The Increasing Accumulation of Pb Content in Marine Waters

Abstract

Abstract Based on the investigation data of waters in Jiaozhou Bay in May, August and October, 1992, Pb content and horizontal distribution at surface waters in Jiaozhou Bay were studied in this paper. The results showed that the range of Pb content in Jiaozhou Bay was 3.87-37.90 μg/L corresponding to Class II, III and IV in accordance with Sea Water Quality Standard. It illustrated that in terms of Pb content in May, August and October, the entire waters in Jiaozhou Bay experienced low, medium and high pollution. The Pb content in Jiaozhou Bay was transported in four ways - ships and wharf, overland runoff, rivers and open ocean current, which was 16.34 μg/L, 14.85 μg/L, 13.25-37.90 μg/L and 13.25-37.53 μg/L respectively, shown in model diagrams. The transfer process of Pb content from the sources to the destinations was depicted in this paper to prove that Pb content causes pollution to the environment and ecology during temporal and spatial transfer.