Journal of Korean Society for Atmospheric Environment (한국대기환경학회지)

Korean Society for Atmospheric Environment (한국대기환경학회)
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Spatial and Temporal Variations of Atmospheric Concentrations of Carbonyl Compounds in Seoul Metropolitan Area

수도권 지역 대기 중 카보닐화합물의 시.공간적 농도 분포 특성

  • Seo, Young-Kyo (School of Civil and Environmental Engineering, Yeungnan University) ;
  • Jeong, Eun-Hui (School of Civil and Environmental Engineering, Yeungnan University) ;
  • Seo, Seok-Jun (School of Civil and Environmental Engineering, Yeungnan University) ;
  • Hwang, Yun-Jeong (Daegu City Institute of Public Health and Environment) ;
  • Han, Jin-Seok (National Institute of Environmental Research) ;
  • Bae, Sung-Ok (School of Civil and Environmental Engineering, Yeungnan University)
  • 서영교 (영남대학교 건설환경공학부 대기환경연구실) ;
  • 정은희 (영남대학교 건설환경공학부 대기환경연구실) ;
  • 서석준 (영남대학교 건설환경공학부 대기환경연구실) ;
  • 황윤정 (대구광역시 보건환경연구원) ;
  • 한진석 (국립환경과학원 대기환경과) ;
  • 백성옥 (영남대학교 건설환경공학부 대기환경연구실)
  • Published : 2008.04.30
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Abstract

The purpose of this study is to evaluate concentrations of carbonyl compounds during summer season in Seoul metropolitan area. The air samples were collected at 7 sites in this area from June 2001 to June 2003. The carbonyl compounds were analyzed by DNPH/HPLC method. The analytical method applied in this study showed good repeatability, linearity, and sensitivity. The most abundant carbonyl was formaldehyde (average 4.48 ppb), and followed by acetone, acetaldehyde, methyl ethyl ketone, butyraldehyde, propionaldehyde and benzaldehyde, respectively. Concentrations of carbonyl compounds in June were higher than those in August. There was not only higher solar radiation but also higher ozone concentration in June than in August. As a result o photochemical reactions, carbonyl compounds from both primary and secondary sources are likely to contribute to the formation of ozone. The contributions to photochemical ozone creation of two carbonyl compounds such as formaldehyde and acetaldehyde were estimated to be about 70%. Ratios of formaldehyde to acetaldehyde in this study ranged from 1.13 to 4.26, which are generally equivalent levels to those of other urban areas in domestic and foreign countries.

Keywords

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