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郭安可, 郭照冰, 张海潇, 冯星伟, 朱彬, 袁勋. 南京北郊冬季PM2.5中水溶性离子以及碳质组分特征分析[J]. 环境化学, 2017, 36(2): 248-256. doi: 10.7524/j.issn.0254-6108.2017.02.2016061703
引用本文: 郭安可, 郭照冰, 张海潇, 冯星伟, 朱彬, 袁勋. 南京北郊冬季PM2.5中水溶性离子以及碳质组分特征分析[J]. 环境化学, 2017, 36(2): 248-256. doi: 10.7524/j.issn.0254-6108.2017.02.2016061703
shu
GUO Anke, GUO Zhaobing, ZHANG Haixiao, FENG Xingwei, ZHU Bin, YUAN Xun. Analysis of water soluble ions and carbon component in PM2.5 in the northern suburb of Nanjing in winter[J]. Environmental Chemistry, 2017, 36(2): 248-256. doi: 10.7524/j.issn.0254-6108.2017.02.2016061703
Citation: GUO Anke, GUO Zhaobing, ZHANG Haixiao, FENG Xingwei, ZHU Bin, YUAN Xun. Analysis of water soluble ions and carbon component in PM2.5 in the northern suburb of Nanjing in winter[J]. Environmental Chemistry, 2017, 36(2): 248-256. doi: 10.7524/j.issn.0254-6108.2017.02.2016061703
shu

南京北郊冬季PM2.5中水溶性离子以及碳质组分特征分析

  • 1.

    南京信息工程大学环境科学与工程学院, 南京, 210044;

  • 2.

    大气环境与装备技术协同创新中心, 南京, 210044;

  • 3.

    江苏省大气环境监测与污染控制高技术研究重点实验室, 南京, 210044;

  • 4.

    南京信息工程大学大气物理学院, 南京, 210044

  • 基金项目:

    国家自然科学基金（41373023，91544229-02）与江苏省大学生实践创新训练计划项目（201510300048，201610300038）资助.

Analysis of water soluble ions and carbon component in PM2.5 in the northern suburb of Nanjing in winter

  • 1.

    School of Environmental Science and Engineering, Nanjing University of Information Science & Technology, Nanjing, 210044, China;

  • 2.

    Collaborative Innovation Center of Atmospheric Environment and Equipment Technology, Nanjing, 210044, China;

  • 3.

    Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control, Nanjing, 210044, China;

  • 4.

    Institute of Atmospheric Physics, Nanjing University of Information Science & Technology, Nanjing, 210044, China

  • Fund Project: Supported by the National Natural Science Foundation of China(41373023,91544229-02) and Jiangsu Student Innovation Training Program (201510300048, 201610300038).

  • 摘要: 2015年12月21日-2016年2月29日在南京北郊进行了大气细颗粒物PM2.5的观测，并分析其中主要水溶性离子（Na+、NH4+、K+、Mg2+、Ca2+、Cl-、NO3-、SO42-）浓度以及碳质组分（OC、EC）含量.结果表明，观测期间南京北郊冬季大气细颗粒物（PM2.5）污染较为严重，二次离子（NO3-+SO42-+NH4+）为主要污染成分，占PM2.5浓度的47%.对36个观测日进行SO42--NO3--NH4+三相聚类，发现3种离子在整个体系中的配比存在差异.排放源类型所造成的前体物的不同以及NH4+与SO42-、NO3-的结合方式是造成这种差异的主要原因.OC与EC的变化趋势相似，OC含量较高，而且浓度波动幅度较大.OC/EC的值为2.63±0.90，说明普遍存在二次反应产生的SOC.K+/PM2.5比值法表明，除燃煤与机动车尾气排放以外，生物质燃烧亦是PM2.5污染的排放源.
    Abstract: PM2.5 samples were collected during December 21, 2015 and February 29, 2016 in the northern suburb of Nanjing. The concentrations of main water soluble ions and the content of carbon component were measured. The results shows that PM2.5 pollution during the study period was quite high. Secondary ions were the main components, accounting for 47% of the total PM2.5 concentration. Three phase clustering of SO42--NO4--NH4+ during the 36 observation days showed that the ratio of these three ions in the whole PM2.5 was different. Type of emission source and the mode combination were the main reasons of this difference. OC and EC had a similar change pattern. OC content was higher and the concentration fluctuated remarkably. OC/EC value was 2.63±0.90, which suggested common existence of SOC from secondary reactions.K+/PM2.5 values indicated that biomass burning was also a source of PM2.5 pollution in addition to coal combustion and vehicle exhaust.
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  • 收稿日期:  2016-06-17
  • 刊出日期:  2017-02-15
郭安可, 郭照冰, 张海潇, 冯星伟, 朱彬, 袁勋. 南京北郊冬季PM2.5中水溶性离子以及碳质组分特征分析[J]. 环境化学, 2017, 36(2): 248-256. doi: 10.7524/j.issn.0254-6108.2017.02.2016061703
引用本文: 郭安可, 郭照冰, 张海潇, 冯星伟, 朱彬, 袁勋. 南京北郊冬季PM2.5中水溶性离子以及碳质组分特征分析[J]. 环境化学, 2017, 36(2): 248-256. doi: 10.7524/j.issn.0254-6108.2017.02.2016061703
shu
GUO Anke, GUO Zhaobing, ZHANG Haixiao, FENG Xingwei, ZHU Bin, YUAN Xun. Analysis of water soluble ions and carbon component in PM2.5 in the northern suburb of Nanjing in winter[J]. Environmental Chemistry, 2017, 36(2): 248-256. doi: 10.7524/j.issn.0254-6108.2017.02.2016061703
Citation: GUO Anke, GUO Zhaobing, ZHANG Haixiao, FENG Xingwei, ZHU Bin, YUAN Xun. Analysis of water soluble ions and carbon component in PM2.5 in the northern suburb of Nanjing in winter[J]. Environmental Chemistry, 2017, 36(2): 248-256. doi: 10.7524/j.issn.0254-6108.2017.02.2016061703
shu

南京北郊冬季PM2.5中水溶性离子以及碳质组分特征分析

  • 1.  南京信息工程大学环境科学与工程学院, 南京, 210044;
  • 2.  大气环境与装备技术协同创新中心, 南京, 210044;
  • 3.  江苏省大气环境监测与污染控制高技术研究重点实验室, 南京, 210044;
  • 4.  南京信息工程大学大气物理学院, 南京, 210044
  • 收稿日期:  2016-06-17
基金项目:

国家自然科学基金（41373023，91544229-02）与江苏省大学生实践创新训练计划项目（201510300048，201610300038）资助.

摘要: 2015年12月21日-2016年2月29日在南京北郊进行了大气细颗粒物PM2.5的观测，并分析其中主要水溶性离子（Na+、NH4+、K+、Mg2+、Ca2+、Cl-、NO3-、SO42-）浓度以及碳质组分（OC、EC）含量.结果表明，观测期间南京北郊冬季大气细颗粒物（PM2.5）污染较为严重，二次离子（NO3-+SO42-+NH4+）为主要污染成分，占PM2.5浓度的47%.对36个观测日进行SO42--NO3--NH4+三相聚类，发现3种离子在整个体系中的配比存在差异.排放源类型所造成的前体物的不同以及NH4+与SO42-、NO3-的结合方式是造成这种差异的主要原因.OC与EC的变化趋势相似，OC含量较高，而且浓度波动幅度较大.OC/EC的值为2.63±0.90，说明普遍存在二次反应产生的SOC.K+/PM2.5比值法表明，除燃煤与机动车尾气排放以外，生物质燃烧亦是PM2.5污染的排放源.

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