Contribution of water soluble organic nitrogen to total nitrogen in marine aerosols over the East China Sea and western North Pacific
Contribution of water soluble organic nitrogen to total nitrogen in marine aerosols over the East China Sea and western North Pacific
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DOI：
10.1016/j.atmosenv.2006.06.026
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发表时间：
2006-12
影响因子：
5
通讯作者：
Tokuhiro Nakamura;H. Ogawa;Dileep Kumar Maripi;M. Uematsu
中科院分区：
文献类型：
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作者：
Tokuhiro Nakamura;H. Ogawa;Dileep Kumar Maripi;M. Uematsu
本文介绍了东海和西北太平洋气溶胶中水溶性有机氮（ONws）的浓度、尺寸分布、地理分布和来源信息，以了解其对东亚地区秋季和春季大气过程和海洋生态系统的影响。结果显示，东海秋季和春季 ONw 对气溶胶中总氮的贡献分别约为 24% 和 10%。颗粒ONw主要以细尺寸颗粒存在。气体到颗粒的转化可能是ONws的主要形成过程。在科萨事件期间，颗粒 ONws 在细模式和粗模式中的出现表明气态 ON 对粗模式矿物的吸附和/或粘附。 ONw 的这种行为是独特的，而 NH4+ 主要出现在精细模式中，而 NO3- 主要出现在粗略模式中。
This paper presents information on concentrations, size distributions, geographical distributions and sources of water soluble organic nitrogen (ONws) in aerosols over the East China Sea and western North Pacific to understand its impact on the atmospheric processes and the oceanic ecosystems in the autumn and spring in the East Asian region. Results revealed ONwscontributions to the total nitrogen in aerosols to be ∼24% and ∼10% over the East China Sea in the autumn and the spring, respectively. The particulate ONwsmainly existed in fine sized particles. Gas to particle conversion may be the major formation process for ONws. Occurrence of particulate ONwsin both fine and coarse modes during the Kosa event suggests gaseous ON adsorption and/or adhesion to the coarse mode mineral. This behavior of ONwsis unique whereas NH4+occurred dominantly in fine mode and NO3-in coarse mode.