名古屋および松江における降水中硫黄・窒素酸化物の起源

書誌事項

タイトル別名
  • Origin of sulfur and nitrogen oxides in acid precipitation at Nagoya and Matsue
  • ナゴヤ オヨビ マツエ ニ オケル コウスイチュウ イオウ チッソ サンカブツ

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抄録

Sulfur and nitrogen oxides in acid precipitation were observed at Nagoya and Matsue by collecting rainwater in each rainfall. The observation results using trajectory analysis show that these oxides mainly came from urban area at Nagoya, and their mass did not change much with season and the route of trajectories. In contrast, sulfur oxide mainly came from biological origin rather than urban one at Matsue inferred from nssδ34S data, and its mass increased in winter. The seasonal and trajectorical variation in nssSO42-/NO3- ratio and nssδ34S implies that the contribution of continental and/or maritime biogenic sulfur to sulfur oxide in acid precipitation increased in winter at Matsue due to the seasonal wind.

収録刊行物

  • 地球化学

    地球化学 31 (4), 235-243, 1997

    一般社団法人日本地球化学会

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