A、B两污灌农田土壤重金属含量分析及污染评价  

ANALYSIS AND EVALUATION OF HEAVY METAL LEVEL IN IRRIGATION POLLUTED SOIL

作　　者：闫红[1] 高红霞[1] 刘英莉[1] 徐应军[1] 翟菲菲[1] 

机构地区：[1]河北省华北煤炭医学院,唐山063000

出　　处：《现代预防医学》2009年第6期1041-1043,1050,共4页Modern Preventive Medicine

摘　　要：[目的]通过对A、B两污灌农田土壤中重金属元素镉(Cd)、铬(Cr)、铜(Cd)、镍(Ni)、锌(Zn)、铅(Pb)含量调查与分析,评价其污染程度,了解其重金属污染现状。[方法]土壤样品经王水+HCLO4消化彻底后,采用电感耦合等离子体原子发射光谱法(ICP-AES)测定重金属含量,并采用重金属单项污染指数法和综合污染指数法对污染状况进行评价。[结果]A区域土壤的Cd、Cu、Pb、Zn含量超标;B区域土壤的Cd、Zn含量超标。[结论]A、B两区域土壤重金属污染均为重度污染(P﹥3),土壤受污染已相当严重。[Objective] To investigate and analyze the concentration of heavy metal in irrigation polluted soil, such as cadmium （Cd）, chromium （Cr）, copper （Cd）, nickel （Ni）, zinc （Zn）, and tile lead （Pb）, and evaluate the polluted level of irrigation soil so as to aware its polluted status. [ Methods] Soil samples were digested by the methods of aqua regia ＋ HCLO4, and coupling plasma atom emission spectroscopy （ICP-AES） was used to determine the level of heavy metal content, the single polluted index method for heavy metal and comprehensive polluted indexes were used to assess the pollution status of irrigation soil. [Flesults] The content levels of Cd, Cu, Pb, and Zn in sample A soil exceeded the allowed standard; the content levels of Cd and Zn in sample B soil exceeded the allowed standard. [Conclusion] The pollution levels of A and B areas were serious in term of the heavy metal （P 〉 3）.

关 键 词：污灌土壤 重金属 含量分析 污染评价 

分 类 号：R995[医药卫生—毒理学]