摘要
基于对湘潭锰矿红旗矿区土-水界面重金属污染流的采样分析,通过相关性和主成分分析法,研究了锰矿区土-水界面重金属污染流中的锰、镍、铜、锌、镉、铅重金属的来源以及同源性。结果表明:6种重金属的差异性、离散程度、变异性较大;锰—镍、锰—锌、锰—镉、锰—铅、镍—锌、铜—锌、铜—铅、锌—镉、锌—铅、铅—镉呈极显著正相关,镍与锰以外的其他重金属相关性都较低;3个主成分的贡献率分别为58.300%、16.628%、11.115%,累积贡献率达到了81.543%,并且6种重金属在主成分1的载荷非常高。结合矿区的周边环境和自身特点,表明6种重金属的主要共同来源为矿区内的矿业活动,并且工业活动、交通运输、农业活动等也对矿区造成了一定程度的重金属污染。
Based on the sampling analysis of contaminated flow from soil-water interfaces in red flag mining area of Xiangtan manganese ore,the source and homology of Mn,Ni,Cu,Zn,Cd,Pb have been researched by using correlation and principal component analysis.There are some differences in dispersion and variability between those heavy metals.Significantly positive correlation is present in Mn-Ni,Mn-Zn,Mn-Cd,Mn-Pb,Ni-Zn,Cu-Zn,Cu-Pb,Zn-Cd,Zn-Pb,Pb-Cd but correlation between Ni and other heavy metals are low except Mn and Zn.Results of the principal component analysis showed that the top three component contribution rate are 58.300 %,16.628 %,11.115 %,and the total contribution rate is 81.543%.Besides,the load of the six kinds of heavy metals in the first principal component is very high.The common source of the metals is from mining activities,and industrial activities,transportation,agricultural activities have also caused a certain degree of heavy metal pollution in combination of the surrounding environment and its own characteristics in the mining area.
出处
《环境污染与防治》
CAS
CSCD
北大核心
2014年第12期6-10,共5页
Environmental Pollution & Control
基金
国家自然科学基金资助项目(No.51174090)
湖南省自然科学基金资助项目(No.12JJ8007)
关键词
土-水界面流
重金属
相关分析
主成分分析
soil-water interface flow
heavy metals
correlation analysis
principal component analysis
