Spatio-Temporal Variation Characteristics of Heavy Metal Contents in the Surface Seawater and Marine Sediments of Xinghua Bay
详细信息
- 责任者：Cai Rongshuo (Key Lab. of Global Change and Marine-Atmospheric Chemistry ; SOA ; Xiamen 361005 ; China) ; Bai Yashu
- 刊名：Journal of Oceanography in Taiwan Strait
- 出版年：2011
- 卷期：30（3）
- 关键词：海水 ; sea water ; 海洋沉积物 ; marine sediments ; 重金属 ; heavy metals ; 福建 ; Fujian Province
- 页码：p.316-323
- 图表：4 illus., 2 tables, 9 refs.
- 分类号：0200
- 出版序号：1543
- issnNo：ISSN1000-8160
- isbnNo：CN35-1091/P
摘要
///The spatio-temporal variation characteristics of heavy metals,such as Cu,Pb,Zn,Cd,Hg,and As contents,were investigated in surface seawaters collected in Xinghua Bay,Fujian Province,China in December 2006(winter) and April 2007(spring) and marine surface sediments collected in March 2007.Our analyses showed that the contents of Cu,Pb,Zn,Cd,Hg,and As in surface seawaters ranged<0.20~2.42,<0.03~1.08,<3.1~16.5,<0.010~0.043,<0.007~0.170,0.82~4.00 μg/dm3 in winter,and ranged 0.91~3.80,0.18~3.40,8.7~36.0,<0.01~0.22,<0.007~0.063,0.63~1.58 μg/dm3 in spring,respectively.The respective average contents of Cu,Pb,Zn,and Cd in surface seawaters in spring were higher than those in winter,which might be due to many more pollutants from land sources in spring.The contents of Cu,Pb,Zn,Cd,Hg,and As in marine surface sediments ranged 7.60~22.00,22.4~39.1,54.2~114.0,0.045~0.082,0.020~0.066,5.00~10.20 mg/kg,respectively.All heavy metal contents in surface seawaters and marine surface sediments were lower than the standard values of categories II and I of the seawater and the marine sediment quality standard,respectively.The heavy metal contents in surface seawaters and marine surface sediments in the nearshore areas were higher than those in the offshore areas.Recent observations over past years have shown that the contents of Cu and Pb in surface seawaters and marine surface sediments were very close to that of the historical observation results;however,the monitored values of heavy metals,such as Zn,fluctuated.
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