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.
出处
《台湾海峡》
CAS
CSCD
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
