选冶矿厂周边农田中几种农作物的重金属污染状况

来源 :安徽农业科学 | 被引量 : 0次 | 上传用户:ZHAO289868538ZHAO
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对云南某矿区选厂、冶炼厂周边农田中几种农作物及其根际土壤重金属含量进行了研究.结果表明,矿区周边农田中农作物根际土壤中除Cr元素外,Pb、Cd和Zn元素含量严重超过国家土壤二级标准,污染指数分别为1.28~6.79、40.83~377.6和2.71~25.03;矿区甘蔗食用部分Pb、Cr和Zn的含量分别超标11.6、18.7和99.78倍,青菜食用部分Pb、C r和Zn含量分别超标7.75、1.8和64.3倍,豌豆食用部分Pb和Zn分别超标1和45.44倍.
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