CAJ | 학술논문

2008年7—10月在中国科学院大气物理研究所采集气溶胶样品,用离子色谱进行水溶性无机离子分析,并对其组成、质量浓度变化特征、相关性及存在形式、来源解析等方面进行研究。结果显示,整个采样期间,SO42-、NO3-和NH4＋是最主要的水溶性离子,主要以（NH4）2SO4和NH4NO3形式存在;SO42-、NO3-和NH4＋、Ca2＋和Mg2＋的相关系数都较高,具有很好的同源性。NO3-/SO42-质量浓度比值表明,奥运前,固定源（燃煤）对水溶性离子的贡献大于流动源（机动车）,而奥运期间和奥运后则相反。因子分析表明,交通、燃煤、土壤、建筑尘和生物质燃烧源是采样期间北京大气污染的主要来源。
2008년7—10월재중국과학원대기물리연구소채집기용효양품,용리자색보진행수용성무궤리자분석,병대기조성、질량농도변화특정、상관성급존재형식、래원해석등방면진행연구。결과현시,정개채양기간,SO42-、NO3-화NH4＋시최주요적수용성리자,주요이（NH4）2SO4화NH4NO3형식존재;SO42-、NO3-화NH4＋、Ca2＋화Mg2＋적상관계수도교고,구유흔호적동원성。NO3-/SO42-질량농도비치표명,오운전,고정원（연매）대수용성리자적공헌대우류동원（궤동차）,이오운기간화오운후칙상반。인자분석표명,교통、연매、토양、건축진화생물질연소원시채양기간북경대기오염적주요래원。
Aerosols are sampled at Institute of Atmospheric Physics,Chinese Academy of Sciences from July to October 2008.The mass concentrations of water-soluble inorganic ions are determined with ion chromatogram（IC）.This aims to investigate the composition,characteristics of mass concentration variation,relevance and form of the main water-soluble inorganic ions and their sources.The results show that SO42-,NO3-and NH4＋are the main water-soluble inorganic ions in the aerosol samples,and they are mainly in the form of （NH4）2SO4 and NH4NO3 in aerosol particles.The correlation coefficients between SO42-,NO3-and NH4＋,Ca2＋ and Mg2＋are high,showing a good homology among these ions.Mass concentration ratio of NO3-/SO42indicates that,before 2008 Beijing Olympics,the stationary source（coal burning） is the main pollution source for water-soluble species compared to the mobile source（vehicle）,which is opposite to those during the Olympics and after it.Factor analysis shows that vehicle,coal combustion,soil,building dust and biomass burning are the main sources for Beijing air pollution during the sampling period.