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논문 기본 정보

자료유형
학술저널
저자정보
김득수 (군산대학교) 정진상 (한국표준과학연구원) 안준영 (국립환경과학원)
저널정보
한국대기환경학회 한국대기환경학회지(국문) 한국대기환경학회지 제32권 제4호
발행연도
2016.8
수록면
422 - 434 (13page)

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This study was conducted to understand roles of NO<SUB>x</SUB>(=NO+NO₂) on high O₃ episodes at an urban monitoring station in Seoul. Concentrations of NO, NO₂, NO<SUB>y</SUB> and O₃ were measured intensively at KIST monitoring station which located at urban center in Seoul metropolitan area during May 18~June 13, 2015. Sampling period was planed because high O₃ and PM occurred frequently during from late spring to early summer months in Seoul. The experimental site locates in NW from center of Seoul and is surrounded by residential area. Belt highway of the city runs from north to west side nearby experimental site. Vehicle exhaust emissions due to heavy traffic influenced NO<SUB>x</SUB><SUB></SUB> concentration at the site during northwesterly wind. Specific NO₂ concentration was measured by Blue Light photolytic converter, and it was compared to NO₂ concentration measured by molybedenum converter. [NO₂]<SUB>phtolysis</SUB> was usually lower than [NO₂]<SUB>molybedenum</SUB> during the experiment period; however their diurnal variations were very similar. The linear relationship between these NO₂ concentrations was found to be [NO₂]phtolysis=0.64 [NO₂]molybedenum - 2.6, r<SUP>2</SUP>=0.83 during May 16~8, 2015. The difference between NO₂ by molybdenum converter and by photolytic converter (ΔNO₂=[NO₂]<SUB>molybedenum</SUB> -[NO₂]<SUB>phtolysis</SUB>) accounted for residual NO<SUB>y</SUB> which can represent NOz (=NOy -NOx). O₃ concentration showed typical daily trend which has maximum at late afternoon and minimum during the night. O₃ increased at a rate of 7 ppb/hr since 8 am. and reached the maximum concentration (~80 ppb) at 3 pm.. The diurnal pattern of O₃ was inversely related with that of NO₂, suggesting that the formation of O₃ was the result of photochemical activity of NO₂.

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Abstract
1. 서론
2. 연구 방법
3. 결과 및 고찰
4. 결론
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UCI(KEPA) : I410-ECN-0101-2017-539-001134022