Assessment of sediment quality in two important areas of mariculture in the Bohai Sea and the northern Yellow Sea based on acid-volatile sulfide and simultaneously extracted metal results

MARINE POLLUTION BULLETIN

卷:72

Article

Gao, Xuelu^1,2  Li, Peimiao^1,3  Chen, Chen-Tung Arthur² 

[1] Chinese Acad Sci, Yantai Inst Coastal Zone Res YIC,YICCAS, Key Lab Coastal Zone Environm Proc & Ecol Remedia, Shandong Prov Key Lab Coastal Zone Environm Proc, Yantai 264003, Shandong, Peoples R China

[2] Natl Sun Yat Sen Univ, Inst Marine Geol & Chem, Kaohsiung 804, Taiwan

[3] Univ Chinese Acad Sci, Beijing 100049, Peoples R China

关键词: Acid-volatile sulfide;    Toxic trace metals;    Mobility;    Sediment geochemistry;    Mariculture area;    China;   

DOI  :  10.1016/j.marpolbul.2013.02.007

来源: Elsevier

【 摘 要 】

The surface sediments from Laizhou Bay (LB) and the coastal sea around Zhangzi Island (ZI) were analyzed for acid-volatile sulfide (AVS) and simultaneously extracted metals (SEMs) to assess the sediment quality. These two areas, especially LB, are important mariculture bases in China and are significantly affected by the Yellow River. The concentrations of AVS ([AVS]) and SEM ([SEM]) varied in the ranges 0.71-11.03 and 0.10-0.74 mu mol g(-1) dry weight, respectively. [AVS] was generally low in the river outlet area and increased in the seaward direction in LB. [AVS] was significantly and positively correlated with TOC. [SEM] was significantly and positively correlated with TOC, the water content of sediment and the fine sediment fraction and it was significantly and negatively correlated with coarse sediment fraction. The obtained results suggest that the surface sediments of LB and ZI were of high quality and not likely to cause negative effects on their ecosystems. (c) 2013 Elsevier Ltd. All rights reserved.

【 授权许可】

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