Assessment of pollution and ecological risk of heavy metals in the surface sediments of Ulsan Bay, Korea
SCIE
SCOPUS
KCI
Cited 33 time in
WEB OF SCIENCE
Cited 43 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); Kim, Jong Kun(김종근); Hong, Sang Hee(홍상희); Yim, Un Hyuk(임운혁); Shim, Won Joon(심원준); Kim, Young Ok(김영옥); Kim, Kyung Tae(김경태)
-
Alternative Author(s)
- 나공태; 김종근; 홍상희; 임운혁; 심원준; 이승용; 김영옥; 김은수; 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
- 한국해양과학기술원
-
Keywords
- Ulsan Bay; heavy metal; pollution; ecological risk; sediment quality guideline (SQGs)
-
Type
- Article
-
Language
- English
-
Document Type
- Article
- Files in This Item:
-
There are no files associated with this item.
Items in ScienceWatch@KIOST are protected by copyright, with all rights reserved, unless otherwise indicated.