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首页> 外文期刊>Journal of Hazardous Materials >Spatial, sources and risk assessment of heavy metal contamination of urban soils in typical regions of Shenyang, China
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Spatial, sources and risk assessment of heavy metal contamination of urban soils in typical regions of Shenyang, China

机译：沉阳典型地区城市土壤重金属污染的空间，来源和风险评估

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摘要

Surface soil samples from 36 sampling sites including different functional areas in seven districts of Shenyang, China were collected and analyzed. The results showed that the average concentrations of Cd, Cu, Pb and Zn in soil of Shenyang were up to 0.42, 51.26, 75.29 and 140.02 mg/kg, respectively, which are much higher than their natural background values. Among the functional areas and administrative regions, the industrial regions and the Tiexi District displayed the highest metal concentrations. Pearson's correlation analysis showed that there existed close correlations among Cd, Cu, Pb and Zn (except for Cd-Cu) at 1% level. Principal Component Analysis (PCA) coupled with correlation between heavy metals revealed that heavy metal contamination might originate from traffic and industrial activities. The values of pollution index (PI) and integrated pollution index (IPI) indicated that metal pollution level was Pb>Cd>Zn>Cu, and Cd, Cu, Pb and Zn belong to moderate or high pollution level. Potential ecological risk indexes (Ri) further indicated that Shenyang was suffering from serious metal contamination. These results are important for the development of proper management strategies to decrease non-point source pollution by various remediation practices in Shenyang, China.
机译：收集并分析了来自中国沉阳七个地区不同功能区的36个采样点的地表土壤样品。结果表明，沉阳土壤中Cd，Cu，Pb和Zn的平均浓度分别高达0.42、51.26、75.29和140.02 mg / kg，远高于其自然本底值。在功能区和行政区中，工业区和铁西区的金属含量最高。皮尔逊相关分析表明，Cd，Cu，Pb和Zn（Cd-Cu除外）在1％的水平之间存在密切的相关性。主成分分析（PCA）与重金属之间的相关性揭示，重金属污染可能源自交通和工业活动。污染指数（PI）和综合污染指数（IPI）的值表明金属污染水平为Pb> Cd> Zn> Cu，Cd，Cu，Pb和Zn属于中度或高污染水平。潜在的生态风险指数（Ri）进一步表明，沉阳市正遭受严重的金属污染。这些结果对于制定适当的管理策略以通过中国沉阳市的各种补救措施减少面源污染至关重要。

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  • 来源
    《Journal of Hazardous Materials》 |2010年第3期|455-462|共8页
  • 作者

    Yuebing Sun; Qixing Zhou; Xiaokui Xie; Rui Liu;

  • 作者单位

    Key Laboratory of Terrestrial Ecological Process, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, China Graduate School of the Chinese Academy of Sciences, Beijing 100049, China;

    Key Laboratory of Terrestrial Ecological Process, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, China Key Laboratory of Pollution Process and Environmental Criteria (Ministry of Education), College of Environmental Science and Engineering, Nankai University, Tianjin 300071, China;

    Key Laboratory of Terrestrial Ecological Process, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, China Graduate School of the Chinese Academy of Sciences, Beijing 100049, China;

    Key Laboratory of Terrestrial Ecological Process, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, 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

    heavy metal contamination; spatial pattern; functional area; administrative region; risk assessment;

    机译：重金属污染;空间格局功能区域;行政区域风险评估;

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