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新疆巩乃斯河水中微量重金属元素的特征分析
引用本文:李梅英,徐俊荣,刘志兴,史志文.新疆巩乃斯河水中微量重金属元素的特征分析[J].水资源保护,2009,25(5):44-48.
作者姓名:李梅英  徐俊荣  刘志兴  史志文
作者单位:1. 中国科学院新疆生态与地理研究所,新疆,乌鲁木齐,830011;中国科学院研究生院,北京,100049
2. 中国科学院新疆生态与地理研究所,新疆,乌鲁木齐,830011
摘    要:对河流中微量重金属元素含量和来源的鉴别是准确、有效控制和预防污染的基本前提。通过对巩乃斯河水样进行分析,初步探讨了河流重金属元素的含量及来源。结果表明:水体中重金属元素Pb、Cr、Cu、Fe等的含量因采样断面的不同而相差悬殊,所测重金属的含量都符合国家地表水环境质量标准中Ⅰ类水标准。通过主成分分析发现河流中金属元素分为2个主要来源:第一主成分为矿物岩石的自然风化、侵蚀过程及工农业排污,其贡献率为63.43%;第二主成分为河流沉积物中金属的迁移、转化,其贡献率为26.11%。其中Pb、Cr、Cu、Fe和Ni主要受第一主成分控制;Mn和Ni主要受第二主成分控制;Cd则是受第一主成分和第二主成分共同支配。

关 键 词:重金属  时空分布  特征分析  巩乃斯河  新疆
修稿时间:2009/9/28 0:00:00

Characteristic analysis of trace heavy metal elements of Kunes River
LI Mei-ying,XU Jun-rong,LIU Zhi-xing,SHI Zhi-wen.Characteristic analysis of trace heavy metal elements of Kunes River[J].Water Resources Protection,2009,25(5):44-48.
Authors:LI Mei-ying  XU Jun-rong  LIU Zhi-xing  SHI Zhi-wen
Affiliation:LI Mei-ying, XU Jun-rong, LIU Zhi-xing, SHI Zhi-wen (1. Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Chinese Academy of Science, Belling 100049, China)
Abstract:Content and source identification of heavy metals is the basic goal of true and effective prevention and control of pollution. By means of water sample analysis, the contents and possible sources of the heavy metal in the Kunes River were preliminarily probed. The results showed that the contents of Pb, Cr, Cu, Fe and other heavy metals differ greatly in different sampling reaches of the river. The contents of heavy metals all conformed to I water standard of the Surface Water Environment Quality Standard. Two principal components of heavy metals were found using principal component analysis (PCA). There were two sources: the first principal component was the natural disintegration and erosion of rocks, and the discharge from industry and agriculture, which all together accounted for 63.43% ; the second principal component was the migration and transformation of metals in the sediments, which accounted for 26.11%. And Pb, Cr, Cu, Fe and Ni were mainly controlled by the f'rrst principal component; Mn and Ni were mainly controlled by the second principal component; Cd was controlled by both of the two principal components.
Keywords:heavy metals  spatial and temporal distribution  characteristic analysis  Kunes River  Xinjiang
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