厦门-金门海域表层沉积物中重金属铜铅锌镉的含量分布  

Concentrations and distributions of Cu,Pb,Zn,Cd in surface sediments from Xiamen Jinmen sea area

作　　者：洪丽玉[1] 陈伟琪[1] 洪华生[1] 徐立[1] 王新红[1] 

机构地区：[1]厦门大学海洋环境科学教育部重点实验室,厦门大学环境科学研究中心,厦门361005

出　　处：《台湾海峡》2000年第4期441-445,共5页Journal of Oceanography In Taiwan Strait

基　　金：厦门市科委资助的两岸合作项目

摘　　要：1995年 1 0月调查研究了厦门 金门海域表层沉积物中重金属Cu、Pb、Zn、Cd的含量 ,Cu、Pb、Zn、Cd的平均浓度分别为 1 6 .6、5 2 .6、1 0 4、0 .2 0 5 (× 1 0 -6m/m ,干重 )。根据底质标准 ,Pb、Zn明显超标。从平面分布看 ,厦门岛南部海区(XJ1～XJ4号站 )的重金属含量高于北部海区 (XJ5～XJ7号站 ) ,北部海区又高于东部海区 (XJ9、R1、R2号站 ) ,尤其是南部海区的XJ1、XJ2、XJ3号站其含量明显较高。这一分布特征表明除了九龙江河流对该海域的贡献外 ,西海域的输入也是一个重要的因素。位于东部海区的XJ9、R1、R2号站 ,从XJ9至较靠近金门的R1、R2号站 ,重金属Cu、Pb、Zn、Cd的含量略有回升 ,其来源有待于进一步分析探讨。The concentrations of heavy metal Cu, Pb, Zn, Cd in surface sediments of Xiamen Jinmen sea area were investigated in Oct., 1995,whose mean concentrations were 16.6, 52.6, 104, 0.205 (×10 -6 m/m dry wt.) respectively. And those of Zn and Pb exceeded over the value of assessment criteria. For the plane distributions, the concentrations of Cu, Pb, Zn, Cd in the southern sea area (XJ1～XJ4 stations) were the highest, and those in the northern sea area (XJ5～XJ7 stations) were the second and those in the eastern sea area (XJ9, R1, R2 stations)were the lowest in Xiamen Jinmen sea area. Especially,the concentrations of Cu, Pb, Zn, Cd in the southern sea area (XJ1～XJ3stations) obviously higher than those of other stations, suggesting that input from the western Xiamen sea area was an important factor except the contribution from Jiulongjiang River to the sea area. From station XJ9 to R1 , R2, the concentrations of Cu, Pb, Zn, Cd had a slight increasing trend, and the sources of Cu,Pb,Zn,Cd in the eastern area would remain to be further probed.

关 键 词：海洋沉积物 重金属 厦门-金门海域 铜 铅 锌 镉 

分 类 号：P736.21[天文地球—海洋地质]