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首页> 外文期刊>Human and ecological risk assessment >Heavy metals in surface sediments of lakes in Guangzhou public parks in China and their relations with anthropogenic activities and urbanization
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Heavy metals in surface sediments of lakes in Guangzhou public parks in China and their relations with anthropogenic activities and urbanization

机译：中国广州公园湖泊表层沉积物中的重金属及其与人为活动和城市化的关系

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摘要

This study aimed to investigate the pollution of heavy metals in the sediments of park lakes in Guangzhou, which is a large city with rapid urbanization, industrialization, and dense population in South China. Thirty-two surface sediment samples were collected from seven lakes in different districts of this city. The concentrations and distributions of Cr, Ni, Cu, Zn, Cd, and Pb were measured to assess the level of enrichment and toxicity in the sediments. The enrichment factor showed that Pb and Zn showed severe enrichment in all lakes except for the Dafu Shan Forest Park (DFS), and the geo-accumulation index (Igeo) showed that all lakes were polluted with Cu, Pb, Cd, Ni, and Zn in different levels. The results of risk assessment indicated that the DFS located in the suburbs represented moderate risks; however, other lakes in the city central represented high or very high risks. Moreover, Cd had the primary contribution to the risk of the sediments' environment in urban lakes. Multivariate statistical analyses are carried out to explore the correlativity between heavy metals and human development indices. This study indicated that the levels of heavy metals' contamination and ecological risk of urban lakes in Guangzhou have a close relationship with anthropogenic activities.
机译：本研究旨在调查广州公园湖泊沉积物中重金属的污染。广州是中国南方城市化，工业化快速发展的大城市。从该市不同地区的七个湖泊收集了32个地表沉积物样本。测量了Cr，Ni，Cu，Zn，Cd和Pb的浓度和分布，以评估沉积物中的富集和毒性水平。富集因子表明，除大富山森林公园（DFS）外，所有湖泊中的铅和锌均显示出严重的富集，地质累积指数（Igeo）表明，所有湖泊均受到铜，铅，镉，镍和铜的污染。锌含量不同。风险评估结果表明，位于郊区的DFS代表中等风险。但是，城市中心的其他湖泊风险很高或很高。此外，镉是造成城市湖泊沉积物环境风险的主要因素。进行多变量统计分析以探索重金属与人类发展指数之间的相关性。这项研究表明，广州城市湖泊的重金属污染水平和生态风险与人为活动密切相关。

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  • 来源
    《Human and ecological risk assessment》 |2017年第8期|2002-2016|共15页
  • 作者

    Shang Shengtan; Zhong Wei; Wei Zhiqiang; Zhu Chan; Ye Susu; Tang Xiaowen; Chen Yu; Tian Lixue; Chen Bin;

  • 作者单位

    South China Normal Univ, Sch Geog, Guangzhou 510631, Guangdong, Peoples R China;

    South China Normal Univ, Sch Geog, Guangzhou 510631, Guangdong, Peoples R China;

    South China Normal Univ, Sch Geog, Guangzhou 510631, Guangdong, Peoples R China;

    South China Normal Univ, Sch Geog, Guangzhou 510631, Guangdong, Peoples R China;

    South China Normal Univ, Sch Geog, Guangzhou 510631, Guangdong, Peoples R China;

    South China Normal Univ, Sch Geog, Guangzhou 510631, Guangdong, Peoples R China;

    South China Normal Univ, Sch Geog, Guangzhou 510631, Guangdong, Peoples R China;

    South China Normal Univ, Sch Geog, Guangzhou 510631, Guangdong, Peoples R China;

    South China Normal Univ, Sch Geog, Guangzhou 510631, Guangdong, Peoples R China;

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

    heavy metal; lake sediments; anthropogenic activities; Guangzhou;

    机译：重金属;湖泊沉积物;人为活动;广州;

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