| 摘要: |
| 分析了辽宁省4个典型城市淡水鱼类中多溴联苯醚（PBDEs）和六溴环十二烷（HBCDs）的富集特征，并进行了健康风险评估。结果表明：淡水鱼类体内PBDEs和HBCDs检出率均为100%，PBDEs和HBCDs的平均质量分数分别为9.73 和21.81 ng/g（脂重）。PBDEs中的单体BDE 183、BDE 209和BDE 153在辽河流域不同鱼类的同源种中占优势，分别占PBDEs的26.8%～40%，17%～44%和14%～22%。在HBCDs的3种同系物中，α-HBCD是主要的单体，其相对贡献率为45.15%~84.71%。辽河流域的工厂企业生产活动对淡水鱼类产生了影响，居民通过消费水产品摄入PBDEs和HBCDs。健康风险评估结果显示：PBDEs和HBCDs的健康风险指数均＜1，说明当地水产品中PBDEs和HBCDs的非致癌风险处于可接受水平。 |
| 关键词: 淡水鱼类 多溴联苯醚 六溴环十二烷 富集特征 健康风险 辽宁省 |
| DOI： |
| 分类号:X824 |
| 基金项目:国家水体污染控制与治理科技重大专项基金资助项目（No.2018ZX07601-002）；国家重点研发计划课题基金资助项目（No.2018YFC1801505） |
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| Bioacumulation Characteristics and Health Risks Assessment of Polybrominated Diphenyl Ethers and Hexabromocyclododecane in Freshwater Fish Tissues from Liaoning Province |
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LI Beiet al
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1.Jinzhou Medical University, Jinzhou, Liaoning 121001, China et al
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| Abstract: |
| The study analyzed the bioaccumulation characteristics and health risks of polybrominated diphenyl ethers (PBDEs) and hexabromocyclododecanes (HBCDs) in freshwater fish from 4 typical cities in Liaoning province. The results showed that the detection rate of PBDEs and HBCDs in freshwater fish was 100%. The average concentrations of ΣPBDEs and ΣHBCDs in tissues of freshwater fish were 9.73 ng/g lipid weight and 21.81 ng/g lipid weight, respectively. BDE-183, BDE-209 and BDE-153 were predominant among the PBDEs congeners in different fish species from Liaohe River Basin, accounting for 26.8%～40%, 17%～44% and 14%～22% of ΣPBDEs, respectively. α-HBCD was the main component of HBCDs, accounting for 45.15%～84.71% of ΣHBCDs for the different fish species from Liaohe River Basin. The findings showed that modern factories near the Liaohe River Basin have caused pollution to local freshwater fish species. The results of health risk assessment showed that hazard index exposure to PBDEs and HBCDs were less than 1, indicating that the non carcinogenic risks of PBDEs and HBCDs in aquatic products consumed by residents in the local area were low or negligible. |
| Key words: Freshwater fish Polybrominated diphenyl ether Hexabromocyclododecane Bioaccumulation characteristics Health risk |
