title: Heavy metal pollution and Pb isotopic tracing in the intertidal surface sediments of Quanzhou Bay, southeast coast of China.
abstract: Concentrations of 16 heavy metals and Pb isotopic ratios in the intertidal surface sediments of Quanzhou Bay were determined to study the pollution level of heavy metals and the sources of Pb. The results showed that most concentrations of Cd, Sn, Mn, Cu, Zn, Cr, Pb, Hg, Ni, Co, Cs, Fe and V were higher than the background values, while most concentrations of Ti, Sb and Sr were lower than the background values. The mean concentrations of Cu, Zn, Pb, Cr and Cd exceeded the first-grade criteria of Chinese marine sediment quality. The geo-accumulation indexes revealed that the sediments had been polluted by some heavy metals. The results of Pb isotopic tracing indicated that the total Pb in the sediments were mainly from parent material, industrial emission and vehicle exhaust with the mean contributions of 38.2%, 51.3% and 10.5%, respectively, calculated by a three-end-member model of Pb isotopic ratios.
authors: Department of Environmental Science and Engineering, Huaqiao University, Xiamen, China.
authors: Ruilian
authors: R
authors: Yu
authors: Department of Environmental Science and Engineering, Huaqiao University, Xiamen, China.
authors: Weifang
authors: W
authors: Zhang
authors: Department of Environmental Science and Engineering, Huaqiao University, Xiamen, China; State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang, china.
authors: Gongren
authors: G
authors: Hu
authors: Department of Environmental Science and Engineering, Huaqiao University, Xiamen, China.
authors: Chengqi
authors: C
authors: Lin
authors: Department of Environmental Science and Engineering, Huaqiao University, Xiamen, China.
authors: Qiuli
authors: Q
authors: Yang
mesh_terms: D061006:Bays / Q000737:chemistry; D002681:China; D004784:Environmental Monitoring; D019015:Geologic Sediments / Q000737:chemistry; D007854:Lead / Q000032:analysis; D008628:Mercury; D019216:Metals, Heavy / Q000032:analysis*; D014874:Water Pollutants, Chemical / Q000032:analysis*
chemical_list: D019216:Metals, Heavy; D014874:Water Pollutants, Chemical; D007854:Lead; D008628:Mercury
keywords: Heavy metal; Pb isotopic tracing; Pollution evaluation; Quanzhou Bay; Surface sediment