Xu Gang, Liu Jian, Pei Shaofeng, Kong Xianghuai, Hu Gang
Key Laboratory of Marine Hydrocarbon Resources and Environment Geology, Ministry of Land and Resources, Qingdao 266071, China; Qingdao Institute of Marine Geology, Qingdao 266071, China.
Key Laboratory of Marine Hydrocarbon Resources and Environment Geology, Ministry of Land and Resources, Qingdao 266071, China; Qingdao Institute of Marine Geology, Qingdao 266071, China.
Mar Pollut Bull. 2014 Jun 15;83(1):275-81. doi: 10.1016/j.marpolbul.2014.03.041. Epub 2014 Apr 22.
Samples of surface sediment and vibrocore were collected in the near-shore area of north Jiangsu Province for grain size, elements, (210)Pbexcess and (137)Cs analyses. In our study area, the diversity of metal concentration was controlled not by the grain size, but by the source. The element content of the old Yellow River Delta was used as baseline for our study area. Geoaccumulation indexes indicate that no station was polluted by Cu, Pb, Zn and As, but the Igeo values of As were close to zero in some stations. Slight pollution caused by Cd was observed in some stations. Correlation and enrichment factors suggest that Cu, Pb and Zn are lithogenic in origin, while As and Cd are mixed in origin. Especially, in some polluted stations Cd was obviously anthropogenic in origin.
在江苏省北部近岸区域采集了表层沉积物和振动柱状样，用于粒度、元素、过剩（210）铅和（137）铯分析。在我们的研究区域，金属浓度的差异不是由粒度控制的，而是由来源控制的。老黄河三角洲的元素含量被用作我们研究区域的基线。地累积指数表明，没有站点受到铜、铅、锌和砷的污染，但在一些站点砷的地累积指数值接近零。在一些站点观察到镉造成的轻微污染。相关性和富集因子表明，铜、铅和锌起源于成岩作用，而砷和镉起源于混合作用。特别是，在一些受污染的站点，镉明显起源于人为活动。
