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南昌市秋季PM2.5中多环芳烃的污染特征、风险评价及来源分析

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赵阳, 林晓辉, 胡恭任, 于瑞莲. 南昌市秋季PM2.5中多环芳烃的污染特征、风险评价及来源分析[J]. 环境化学, 2016, 35(3): 500-507. doi: 10.7524/j.issn.0254-6108.2016.03.2015101002
引用本文: 赵阳, 林晓辉, 胡恭任, 于瑞莲. 南昌市秋季PM2.5中多环芳烃的污染特征、风险评价及来源分析[J]. 环境化学, 2016, 35(3): 500-507. doi: 10.7524/j.issn.0254-6108.2016.03.2015101002
shu
ZHAO Yang, LIN Xiaohui, HU Gongren, YU Ruilian. Pollution characteristics, risk assessment and source analysis of polycyclic aromatic hydrocarbons in PM2.5 collected in autumn in Nanchang City[J]. Environmental Chemistry, 2016, 35(3): 500-507. doi: 10.7524/j.issn.0254-6108.2016.03.2015101002
Citation: ZHAO Yang, LIN Xiaohui, HU Gongren, YU Ruilian. Pollution characteristics, risk assessment and source analysis of polycyclic aromatic hydrocarbons in PM2.5 collected in autumn in Nanchang City[J]. Environmental Chemistry, 2016, 35(3): 500-507. doi: 10.7524/j.issn.0254-6108.2016.03.2015101002
shu

南昌市秋季PM2.5中多环芳烃的污染特征、风险评价及来源分析

  • 1.

    华侨大学化工学院, 厦门, 361021;

  • 2.

    南昌市环保局, 南昌, 330038

  • 基金项目:

    国家自然科学基金(21377042,21477042)和福建省自然科学基金(2014J01159)资助.

Pollution characteristics, risk assessment and source analysis of polycyclic aromatic hydrocarbons in PM2.5 collected in autumn in Nanchang City

  • 1.

    College of Chemical Engineering, Huaqiao University, Xiamen, 361021, China;

  • 2.

    Environmental Protection Agency of Nanchang City, Nanchang, 330038, China

  • Fund Project: Supported by the National Natural Science Foundation of China (21377042,21477042) and Natural Science Foundation of Fujian province(2014J01159).

  • 摘要: 用气相色谱-质谱法(GC-MS)定量分析了2013年9月南昌市PM2.5中16种优控多环芳烃(PAHs)含量.结果表明,PAHs总浓度平均值为17.95 ng·m-3,变化范围为3.55-39.97 ng·m-3.不同环数多环芳烃占总浓度比例由大到小依次为:5环(50.45%)> 4环(19.32%)> 6环(17.99%)> 2环(6.34%)> 3环(5.90%),表现出明显的机动车尾气排放特征.通过计算PAHs的苯并[a]芘(BaP)毒性当量浓度(9.458-14.454 ng·m-3),表明南昌市PAHs对人体健康存在潜在危害.特征化合物比值法和主成分分析法结果表明,燃煤、机动车尾气、农业燃烧及少量的石油挥发是南昌市PM2.5中PAHs的主要污染源.
    Abstract: Sixteen polycyclic aromatic hydrocarbons (PAHs) in PM2.5 samples collected from Nanchang City in September 2013 were collected by gas chromatography-mass spectrometer (GC-MS). The average concentration of total PAHs was 17.95 ng·m-3, with a range of 3.55-39.97 ng·m-3. The percentages of different ring PAHs to the total PAHs concentration followed the descending order:5-ring (50.45%)> 4-ring (19.32%)> 6-ring (17.99%)> 2-ring (6.34%)> 3-ring (5.90%), which showed significant characteristics of vehicle exhaust emission. The risk of PAHs was calculated by Benzo[a]pyrene (BaP) equivalent (9.458-14.454 ng·m-3), indicating PAHs had potential hazardous effects on human health in Nanch ang city. Diagnostics ratios and principal component analysis (PCA) indicated that coal combustion, vehicle exhaust, agricultural burning and small amount of petroleum volatilization were the major sources of PAHs in PM2.5 in Nanchang City.
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  • 收稿日期:  2015-10-10
  • 刊出日期:  2016-03-15
赵阳, 林晓辉, 胡恭任, 于瑞莲. 南昌市秋季PM2.5中多环芳烃的污染特征、风险评价及来源分析[J]. 环境化学, 2016, 35(3): 500-507. doi: 10.7524/j.issn.0254-6108.2016.03.2015101002
引用本文: 赵阳, 林晓辉, 胡恭任, 于瑞莲. 南昌市秋季PM2.5中多环芳烃的污染特征、风险评价及来源分析[J]. 环境化学, 2016, 35(3): 500-507. doi: 10.7524/j.issn.0254-6108.2016.03.2015101002
shu
ZHAO Yang, LIN Xiaohui, HU Gongren, YU Ruilian. Pollution characteristics, risk assessment and source analysis of polycyclic aromatic hydrocarbons in PM2.5 collected in autumn in Nanchang City[J]. Environmental Chemistry, 2016, 35(3): 500-507. doi: 10.7524/j.issn.0254-6108.2016.03.2015101002
Citation: ZHAO Yang, LIN Xiaohui, HU Gongren, YU Ruilian. Pollution characteristics, risk assessment and source analysis of polycyclic aromatic hydrocarbons in PM2.5 collected in autumn in Nanchang City[J]. Environmental Chemistry, 2016, 35(3): 500-507. doi: 10.7524/j.issn.0254-6108.2016.03.2015101002
shu

南昌市秋季PM2.5中多环芳烃的污染特征、风险评价及来源分析

  • 1.  华侨大学化工学院, 厦门, 361021;
  • 2.  南昌市环保局, 南昌, 330038
  • 收稿日期:  2015-10-10
基金项目:

国家自然科学基金(21377042,21477042)和福建省自然科学基金(2014J01159)资助.

摘要: 用气相色谱-质谱法(GC-MS)定量分析了2013年9月南昌市PM2.5中16种优控多环芳烃(PAHs)含量.结果表明,PAHs总浓度平均值为17.95 ng·m-3,变化范围为3.55-39.97 ng·m-3.不同环数多环芳烃占总浓度比例由大到小依次为:5环(50.45%)> 4环(19.32%)> 6环(17.99%)> 2环(6.34%)> 3环(5.90%),表现出明显的机动车尾气排放特征.通过计算PAHs的苯并[a]芘(BaP)毒性当量浓度(9.458-14.454 ng·m-3),表明南昌市PAHs对人体健康存在潜在危害.特征化合物比值法和主成分分析法结果表明,燃煤、机动车尾气、农业燃烧及少量的石油挥发是南昌市PM2.5中PAHs的主要污染源.

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