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    于志刚, 杨月莲, 刘仲, 杨晓倩, 刘岚铮, 崔亮亮. 2014-2017年济南市两区大气PM2.5中多环芳烃变化趋势研究[J]. 环境卫生学杂志, 2018, 8(6): 453-457. DOI: 10.13421/j.cnki.hjwsxzz.2018.06.002
    引用本文: 于志刚, 杨月莲, 刘仲, 杨晓倩, 刘岚铮, 崔亮亮. 2014-2017年济南市两区大气PM2.5中多环芳烃变化趋势研究[J]. 环境卫生学杂志, 2018, 8(6): 453-457. DOI: 10.13421/j.cnki.hjwsxzz.2018.06.002
    shu
    YU Zhigang, YANG Yuelian, LIU Zhong, YANG Xiaoqian, LIU Lanzheng, CUI Liangliang. Trend of Polycyclic Aromatic Hydrocarbons in Atmospheric PM2.5 in Two Districts of Ji'nan from 2014 to 2017[J]. Journal of Environmental Hygiene, 2018, 8(6): 453-457. DOI: 10.13421/j.cnki.hjwsxzz.2018.06.002
    Citation: YU Zhigang, YANG Yuelian, LIU Zhong, YANG Xiaoqian, LIU Lanzheng, CUI Liangliang. Trend of Polycyclic Aromatic Hydrocarbons in Atmospheric PM2.5 in Two Districts of Ji'nan from 2014 to 2017[J]. Journal of Environmental Hygiene, 2018, 8(6): 453-457. DOI: 10.13421/j.cnki.hjwsxzz.2018.06.002
    shu

    2014-2017年济南市两区大气PM2.5中多环芳烃变化趋势研究

    Trend of Polycyclic Aromatic Hydrocarbons in Atmospheric PM2.5 in Two Districts of Ji'nan from 2014 to 2017

      摘要
    • 摘要:
      目的 研究分析济南市两区2014-2017年大气PM2.5中多环芳烃（PAHs）的变化趋势。
      方法 于2014-2017年在济南市历城区（污染区）和市中区（对照区）和采集PM2.5有效样品738份，用超高效液相色谱仪测定样品中PAHs浓度，以分析区域间、不同时间及季节间的变化趋势。
      结果 济南市两区呈明显的季节性变化规律，即冬季>秋季>春季>夏季。济南市大气中PAHs以4环以上的组分为主，占总量的90%以上。历城区（污染区）PAHs污染水平明显高于市中区（对照区），两区之间PAHs污染水平差异有统计学意义（U=58 041.0，P < 0.05）。燃煤和机动车排放是PAHs的主要来源。
      结论 济南市两区大气中PAHs浓度呈下降趋势，但总体效果仍然不容乐观。

       

      Abstract:
      Objectives To study and analyze the trend of polycyclic aromatic hydrocarbons (PAHs) in atmospheric PM2.5 in 2014-2017 in two districts of Ji'nan.
      Methods A total of 738 effective PM2.5 samples were collected in 2014-2017 from Licheng district (polluted area) and Shizhong district (control area) in Jinan. PAHs were examined by ultra-high performance liquid chromatography. Interregional time and seasonal variation in PAHs were analyzed.
      Results The seasonal variation of average PAHs concentration in Ji'nan was obvious (winter > autumn > spring > summer). Most components of PAHs in the atmosphere of Ji'nan were more than 4 rings accounting for more than 90% of the total. The pollution level of PAHs in Licheng district (polluted area) was significantly higher than that in Shizhong district (control area). (U=58 041.0, P < 0.05). Coal combustion and motor vehicle emission were the main source of PAHs pollution in two districts in Ji'nan.
      Conclusions The concentration of PAHs in the atmosphere has been decreasing year after year in two districts in Ji'nan, but the overall effectiveness was still not optimistic.

       

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