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首页> 外文期刊>Human and ecological risk assessment >Relationship between historical changes of PBDEs, PAHs, and algal organic matter in sediments of Poyang Lake under climate warming
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Relationship between historical changes of PBDEs, PAHs, and algal organic matter in sediments of Poyang Lake under climate warming

机译：气候变暖下鄱阳湖沉积物历史变化与鄱阳湖沉积物历史变化的关系

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摘要

Polybrominated diphenyl ethers (PBDEs) and polycyclic aromatic hydrocarbons (PAHs) were detected by gas chromatography-mass spectrometry in the sediment core form Poyang Lake. The concentrations of sigma 17 PBDEs and sigma 15 PAHs ranged from 1.13 to 4.64 ng/g, and from 341 to 744 ng/g, respectively. The Rock-Eval test was conducted to obtain organic matter parameters such as total organic carbon (TOC), S2, and hydrogen index (HI). The value of TOC, S2, and HI showed an increasing trend from the bottom to the surface. Source analysis results showed that the source of PAHs was combustion. Moreover, the correlation analysis of PBDEs, PAHs, and annual average temperature with S2 and HI showed that BDE-202, BDE-201, BDE-183, and BDE-154 were negatively correlated with S2 and HI, while BDE-85 and BDE-47 were positively correlated. There was no significant correlations of PAHs with S2 and HI, which is related to the disturbance of sediments. It is interesting that significantly positive correlation of HI with five-year moving averages of the air temperature was demonstrated, demonstrating that the climate warming enhanced the increase of algae in the Poyang Lake.
机译：通过气相色谱 - 质谱法在沉积物核心形式鄱阳湖中的气相色谱 - 质谱法检测多溴二苯醚（PBDE）和多环芳族烃（PAH）。 Sigma17的浓度分别为1.13至4.64ng / g，分别为341至744ng / g。进行岩石 - 评估试验以获得有机物参数，例如总有机碳（TOC），S2和氢指数（HI）。 TOC，S2和HI的值显示从底部到表面的增加趋势。源分析结果表明，PAHS的来源是燃烧。此外，使用S2和HI的PBDE，PAH和年平均温度的相关分析表明BDE-202，BDE-201，BDE-183和BDE-154与S2和HI呈负相关，而BDE-85和BDE -47是正相关的。 PAHS与S2和HI没有显着相关性，这与沉积物的扰动有关。有趣的是，对气温的五年移动平均值显着正相关，展示了气候变暖，增强了鄱阳湖中藻类的增加。

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  • 来源
    《Human and ecological risk assessment》 |2020年第10期|2390-2406|共17页
  • 作者

    Wan Nannan; Zhuo Chenya; Qiao Lei; Gong Jian; Yang Yu; Ran Yong;

  • 作者单位

    Chinese Acad Sci Guangzhou Inst Geochem State Key Lab Organ Geochem Guangzhou Peoples R China|Chinese Acad Sci Guangzhou Inst Geochem Guangdong Prov Key Lab Environm Protect & Resourc Guangzhou Peoples R China|Univ Chinese Acad Sci Beijing Peoples R China;

    Chinese Acad Sci Guangzhou Inst Geochem State Key Lab Organ Geochem Guangzhou Peoples R China|Chinese Acad Sci Guangzhou Inst Geochem Guangdong Prov Key Lab Environm Protect & Resourc Guangzhou Peoples R China|Univ Chinese Acad Sci Beijing Peoples R China;

    Chinese Acad Sci Guangzhou Inst Geochem State Key Lab Organ Geochem Guangzhou Peoples R China|Chinese Acad Sci Guangzhou Inst Geochem Guangdong Prov Key Lab Environm Protect & Resourc Guangzhou Peoples R China|Univ Chinese Acad Sci Beijing Peoples R China;

    Guangzhou Univ Sch Environm Sci & Engn Guangdong Prov Key Lab Radionuclides Pollut Contr Guangzhou Peoples R China;

    Chinese Acad Sci Guangzhou Inst Geochem State Key Lab Organ Geochem Guangzhou Peoples R China|Chinese Acad Sci Guangzhou Inst Geochem Guangdong Prov Key Lab Environm Protect & Resourc Guangzhou Peoples R China;

    Chinese Acad Sci Guangzhou Inst Geochem State Key Lab Organ Geochem Guangzhou Peoples R China|Chinese Acad Sci Guangzhou Inst Geochem Guangdong Prov Key Lab Environm Protect & Resourc Guangzhou Peoples R China;

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

    Sediment core; algae organic matter; climate warming; Poyang Lake;

    机译：沉积物核心;藻类有机物;气候变暖;鄱阳湖;

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