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http://dx.doi.org/10.5572/KOSAE.2013.29.4.369

The Trend of the Concentrations of the Criteria Pollutants over Seoul  

Kim, Yong Pyo (Department of Environmental Science and Engineering, Ewha Womans University)
Yeo, Min Ju (Department of Environmental Science and Engineering, Ewha Womans University)
Publication Information
Journal of Korean Society for Atmospheric Environment / v.29, no.4, 2013 , pp. 369-377 More about this Journal
Abstract
The trends of the criteria air pollutants' concentrations over Seoul are reviewed, relative contributions of major sources are discussd, and directions for future air quality management are suggested. It was shown that the yearly average concentrations of the criteria air pollutants except nitrogen dioxide and ozone have decreased significantly over the last three decades. Though the concentration of nitrogen dioxide has not decreased, the concentration of $NO_x$ has decreased significantly. The major reason for the reduction of the criteria air pollutants has been strict government regulations such as establishment of strict emission standards and switch to cleaner fuels. However, it is not clear the major reason (s) for the reduction of the $PM_{10}$ concentration. It is suggested that to further reduce the concentrations of secondary air pollutants such as ozone and $PM_{2.5}$, understanding the major chemical pathways for them is essential. In addition, influence from outside Seoul should be quantified and effectively controlled.
Keywords
Seoul; Criteria air pollutants; Vehicular emission; Photochemical reactions; Transport from outside Seoul;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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