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首页> 美国卫生研究院文献>International Journal of Environmental Research and Public Health >Characteristics of PM2.5-Bound Polycyclic Aromatic Hydrocarbons and Nitro-Polycyclic Aromatic Hydrocarbons at A Roadside Air Pollution Monitoring Station in Kanazawa Japan
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Characteristics of PM2.5-Bound Polycyclic Aromatic Hydrocarbons and Nitro-Polycyclic Aromatic Hydrocarbons at A Roadside Air Pollution Monitoring Station in Kanazawa Japan

机译：日本金泽市路边空气污染监测站中与PM2.5结合的多环芳烃和硝基多环芳烃的特征

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Polycyclic aromatic hydrocarbons (PAHs) and nitro-PAHs (NPAHs) in PM samples were collected at a roadside monitoring station in Kanazawa, Japan, in every season from 2017 to 2018. Nine PAHs and five NPAHs were determined using high-performance liquid chromatography with fluorescence detection and chemiluminescence detection, respectively. The mean concentrations of PAHs and NPAHs were highest in winter and lowest in summer. Fluoranthene and pyrene were the dominant PAHs and 1-nitropyrene was the dominant NPAH in all seasons, and these compounds were mainly emitted by diesel vehicles. The concentration ratio of benzo( )pyrene (BaP) to benzo( )perylene (BgPe) ((BaP)/(BgPe)) and of indeno(1,2,3- )pyrene (IDP) to the sum of IDP and benzo( )perylene (BgPe) ((IDP)/((IDP)+(BgPe0) might still be useful indicators for identifying traffic emission sources today. Moreover, our results showed that the carcinogenic risk in all seasons was below the acceptable limit set by the WHO.
机译：从2017年至2018年的每个季节，在日本金泽市的路边监测站采集PM样品中的多环芳烃（PAHs）和硝基PAHs（NPAHs）。使用高效液相色谱仪和荧光检测和化学发光检测。 PAH和NPAH的平均浓度在冬季最高，在夏季最低。在所有季节中，荧蒽和pyr是主要的PAHs，1-硝基was是主要的NPAH，这些化合物主要由柴油车辆排放。苯并（）to（BaP）与苯并（per）（BgPe）（（BaP）/（BgPe））和茚并（1,2,3-）（（IDP）的浓度比对IDP和苯并（）per（BgPe）（（IDP）/（（IDP）+（BgPe0））可能仍然是当今识别交通排放源的有用指标，而且我们的结果表明，所有季节的致癌风险均低于WHO。

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