Research of bioaccumulation of heave metals in different field crops

Objective To investigate the concentration,bioaccumulation of heave metals in different crops.Methods Nine heave metals(Pb,Cr,Cd,Hg,As,Cu,Zn,Mn and Ni) in crops and soils were determinated by furnace atomic absorption,and evaluating the bioaccumulation of crops.Results The concentrations of nine heave metals in different crops followed the order:cerealleaf vegetablesnon-leaf vegetables.The different corps had different bioaccumulation abilities on the same heave metal.The rate of bioaccumulation Pb,As,Hg,Cr,Zn,Mn,Ni:cerealleaf vegetablesnon-leaf vegetables;Cd:leaf vegetables cereal non-leaf vegetables;Cu:cereal non-leaf vegetables leaf vegetables.Conclusion The rate of bioaccumulation was different in different crop.