THE ESTUARINE CHEMISTRY OF THE ZHUJIANG RIVER I. TRACE METAL SPECIES IN WATER PHASE

Nine chemical species of Zn, Cd, Pb and Cu in the Zhujiang River estuary were measured by using the technique of ion-exchange, ultraviolet irradiation and anodic stripping voltammetry. According to the distribution of the nine species in percentage an estuarine chemical pattern of the metal elements Zn, Cd, Pb and Cu in the Zhujiang River estuary was roughly made, and it is suggested that this estuary has relatively great self purifying ability in respect to heavy metal pollution.