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向梅, 卞志和, 谢婧倩. 北太平洋海域多溴二苯醚污染特征及风险评估[J]. 环境化学, 2020, (12): 3288-3298. doi: 10.7524/j.issn.0254-6108.2019090403
引用本文: 向梅, 卞志和, 谢婧倩. 北太平洋海域多溴二苯醚污染特征及风险评估[J]. 环境化学, 2020, (12): 3288-3298. doi: 10.7524/j.issn.0254-6108.2019090403
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XIANG Mei, BIAN Zhihe, XIE Jingqian. Contamination characteristics and ecological risk assessment of polybrominated diphenyl ethers in the North Pacific Ocean[J]. Environmental Chemistry, 2020, (12): 3288-3298. doi: 10.7524/j.issn.0254-6108.2019090403
Citation: XIANG Mei, BIAN Zhihe, XIE Jingqian. Contamination characteristics and ecological risk assessment of polybrominated diphenyl ethers in the North Pacific Ocean[J]. Environmental Chemistry, 2020, (12): 3288-3298. doi: 10.7524/j.issn.0254-6108.2019090403
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北太平洋海域多溴二苯醚污染特征及风险评估

  • 1. 上海海洋大学海洋生态与环境学院, 上海, 201306;

  • 2. 中国科学院广州地球化学研究所有机地球化学国家重点实验室, 广州, 510640

    • 通讯作者: 谢婧倩, E-mail: jqxie@shou.edu.cn
  • 基金项目:

    国家自然科学基金（41806126）和中国博士后基金（2019M653101）资助.

Contamination characteristics and ecological risk assessment of polybrominated diphenyl ethers in the North Pacific Ocean

  • 1. College of Marine Ecology and Environment, Shanghai Ocean University, Shanghai, 201306, China;

  • 2. State Key Laboratory of Organic Geochemistry, Guangzhou Institute of Geochemistry Chinese Academy of Sciences, Guangzhou, 510640, China

    • Corresponding author: XIE Jingqian, jqxie@shou.edu.cn
  • Fund Project: Supported by the National Natural Science Foundation of China (41806126) and China Postdoctoral Science Foundation (2019M653101).

  • 摘要: 多溴二苯醚（PBDEs）是一类全球性的持久性有毒有机污染物，其带来的环境问题受到极大关注.海洋作为这类污染物的汇之一，已成为热点研究对象.然而，目前关于北太平洋海域PBDEs的研究仍集中在几块区域，缺少大范围的污染数据报道，且对该海域污染生态和健康风险评估的工作尚未开展.本文利用已有北太平洋及其沿岸30个国家和海域大气、水体、沉积物及生物体内4种环境介质PBDEs的报道信息，建立用以评估北太PBDEs污染分布特征的浓度-距离线性模型，并进一步预测北太最大渔场（北海道渔场）4种环境介质中PBDEs污染浓度，分别为4.6—9 pg·m-3（大气）、106—341 pg·L-1（水体）、3.4—248 ng·g-1干重（沉积物）和5—64.7 ng·g-1脂重（生物）；根据风险商值法、呼吸吸入暴露模型和致癌、非致癌风险评估法对研究区内4种环境介质中PBDEs的风险水平进行评估.结果显示，莱州湾水体、珠江口和南海沉积物存在低生态风险（0.01 < RQ < 0.1），其他海域水体和沉积物均暂无风险；在研究区的大气和生物体中只有特定人群及区域存在风险，主要有婴幼儿通过呼吸暴露大气中的PBDEs、女性通过摄食旧金山湾、夏威夷等区域海产品存在潜在的致癌（10-6 < CRI < 10-4）风险.因此，应持续关注海域环境中PBDEs污染状况.
    Abstract: Polybrominated diphenyl ethers (PBDEs) are a class of global toxic organic pollutants, and their environmental problems are of great concern. The ocean becomes one of the sinks of such pollutants. However, current research on PBDEs in the North Pacific Sea is fragmented and work on ecological and health risk assessments has not yet been carried out. We obtained the concentration data of PBDEs in the atmosphere, water, sediments and biota of 30 countries and sea areas in the North Pacific Ocean,and established a concentration-distance linear model for evaluating the distribution characteristics of PBDEs. The linear analysis model predicts that the concentration of PBDEs in four environmental media in Hokkaido fishery might be divided into 4.6—9 pg·m-3 (atmosphere), 106—341 pg·L-1 (water), 3.4—248 ng·g-1 dry weight (sediment) and 5—64.7 ng·g-1 lipid weight (biota). The results showed that the water in Laizhou Bay and the sediments in Pearl River Estuary had low ecological risk (0.01
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  • 收稿日期:  2019-09-04

北太平洋海域多溴二苯醚污染特征及风险评估

    通讯作者: 谢婧倩, E-mail: jqxie@shou.edu.cn
  • 1. 上海海洋大学海洋生态与环境学院, 上海, 201306;
  • 2. 中国科学院广州地球化学研究所有机地球化学国家重点实验室, 广州, 510640
  • 收稿日期:  2019-09-04
基金项目:

国家自然科学基金（41806126）和中国博士后基金（2019M653101）资助.

摘要: 多溴二苯醚（PBDEs）是一类全球性的持久性有毒有机污染物，其带来的环境问题受到极大关注.海洋作为这类污染物的汇之一，已成为热点研究对象.然而，目前关于北太平洋海域PBDEs的研究仍集中在几块区域，缺少大范围的污染数据报道，且对该海域污染生态和健康风险评估的工作尚未开展.本文利用已有北太平洋及其沿岸30个国家和海域大气、水体、沉积物及生物体内4种环境介质PBDEs的报道信息，建立用以评估北太PBDEs污染分布特征的浓度-距离线性模型，并进一步预测北太最大渔场（北海道渔场）4种环境介质中PBDEs污染浓度，分别为4.6—9 pg·m-3（大气）、106—341 pg·L-1（水体）、3.4—248 ng·g-1干重（沉积物）和5—64.7 ng·g-1脂重（生物）；根据风险商值法、呼吸吸入暴露模型和致癌、非致癌风险评估法对研究区内4种环境介质中PBDEs的风险水平进行评估.结果显示，莱州湾水体、珠江口和南海沉积物存在低生态风险（0.01 < RQ < 0.1），其他海域水体和沉积物均暂无风险；在研究区的大气和生物体中只有特定人群及区域存在风险，主要有婴幼儿通过呼吸暴露大气中的PBDEs、女性通过摄食旧金山湾、夏威夷等区域海产品存在潜在的致癌（10-6 < CRI < 10-4）风险.因此，应持续关注海域环境中PBDEs污染状况.

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