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首页> 外文期刊>Journal of the air & waste management association >Dicarboxylic acids and related compounds in fine particulate matter aerosols in Huangshi, central China
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Dicarboxylic acids and related compounds in fine particulate matter aerosols in Huangshi, central China

机译：中国中部黄石市细颗粒物气溶胶中的二羧酸和相关化合物

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PM2.5 (particulate matter with an aerodynamic diameter 2.5 mu m) samples were collected in Huangshi, central China, from March 2012 to February 2013 and were analyzed for dicarboxylic acids (diacids) and related compounds (DARCs). Oxalic acid (C-2; 416 ng m(-3)) was the most abundant species, followed by phthalic (Ph; 122 ng m(-3)), terephthalic (tPh; 116 ng m(-3)), succinic (C-4; 70.4 ng m(-3)), azelaic (C-9; 67.9 ng m(-3)), and adipic (C-6; 57.8 ng m(-3)) acids. Relatively high abundances of Ph and tPh differed from the distribution in urban and marine aerosols, indicating contributions from nearby anthropogenic sources. Glyoxylic acid (omega C-2; 41.4 ng m(-3)) was the dominant oxoacid, followed by 9-oxononanoic (omega C-9; 40.8 ng m(-3)) and pyruvic (Pyr; 24.1 ng m(-3)) acids. Glyoxal (Gly; 35.5 ng m(-3)) was the dominant alpha-dicarbonyl. Highest average concentrations were found for C-2, omega C-2, and C-9 in autumn, for C-4, for Pyr and C-6 in spring, for Ph, omega C-9, and Gly in summer, whereas the lowest values were observed in winter. Seasonal variations and correlation coefficients of DARCs demonstrate that both primary emissions and secondary production are important sources. Principal component analysis of selected DARCs species suggests that a mixing of air masses from anthropogenic and biogenic sources contribute to the Huangshi aerosols. Implications: Both primary emissions and secondary production are important sources of diacids and related compounds in PM2.5 from Huangshi, central China. Principal component analysis of selected diacids in Huangshi aerosols suggests that mixing of air masses from anthropogenic and biogenic sources contribute to ambient aerosols in central China.
机译：2012年3月至2013年2月在中国中部黄石市采集了PM2.5（空气动力学直径小于2.5微米的颗粒物）样品，并分析了二羧酸（二酸）和相关化合物（DARC）。草酸（C-2; 416 ng m（-3））是最丰富的物种，其次是邻苯二甲酸（Ph; 122 ng m（-3）），对苯二甲酸（tPh; 116 ng m（-3）），琥珀酸（C-4; 70.4 ng m（-3）），壬二酸（C-9; 67.9 ng m（-3））和己二酸（C-6; 57.8 ng m（-3））酸。 Ph和tPh的相对较高的丰度不同于城市和海洋气溶胶的分布，表明附近的人为来源做出了贡献。乙醛酸（omega C-2; 41.4 ng m（-3））是主要的含氧酸，其次是9-氧代壬酸（omega C-9; 40.8 ng m（-3））和丙酮酸（Pyr; 24.1 ng m（- 3））酸。乙二醛（Gly; 35.5 ng m（-3））是主要的α-二羰基。秋季的C-2，ωC-2和C-9，春季的C-4，Pyr和C-6，夏季的Ph，ωC-9和Gly的平均浓度最高。最低的是冬季。 DARC的季节变化和相关系数表明，初级排放和次级生产都是重要的来源。选定的DARC物种的主成分分析表明，来自人为和生物来源的空气质量混合导致了黄石气溶胶。含义：一次排放和二次生产都是来自中国中部黄石市PM2.5中二酸和相关化合物的重要来源。对黄石气溶胶中选定的二元酸的主成分分析表明，人为和生物源气团的混合导致了中国中部的环境气溶胶。

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    Liu Hongxia; Kawamura Kimitaka; Kunwar Bhagawati; Cao Junji; Zhang Jiaquan; Zhan Changlin; Zheng Jingru; Yao Ruizhen; Liu Ting; Xiao Wensheng;

  • 作者单位

    Hubei Polytech Univ, Sch Environm Sci & Engn, Hubei Key Lab Mine Environm Pollut Control & Reme, Huangshi, Hubei, Peoples R China|Hokkaido Univ, Inst Low Temp Sci, Sapporo, Hokkaido, Japan;

    Hokkaido Univ, Inst Low Temp Sci, Sapporo, Hokkaido, Japan|Chubu Univ, Chubu Inst Adv Studies, Kasugai, Aichi, Japan;

    Hokkaido Univ, Inst Low Temp Sci, Sapporo, Hokkaido, Japan|Chubu Univ, Chubu Inst Adv Studies, Kasugai, Aichi, Japan;

    Chinese Acad Sci, Inst Earth Environm, Key Lab Aerosol Chem & Phys, Xian, Shaanxi, Peoples R China;

    Hubei Polytech Univ, Sch Environm Sci & Engn, Hubei Key Lab Mine Environm Pollut Control & Reme, Huangshi, Hubei, Peoples R China;

    Hubei Polytech Univ, Sch Environm Sci & Engn, Hubei Key Lab Mine Environm Pollut Control & Reme, Huangshi, Hubei, Peoples R China;

    Hubei Polytech Univ, Sch Environm Sci & Engn, Hubei Key Lab Mine Environm Pollut Control & Reme, Huangshi, Hubei, Peoples R China;

    Hubei Polytech Univ, Sch Environm Sci & Engn, Hubei Key Lab Mine Environm Pollut Control & Reme, Huangshi, Hubei, Peoples R China;

    Hubei Polytech Univ, Sch Environm Sci & Engn, Hubei Key Lab Mine Environm Pollut Control & Reme, Huangshi, Hubei, Peoples R China;

    Hubei Polytech Univ, Sch Environm Sci & Engn, Hubei Key Lab Mine Environm Pollut Control & Reme, Huangshi, Hubei, Peoples R China;

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