Assessment of heavy metal contamination and its ecological risk in the surface sediments along the coast of Korea SCIE SCOPUS

Cited 45 time in WEB OF SCIENCE Cited 51 time in Scopus
Title
Assessment of heavy metal contamination and its ecological risk in the surface sediments along the coast of Korea
Author(s)
Ra, Kongtae; Kim, Eun-Soo; Kim, Kyung-Tae; Kim, Joung-Keun; Lee, Jung-Moo; Choi, Jin-Young
KIOST Author(s)
Ra, Kong Tae(나공태)Kim, Kyung Tae(김경태)Choi, Jin Young(최진영)
Publication Year
2013
Abstract
We studied the spatial distribution of heavy metal contamination and its ecological risk assessment in sediments from the Korean coast. Surface sediments collected from 12 coastal zones of Korea (total 200 sediment samples) along the west, south and east coast of Korea have been analyzed for heavy metals including Cr, Co, Ni, Cu, Zn, As, Cd, Pb and Hg using ICP-MS. Mean concentrations were 58.3 mg/kg for Cr, 10.2 mg/kg for Co, 24.3 mg/kg for Ni, 36.5 mg/kg for Cu, 122 mg/kg for Zn, 9.1 mg/kg for As, 0.25 mg/kg for Cd, 35.0 mg/kg for Pb and 0.046 mg/kg for Hg, respectively. Sediments sampled from heavily industrialized areas such as Shihwa, Masan, Gwangyang and Ulsan were highly contaminated with Cu, Zn, Cd and Hg. Significantly positive correlation among metals were observed (p<0.01). This suggests that sources of metal contamination were mainly attributed to anthropogenic inputs from surrounding environment, especially national industrial complexes that consist of iron, steel, machinery, electronics and petrochemical. The results of metal assessment indices indicated that the Korean coast sediments were moderately contaminated with Cu, Zn, As, Cd, Pb and Hg. The mean of metal enrichment levels decreased following the order of Cu>Hg>Cd>Zn>As>Pb>Co>Cr>Ni. Based on the comparison with sediment quality guidelines (SQGs), Cu, As and Zn levels at more than 40% of sediment samples exceeding TEL values are likely to result in potential adverse effects on sediment-dwelling organisms.
ISSN
0749-0208
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/3368
DOI
10.2112/SI65-019.1
Bibliographic Citation
JOURNAL OF COASTAL RESEARCH, pp.105 - 110, 2013
Publisher
COASTAL EDUCATION & RESEARCH FOUNDATION
Subject
TRACE-METALS; LAKE SHIHWA; MASAN BAY; ACCUMULATION; ESTUARIES; TOXICITY; EXTENT; HARBOR; SEA
Keywords
Metal concentrations; total digestion of sediments; metal assessment indices; sediment quality guidelines (SQGs); ecological risk assessment
Type
Article
Language
English
Document Type
Article; Proceedings Paper
Publisher
COASTAL EDUCATION & RESEARCH FOUNDATION
Related Researcher
Research Interests

Management of marine environment,Marine pollution,Trace metal(Heavy metal),해양환경관리,해양오염,미량금속(중금속)

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