Gas-particle concentration and characterization of sources of PAHs in the atmosphere of a suburban area in Athens, Greece.
Gas-particle concentration and characterization of sources of PAHs in the atmosphere of a suburban area in Athens, Greece.
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DOI：
10.1016/j.jhazmat.2006.06.047
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发表时间：
2007-02
影响因子：
13.6
通讯作者：
Ch. Vasilakos;N. Levi;T. Maggos;J. Hatzianestis;J. Michopoulos;C. Helmis
中科院分区：
文献类型：
--
作者：
Ch. Vasilakos;N. Levi;T. Maggos;J. Hatzianestis;J. Michopoulos;C. Helmis
于2003年6月和11月在雅典郊区（阿加）的两个地方测定了大气多环芳烃（PAH）。在收集的样品中定量测定了14种多环芳烃。气相中的总浓度介于6.89和124 ngm −3之间，而颗粒相中的总浓度介于0.44和13.2 ngm −3之间。总多环芳烃（气相和颗粒相）的最大浓度在寒冷时期观察到，平均值为40.7ngm−3。多环芳烃与NO、NO2和O3、风速、风向和温度相关。多环芳烃与NO、NO2呈正相关，与O3呈负相关。最丰富的成员是菲、蒽、芴、荧蒽和芘。使用分子诊断比率对气溶胶中多环芳烃的潜在来源进行了调查，该比率反映了柴油和汽油发动机等来源，但燃煤和液化石油气等其他来源也有贡献。
Atmospheric polycyclic aromatic hydrocarbons (PAH) were determined in two places in a suburban area of Athens greater area (AGA) during June and November 2003. Fourteen PAHs were quantified in the collected samples. The total concentration in the gas phase ranged between 6.89 and 124ngm−3, while in the particulate phase between 0.44 and 13.2ngm−3. Maximum concentrations of the total PAHs (gas and particulate phase) were observed during the cold period with an average of 40.7ngm−3. PAHs were correlated with NO, NO2and O3, wind speed, wind direction and temperature. Positive correlation was observed between PAHs and NO, NO2, while negative correlation was detected between PAHs and O3. The most abundant members were phenanthrene, anthracene, fluorene, fluoranthene and pyrene. Potential sources of PAHs in aerosols were investigated using molecular diagnostic ratios, which reflect sources such as diesel and gasoline engines, although other sources such as coal combustion and liquefied petroleum gas also contributed.