Distribution and assessment of heavy metal concentrations in the East Sea-Byeong ocean dumping site, Korea

Sediment cores were collected from three sites, the Control, Dumping, and Resting sites in the East Sea-Byeong ocean dumping site, Korea, and the enrichment and degree of accumulation of heavy metals were investigated. Further, to assess the level of heavy metal pollution and understand the potentia...

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Bibliographic Details
Published in:Marine pollution bulletin 2021-11, Vol.172, p.112815-112815, Article 112815
Main Authors: Kim, Young-Ryun, Kang, Dong-Won, Lee, Sangjin, Choi, Ki-Young, Kim, Hye-Eun, Jung, Jun-Mo, Chung, Chang-Soo, Jang, Young-Suk, Kim, Chang-Joon
Format: Article
Language:English
Subjects:
Anthropogenic factors
Background level
Contamination
Cores
Dumping
Enrichment
Heavy metal contamination
Heavy metals
Management tools
Marine sediment
Metal concentrations
Metals
Ocean dumping
Pollution index
Sediment
Sediment pollution
Sediments
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Summary:Sediment cores were collected from three sites, the Control, Dumping, and Resting sites in the East Sea-Byeong ocean dumping site, Korea, and the enrichment and degree of accumulation of heavy metals were investigated. Further, to assess the level of heavy metal pollution and understand the potential effects of the ocean dumping activities that began in 1993, the results obtained corresponding to the different sampling sites were compared, and various criteria were employed. Indices, including the enrichment factor and the modified contamination degree, demonstrated that the sediments were contaminated with various heavy metals at different contamination levels. The results also indicated a significant upward enrichment in heavy metals, with the uppermost 0–10 cm sediment layer showing relatively high concentrations. Overall, this study confirmed that anthropogenic heavy metal contamination at the study sites, and the implementation of continuous monitoring, alongside the application of proper management tools, is recommended. •Sediments from an ocean dumping site were assessed for heavy metal pollution.•Varying degrees of heavy metal contamination were observed.•The uppermost 0–10 cm sediment layer showed relatively high heavy metal contents.•Various indices showed that the sediments were contaminated to varying degrees.•A decreasing contamination trend was found from 2009 to 2015 by contamination reduction policy
ISSN:0025-326X
1879-3363
DOI:10.1016/j.marpolbul.2021.112815