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代志光, 张承中, 李勇, 周变红, 马文静, 韩婧, 李文韬. 西安夏季PM2.5中碳组分与水溶性无机离子特征分析[J]. 环境工程学报, 2014, 8(10): 4366-4372.
引用本文: 代志光, 张承中, 李勇, 周变红, 马文静, 韩婧, 李文韬. 西安夏季PM2.5中碳组分与水溶性无机离子特征分析[J]. 环境工程学报, 2014, 8(10): 4366-4372.
shu
Dai Zhiguang, Zhang Chengzhong, Li Yong, Zhou Bianhong, Ma Wenjing, Han Jing, Li Wentao. Analysis of carbon components and water-soluble inorganic ions in PM2.5 of Xi’an during summer[J]. Chinese Journal of Environmental Engineering, 2014, 8(10): 4366-4372.
Citation: Dai Zhiguang, Zhang Chengzhong, Li Yong, Zhou Bianhong, Ma Wenjing, Han Jing, Li Wentao. Analysis of carbon components and water-soluble inorganic ions in PM2.5 of Xi’an during summer[J]. Chinese Journal of Environmental Engineering, 2014, 8(10): 4366-4372.
shu

西安夏季PM2.5中碳组分与水溶性无机离子特征分析

  • 1.

    西安建筑科技大学环境与市政工程学院, 西安 710055

  • 2.

    宝鸡文理学院地理与环境学院, 宝鸡 721013

  • 3.

    西安市环境监测站, 西安 710054

  • 基金项目:

    陕西省自然科学基金资助项目（2007D20）

    陕西省教育厅专项科研基金资助项目（06JK268）

    西安市大气污染因子监控系统建设项目

  • 中图分类号: X513

Analysis of carbon components and water-soluble inorganic ions in PM2.5 of Xi’an during summer

  • 1.

    School of Environmental and Municipal Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China

  • 2.

    School of Geography and Environment, Baoji University of Arts and Sciences, Baoji 721013, China

  • 3.

    Xi'an Environmental Monitoring Centre, Xi'an 710054, China

  • Fund Project:

  • 摘要: 2012年8月6日—22日利用大气细颗粒物水溶性组分在线监测分析系统和大气气溶胶OC/EC在线分析仪在线分析了西安PM2.5中的水溶性无机离子和OC、EC，并结合气溶胶前体物SO2、NO2和部分气象参数的监测数据进行了分析。结果表明，PM2.5中OC、EC和主要水溶性组分SO42-、NH4+和NO3-的比重分别为：14.34%、5.35%、26.32%、12.90%和11.28%；以有机物（OM）为主要成分的总碳气溶胶（TCA）在PM2.5中的质量分数为28.30%，其中光化学反应导致OM中二次组分（SOC）高达45.30%；对主要水溶性组分之间的相关性分析发现，NO3-、SO42-、NH4+ 3种主要组分之间的结合形态为（NH4）2SO4和NH4NO3，对Mg2+和Ca2+的相关分析反映其有多种共同源；此外，硫氧化率（SOR）和氮氧化率（NOR）均较高，表明大气中存在较强的光化学反应。PM2.5的各组分因子分析得到4个主要来源（机动车尾气和燃煤、土壤建筑尘和生物质燃烧、二次硝酸盐气溶胶、二次硫酸盐气溶胶）。
    Abstract: The water soluble inorganic ions and OC,EC in PM2.5 in Xi'an were monitored by an on-line ambient ions monitor and OC/EC online analyzer from 6 to 22 August 2012.Aerosol precursors (SO2,NO2) and some meteorological parameters were also monitored and analyzed.The results showed that OC,EC and dominant water soluble ions (SO42-,NH4+,NO3-) in PM2.5 were 14.34%,5.35%,26.32%,12.90% and 11.28%,respectively.TCA,of which the major element was OM,accounted for 28.30% of PM2.5.While photochemical reaction led to increasing of secondary organic carbon (SOC) in OM,up to 45.30%.The correlation analysis of main water soluble ions demonstrated that NO3-,SO42- and NH4+ were combined in forms of (NH4)2SO4 and NH4NO3.The analysis also indicated that Mg2+ and Ca2+ had more than one common source.Furthermore,SOR and NOR were always high which showed that a drastic photochemical reaction occurred in the air.Four sources of PM2.5 were discovered by the method of factor analysis,including exhaust gas of vehicle and coal,dust of soil and construction,secondary nitrate aerosols and secondary sulfate aerosols.
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  • 收稿日期:  2013-10-11
  • 刊出日期:  2014-09-28
代志光, 张承中, 李勇, 周变红, 马文静, 韩婧, 李文韬. 西安夏季PM2.5中碳组分与水溶性无机离子特征分析[J]. 环境工程学报, 2014, 8(10): 4366-4372.
引用本文: 代志光, 张承中, 李勇, 周变红, 马文静, 韩婧, 李文韬. 西安夏季PM2.5中碳组分与水溶性无机离子特征分析[J]. 环境工程学报, 2014, 8(10): 4366-4372.
shu
Dai Zhiguang, Zhang Chengzhong, Li Yong, Zhou Bianhong, Ma Wenjing, Han Jing, Li Wentao. Analysis of carbon components and water-soluble inorganic ions in PM2.5 of Xi’an during summer[J]. Chinese Journal of Environmental Engineering, 2014, 8(10): 4366-4372.
Citation: Dai Zhiguang, Zhang Chengzhong, Li Yong, Zhou Bianhong, Ma Wenjing, Han Jing, Li Wentao. Analysis of carbon components and water-soluble inorganic ions in PM2.5 of Xi’an during summer[J]. Chinese Journal of Environmental Engineering, 2014, 8(10): 4366-4372.
shu

西安夏季PM2.5中碳组分与水溶性无机离子特征分析

  • 1.  西安建筑科技大学环境与市政工程学院, 西安 710055
  • 2.  宝鸡文理学院地理与环境学院, 宝鸡 721013
  • 3.  西安市环境监测站, 西安 710054
  • 收稿日期:  2013-10-11
基金项目:

陕西省自然科学基金资助项目（2007D20）

陕西省教育厅专项科研基金资助项目（06JK268）

西安市大气污染因子监控系统建设项目

摘要: 2012年8月6日—22日利用大气细颗粒物水溶性组分在线监测分析系统和大气气溶胶OC/EC在线分析仪在线分析了西安PM2.5中的水溶性无机离子和OC、EC，并结合气溶胶前体物SO2、NO2和部分气象参数的监测数据进行了分析。结果表明，PM2.5中OC、EC和主要水溶性组分SO42-、NH4+和NO3-的比重分别为：14.34%、5.35%、26.32%、12.90%和11.28%；以有机物（OM）为主要成分的总碳气溶胶（TCA）在PM2.5中的质量分数为28.30%，其中光化学反应导致OM中二次组分（SOC）高达45.30%；对主要水溶性组分之间的相关性分析发现，NO3-、SO42-、NH4+ 3种主要组分之间的结合形态为（NH4）2SO4和NH4NO3，对Mg2+和Ca2+的相关分析反映其有多种共同源；此外，硫氧化率（SOR）和氮氧化率（NOR）均较高，表明大气中存在较强的光化学反应。PM2.5的各组分因子分析得到4个主要来源（机动车尾气和燃煤、土壤建筑尘和生物质燃烧、二次硝酸盐气溶胶、二次硫酸盐气溶胶）。

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