中国重慶市における大気硫黄化合物の乾性沈着について An Estimate of Dry Deposition for Atmospheric Sulfur over Chongqing in China

この論文にアクセスする

この論文をさがす

著者

抄録

Dry deposition velocities of SO<SUB>2</SUB> to various model surfaces were calculated from total flux of SO<SUB>2</SUB> and SO<SUB>4</SUB><SUP>2-</SUP> measured on their surfaces assuming that dry deposition velocities of SO<SUB>4</SUB><SUP>2-</SUP> to various surfaces were 1/5 as large as SO<SUB>2</SUB>. Estimated dry deposition velocities of SO<SUB>2</SUB> to water, soil, vegetation and building material surfaces ranged 0.01∼0.64 cm·s<SUP>-1</SUP>. The results of spatial distribution for dry deposition flux of sulfur estimated with dry deposition velocities of SO<SUB>2</SUB> has indicated that the average value in 1995 was 9.4 gS·m<SUP>-2</SUP>·y<SUP>-1</SUP>. Considerably high the values over 12.5 gS·m<SUP>-2</SUP>·y<SUP>-1</SUP> were estimated for urban, Banan and Nantong area where large amounts of SO<SUB>2</SUB> had been emitted by coal combustion. In spite of the lowest dry deposition flux (4.4 gS·m<SUP>-2</SUP>·y<SUP>-1</SUP>) over Tongliang area, it was 2.2 times as high as that of Tokyo, Japan (2.0 gS·m<SUP>-2</SUP>·y<SUP>-1</SUP>). Higher dry deposition flux over eastern area than western area must be caused by the difference of weather, geographical conditions and sulfur emission. During 1986∼1995, the average dry deposition for sulfur accounted for 67% of sulfur emission in Chongqing. This result indicated that the difference between dry deposition and emission was deposited as precipitation and transported to other area.

収録刊行物

  • エアロゾル研究 = Journal of aerosol research  

    エアロゾル研究 = Journal of aerosol research 13(1), 44-50, 1998-03-20 

    日本エアロゾル学会

参考文献:  21件

参考文献を見るにはログインが必要です。ユーザIDをお持ちでない方は新規登録してください。

各種コード

  • NII論文ID(NAID)
    10002782887
  • NII書誌ID(NCID)
    AN10041511
  • 本文言語コード
    JPN
  • 資料種別
    ART
  • ISSN
    09122834
  • NDL 記事登録ID
    4437511
  • NDL 雑誌分類
    ZP5(科学技術--化学・化学工業--化学工学)
  • NDL 請求記号
    Z17-1062
  • データ提供元
    CJP書誌  NDL  J-STAGE 
ページトップへ