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成都市温江区PM2.5中有机和无机含硫化合物的分布特征

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邹明汐, 周易, 谢玲玲, 李梦琪, 杜金戈, 李黎. 成都市温江区PM2.5中有机和无机含硫化合物的分布特征[J]. 环境化学, 2018, 37(1): 130-137. doi: 10.7524/j.issn.0254-6108.2017052206
引用本文: 邹明汐, 周易, 谢玲玲, 李梦琪, 杜金戈, 李黎. 成都市温江区PM2.5中有机和无机含硫化合物的分布特征[J]. 环境化学, 2018, 37(1): 130-137. doi: 10.7524/j.issn.0254-6108.2017052206
shu
ZOU Mingxi, ZHOU Yi, XIE Lingling, LI Mengqi, DU Jin, LI Li. Distribution of organic and inorganic sulfur compounds in PM2.5 aerosols in Wenjiang District, Chengdu[J]. Environmental Chemistry, 2018, 37(1): 130-137. doi: 10.7524/j.issn.0254-6108.2017052206
Citation: ZOU Mingxi, ZHOU Yi, XIE Lingling, LI Mengqi, DU Jin, LI Li. Distribution of organic and inorganic sulfur compounds in PM2.5 aerosols in Wenjiang District, Chengdu[J]. Environmental Chemistry, 2018, 37(1): 130-137. doi: 10.7524/j.issn.0254-6108.2017052206
shu

成都市温江区PM2.5中有机和无机含硫化合物的分布特征

  • 1.

    四川省农村环境保护工程中心,四川农业大学环境学院, 成都, 611130

  • 基金项目:

    清华大学大气复合污染来源与控制实验室2015开放基金（110001122），生态文明（温江）研究中心科研项目（ECWY2017001）和四川农业大学大学生科研兴趣培养计划（20150136）资助.

Distribution of organic and inorganic sulfur compounds in PM2.5 aerosols in Wenjiang District, Chengdu

  • 1.

    Rural Environment Protection Engineering & Technology Center of Sichuan Province, College of Environment, Sichuan Agricultural University, Chengdu, 611130, China

  • Fund Project: Supoorted by the Open Fund of State Environmental Protection Key Laboratory of Sources and Control of Air Pollution Complex (SCAPC) of Tsinghua University (110001122), the Program of Ecological Civilization Research Center (Wenjiang) (ECWY2017001) and the Student Program of Scientific Interest Cultivation Plan of Sichuan Agricultural University (20150136).

  • 摘要: 本研究在四川农业大学成都校区设立采样点，分别于春、夏、秋、冬的四季代表时间段采集PM2.5样品.在实验室应用电感耦合等离子体原子发射光谱仪（inductively coupled plasma-atomic emission spectroscopy，ICP-AES）测定样本中硫的总量；同时，利用离子色谱测定细粒子中硫酸盐的含量，探讨大气PM2.5中含硫化合物的季节变化，气象因子以及污染天气对含硫化合物的影响.研究表明，大气细颗粒中总硫、有机硫、硫酸根的年浓度值分别为5.41±3.61、1.46±1.54、11.85±7.23 μg·m-3.有机硫占总硫的比值春季为15.6%±10.2%，夏季为27.1%±14.0%，秋季为27.5%±21.7%，冬季为22.4%±13.3%.有机硫占总硫的平均比值夏、秋两季略高于春、冬两季，说明温暖的气候有利于气溶胶中硫酸盐转化为有机硫.冬季污染天气下有机硫/总硫的比值为28.2%±12.4%，明显高于非污染天气下有机硫/总硫的平均比值14.2%±10.9%.硫酸盐和有机物在大气颗粒物中的汇聚，有机和无机污染物浓度同时增多，可促使PM2.5中有机硫化合物的形成.
    Abstract: Samples of seasonal 24 h PM2.5 aerosols were collected on the Chengdu Campus of Sichuan Agricultural University from Jane 2015 toApril 2016. Concentrations of total sulfur (TS) in aerosols were measured by an Inductively Coupled Plasma-Atomic Emission Spectrometer (ICP-AES),while sulfate was measured by Ion Chromatography. Seasonal variations of sulfur compounds, influences of meteorological parameters, and distribution of sulfur compounds under polluted and non-polluted weather were analyzed. The results show that the annual levels of TS, organic sulfur (OS) and SO42- were 5.41±3.61, 1.46±1.54 and 11.85±7.23 μg·m-3 respectively while OS/TS ratios are 15.6%±10.2%, 27.1%±14.0%, 27.5%±21.7% and 22.4%±13.3% in spring, summer, autumn and winter respectively. The OS/TS ratios are higher in summer and autumn, yet lower in spring and winter, suggesting that warm climate promoting OS formation. Moreover, the average OS/TS ratio 28.2%±12.4% on the polluted days, while 14.2%±10.9% on the non-polluted days in winter. The ratios are significantly higher on the polluted days than those on the non-polluted days, indicating that instantaneous increases and congregation of organic compounds and sulfate on the polluted days promoted the generation of OS in PM2.5 aerosols.
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  • 收稿日期:  2017-05-22
  • 刊出日期:  2018-01-15
邹明汐, 周易, 谢玲玲, 李梦琪, 杜金戈, 李黎. 成都市温江区PM2.5中有机和无机含硫化合物的分布特征[J]. 环境化学, 2018, 37(1): 130-137. doi: 10.7524/j.issn.0254-6108.2017052206
引用本文: 邹明汐, 周易, 谢玲玲, 李梦琪, 杜金戈, 李黎. 成都市温江区PM2.5中有机和无机含硫化合物的分布特征[J]. 环境化学, 2018, 37(1): 130-137. doi: 10.7524/j.issn.0254-6108.2017052206
shu
ZOU Mingxi, ZHOU Yi, XIE Lingling, LI Mengqi, DU Jin, LI Li. Distribution of organic and inorganic sulfur compounds in PM2.5 aerosols in Wenjiang District, Chengdu[J]. Environmental Chemistry, 2018, 37(1): 130-137. doi: 10.7524/j.issn.0254-6108.2017052206
Citation: ZOU Mingxi, ZHOU Yi, XIE Lingling, LI Mengqi, DU Jin, LI Li. Distribution of organic and inorganic sulfur compounds in PM2.5 aerosols in Wenjiang District, Chengdu[J]. Environmental Chemistry, 2018, 37(1): 130-137. doi: 10.7524/j.issn.0254-6108.2017052206
shu

成都市温江区PM2.5中有机和无机含硫化合物的分布特征

  • 1. 四川省农村环境保护工程中心,四川农业大学环境学院, 成都, 611130
  • 收稿日期:  2017-05-22
基金项目:

清华大学大气复合污染来源与控制实验室2015开放基金（110001122），生态文明（温江）研究中心科研项目（ECWY2017001）和四川农业大学大学生科研兴趣培养计划（20150136）资助.

摘要: 本研究在四川农业大学成都校区设立采样点，分别于春、夏、秋、冬的四季代表时间段采集PM2.5样品.在实验室应用电感耦合等离子体原子发射光谱仪（inductively coupled plasma-atomic emission spectroscopy，ICP-AES）测定样本中硫的总量；同时，利用离子色谱测定细粒子中硫酸盐的含量，探讨大气PM2.5中含硫化合物的季节变化，气象因子以及污染天气对含硫化合物的影响.研究表明，大气细颗粒中总硫、有机硫、硫酸根的年浓度值分别为5.41±3.61、1.46±1.54、11.85±7.23 μg·m-3.有机硫占总硫的比值春季为15.6%±10.2%，夏季为27.1%±14.0%，秋季为27.5%±21.7%，冬季为22.4%±13.3%.有机硫占总硫的平均比值夏、秋两季略高于春、冬两季，说明温暖的气候有利于气溶胶中硫酸盐转化为有机硫.冬季污染天气下有机硫/总硫的比值为28.2%±12.4%，明显高于非污染天气下有机硫/总硫的平均比值14.2%±10.9%.硫酸盐和有机物在大气颗粒物中的汇聚，有机和无机污染物浓度同时增多，可促使PM2.5中有机硫化合物的形成.

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