中文关键词多环芳烃(PAHs)风险评价海洋生物河口海域昌化江 英文关键词polycyclic aromatic hydrocarbons (PAHs)human risk assessmentmarine organismsestuarine watersChanghua River

作者	单位	E-mail
汪慧娟	上海海洋大学水产与生命学院, 上海 201306 中国水产科学研究院南海水产研究所, 广东省渔业生态环境重点实验室, 广州 510300	huijuan_1209@163.com
旷泽行	上海海洋大学水产与生命学院, 上海 201306 中国水产科学研究院南海水产研究所, 广东省渔业生态环境重点实验室, 广州 510300
周贤	中国水产科学研究院南海水产研究所, 广东省渔业生态环境重点实验室, 广州 510300
覃晓青	中国水产科学研究院南海水产研究所, 广东省渔业生态环境重点实验室, 广州 510300
黄洪辉	中国水产科学研究院南海水产研究所, 广东省渔业生态环境重点实验室, 广州 510300	huanghh@scsfri.ac.cn

中文摘要 为了研究海南昌化江典型海岛型河口海域生物体多环芳烃（PAHs）的污染状况，应用气相色谱-质谱法（GC-MS）分析了33种海洋生物体内16种优先控制PAHs的含量，并探讨了PAHs组分、来源和潜在的食用风险.结果表明，底层鱼类（湿重，下同）、甲壳类和中上层鱼类生物体PAHs总量范围分别为5.52~787.98、12.18~154.64和10.20~199.79 ng·g^-1，平均含量分别为83.21、64.72和89.48 ng·g^-1.各类生物体中PAHs含量存在一定的差异，平均含量由高到低依次为：中上层鱼类、底层鱼类和甲壳类.与国内外其他地区相比，昌化江河口海域生物体PAHs污染处于中低水平.来源分析结果显示，33种海洋生物体中PAHs主要来源于燃烧源（石油燃烧和生物质燃烧）和石油源，且底层生物受到燃烧源影响较大，而中上层生物受到石油源影响较大.风险评价结果显示苯并[a]芘（BaP）含量处于欧盟规定的限值范围，昌化江河口海域大部分生物处于食用安全范围内，但长期食用这些海产品可能会有潜在的健康风险（1.0×10^-5≤ILCR<1.0×10^-4）. 英文摘要 To assess the contamination by polycyclic aromatic hydrocarbons (PAHs) in organisms in the estuary of Changhua River in Hainan, we determined the content of 16 priority PAHs by gas chromatography and mass spectrometry (GC-MS). The composition, source, and potential edible risk of PAHs were studied. The results showed that the total PAHs of demersal fish (wet weight, same below), crustaceans, and pelagic fish were 5.52-787.98, 12.18-154.64, and 10.20-199.79 ng·g^-1, respectively, and the average contents were 83.21, 64.72, and 89.48 ng·g^-1, respectively. There were some differences in the content of PAHs in various organisms. The average content followed the order of pelagic fish > demersal fish > crustaceans. Compared with other areas in the country and abroad, the content of marine organisms'PAHs in the estuary of the Changhua River was above the medium level. The result of isomer characteristic ratio showed that the PAHs of 33 organisms mainly came from the combustion sources (petroleum combustion and biomass combustion) and petroleum sources. Moreover, demersal fish were greatly affected by combustion sources, while pelagic fish were greatly affected by petroleum sources. Human risk assessment indicated that the content of benzopyrene (BaP) was within the limits set by the European Union. Most of the organisms in the estuary of Changhua River were within the safe range of consumption, but the long-term consumption of these seafoods may pose a potential health risk (1.0×10^-5≤ILCR<1.0×10^-4).

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