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Understanding on Regional Characteristics of Particular Matter in Seoul - Distribution of Concentration in Borough Spatial Area and Relation with the Number of Registered Vehicles -

서울시 미세먼지 농도의 지역적 특성파악을 위한 연구 - 구별 분포 특성 및 차량등록대수와의 관계 -

  • Park, Jong-Kil (Department of Civil and Environmental Engineering/Atmospheric Environment Information Research Center, Inje University) ;
  • Choi, Yun-Jeong (SUNIL Engineering&Construction) ;
  • Jung, Woo-Sik (Department of Atmospheric Environment Information Engineering/Atmospheric Environment Information Research Center, Inje University)
  • 박종길 (인제대학교 환경공학과/대기환경정보연구센터) ;
  • 최윤정 (선일이엔씨) ;
  • 정우식 (인제대학교 대기환경정보공학과/대기환경정보연구센터)
  • Received : 2016.10.19
  • Accepted : 2016.11.08
  • Published : 2017.01.31

Abstract

Average concentration of PM in Seoul metropolitan area satisfied the Korean air quality standard in 2010. Furthermore, concentration of PM in all boroughs across Seoul met the air environment standard in 2012. $PM_{10}$ concentration was relatively higher in center of Seoul in comparison to the rest, while $PM_{2.5}$ concentration showed exactly the contrary result. We analyzed the effect that PM emissions from vehicles would have on PM concentrations across Seoul. The results showed that average annual PM concentration recently decreased in Seoul although the number of vehicles registered annually continued its upward trend. By contrast, average fine dust concentrations in Seoul showed a decline which suggested that correlation between annual average PM concentrations and number of registered vehicles remained low. However, year-on-year vehicle registration rate recently showed a declining tendency in the same way as the trend of changes in average PM concentrations. Particularly, the upward trend in annual average PM concentrations in 2002 and 2007 was consistent with the increase in vehicle registration rate, suggesting that vehicle registration rate was closely associated with changes in PM concentrations.

Keywords

Particular matter;Registered vehicles;Concentration

Acknowledgement

Supported by : 울산녹색환경지원센터

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