| In order to study the influence of traffic on the surface soil alongside, concentration of polycyclic aromatic hydrocarbons (PAHs) in surface soil along the Hutai Road, north Shanghai, were analyzed. It was showed that the total concentrations of 16 PAHs (PAH16) varied from 0.260 mg/kg to 7.607 mg/kg, with average of 2.750 mg/kg, which is evidently higher than the average concentration(1.173 mg/kg) in general field soil in the same district, Baoshan District. Based on the relative abundances of PAHs different in ring number and the ratios of Phe /Ant and Fla /Pyr, it was found that the PAHs in surface soil along the Hutai Road were mainly sourced from combustion of fuel in auto engines. The result indicated that the traffic could bring PAHs contamination on the surface soil, and it was necessary adopting some efficient measures to prevent and control the contamination. |
