海口市售6种海洋贝类中多氯联苯(PCBs)含量及其潜在致癌风险评价

doi:10.11934/j.issn.1673-4831.2018.12.005

生态与农村环境学报 ›› 2018, Vol. 34 ›› Issue (12): 1091-1095.doi: 10.11934/j.issn.1673-4831.2018.12.005

海口市售6种海洋贝类中多氯联苯(PCBs)含量及其潜在致癌风险评价

肖春霖, 严峰

海南大学海洋学院/南海海洋资源利用国家重点实验室/热带生物资源教育部重点实验室/海南省热带水生生物技术重点实验室, 海南海口 570228

收稿日期:2018-06-04 出版日期:2018-12-25 发布日期:2018-12-25
通讯作者: 严峰,E-mail:yanfeng@hainu.edu.cn E-mail:yanfeng@hainu.edu.cn
作者简介:肖春霖(1990-),女,湖南邵阳人,硕士生,研究方向为海洋生物资源保护与开发利用。E-mail:694257977@qq.com
基金资助:
天津大学-海南大学自主创新基金（HDTDU201800）

Concentrations and Potential Cancer Risks of Indicator Polychlorinated Biphenyls (PCBs) in Molluscs From Market of Haikou City

XIAO Chun-lin, YAN Feng

College of Marine Science/State Key Laboratory of Marine Resource Utilization in South China Sea/Key Laboratory of Tropical Biological Resources of Ministry of Education/Hainan Provincial Key Laboratory for Tropical Hydrobiology and Biotechnology, Hainan University, Haikou 570228, China

Received:2018-06-04 Online:2018-12-25 Published:2018-12-25

摘要/Abstract

摘要：

运用气相色谱-质谱仪（GC-MS）测定海口市售6种贝类中7种指示性多氯联苯（PCBs）含量，评价其污染水平和致癌风险。结果表明，7种指示性PCBs在海口市售海洋贝类中的含量为17.51~47.43 ng·g^-1（以干重计），平均含量为32.78 ng·g^-1。贝类中指示性PCBs的组成以中、低氯代PCBs为主（三氯-PCBs、四氯-PCBs和五氯-PCBs），其中四氯-PCBs占总PCBs的38.49%。与我国其他相关研究相比，海口市售海洋贝类中PCBs的总含量处于中等水平。成人通过贝类摄入途径暴露指示性PCBs对消费者的5%、50%以及95%致癌风险均小于美国环保局（USEPA）推荐的可接受风险水平，表明海口市售海洋贝类中指示性PCBs对成人消费者的致癌风险处于可接受风险水平。

关键词: 贝类, 多氯联苯(PCBs), 污染水平, 致癌风险

Abstract:

Polychlorinated biphenyls (PCBs) in molluscs may pose a potential threat to consumer health, but research is currently limited. In order to explore the threat of PCBs to consumer health in marine molluscs, GC-MS was used to determine the content of 7 kinds of indicator PCBs in 6 kinds of molluscs sold in Haikou, the pollution level was evaluated and the carcinogenic risk to consumers was assessed. The results showed that the content of seven indicator PCBs in marine molluscs sold in Haikou was 17.51-47.43 ng·g^-1 (dry weight), and the average content was 32.78 ng·g^-1. The composition of indicator PCBs in molluscs was dominated by medium and low chlorinated PCBs (trichloro, tetrachloro and pentachloro-PCBs), of which tetrachloro-PCBs are the most important component of indicator PCBs in marine molluscs in Haikou. They accounts for 38.49% of the total PCBs. The total content of PCBs in marine molluscs sold in Haikou was much lower than the USA and China's limits, indicating that the pollution of PCBs in molluscs was at an acceptable level. Compared with other studies in China, the total content of PCBs in marine molluscs sold in Haikou was at a medium level. The 5%, 50%, and 95% carcinogenic risk of indicator PCBs in molluscs sold in Haikou through the molluscs intake for adult consumers were less than the threshold value of the US Environmental Protection Agency, indicating that the carcinogenic risk of indicator PCBs in marine molluscs sold in Haikou was at an acceptable level for adult consumers.

Key words: marine molluscs, polychlorinated biphenyls (PCBs), pollution levels, cancer risks

中图分类号:

肖春霖, 严峰. 海口市售6种海洋贝类中多氯联苯(PCBs)含量及其潜在致癌风险评价[J]. 生态与农村环境学报, 2018, 34(12): 1091-1095.

XIAO Chun-lin, YAN Feng. Concentrations and Potential Cancer Risks of Indicator Polychlorinated Biphenyls (PCBs) in Molluscs From Market of Haikou City[J]. Journal of Ecology and Rural Environment, 2018, 34(12): 1091-1095.

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海口市售6种海洋贝类中多氯联苯(PCBs)含量及其潜在致癌风险评价

Concentrations and Potential Cancer Risks of Indicator Polychlorinated Biphenyls (PCBs) in Molluscs From Market of Haikou City

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