文献类型：期刊文献

英文题名：Heavy metals of sediment cores in Dachan Bay and their responses to human activities

作者：Yang, Guohuan[1,2];Song, Zhiguang[1];Sun, Xingli[2];Chen, Chunliang[2];Ke, Sheng[2];Zhang, Jibiao[1]

机构：[1]Guangdong Ocean Univ, Coll Chem & Environm, Zhanjiang 524088, Peoples R China;[2]Guangdong Ocean Univ, Analyt & Testing Ctr, Zhanjiang 524088, Peoples R China

年份：2020

卷号：150

外文期刊名：MARINE POLLUTION BULLETIN

收录：SCI-EXPANDED(收录号：WOS:000509611200143)、、EI(收录号：20194907789853)、Scopus(收录号：2-s2.0-85075856639)、WOS

基金：This study was supported by the Talent Special Support Program of Guangdong Ocean University (no. 002026002004), the Program for Scientific Research Start-up Funds of Guangdong Ocean University (no.R17001), the First-class Special Funds of Guangdong Ocean University; and the Public Science and Technology Research Funds Projects of Ocean, State Oceanic Administration (no. 201505027-1).

语种：英文

外文关键词：Heavy metal; Profile variation; Risk evaluation; Source analysis; Sediment cores; Dachan Bay

外文摘要：The grain-size distributions and heavy metal content in two sediment cores from Dachan Bay were analyzed, and the vertical distribution, provenance, and ecological risk of heavy metal were evaluated. The concentrations (mu g g(-1)) of Cu, Pb, Zn, Cd, Cr, Hg, As, and Ni in the sediment samples were 14.8-408, 33.0-130, 78.6-256, 0.193-1.79, 47.5-192, 0.052-1.39, 8.94-25.2, and 26.0-89.6, respectively. Most heavy metal concentrations increased from the bottom to the upper layers. On the basis of two sediment cores, the potential ecological risk of heavy metals was determined to be low, and the degree of potential ecological harm of heavy metals was in the order of Hg > Cd > As > Cu > Pb > Cr > Zn. Principal component analysis and correlation analysis yielded similar results, which indicated that heavy metals were closely related to the input of anthropogenic pollution (i.e., industrial pollutants and sewage discharge).