Assessment of pollution and ecological risk of heavy metals in the surface sediments of Ulsan Bay, Korea SCIE SCOPUS KCI

Cited 22 time in WEB OF SCIENCE Cited 26 time in Scopus
Title
Assessment of pollution and ecological risk of heavy metals in the surface sediments of Ulsan Bay, Korea
Author(s)
Ra, Kongtae; Kim, Joung-Keun; Hong, Sang Hee; Yim, Un Hyuk; Shim, Won Joon; Lee, Seung-Yong; Kim, Young-Ok; Lim, Jaesoo; Kim, Eun-Soo; Kim, Kyung-Tae
KIOST Author(s)
Ra, Kongtae(나공태)Hong, Sang Hee(홍상희)Yim, Un Hyuk(임운혁)Shim, Won Joon(심원준)Kim, Young Ok(김영옥)Kim, Kyung Tae(김경태)
Publication Year
2014-09
Abstract
Heavy metal concentrations in the surface sediments of specially managed Ulsan Bay were investigated to determine metal distribution, pollution status and its ecological risk using pollution indices (enrichment factor and geo-accumulation index), potential ecological risk index and sediment quality guidelines (SQGs). The order of mean concentration (mg/kg) of metals was Zn (361.9) > Cu (95.6) > Pb (90.7) > Cr (64.7) > Ni (32.2) > Co (16.6) > As (15.8) > Cd (0.40) > Hg (0.16) in sediments of Ulsan Bay. Spatial distribution of metals in sediments showed a significantly higher concentration near industrial complexes, indicating that metal pollution is caused by anthropogenic sources. The results of enrichment factor (EF) and geo-accumulation index (I-geo) showed that sediments were significantly accumulated with Cu, Zn, As, Cd, Pb and Hg, indicating moderate to very severe enrichment (pollution) by these metals. Based on the potential ecological risk index, Hg and Cd posed a very high and a considerable potential ecological risk. Cu and As posed a moderate potential ecological risk, while, other metals (Cr, Co, Ni, Zn and Pb) rarely posed any potential ecological risk to the coastal environments. The sediments in Ulsan Bay showed a very high level of ecological risk, dominated by Hg and Cd. Metal concentrations in sediments were 80% for Cu, 96.7% for Zn, 50% for As, 70% for Pb and 50% for Hg above the threshold effects level (TEL), respectively.
ISSN
1738-5261
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/2744
DOI
10.1007/s12601-014-0028-3
Bibliographic Citation
OCEAN SCIENCE JOURNAL, v.49, no.3, pp.279 - 289, 2014
Publisher
KOREA OCEAN RESEARCH DEVELOPMENT INST
Keywords
Ulsan Bay; heavy metal; pollution; ecological risk; sediment quality guideline (SQGs)
Type
Article
Language
English
Document Type
Article
Publisher
KOREA OCEAN RESEARCH DEVELOPMENT INST
Related Researcher
Research Interests

Microplastic pollution,Persistent Organic Pollutants,Oil Pollution,미세플라스틱 오염,잔류성 유기오염물질,유류오염

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