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Methodology of Application to Air Quality Model to Evaluate the Results of the Enforcement Plan in Seoul Metropolitan Area

수도권 지역의 대기환경관리 시행계획 추진결과 평가를 위한 대기질 모델링 적용 방법

  • Yoo, Chul (Air Pollution Control Research Division, Climate and Air Quality Research Department, National Institute of Environmental Research) ;
  • Lee, Dae-Gyun (Air Pollution Control Research Division, Climate and Air Quality Research Department, National Institute of Environmental Research) ;
  • Lee, Yong-Mi (Air Pollution Control Research Division, Climate and Air Quality Research Department, National Institute of Environmental Research) ;
  • Lee, Mi-Hyang (Air Pollution Control Research Division, Climate and Air Quality Research Department, National Institute of Environmental Research) ;
  • Hong, Ji-Hyung (Air Pollution Control Research Division, Climate and Air Quality Research Department, National Institute of Environmental Research) ;
  • Lee, Seok-Jo (Air Pollution Control Research Division, Climate and Air Quality Research Department, National Institute of Environmental Research)
  • 유철 (국립환경과학원 기후대기연구부 대기공학연구과) ;
  • 이대균 (국립환경과학원 기후대기연구부 대기공학연구과) ;
  • 이용미 (국립환경과학원 기후대기연구부 대기공학연구과) ;
  • 이미향 (국립환경과학원 기후대기연구부 대기공학연구과) ;
  • 홍지형 (국립환경과학원 기후대기연구부 대기공학연구과) ;
  • 이석조 (국립환경과학원 기후대기연구부 대기공학연구과)
  • Received : 2011.10.27
  • Accepted : 2011.12.25
  • Published : 2011.12.31

Abstract

The Government had devised legislation of Special Act and drew up guidelines for improving air quality in Seoul Metropolitan area. In 2007 local government of Seoul, Incheon and Gyeonggi conducted the results of application policy by reduced air pollutants emission for the first time. Although there was reduction of air pollutant emission in each local government, it was ineffective as expected using air pollution monitoring database. Therefore we worked out a way to prepare modeling input data using the results of enforcement plan. And we simulated surface $NO_2$ and PM10 before and after decrease in air pollutants emission and examine reduction effects of air pollution according to enforcement regulation except other influence, by using MM5-SMOKE-CMAQ system. Each local government calculated the amount of emission reduction under application policy, and we developed to prepare input data so as to apply to SMOKE system using emission reduction of enforcement plan. Distribution factor of emission reduction were classified into detailed source and fuel codes using code mapping method in order to allocate the decreased emission. The code mapping method also included a way to allocate spatial distribution by CAPSS distribution. According to predicted result using the reduction of NOx emission, $NO_2$ concentration was decreased from 19.1 ppb to 18.0 ppb in Seoul. In Gyeonggi and Incheon $NO^2$ concentrations were down to 0.65 ppb and 0.68 ppb after application of enforcement plan. PM10 concentration was reduced from 18.2 ${\mu}g/m^3$ to 17.5 ${\mu}g/m^3$ in Seoul. In Gyeonggi PM10 concentration was down to 0.51 ${\mu}g/m^3$ and in Incheon PM10 concentration was decreased about 0.47 ${\mu}g/m^3$ which was the lower concentration than any other cities.

Keywords

Enforcement plan;Allocation;Emission;Reduction;Air quality model

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