广州城区土壤重金属的形态分布-分析化学专业论文.docxVIP

主些查兰堡主兰垡堡奎The 主些查兰堡主兰垡堡奎 The Chemical Speciation of Heavy Metals of the City Zone Soil in Guangzhou M砌or：Analytical Chemistry Name：Lu Su_ping Supervisor：．Associate Professor Zengfeng Abstract The pollution problem of heavy metal is a important field of environment science research in the soil now．The city zone soil is emphasis component of cffy ecosystem． Because of population convergence，developed industry and crowded traffic,people movement consumingly impacts environment．Now more and more people care for the heavy metal pollution in the city zone soil．The heavy metal of different chemical species has diverse environment behavior and biology function，therefore，it is very significant that the pollution degree，the potential zoology harm degree，the information of the content and chemical species of the heavy metal of the city zone soil are evaluated． In this test，Superficial soil samples were collected from twenty‘four different locations in the different function areas(the resident living area，kaleyard，the entertainment and tour area，the traffic tnmk，eomlllerco and industry area)in Guangzhou city zone(ineluding Tianhe，Dongshan，Yuexiu,Liwan，Fangeun，Haizhu， Huangpu and Baiyun)．Five different solutions including exchangeable、bound to carbonates、bound to Fc-Mn oxides、bound to organic matter sulphides、and residual,were gained after Tessier Sequential extraction of metals．The contents and distrbutions of the metals elements(Cd，Co，Cr、Cu、Mn，Ni、Pb and Zn)in the soils of Guangzhou city zone were researched．The distTbution character and the poHufion II 中山大学硕士学位论文source 中山大学硕士学位论文 source of the metals elements(Cd、Co、Cr、Cu、Mn、Ni、Pb and zⅡ、were discussed． And the pollution influence of the metals elements(Cd、Co，Cr、Cu，Mn，Ni，Pb and zn)in the soils of Guangzhou city zone were elementary estimated． The results indicated that Cd、Co、Cr、Ni、Pb and Zn in the soils of Guangzhou city zone were dominated by the residual fxaction；Cu were dominated by the residual and bound to organic matter