华东某铀矿区土壤中重金属镉含量特征及污染评价  

Cd Content and Contamination Assessment of Soil in Area of Uranium Mine,East China

作　　者：王一婷[1] 刘平辉[1,2] 张淑梅[1] 

机构地区：[1]东华理工大学地球科学学院,江西南昌330013 [2]核资源与环境教育部重点实验室(东华理工大学),江西南昌330013

出　　处：《安徽农业科学》2015年第34期15-17,共3页Journal of Anhui Agricultural Sciences

基　　金：国家自然科学基金项目(41261081);江西省研究生创新基金项目(YC2014-S323)

摘　　要：[目的]对华东某铀矿区土壤中重金属元素Cd含量进行评价研究。[方法]采用单因子污染指数法,对铀矿区土壤重金属镉污染程度进行评价。[结果]所采样品Cd含量范围为0.05-1.81 mg/kg,采矿区与尾矿坝区所采土壤样品污染程度较高;正在开采矿区位置上游土壤中Cd含量高于下游,采矿区沿运输路线所采样品含量偏高。单因子污染指数评价结果表明,整个采样区各区域土壤均受到重金属Cd不同程度的污染,对照区单因子污染指数评价结果最小。[结论]所采样品均受到不同程度的镉污染。各区域受污染程度大小依次为采矿区〉整个矿区〉尾矿坝〉含矿未采区〉对照区。[Objective]Cd contents in soil were studied in the area of a uranium mine,East China.[Method]The method of single factor pollution index was used to evaluate the soil heavy metal pollution of Cd in the uranium mine.[Result]The Cd contents of Cd in soil samples ranged from 0. 05 mg / kg to 1. 81 mg / kg. The Cd contents of the soil samples were at high pollution level in mining area and tailings dam. The Cd contents of soil samples were higher in upstream than those in downstream of deposit exploration area. The Cd contents of soil samples were high along the transport route. The single factor pollution evaluation results showed different levels of contamination in different parts of deposit exploration area. The single factor pollution index was minimal in control area.[Conclusion]All samples had varying degrees of cadmium pollution. The contamination results of the single factor pollution index showed deposit exploration area 〉whole mining area〉 tailings dam 〉not mining area 〉control area.

关 键 词：土壤 镉含量 污染评价 铀矿区 华东 

分 类 号：S158.4[农业科学—土壤学]