Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
6357391 | Marine Pollution Bulletin | 2015 | 8 Pages |
Abstract
Heavy metal concentrations and physicochemical parameters in seawater were measured in Guangdong coastal waters, South China. Results showed that the concentrations and distribution of heavy metals varied spatially and seasonally. Generally, heavy metal concentrations in the east regions were higher than in the west. Concentrations of Pb, Zn, Cd and Cr in wet seasons were generally higher than in dry seasons owing to the seasonal differences of the river discharge, rainfall and seawater intrusion. Principal component (PC) analysis showed that PC1, PC2 and PC3 in the east were correlated to Pb + Cr + Zn + Cd, As + Cd and Cu, respectively, and they were correlated to Pb + Cr, Zn + Cu + Cd and As + Cu, respectively, in the west. That was maybe due to the differences of local heavy metal sources. The anthropogenic activities contributed more to the main sources of heavy metals, and contamination factors indicated that Zn and Pb pollution was serious in study area.
Keywords
Related Topics
Physical Sciences and Engineering
Earth and Planetary Sciences
Oceanography
Authors
Ling Zhang, Zhen Shi, JingPing Zhang, Zhijian Jiang, Fei Wang, Xiaoping Huang,