Distribution and pollution assessment of trace metals in seawater and sediment in Laizhou Bay

被引:50
作者
Lue Dongwei [1 ,2 ]
Zheng Bing [3 ]
Fang Yan [2 ]
Shen Ge [1 ]
Liu Huijun [1 ]
机构
[1] China Agr Univ, Yantai Res Inst, Yantai 264670, Peoples R China
[2] Shandong Marine Fisheries Res Inst, Key Lab Marine Ecol Restorat, Yantai 264006, Peoples R China
[3] Natl Oceanog Ctr, Qingdao 266071, Peoples R China
基金
中国国家自然科学基金;
关键词
Laizhou Bay; trace metals; arsenic; sediments; seawater; BOHAI SEA; SURFACE SEDIMENTS; HEAVY-METALS; CHINA; CONTAMINATION; BIOACCUMULATION; ESTUARINE; TOXICITY; QUALITY; LAGOON;
D O I
10.1007/s00343-015-4226-3
中图分类号
Q [生物科学];
学科分类号
07 ; 0710 ; 09 ;
摘要
Selected trace metals (Pb, Cd, Cu, Hg) and arsenic in seawater and surface sediments of Laizhou Bay were determined, to evaluate their spatial distribution, pollution risk and potential ecological risk. Concentrations of the elements were 0.56-2.07, 0.14-0.38, 12.70-18.40, 0.014-0.094, and 1.13-2.37 mu g/L in the seawater and 8.94-32.2, 0.18-0.67, 4.51-30.5, 0.006-0.058, and 5.75-15.3 mg/kg in sediments for Pb, Cd, Cu, Hg and As, respectively. High concentrations of the trace metals and arsenic in seawater and surface sediments were generally observed near the river estuary. The pollution risk result of the elements showed that Cu was the prominent trace metal pollutant in seawater, followed by Hg, Pb, Cd and As. The metal complex pollution index in seawater was at a medium level. The most important trace metal pollutant in sediments was Cd, followed by As, Cu, Pb, and Hg. Our pollution assessment suggests that trace metal pollution in Laizhou Bay sediments was at a low level. The potential ecological risk was also low in surface sediment.
引用
收藏
页码:1053 / 1061
页数:9
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