Applying new regional background concentration criteria to assess heavy metal contamination in deep-sea sediments at an ocean dumping site, Republic of Korea SCIE SCOPUS

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Title
Applying new regional background concentration criteria to assess heavy metal contamination in deep-sea sediments at an ocean dumping site, Republic of Korea
Author(s)
Jung, Jun Mo; Kim, Chang Joon; Chung, Chang Soo; Kim, Taejin; Gu, Haesan; Kim, Hye Eun; Choi, Ki Young
KIOST Author(s)
Kim, Chang Joon(김창준)Gu, Haesan(구해산)Kim, Hye Eun(김혜은)Choi, Ki Young(최기영)
Alternative Author(s)
정준모; 김창준; 정창수; 구해산; 김혜은; 최기영
Publication Year
2024-03
Abstract
It is crucial to establish appropriate background concentrations to discern heavy metal pollution in the marine environment. In this study, we analyzed heavy metals in deep-sea sediment cores to determine regional background concentrations at the East-Sea Byeong Ocean dumping site. The vertical profiles of heavy metals were categorized into three groups based on their contamination characteristics, and regional background levels for 12 metals were determined using pre-1900 averages. The enrichment factor, contamination factor, and pollution load index, calculated using regional background concentrations, indicated significant contamination by Cr, Co, Cu, Zn, Cd, Hg, and Pb during the ocean dumping period. These results differ from those obtained using global average concentrations. This underscores the importance of considering regional characteristics to minimize the risk of misinterpreting anthropogenic impacts. The approach based on local information is considered useful when sediment quality guidelines are absent or inapplicable. © 2024 Elsevier Ltd
ISSN
0025-326X
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/45368
DOI
10.1016/j.marpolbul.2024.116065
Bibliographic Citation
Marine Pollution Bulletin, v.200, 2024
Publisher
Pergamon Press Ltd.
Keywords
East Sea; Heavy metals; Ocean dumping site; Regional background concentrations; Sediments
Type
Article
Language
English
Document Type
Article
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