长江武汉段冲积土壤中重金属的环境地球化学特征
DOI:
作者:
作者单位:

作者简介:

通讯作者:

中图分类号:

基金项目:

国家自然科学基金项目(41171237)和国土资源大调查项目(121201010511103)


Environment Geochemistry of Heavy Metals in the Alluvial Soils of Yangtze River in Wuhan City
Author:
Affiliation:

Fund Project:

  • 摘要
  • |
  • 图/表
  • |
  • 访问统计
  • |
  • 参考文献
  • |
  • 相似文献
  • |
  • 引证文献
  • |
  • 资源附件
  • |
  • 文章评论
    摘要:

    本文对长江武汉段沿岸的冲积土壤中主要重金属元素(镉、铜、铅、镍、铬)的含量和形态进行了较系统地分析,同时,配套分析了部分蔬菜样品中的重金属含量,以便了解其元素环境地球化学特征。结果显示:研究区土壤样品中重金属镉含量超标。铅、铜、镍含量接近国家土壤环境质量标准二指标,其含量和活动性强的弱酸提取态分量随着采样点位置距离武汉钢铁厂越近而增大显示重金属的污染部分原因可能是工业生产造成的。铬含量较低,接近其背景值。研究区土壤中重金属元素在表层土壤中存在积累效应表现出表层高于对应深层的趋势,活动性强的弱酸提取态含量高,具有其潜在的危害。这些土壤中种植的蔬菜重金属元素镉、铅含量超标,而铜、镍、铬含量正常。

    Abstract:

    This paper studied the environment geochemistry of heavy metals in the alluvial soils of Yangtze River (Wuhan segment). The concentrations of heavy metals in alluvial soil of Yangtze River and corresponding vegetable samples collected from WuHan City were determined by AAS after microwave digested. It is showed that the soil was contaminated by Cadmium (Cd) with Cd contents significantly higher than the allowable value. Lead (Pb), copper (Cu) and nickel (Ni) contents in soil samples were not higher than the allowable values. Chromium(Cr) concentrations in soil samples were close its’ background values. The heavy metals pollution is probably caused partly by the production of Wuhan steel and iron company as the closer the sampling sites is to it the higher of heavy metal contents were. The concentrations of heavy metals in topsoil are greater than deeper soils. It is also showed that Cd and Pb contents in vegetables are greater than the allowable values. However, Cu, Ni and Cr contents are acceptable.

    参考文献
    相似文献
    引证文献
引用本文

杨帆,郝志红,张舜尧,刘华忠,王成文,凌其聪.2016.长江武汉段冲积土壤中重金属的环境地球化学特征[J].地质学报,90(8):1955-1964.
Yang Fan, Hao Zhihong, Zhang Shunyao, Liu Huazhong, Wang Chengwen, LIng Qicong.2016. Environment Geochemistry of Heavy Metals in the Alluvial Soils of Yangtze River in Wuhan City[J]. Acta Geologica Sinica,90(8):1955-1964.

复制
分享
文章指标
  • 点击次数:
  • 下载次数:
  • HTML阅读次数:
  • 引用次数:
历史
  • 收稿日期:2016-04-25
  • 最后修改日期:2016-04-25
  • 录用日期:2016-08-23
  • 在线发布日期: 2016-08-23
  • 出版日期: