中文摘要：

调查研究了环渤海地区养殖水产品中16种多环芳烃（polycychcaromatichydrocarbons，PAHs）的污染水平和残留特征，并评估样品中PAHs的健康风险，2014年夏、秋两季于环渤海采集104尾对虾、77只螃蟹以及53个贝类样品，采用高效液相色谱法分析样品可食组织中PAHs含量。本次调查发现，该区域养殖水产品中PAHs污染状况较为普遍，尤其是菲的平均含量及检出率最高，分别为6．53μg/kg和88．5％。比较而言，低环（2—3环）PAHs检出率要显著高于高环（4—6环）PAHs。本次调查还发现，PAHs污染表现出一定的生物相关性，游泳性的虾类和蟹类中优势PAHs组分均为3环结构，其主要来源是石油类污染；而底栖性贝类中优势组分则为4环PAHs，其来源较为复杂，这种差异可能与生物自身及其生活环境有关。虽然采用美国环境保护局（USEPA）的评估方法进行分析，结果表明环渤海地区通过摄食水产品途径暴露于PAHs的接触风险是可接受的，但由于PAHs的持久性和食物链放大作用，因此必须加以重点关注。

英文摘要：

To investigate the residues of 16 types of polycyclic aromatic hydrocarbons （PAHs）, in aquatic products from Bohai Bay, and evaluate their health risk, 104 prawns, 77 crabs and 53 shellfish were collected from Circum - Bohai -Sea region in the summer and fall, 2014. And the contents of 16 PAHs in edible tissues of samples were de- termined by HPLC. Results showed that all samples was commonly contaminated by PAHs, especially phenanthrene, which had the highest content （6.53 p,g/kg） and detection rate （88.5%） in samples. Relatively speaking, the low molecular weight （ 2 - 3 rings） PAHs had a higher detection rate than the high molecular weight （4 - 6 rings） PAHs. The results also showed that the residue of PAHs was positively correlated to sample species. Most of 3 - ring PAHs, mainly from petroleum, were found in swimming prawns and crabs. In contrast, 4 - ring PAHs, whose source was complicated, existed in benthic shellfishes as the predominant components. This difference may be depended on or- ganisms themselves and their living environment. Although the risk assessment of PAHs adopted US Environmental Protection Agency （USEPA） assessment methods, and concluded that PAHs exposure risk was acceptable via intaking aquatic products from Circum- Bohai -Sea region, it must be pay more attention due to PAHs persistence and food chain amplification.