为了全面了解在哈尔滨道路环境样品中的多环芳烃（PAHs）的发生、来源及对人体健康的影响，对道路灰尘、绿化带土壤和停车场灰尘样品中的32种PAHs的浓度进行了定量分析。总PAHs浓度在道路灰尘和绿化带土壤中分别为0.95至40.7 μg/g和0.39至43.9 μg/g，并且主要由高分子量PAHs（HMW-PAHs）组成。尽管干道上的PAHs含量更高，但PAHs的组成轮廓几乎不受道路类型的影响。对于停车场灰尘来说，总PAHs浓度的范围为0.81至190 μg/g，并且三环至五环的PAHs产生了最大的贡献。与地面停车场（平均：6.12 μg/g）相比，地下停车场检测到更高的总PAHs浓度（平均：33.1 μg/g）。PAHs的诊断比率显示，石油、石油燃烧和生物质/煤燃烧是样品中PAHs的主要来源。此外，根据增量寿命癌症风险模型，成人和儿童的三种样品的癌症风险均超过了阈值（10-6）。总体而言，这项研究表明，哈尔滨道路环境中的PAHs对当地居民具有一定的健康影响。

To obtain a comprehensive understanding about that occurrence, sources, and effects on human health of polycyclic aromatic hydrocarbons (PAHs) in road environmental samples from Harbin, concentrations of 32 PAHs in road dust, green belt soil, and parking lot dust samples were quantified. The total PAH concentrations ranged from 0.95 to 40.7 μg/g and 0.39 to 43.9 μg/g in road dust and green belt soil, respectively, and were dominated by high molecular weight PAHs (HMW-PAHs). Despite the content of PAHs in arterial roads being higher, the composition profile of PAHs was hardly influenced by road types. For parking lot dust, the range of total PAH concentrations was 0.81-190 μg/g, and three-ring to five-ring PAHs produced the maximum contribution. Compared with surface parking lots (mean: 6.12 μg/g), higher total PAH concentrations were detected in underground parking lots (mean: 33.1 μg/g). The diagnostic ratios of PAHs showed that petroleum, petroleum combustion, and biomass/coal combustion were major sources of PAHs in the samples. Furthermore, according to the Incremental Lifetime Cancer Risk model, the cancer risks of three kinds of samples for adults and children were above the threshold (10-6). Overall, this study demonstrated that PAHs in the road environment of Harbin have a certain health impact on local citizens.