Measurement Study at Korean, Cheju Island during March-April, 1994: (II) Characteristics of Gaseous Air Pollutants

고산에서의 1994년 3월 - 4월 측정연구: (II) 기체상 대기오염물질의 특성

  • 김용표 (한국과학기술연구원 환경연구센터) ;
  • 김진영 (한국과학기술연구원 환경연구센터) ;
  • 박세옥 (한국과학기술연구원 환경연구센터) ;
  • 김성주 (한국과학기술연구원 환경연구센터) ;
  • 심상규 (한국과학기술연구원 환경연구센터) ;
  • 문길주 (한국과학기술연구원 환경연구센터) ;
  • 박경윤 (한국과학기술연구원 시스템공학연구소 지구환경연구부) ;
  • 허철구 (제주대학교 해양환경공학과)
  • Published : 1996.03.01

Abstract

Ozone, sulfur dioxide, and nitrogen oxides were measured at Kosan, Cheju Island, Korea during the period of March 11 .sim. April 19, 1994. During the measurement period, the average SO$_{2}$ and NOx concentrations were about 0.97 ppb and 3.5 ppb, respectively. Average NO concentration was below the detection limit and thus the effect of NO during the period was negligible. The concentrations of SO$_{2}$ and Nox were lower than those at other urban area in Korea but higher than other remote areas in the world. Average $O_{3}$ concentration for the period was about 55 ppb, slightly higher than or comparable to those at remote marine areas in the world. Detailed analyses of trend of gaseous species concentrations show that the effects of local NO emission sources for NOx concentration were significant during the period, while those of local SO$_{2}$ emission sources were not high. Backward trajectory analysis results show that when SO$_{2}$ or $O_{3}$ concentration was higher than the average concentrations, the air parcels were transported from China.

Keywords

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