Sediment quality of the Bohai Sea and the northern Yellow Sea indicated by the results of acid-volatile sulfide and simultaneously extracted metals determinations

MARINE POLLUTION BULLETIN

卷:155

Article

Gao, Xuelu^1,2,3  Song, Jinming^3,4,5  Li, Xuegang^3,4,5  Yuan, Huamao^3,4,5  Zhao, Jianmin^1,3  Xing, Qianguo^1,3  Li, Peimiao¹ 

[1] Chinese Acad Sci, Yantai Inst Coastal Zone Res, CAS Key Lab Coastal Environm Proc & Ecol Remediat, Yantai 264003, Shandong, Peoples R China

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

[3] Chinese Acad Sci, Ctr Ocean Mega Sci, Qingdao 266071, Shandong, Peoples R China

[4] Chinese Acad Sci, Inst Oceanol, CAS Key Lab Marine Ecol & Environm Sci, Qingdao 266071, Shandong, Peoples R China

[5] Qingdao Natl Lab Marine Sci & Technol, Lab Marine Ecol & Environm Sci, Qingdao 266237, Shandong, Peoples R China

关键词: Toxic trace metals;    Geochemical form;    Potential mobility;    Sediment analysis;    Sediment quality indicator;    Biological risk;   

DOI  :  10.1016/j.marpolbul.2020.111147

来源: Elsevier

【 摘 要 】

The surface sediments from the Bohai Sea (BS) and the northern Yellow Sea (NYS) were analyzed for acidvolatile sulfide (AVS) and simultaneously extracted metals (SEM) to assess the sediment quality. The results indicated that>60% of the samples were found to have possible adverse effects on aquatic life in the BS based on the difference between the concentrations of AVS ([AVS]) and SEM ([SEM]), and the corresponding percentage in the NYS was<25%. Nevertheless, there was no indication of adverse effects for all the BS and the NYS samples when the total organic carbon (TOC) concentration was introduced in the sediment quality evaluation with [AVS] and [SEM]. The grain size composition, TOC, water content and pH all had significant influence on the distribution of [SEM] and the [SEM]/[AVS] ratios; while, in contrast, the distribution of [AVS] could be mainly determined by the redox condition of sediment.

【 授权许可】

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