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

Xuelu Gao; Jinming Song; Xuegang Li; Huamao Yuan; Jianmin Zhao; Qianguo Xing; Peimiao Li

doi:10.1016/j.marpolbul.2020.111147

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

Mar Pollut Bull. 2020 Jun:155:111147. doi: 10.1016/j.marpolbul.2020.111147. Epub 2020 Apr 15.

Authors

Xuelu Gao¹, Jinming Song², Xuegang Li², Huamao Yuan², Jianmin Zhao³, Qianguo Xing³, Peimiao Li⁴

Affiliations

¹ CAS Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai, Shandong 264003, China; University of Chinese Academy of Sciences, Beijing 100049, China; Center for Ocean Mega-Science, Chinese Academy of Sciences, Qingdao, Shandong 266071, China. Electronic address: [email protected].
² Center for Ocean Mega-Science, Chinese Academy of Sciences, Qingdao, Shandong 266071, China; CAS Key Laboratory of Marine Ecology and Environmental Sciences, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China; Laboratory for Marine Ecology and Environmental Sciences, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266237, China.
³ CAS Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai, Shandong 264003, China; Center for Ocean Mega-Science, Chinese Academy of Sciences, Qingdao, Shandong 266071, China.
⁴ CAS Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai, Shandong 264003, China.

PMID: 32310103
DOI: 10.1016/j.marpolbul.2020.111147

Abstract

The surface sediments from the Bohai Sea (BS) and the northern Yellow Sea (NYS) were analyzed for acid-volatile 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.

Keywords: Biological risk; Geochemical form; Potential mobility; Sediment analysis; Sediment quality indicator; Toxic trace metals.

MeSH terms

Acids
Environmental Monitoring
Geologic Sediments
Metals / analysis
Metals, Heavy / analysis*
Sulfides / analysis
Water Pollutants, Chemical / analysis*

Substances

Acids
Metals
Metals, Heavy
Sulfides
Water Pollutants, Chemical