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Heavy Metals Contamination Assessment in Soil and Products of Zoumadai Quanzhou

Abstract

泉州走马埭农田保护区,是福建省一个重要的粮食蔬菜生产基地。本研究验证了微波消解在重金属分析上的可靠性,通过ICP-MS及AFS测定走马埭地区土壤中重金属(Cr,Ni,Cu,Zn,Cd,Pb,As和Hg)的含量,结合土壤的基础性质与地理环境分析了含量特征与空间分布情况。重金属总体含量水平符合福建闽南地区(厦门-漳州)背景值,主要受到成土母质等地球化学特征的深刻影响。但Cd、Pb与Zn受道路交通以及农业耕作的综合影响,含量较背景值有增加趋势。走马埭主要的农产品大多数符合我国粮食与无公害蔬菜的要求。重金属在土壤-植物体系中的迁移能力:Cd>Zn>Cu>Ni>Cr>Hg>As>Pb。根系发达的作物,如...Zoumadai dependency farmland in Quanzhou is one of the important rice and vegetable procreative bases. Our study validates the reliability of microwave-digest applied to analysis of heavy metal, by ICP-MS and AFS we determine the content of heavy metal (Cr,Ni,Cu,Zn,Cd,Pb,As and Hg) in the soil around the Zoumadai area and figure out the concentration and distribution characteristics combining with...学位:理学硕士院系专业:海洋与环境学院海洋学系_海洋化学学号:20022700

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