Institute of Hydrobiology, Jinan University, Huangpu Street 601, Guangzhou 510632, PR China.
Environ Pollut. 2013 Nov;182:28-36. doi: 10.1016/j.envpol.2013.06.044. Epub 2013 Jul 25.
Four sediment cores were collected to investigate geochemical sources and to assess enrichment and pollution of metals in sediments from Shantou Bay, an area experiencing rapid economic development on the Southeastern Coast of China. The results indicated that the concentrations of the majority of metals showed a decrease with depth, with overall maximum values in the top layers, and that different sampling locations in the Bay received slightly different types of inputs. Three major sources were identified by correlation analysis and principal component analysis: river inputs, metropolitan, and port facilities discharge. Calculation of a pollution load index revealed overall low values, but the enrichment factor values for Pb and Cd were typically high for all cores. The mean concentrations of Cu, Pb, Zn and to some extent Cd exceeded the Effects-Range-Low values in the majority of the cases, indicating that there were possible ecotoxicological risks to organisms in Shantou Bay.
四个沉积物岩芯被采集以研究地球化学的来源，并评估在中国东南沿海经济快速发展的汕头湾沉积物中金属的富集和污染情况。结果表明，大多数金属的浓度随着深度的增加而降低，在表层达到最大值，而湾内不同的采样点则受到略微不同类型的输入。通过相关分析和主成分分析，确定了三个主要来源：河流输入、都市和港口设施排放。污染负荷指数的计算显示总体值较低，但对于所有岩芯，Pb 和 Cd 的富集因子值通常较高。Cu、Pb、Zn 的平均浓度在大多数情况下都超过了效应范围低值，这表明汕头湾的生物体可能存在生态毒理学风险。
