Polycyclic aromatic hydrocarbons in PM2.5 in Guangzhou, southern China: spatiotemporal patterns and emission sources.

@article{Gao2012PolycyclicAH,
  title={Polycyclic aromatic hydrocarbons in PM2.5 in Guangzhou, southern China: spatiotemporal patterns and emission sources.},
  author={Bo Gao and Hai Guo and Xin Wang and Xiu-Ying Zhao and Zhen-Hao Ling and Zhou Zhang and Teng-Yu Liu},
  journal={Journal of hazardous materials},
  year={2012},
  volume={239-240},
  pages={78-87}
}
Fine particulate samples were simultaneously collected at six sites in Guangzhou in November-December 2009. Eighteen polycyclic aromatic hydrocarbons (PAHs) and tracers, i.e. hopanes, elemental carbon, picene and levoglucosan were measured. Three high level episodes were observed during the sampling period, likely due to accumulation effects. Back trajectory analysis revealed that the air masses for the three episodes were from eastern inland Pearl River Delta (PRD) region. There was no obvious… CONTINUE READING
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