한국대기환경학회지 (Journal of Korean Society for Atmospheric Environment)

  • 제21권1호
  • /
  • Pages.49-62
  • /
  • 2005
  • /
  • 1598-7132(pISSN)
  • /
  • 2383-5346(eISSN)
한국대기환경학회 (Korean Society for Atmospheric Environment)
권호 표지

팔당호 유역에 대한 질소와 황의 건식 침적량 추정

Estimation of Nitrogen and Sulfur Dry Deposition over the Watershed of Lake Paldang

  • 김진영 (한국과학기술원 대기자원연구센터) ;
  • 김영성 (한국과학기술원 대기자원연구센터) ;
  • 원재광 (서울대학교 지구환경과학부) ;
  • 윤순창 (서울대학교 지구환경과학부) ;
  • 우정헌 ;
  • 조규탁 (이앤위즈(주)부설연구소)
  • 발행 : 2005.02.01
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초록

Lake Paldang is a main resource of drinking water for 20 million people in the greater Seoul area. Dry deposition amounts of nitrogen and sulfur were estimated for three typical days in each season over the watershed of Lake Paldang. Models- 3/CMAQ (Community Multiscale Air Quality) and MM5 (Mesoscale Model) were used to predict air quality and meteorology, respectively. Aerosols as well as gaseous pollutants were considered. Nitrogen was mainly deposited in the form of HNO, while most of sulfur was deposited in the form of SO$_2$. Contribution of secondary pollutants was the largest in fall since they were transported from the greater Seoul area. However, contribution of secondarily-formed particulate pollutants to the nitrogen deposition was the largest in winter because semi-volatile ammonium nitrate favors lower temperature. Annual deposition amounts of nitrogen and sulfur were 37% and 26% of their emission amounts, respectively, over the watershed of Lake Paldang. Higher value of the nitrogen deposition showed a more influence of pollutants emitted in the greater Seoul area.

키워드

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