【摘要】 氮是大气气溶胶的重要组成部分.气溶胶中的氮组分参与大气中的光化学反应,进而改变大气组成,影响气候变化与人类健康.同时,大气中过量的颗粒氮改变了氮素的自然循环,当它们沉降到地表时对陆地和水生生态系统产生深远的影响.本文综述了近年来气溶胶氮组分的研究进展,按其化学形态分别阐述了气溶胶中无机氮和有机氮的来源及其相关大气化学过程等,同时探讨了气溶胶中氮的同位素特征,指出该研究领域的薄弱环节并对其研究前景进行了展望.更多还原

【Abstract】 As a key component,nitrogen constituents in atmospheric aerosols can participate in the atmospheric photochemical reactions and thereby altering the atmospheric composition. They can also exert great influence on the climate and human health. Excessive levels of atmospheric particulate nitrogen have profoundly changed the natural nitrogen cycle. Furthermore,after the deposition,it has dramatically affected the terrestrial / aquatic ecosystems. In this review,the research progress on nitrogen in atmospheric aerosols is summarized in terms of the chemical composition of inorganic /organic nitrogen,their sources and related atmospheric chemical processes,and the nitrogen isotopic compositions. Lastly,the shortcomings of previous researches and the future research prospective are discussed.更多还原