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  1. The heavy metal detection rate in the grain and vegetables are stated respectively as following : Arsenic : none , none ; Chrome : 8 % , 72.4 % ; Lead : 6 % , 13 % ;

    重金属在粮食和蔬菜中的检出率分别是:砷:未检出、未检出,铬:8%、72.4%铅字6%、13%,镉:未检出、未检出,汞:未检出、未检出。