연구부) ;
  • 신선아 (국립환경과학원 기후대기연구부) ;
  • 신혜정 (국립환경과학원 기후대기연구부) ;
  • 이상보 (국립환경과학원 기후대기연구부) ;
  • 김정수 (국립환경과학원 기후대기연구부) ;
  • 김정호 ((주)에이피엠엔지니어링)
  • Received : 2018.10.19
  • Accepted : 2018.11.30
  • Published : 2018.12.31
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Abstract

In this study, volatile organic compounds (VOCs) were measured using a proton transfer reaction-time of flight-mass spectrometer (PTR-ToF-MS) at the Seoul Metropolitan Area Intensive Monitoring Station (SIMS) in Korea during the summer season of 2018. The results revealed that oxygenated VOCs (OVOCs) contributed a large fraction (83.6%) of the total VOCs, with methanol being the most abundant constituent (38.6%). The VOCs measured at SIMS were strongly influenced by local conditions. Non-volatile organic compounds (NVOCs), such as pinene, increased due to northeasterly wind direction in the morning, and OVOCs and anthropogenic VOCS (AVOCs) increased with northwesterly wind direction during the daytime. This was the result of the eastward location of Bukhansan National Park and the westward location of urban area from the SIMS location. The VOCs included abundant oxidized forms of VOCs, which can affect the generation of fine dust through various response pathways in the atmosphere. The real-time measurement technique using PTR-ToF-MS suggested in this study is expected to contribute to an improved scientific understanding of high-concentration fine dust events because the high temporal resolution makes it possible to analyze the variations of VOCs reflected in dynamic events.

Keywords

Acknowledgement

Grant : 장거리이동오염물질 시험방법 및 대기환경가이드라인 마련 연구

Supported by : 국립환경과학원

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