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中文摘要：
运用离子色谱对2009年冬季中国东海大气气溶胶中水溶性离子Cl-、NO3-、SO42-、CH3SO3-（MSA）、Na＋、K＋、NH 4＋、Mg2＋、Ca2＋进行了测定,同时由SPSS（statistical package for social sciences）软件进行相关性分析探讨其来源.分析结果表明,气溶胶中二次离子（非海盐硫酸盐nss-SO42-、NO3-、NH 4＋）浓度最高,占总测定离子的78.4%.阴阳离子当量浓度平衡表明气溶胶中酸性离子中和不充分,NH 4＋在不同化合物中的计量比表明NH4HSO4是气溶胶中NH 4＋与SO24-的主要结合形式.气溶胶中甲基磺酸（MSA）的浓度较低,平均值为（0.008 8±0.003 7）μg.m-3.通过计算发现海盐硫酸盐对总硫酸盐的贡献为4.5%,生源硫酸盐对非海盐硫酸盐（nss-SO42-）的贡献为1.4%,表明人为输入是中国东海大气气溶胶中硫酸盐的主要来源.另外,气溶胶中nss-SO42-/NO 3-为1.08,反映了近年来中国能源结构调整的效果.
英文摘要：
With the ion chromatographic method,the water-soluble ion concentrations of Cl-,NO-3,SO2-4,CH3SO-3（MSA）,Na＋,K＋,NH＋4,Mg2＋and Ca2 in the atmospheric aerosol over the East China Sea in winter 2009 was determined and the sources of these ions was investigated through correlation analysis by SPSS（statistical package for social sciences） software.The results indicated that the concentrations of secondary ions in aerosol were the highest（non-sea-salt sulfates nss-SO2-4,NO-3,NH＋4）,accounting for 78.4% of total determining ions.The calculation results of equivalent concentration of anions and cations showed that the acid ions of aerosol were neutralized inadequately.The stoichiometry of NH＋4 in different compounds showed that NH4HSO4 was the main binding form of NH＋4 and SO2-4 in the aerosol.The concentration of methanesulfonic acid（MSA） was low,and the average value was（0.008 8±0.003 7） μg·m-3.According to calculation,the contribution of sea-salt sulfates was 4.5% to total sulfates,and that of biogenous sulfates was 1.4% to non-sea-salt sulfate（nss-SO2-4）,showing that human input was the main source of sulfates in aerosol over the East China Sea.In addition,nss-SO2-4/NO-3 in the aerosol was 1.08,reflecting that China＇s energy structure adjustment played an important role in recent years.
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