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菏泽市夏季PM10和PM25中水溶性离子组分污染特征

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程渊, 刘保双, 吴建会, 毕晓辉, 张勤勋, 冯银厂, 张裕芬. 菏泽市夏季PM10和PM25中水溶性离子组分污染特征[J]. 环境化学, 2019, 38(4): 729-737. doi: 10.7524/j.issn.0254-6108.2018051805
引用本文: 程渊, 刘保双, 吴建会, 毕晓辉, 张勤勋, 冯银厂, 张裕芬. 菏泽市夏季PM10和PM25中水溶性离子组分污染特征[J]. 环境化学, 2019, 38(4): 729-737. doi: 10.7524/j.issn.0254-6108.2018051805
shu
CHENG Yuan, LIU Baoshuang, WU Jianhui, BI Xiaohui, ZHANG Qinxun, FENG Yinchang, ZHANG Yufen. Pollution characteristics of water-soluble ions in ambient PM10 and PM2.5 during summer of 2015 in Heze City[J]. Environmental Chemistry, 2019, 38(4): 729-737. doi: 10.7524/j.issn.0254-6108.2018051805
Citation: CHENG Yuan, LIU Baoshuang, WU Jianhui, BI Xiaohui, ZHANG Qinxun, FENG Yinchang, ZHANG Yufen. Pollution characteristics of water-soluble ions in ambient PM10 and PM2.5 during summer of 2015 in Heze City[J]. Environmental Chemistry, 2019, 38(4): 729-737. doi: 10.7524/j.issn.0254-6108.2018051805
shu

菏泽市夏季PM10和PM25中水溶性离子组分污染特征

  • 1.

    国家环境保护城市空气颗粒物污染防治重点实验室, 南开大学环境科学与工程学院, 天津, 300350;

  • 2.

    菏泽市环境监测中心站, 菏泽, 274000

  • 基金项目:

    国家自然科学基金（21407081），国家重点研发计划-大气污染多组分在线源解析集成技术（2016YFC0208500）和中央高校基本科研业务费资助.

Pollution characteristics of water-soluble ions in ambient PM10 and PM2.5 during summer of 2015 in Heze City

  • 1.

    State Environmental Protection Key Laboratory of Urban Ambient Air Particulate Matter Pollution Prevention, College of Environmental Science and Engineering, Nankai University, Tianjin, 300350, China;

  • 2.

    Heze Environmental Monitoring Center Station, Heze, 274000, China

  • Fund Project: Supported by the National Natural Science Foundation of China (21407081),the National Key Research and Development Program of China (2016YFC0208500) and Fundamental Research Funds For the Central Universities.

  • 摘要: 为分析菏泽市大气颗粒物及其水溶性离子组分特征，本研究于2015年8月期间在菏泽市6个监测点位采集环境受体PM10和PM2.5样品共120个，利用离子色谱法测定颗粒物中水溶性无机离子（SO42-、NO3-、NH4+、Cl-、Ca2+、K+、Na+、Mg2+、F-），并同步收集气象参数及气态污染物质量浓度等资料.结果表明，菏泽市夏季环境受体中颗粒物质量浓度ρ（PM10）和ρ（PM2.5）分别为94.5 μg·m-3、55.2 μg·m-3，稍低于国内其他城市，这与各城市经济发展、产业能源结构、气象条件等因素有关.PM2.5/PM10值在0.5-0.8之间，表明菏泽市夏季细颗粒物（PM2.5）污染较为严重.但PM10和PM2.5中水溶性离子质量总浓度ρ（WSIs）分别为30.5 μg·m-3、17.0 μg·m-3；质量分数w（WSIs）分别为32.4%、29.6%.其中SO42-、NO3-、NH4+为PM10和PM2.5中主要水溶性离子，3种离子浓度和分别占PM10和PM2.5中总离子浓度的84.3%、88.3%.SO42-、NO3-、NH4+、K+主要集中在细颗粒物（PM2.5）中，Ca2+、Mg2+则广泛存在于粗颗粒物（PM10）中.各采样点的PM10和PM2.5中，SO42-、NO3-、NH4+、Ca2+和Mg2+浓度分布具有空间差异.离子相关性表明，NH4+与SO42-、NO3-相关性均较强，3种离子主要以NH4HSO4、NH4NO3形式存在.PM10和PM2.5中NO3-/SO42-值分别在0.41-0.49和0.36-0.47之间，平均值分别为0.46、0.42，表明固定源是菏泽市夏季颗粒物污染的主要污染贡献源.
    Abstract: To investigate the pollution characteristics of water-soluble ions in the ambient PM10 and PM2.5 in Heze, 120 samples were collected at six sites from August 13 to 23, 2015. The water-soluble ions (SO42-,NO3-,NH4+,Cl-,Ca2+,K+,Na+,Mg2+,F-) in particulate matter samples were determined using ion chromatography. Meteorological parameters and the concentrations of gaseous pollutants at the sampling sites were obtained synchronously. The results indicated that the mean concentrations of PM10 and PM2.5 during the summer were up to 94.5 and 55.2 μg·m-3, respectively, which was lower than some domestic cities. This may be affected by factors such as economic development, industrial energy structure, meteorological conditions and so on. The range of PM2.5/PM10 ratio was 0.5 to 0.8, suggesting the fine particles pollution in Heze was more serious during the summer. The concentrations of the total WSIs in PM10 and PM2.5 are 30.5 μg·m-3 and 17.0 μg·m-3, accounting for 32.4% and 29.6% in PM10 and PM2.5, respectively. The dominating WSIs are SO42-, NO3- and NH4+, which account for 84.3% of the total WSIs in PM10 and 88.3% of the total WSIs in PM2.5, respectively. SO42-,NO3-,NH4+ and K+ are mainly concentrated in the fine particles (PM2.5),Ca2+ and Mg2+ are mainly concentrated in the coarse particles (PM10). There are significantly spatial heterogeneity among the concentrations of SO42-, NO3-, NH4+, Ca2+ and Mg2+ in ambient PM10 and PM2.5 at each sampling site. The strong correlation of SO42-, NO3- and NH4+ shows main existence from them are NH4HSO4, NH4NO3. In addition, the average ratio of NO3-/SO42- is up to 0.46 in PM10 and 0.42 in PM2.5, respectively, indicating that the combustion is major contributor to the particulate matter in Heze during summer.
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  • 收稿日期:  2018-05-18
  • 刊出日期:  2019-04-15
程渊, 刘保双, 吴建会, 毕晓辉, 张勤勋, 冯银厂, 张裕芬. 菏泽市夏季PM10和PM25中水溶性离子组分污染特征[J]. 环境化学, 2019, 38(4): 729-737. doi: 10.7524/j.issn.0254-6108.2018051805
引用本文: 程渊, 刘保双, 吴建会, 毕晓辉, 张勤勋, 冯银厂, 张裕芬. 菏泽市夏季PM10和PM25中水溶性离子组分污染特征[J]. 环境化学, 2019, 38(4): 729-737. doi: 10.7524/j.issn.0254-6108.2018051805
shu
CHENG Yuan, LIU Baoshuang, WU Jianhui, BI Xiaohui, ZHANG Qinxun, FENG Yinchang, ZHANG Yufen. Pollution characteristics of water-soluble ions in ambient PM10 and PM2.5 during summer of 2015 in Heze City[J]. Environmental Chemistry, 2019, 38(4): 729-737. doi: 10.7524/j.issn.0254-6108.2018051805
Citation: CHENG Yuan, LIU Baoshuang, WU Jianhui, BI Xiaohui, ZHANG Qinxun, FENG Yinchang, ZHANG Yufen. Pollution characteristics of water-soluble ions in ambient PM10 and PM2.5 during summer of 2015 in Heze City[J]. Environmental Chemistry, 2019, 38(4): 729-737. doi: 10.7524/j.issn.0254-6108.2018051805
shu

菏泽市夏季PM10和PM25中水溶性离子组分污染特征

  • 1.  国家环境保护城市空气颗粒物污染防治重点实验室, 南开大学环境科学与工程学院, 天津, 300350;
  • 2.  菏泽市环境监测中心站, 菏泽, 274000
  • 收稿日期:  2018-05-18
基金项目:

国家自然科学基金（21407081），国家重点研发计划-大气污染多组分在线源解析集成技术（2016YFC0208500）和中央高校基本科研业务费资助.

摘要: 为分析菏泽市大气颗粒物及其水溶性离子组分特征，本研究于2015年8月期间在菏泽市6个监测点位采集环境受体PM10和PM2.5样品共120个，利用离子色谱法测定颗粒物中水溶性无机离子（SO42-、NO3-、NH4+、Cl-、Ca2+、K+、Na+、Mg2+、F-），并同步收集气象参数及气态污染物质量浓度等资料.结果表明，菏泽市夏季环境受体中颗粒物质量浓度ρ（PM10）和ρ（PM2.5）分别为94.5 μg·m-3、55.2 μg·m-3，稍低于国内其他城市，这与各城市经济发展、产业能源结构、气象条件等因素有关.PM2.5/PM10值在0.5-0.8之间，表明菏泽市夏季细颗粒物（PM2.5）污染较为严重.但PM10和PM2.5中水溶性离子质量总浓度ρ（WSIs）分别为30.5 μg·m-3、17.0 μg·m-3；质量分数w（WSIs）分别为32.4%、29.6%.其中SO42-、NO3-、NH4+为PM10和PM2.5中主要水溶性离子，3种离子浓度和分别占PM10和PM2.5中总离子浓度的84.3%、88.3%.SO42-、NO3-、NH4+、K+主要集中在细颗粒物（PM2.5）中，Ca2+、Mg2+则广泛存在于粗颗粒物（PM10）中.各采样点的PM10和PM2.5中，SO42-、NO3-、NH4+、Ca2+和Mg2+浓度分布具有空间差异.离子相关性表明，NH4+与SO42-、NO3-相关性均较强，3种离子主要以NH4HSO4、NH4NO3形式存在.PM10和PM2.5中NO3-/SO42-值分别在0.41-0.49和0.36-0.47之间，平均值分别为0.46、0.42，表明固定源是菏泽市夏季颗粒物污染的主要污染贡献源.

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