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Coupling relation between urbanization and ecological risk of PAHs on coastal terrestrial ecosystem around the Bohai and Yellow Sea

机译：渤海和黄海沿海陆地生态系统城市化与生态风险的耦合关系

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摘要

Urbanization, the ecological risks of polycyclic aromatic hydrocarbons (PAHs) to terrestrial ecosystems, and the complex relationship between them have drawn globally attention. In this paper, a comprehensive indicator system was calculated to illustrate the levels of urbanization in 20 coastal cities around the Bohai and Yellow Sea. The top three cities with high levels of urbanization were Tianjin Qingdao Dalian. The ecological risk of phenanthrene (Phe) was 52.0%; while the risk of fluoranthene (Flt) was 25.8%, and that of pyrene (Pyr), benzo[a]anthracene (Bap), fluorene (Flu), and naphthalene (Nap) were below 20% throughout the entire region. Risks were high in Dandong, Tianjin, Tangshan, Nantong, and Lianyungang and low in Weihai, Dongying, and Rizhao. The degree of coupling between urbanization and ecological risk of PAHs was above high (0.6) and more than 50% of the coordination degrees were slight unbalance [0.3, 0.5). Furthermore, redundancy analysis showed that the indicator aspects of industry, transportation, and population made great contribution to PAHs risk. Industry correlated to Low Molecular Weight (LMW) PAHs, while transportation correlated to High Molecular Weight (HMW) PAHs. To minimize risk, urbanization scale should be under acceptable level, or the structure of industry and transportation should be optimized. (C) 2020 Elsevier Ltd. All rights reserved.
机译：城市化，多环芳烃（PAHS）对陆地生态系统的生态风险，以及它们之间的复杂关系绘制了全球关注。本文计算了一个综合指标制度，以说明渤海和黄海周围20个沿海城市的城市化水平。城市化程度高的三个城市是天津>青岛>大连。菲的生态风险（PhE）为52.0％;虽然氟蒽（FLT）的风险为25.8％，而芘（PYR），苯并[a]蒽（BAP），芴（流感）和萘（NAP）在整个区域中低于20％。丹东，天津，唐山，南通和连云港和威海，东营和日照和日照州的风险高。城市化与PAHS的生态风险之间的耦合程度高于高（0.6），超过50％的配位减少不平衡[0.3,0.5）。此外，冗余分析表明，工业，运输和人口的指标方面对PAH的风险做出了巨大贡献。工业与低分子量（LMW）PAHs相关，同时运输与高分子量（HMW）PAHs相关。为了最大限度地减少风险，城市化规模应在可接受的水平下，或者工业和运输结构应优化。 （c）2020 elestvier有限公司保留所有权利。

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  • 来源
    《Environmental Pollution》 |2021年第2期|115680.1-115680.12|共12页
  • 作者

    Han Guoxiang; Shi Yajuan; Lu Yonglong; Liu Changfeng; Cui Haotian; Zhang Meng;

  • 作者单位

    Chinese Acad Sci Res Ctr Ecoenvironm Sci State Key Lab Urban & Reg Ecol Beijing 100085 Peoples R China|Univ Chinese Acad Sci Beijing 100049 Peoples R China;

    Chinese Acad Sci Res Ctr Ecoenvironm Sci State Key Lab Urban & Reg Ecol Beijing 100085 Peoples R China|Univ Chinese Acad Sci Beijing 100049 Peoples R China;

    Chinese Acad Sci Res Ctr Ecoenvironm Sci State Key Lab Urban & Reg Ecol Beijing 100085 Peoples R China|Univ Chinese Acad Sci Beijing 100049 Peoples R China;

    Chinese Acad Sci Res Ctr Ecoenvironm Sci State Key Lab Urban & Reg Ecol Beijing 100085 Peoples R China|Univ Chinese Acad Sci Beijing 100049 Peoples R China;

    Chinese Acad Sci Res Ctr Ecoenvironm Sci State Key Lab Urban & Reg Ecol Beijing 100085 Peoples R China|Univ Chinese Acad Sci Beijing 100049 Peoples R China;

    Chinese Acad Sci Res Ctr Ecoenvironm Sci State Key Lab Urban & Reg Ecol Beijing 100085 Peoples R China|Univ Chinese Acad Sci Beijing 100049 Peoples R China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Urbanization; Ecological risk assessment; Polycyclic aromatic hydrocarbons (PAHs); Coupling and coordination degree;

    机译：城市化;生态风险评估;多环芳烃（PAH）;耦合和协调程度;

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