FORM DISTRIBUTION OF Zn, Cd, Pb AND Cu IN WATERS OF THE NORTHWEST BOHAI GULF

The forms distribution of Zn, Cd, Pb and Cu in waters of the Northwest Bohai Gulf is investigated by inverse polarography of anti-adsorption physically coated mercury film electrode, the higher content of most forms of trace metals is in polluted estuary water, and unstable Zn and Pb are in anomalous distribution. The average concentrations read ΣZn 20.0μg/l (14.5-36.6 μg/l, ΣCd 0.11μg/l (0.080-0.14μg/l), ΣPb 1.0μg/l (0.58-1.6 μg/l), and ΣCu 5.2μg/l) (2.37-8.43 μg/l) respectively.