Speciation and Ecological Risk Assessment of Trace Metals in Surface Sediments of the Masan Bay

Sun, Chul-In; Lee, Young-Ju; An, Jung-Hyun; Lee, Yong-Woo

doi:10.7850/jkso.2014.19.2.155

Cited by 8 publications

(1 citation statement)

References 47 publications

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“…태화강 하구 퇴적물 중 미량금속의 오염도 및 위해도를 평가하 기 위하여 이 연구에서는 최근에 국내외 여러 연구자들에 의해 널리 사용되어 온 퇴적물 기준(Sediment Quality Guidelines; SQGs)과의 비교, 농축 계수(Enrichment Factor, EF), 농집 지 수(Geoaccumulation index, I geo ), 오염 부하량 지수(Pollution load index, PLI), 생태계 위해도 지수(Ecological risk index, ERI)의 5가지 평가방법 (Hwang et al, 2006;Hyun et al, 2007;Feng et al, 2011;Zhu et al, 2011;Ra et al, 2013;Sun et al, 2014) EF는 퇴적물 내 광물의 구성비율을 고려하여 보정원소(Al, Fe 등)에 대한 각 미량금속의 농도비 값을 이용하여 지각에 비 해 퇴적물 중 미량금속이 어느 정도 농축되어 있는지를 알아보 는 방법으로 (Sinex and Helz, 1981; (Hyun et al, 2003;Feng et al, 2011). 이 연구에서 는 국내외 많은 연구자들 (Chen et al, 2007;Zhang et al, 2009;, Zhu et al, 2011 이 널리 이용하고 있는 Taylor (1964) 자갈, 모래, 실트, 점토의 함량은 각각 0.0-40.8% (평균 6.7±12.7%), 0.9-99.9% (평균 66.0±28.7%), 0.0-58.6% (평 균 17.5±20.5%), 0.0-40.6% (평균 9.8±11.9%)범위였다.…”

Section: 미량금속의 오염도 및 위해도 평가방법unclassified

Evaluation of Pollution Level for Organic Matter and Trace Metals in Sediments around Taehwa River Estuary, Ulsan

Hwang¹,

Lee²,

Choi³

et al. 2015

Korean Journal of Fisheries and Aquatic Sciences

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Grain size, the content of ignition loss (IL), and the concentrations of chemical oxygen demand (COD), acid volatile sulfide (AVS), and trace metals (Fe, Mn, Cu, Pb, Zn, Cd, Cr, As, and Hg) in surface sediments from the Taehwa River estuary, Ulsan, were measured to evaluate pollution levels and potential ecological risks of organic matter and trace metals in estuarine sediment. The mean grain size (Mz) of sediments in the study region ranged from -0.8-7.7 φ (mean 2.8 ± 2.4 φ). Surface sediments in the upstream region of the Taehwa River were mainly composed of coarse sediments compared to the downstream region. The concentrations of IL, COD, AVS and trace metals in the sediment were much higher at downstream sites of Myeongchon Bridge in the vicinity of industrial complexes than at upstream sites of those in the vicinity of the residential areas due to the anthropogenic input of organic matter and trace metals by industrial activities. On the basis of several geochemical assessment techniques [sediment quality guidelines (SQGs), enrichment factor (EF), geoaccumulation index (I geo ), pollution load index (PLI) and ecological risk index (ERI)], the surfaces sediments in the study region are not highly polluted for trace metals, except for As. However, the higher concentrations in downstream study regions of the Taehwa River could impact benthic organisms including shellfish (i.e. Manila clam) in sediments.

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Section: 미량금속의 오염도 및 위해도 평가방법unclassified

Evaluation of Pollution Level for Organic Matter and Trace Metals in Sediments around Taehwa River Estuary, Ulsan

Hwang¹,

Lee²,

Choi³

et al. 2015

Korean Journal of Fisheries and Aquatic Sciences

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Distributions of Organic Matter and Heavy Metals in the Surface Sediment of Jaran Bay, Korea

Hwang¹,

Hwang²,

Lee³

et al. 2018

J. Korean Soc. Mar. Environ. Saf.

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Pollution and Ecological Risk Assessment of Trace Metals in Surface Sediments of the Ulsan-Onsan Coast

Sun¹,

Kim²,

Lee³

et al. 2015

Journal of the Korean Society for Marine Environment & Ener

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요 약 완전산분해법과 단일시약(1 M HCl) 추출법을 이용하여 울산-온산연안 표층퇴적물 내 미량금속의 오염도 및 생태위해 성을 평가하였다. 표층퇴적물 내 미량금속 중 Cu, Cd, Pb, Zn, Hg의 농도는 울산연안에 비해 온산연안에서 2배 이상 높게 나타났다. 단일시약 추출 분석 결과, Cd과 Pb은 총함량 중 가용성부분의 평균 함량이 각각 72%, 78%로 인위적 기원에 의해서 주로 공급되는 것으로 나타난 반면, Cr, Li, Ni, As는 잔류성부분에서 평균 80% 이상 존재하여 주로 자 연적 기원의 영향을 받는 것으로 나타났다. 국내 해저퇴적물 해양환경기준과 비교한 결과, Cu, Pb, Zn, Hg의 총농도는 온산연안 일부 정점에서 관리기준을 초과하였으며, Cr, Ni은 모든 정점에서 주의기준 이하였다. 미량금속의 오염도 및 생태위해성을 다양한 지수(EF, I geo , m-PEL-Q, ERI)로 평가한 결과, 울산-온산연안에서 미량금속 중 Cu, Cd, Pb, Zn, Hg의 오염도가 높았으며, 생태계에 잠재적 위해성은 Cd과 Hg이 가장 큰 것으로 나타났다.Abstract − Total acid digestion and 1 M HCl extraction methods were used to investigate the pollution status and the degree of ecological risk of trace metals in surface sediments from the Ulsan-Onsan coast. Total concentrations of trace metals (Cu, Cd, Pb, Zn, and Hg) were two-fold higher in surface sediments from Onsan coast than in those from Ulsan coast. The mean labile fractions of the total concentrations of Cd and Pb were 72% and 78%, respectively, indicating a high contribution from anthropogenic sources, whereas Cr, Li, Ni, and As in the residual fraction exceeded 80%, indicating a high contribution from natural sources. According to the results of assessment of trace metal pollution using the sediment quality guidelines in Korea, the concentrations of Cu, Pb, Zn, and Hg were higher than the values of the probable effects level (PEL) at some stations of Onsan coast, and the concentrations of Cr and Ni were lower than the values of the threshold effects level (TEL). The pollution level and ecological risk of the trace metals were analyzed using various indexes (EF, I geo , m-PEL-Q, and ERI). Our results showed that the degree of pollution by trace metals (Cu, Cd, Pb, Zn, and Hg) on the Ulsan-Onsan coast was high, and Hg and Cd were the major potential ecological risk factors.

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Speciation and Ecological Risk Assessment of Trace Metals in Surface Sediments of the Masan Bay

Cited by 8 publications

References 47 publications

Evaluation of Pollution Level for Organic Matter and Trace Metals in Sediments around Taehwa River Estuary, Ulsan

Evaluation of Pollution Level for Organic Matter and Trace Metals in Sediments around Taehwa River Estuary, Ulsan

Distributions of Organic Matter and Heavy Metals in the Surface Sediment of Jaran Bay, Korea

Pollution and Ecological Risk Assessment of Trace Metals in Surface Sediments of the Ulsan-Onsan Coast

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