...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of environmental science and health >Distribution of perfluorinated alkyl substances in marine shellfish along the Chinese Bohai Sea coast
【24h】

Distribution of perfluorinated alkyl substances in marine shellfish along the Chinese Bohai Sea coast

机译：渤海沿海海洋贝类全氟烷基物质的分布

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Perfluorinated alkyl substances (PFASs) are emerging persistent organic pollutants, which pose a threat to human health primarily by dietary exposure, especially through seafood. Bohai Sea (a semi-closed sea located north of China) is an important shellfish aquaculture area that is possibly highly-polluted with PFASs. In this study, we first evaluated contamination by PFASs in a total of 230 samples of marine shellfish from the Bohai Sea. Samples included five important shellfish species, collected from important aquaculture spots distributed around the Bohai Sea. Samples were analyzed by an ultra-fast liquid chromatography-tandem mass spectrometry method, which could simultaneously detect 23 PFASs in shellfish. Our research verified that PFASs have become a threat to the safety of shellfish products in this area. Furthermore, contamination by PFASs in shellfish changed depending on the components of PFASs, the species of shellfish, and the sampling sites. Many of the 23 target compounds contributed to the high detection ratio (50%) as follows: perfluorooctanoic acid (PFOA) perfluorononanoic acid perfluorodecanesulfonic acid perfluorooctanesulfonic acid (PFOS). Compared with other dominant components, PFOA not only had the highest detection percentage in shellfish samples (98.3%), but its detection level contributed to 87.2% of total PFASs concentrations, indicating that PFOA is the major threat to the safety of shellfish products. The highest level of PFAS was found in clams (62.5 ng g(-1) wet weight of PFOA). The concentration of total PFAS in different shellfish species showed the following trend: clams mussels scallops whelks oysters. The maximum concentration of total PFAS or PFOA was found in Shouguang. The total concentration of PFOS and its precursor were highest in Cangzhou, possibly due to local industrial activities. The results presented in this paper provide new data on the contamination of marine shellfish along the Bohai Sea coasts in China, and constitute a reference for future monitoring of contamination by emerging contaminants in Bohai coast.
机译：全氟烷基物质（PFAS）是不断出现的持久性有机污染物，主要通过饮食摄入（尤其是通过海鲜）对人类健康构成威胁。渤海（位于中国北部的半封闭海域）是重要的贝类水产养殖区，可能受到PFAS的高度污染。在这项研究中，我们首先评估了PFAS对来自渤海的总共230个海洋贝类样品的污染。样本包括五种重要的贝类物种，这些物种是从分布在渤海附近的重要水产养殖场采集的。通过超快速液相色谱-串联质谱法对样品进行分析，该方法可同时检测贝类中的23种PFAS。我们的研究证明，PFAS已成为该地区贝类产品安全的威胁。此外，贝类中全氟辛烷磺酸对污染物的污染取决于全氟辛烷磺酸的组成，贝类的种类和采样地点。 23种目标化合物中的许多对高检测率（> 50％）的贡献如下：全氟辛酸（PFOA）>全氟壬酸>全氟癸烷磺酸>全氟辛烷磺酸（PFOS）。与其他主要成分相比，全氟辛烷磺酸不仅在贝类样品中检出率最高（98.3％），而且其检出水平占全氟辛烷磺酸总浓度的87.2％，这表明全氟辛烷磺酸是对贝类产品安全性的主要威胁。在蛤中发现了PFAS的最高含量（PFOA的湿重为62.5 ng g（-1））。不同种类贝类中全氟辛烷磺酸的浓度呈以下趋势：蛤>贻贝>扇贝>螺>牡蛎。寿光发现全氟辛烷磺酸或全氟辛烷磺酸的最高浓度。沧州全氟辛烷磺酸及其前体的总浓度最高，可能是由于当地的工业活动所致。本文提供的结果提供了有关中国渤海沿岸海洋贝类污染的新数据，并为将来监测渤海沿岸新兴污染物的污染提供了参考。

著录项

  • 来源
    《Journal of environmental science and health》 |2019年第6期|271-280|共10页
  • 作者

    Guo Mengmeng; Zheng Guanchao; Peng Jixing; Meng Di; Wu Haiyan; Tan Zhijun; Li Fengling; Zhai Yuxiu;

  • 作者单位

    Chinese Acad Fishery Sci, Yellow Sea Fisheries Res Inst, Qingdao 266071, Shandong, Peoples R China;

    Chinese Acad Fishery Sci, Yellow Sea Fisheries Res Inst, Qingdao 266071, Shandong, Peoples R China;

    Chinese Acad Fishery Sci, Yellow Sea Fisheries Res Inst, Qingdao 266071, Shandong, Peoples R China;

    Chinese Acad Fishery Sci, Key Lab Control Qual & Safety Aquat Prod, Minist Agr, Beijing, Peoples R China;

    Chinese Acad Fishery Sci, Yellow Sea Fisheries Res Inst, Qingdao 266071, Shandong, Peoples R China;

    Chinese Acad Fishery Sci, Yellow Sea Fisheries Res Inst, Qingdao 266071, Shandong, Peoples R China;

    Chinese Acad Fishery Sci, Yellow Sea Fisheries Res Inst, Qingdao 266071, Shandong, Peoples R China;

    Chinese Acad Fishery Sci, Yellow Sea Fisheries Res Inst, Qingdao 266071, Shandong, Peoples R China;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    China Bohai Sea coasts; marine shellfish; perfluorinated alkyl substances (PFASs); spatial distribution; species variation;

    机译：渤海沿海地区;海洋贝类;全氟烷基物质;空间分布;物种变异;

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号