Chemical forms of heavy metals in agricultural landscape water

A procedure for determining the chemical forms of zinc, cadmium, lead and copper in surface and ground waters located in Agricultural Landscape Park (ALP) is outlined. Heavy metals were differentiated into ionic, labile forms and moreover on stable complexes and chelates. In the studied waters, concentrations of ionic forms were 17.9-45.2 μgZn/l, 0.003-0.038 μgCd/l, 0.28-6.29 μgPb/I. Labile complexes in these waters constituted: 3.8-24.1% for Zn, 25.9-35.8% for Cd and 24.3-57.8% for Pb of the total metal concentration. Copper concentration in studied melioration ditch amounted to 24.4 μg/l. The ionic and colloidal forms constituted 39.1% and 24.8% of its total concentration, respectively.