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Table 5 Maximum allowable concentrations of some heavy metals in soil and vegetable tissues (leafy vegetables)

From: Plant growth stage influences heavy metal accumulation in leafy vegetables of garden cress and sweet basil

 CdPbAsNiCrCoZnCuMn
In plant (mg kg−1 DW)254.3155515050150
In soil (mg kg−1)3100205010050300120400