The Only Source of Cu Content from River Flow in Jiaozhou Bay

Abstract

In August and October, 1991, the variation of Cu content in Jiaozhou Bay was 0.13-0.67μg/L, satisfying the Case I Sea Water Quality Standard. It showed that the water was not polluted by Cu content. Cu content was only transported by the river flow, specifically, 0.64μg/L from Haibo River, 0.59μg/L from Licun River and 0.67μg/L from Loushan River. The three rivers were not polluted by Cu content. The Cu content emitted by human was in the order of Loushan River, Haibo River and Licun River from high to low. However, the Cu contents in the three rivers were far less than 5.00μg/L, showing that the land was not polluted by Cu. Transported by different river flows, the Cu contents reaching the ocean were basically consistent, with a variation of 0.08μg/L. Further, the modelling diagram was established to display the transport path of Cu content to land, atmosphere and ocean in a quantitative way.