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

被引：44

作者：

Ra, Kongtae ^{[1
]}

Kim, Joung-Keun ^{[1
]}

Hong, Sang Hee ^{[2
,4
]}

Yim, Un Hyuk ^{[2
,4
]}

Shim, Won Joon ^{[2
,4
]}

Lee, Seung-Yong ^{[1
]}

Kim, Young-Ok ^{[3
]}

Lim, Jaesoo ^{[5
]}

Kim, Eun-Soo ^{[6
]}

Kim, Kyung-Tae ^{[4
]}

机构：

[1] KIOST, Marine Environm & Conservat Res Div, Ansan 426744, South Korea

[2] KIOST, Oil & POPs Res Grp, South Sea Res Inst, Geoje 656834, South Korea

[3] KIOST, South Sea Environm Res Div, South Sea Res Inst, Geoje 656839, South Korea

[4] Univ Sci & Technol, Taejon 305350, South Korea

[5] Korea Inst Geosci & Mineral Resources, Geol Environm Div, Taejon 305350, South Korea

[6] KIOST, Oceanog Measurements & Instrument Calibrat Serv C, Ansan 426744, South Korea

来源：

OCEAN SCIENCE JOURNAL | 2014年 / 49卷 / 03期

关键词：

Ulsan Bay; heavy metal; pollution; ecological risk; sediment quality guideline (SQGs); TRACE-METALS; COASTAL SEDIMENTS; MARINE-SEDIMENTS; LAKE SHIHWA; CONTAMINATION; WATER; ELEMENTS; VICINITY; BENGAL; INDIA;

D O I：

10.1007/s12601-014-0028-3

中图分类号：

Q17 [水生生物学];

学科分类号：

071004 ;

摘要：

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.

引用

页码：279 / 289

页数：11

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