PARTITIONING OF LEAD, ZINC AND CADMIUM IN SURFACE SEDIMENTS FROM JINZHOU BAY
锦州湾表层沉积物中铅、锌、镉在各地球化学相间的分配规律

The fractionation f lead,zinc and cadmium in sediments from Jinzhou Bay and the translocation of the metals among different fractions in the polluted surface water and sea water mixing area were investigated. A majority of the metals were found to be bound to the non-residual fractions among which Fe-Mn oxides was the most important one. The ratio of metal contents in the nonresidual phase to that in the residual phase in sediments from near shore area closed to pollution sources was correlated to the ratio of the metal concentration in wastewater to that in the sludge. It was also noticed that the metal partitioning between Fe-Mn oxides and carbonates was mainly controlled by EH and pH conditions of the aquatic environment.