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胶州湾及青岛近海表层沉积物重金属赋存形态研究
引用本文:魏璟弢,张焕玲,李铁,卢彦宏,周楠,朱茂旭.胶州湾及青岛近海表层沉积物重金属赋存形态研究[J].中国海洋大学学报(自然科学版),2012(Z1):157-164.
作者姓名:魏璟弢  张焕玲  李铁  卢彦宏  周楠  朱茂旭
作者单位:中国海洋大学海洋化学理论与工程技术教育部重点实验室
基金项目:留学回国人员科研启动基金项目(20062331);山东省自然科学基金项目(ZR2011DM003)资助
摘    要:2008年11月和2010年11月分别在青岛近海6个站位和胶州湾9个站位采集了表层沉积物样品,应用连续提取法分离和测定其主要成分和重金属的赋存形态。结果表明,易还原态的重金属受铁锰氧化物体系显著影响,其中镍的迁移过程基本受控于该体系,有机结合态的铬和钡迁移变化受有机质一定影响,其他形态重金属主要受外源输入影响。Pb和Cr存在显著富集,相对其他金属污染较明显。Pb的生态风险最高。胶州湾东部,尤其是李村河口附近重金属污染程度和不稳定性都最为明显。

关 键 词:重金属  化学形态  沉积物  胶州湾  青岛近海

Study of the Geochemical Forms of Heavy Metals in Surface Sediments of Jiaozhou Bay and Qingdao Inshore Areas
WEI Jing-Tao,ZHANG Huan-Ling,LI Tie,LU Yan-Hong,ZHOU Nan,ZHU Mao-Xu.Study of the Geochemical Forms of Heavy Metals in Surface Sediments of Jiaozhou Bay and Qingdao Inshore Areas[J].Periodical of Ocean University of China,2012(Z1):157-164.
Authors:WEI Jing-Tao  ZHANG Huan-Ling  LI Tie  LU Yan-Hong  ZHOU Nan  ZHU Mao-Xu
Institution:(The Key Laboratory of Marine Chemistry Theory and Technology,Ministry of Education,Ocean University of China,Qingdao 266100,China)
Abstract:Surface sediment samples at six sites from Qingdao inshore areas and nine sites from Jiaozhou Bay were collected in November 2008 and November 2010.The chemical forms of heavy metals and major component in samples were extracted and determined with a sequential chemical leaching method.The heavy metals in easily reducible(ERO;iron and manganese oxyhydroxide combined) are influenced by FeOOH-MnO2 observably,while The migration process of Ni in ERO are directly controlled by FeOOH-MnO2.The contents of Cr and Ba in organic matter combined(OSM) are controlled by organia carbon partly.The heavy metals of different chemical forms in the non-residue is mainly influenced by inputs of outer source excluded the part talked above.The extent of Pb and Cr contamination is more serious than other metals.Pb has the highest ecological risk.Heavy metal pollution levels and instability are the most obvious in eastern Jiaozhou Bay,especially near the mouth of Licun river.
Keywords:heavy metals  chemical forms  sediment  Jiaozhou Bay  Qingdao inshore area
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