Changes in NOx and O-3 concentrations over a decade at a central urban area of Seoul, Korea
- Authors
- Vellingiri, Kowsalya; Kim, Ki-Hyun; Jeon, Jin Yong; Brown, Richard J. C.; Jung, Myung-Chae
- Issue Date
- Jul-2015
- Publisher
- PERGAMON-ELSEVIER SCIENCE LTD
- Keywords
- Air quality; NO2; NO; Ozone; Road traffic emissions
- Citation
- ATMOSPHERIC ENVIRONMENT, v.112, pp.116 - 125
- Indexed
- SCIE
SCOPUS
- Journal Title
- ATMOSPHERIC ENVIRONMENT
- Volume
- 112
- Start Page
- 116
- End Page
- 125
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/24931
- DOI
- 10.1016/j.atmosenv.2015.04.032
- ISSN
- 1352-2310
- Abstract
- This study aims to explore trends of NOx (NO + NO2) pollution over ten years (2004-2013) at an urban monitoring station at Yongsan in Seoul, Korea. The mean concentrations (in nmol/mol) of NO, NO2, and O-3 measured over the entire study period were 25.3 ± 730, 36.9 ± 1.76, and 17.5 ± 1.31, respectively. The decadal trend of these pollutants exhibited statistically significant, but contrasting, results with downward NO and NOx trends and upward O-3 trends throughout the study period. Correlation studies and principal component analysis (PCA) explained association of NO and NO2 with traffic related pollutants (CO, PM, and SO) at a statistically significant level while O-3 exhibited patterns correlated with meteorological parameters. The overall results of this study indicate that the decadal trend of NO and NO2 was highly dependent on automotive related pollution, while O-3 concentration was influenced by both the availability of NO and meteorological conditions. (C) 2015 Elsevier Ltd. All rights reserved.
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Collections - 서울 공과대학 > 서울 건축공학부 > 1. Journal Articles
- 서울 공과대학 > 서울 건설환경공학과 > 1. Journal Articles
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