Contamination Status of Persistent Organic Pollutants in Fish from the Han River Estuary, Korea

Title
Contamination Status of Persistent Organic Pollutants in Fish from the Han River Estuary, Korea
Author(s)
홍상희; 임운혁; 김용녀; 심원준
KIOST Author(s)
Hong, Sang Hee(홍상희)Yim, Un Hyuk(임운혁)Shim, Won Joon(심원준)
Publication Year
2007-11-14
Abstract
In order to assess the status of OCs contamination in fish inhabiting the coastal zone of Korea, we collected fish samples from Han River estuary from May 2005 to February 2007. The fish collected consists of several species because sampling of same species was difficult at all sites and seasons. Dorsal muscle tissue of fish was dissected from the whole body for analysis. Sampling location and fish species were presented in Fig. 1. Figure 1. Sampling location of fish from Han River estuaryPolychlorinated biphenyls and organochlorine pesticides such as DDTs, HCHs, CHLs and HCB were detected in muscle homogenates of all the fish samples. The overall summary of OCs concentrations is presented in Figure 2. Polychlorinated biphenyls were the predominant contaminants with concentrations ranging from 8.46 to 1710 ng/g lipid weight (lw) and DDT compounds recorded the second highest concentrations with the range of 5.76 - 1170 ng/g lw. HCHs, CHLs and HCB concentration in fish were relatively low ranging 1.14 - 133 ng/g lw, 0.28 – 89.7 ng/g lw, and 0.09 – 61.0 ng/g lw, respectively. The OC levels are relatively lower than those found in harbor regions of Korea (Yim et al., 2004). Among DDT compounds, DDE is dominant with the average composition of 60±12% and followed by DDD (35±11%) and DDT (5±3%). Same signature was also observed in sediment collected from this region before, which indicating that the degradation of DDT is in progress in the coastal environment. Regarding the HCH isomers, high proportion of β-HCH (33±17%) and γ-HCH (46±19%) was observed in fish samples followed by α-HCH (15±6%), and δ-HCH (5±3%). Risk-based screening value (SV) based on EPA method was calculated using the EPA approach to identify the primary chemicals of concern (Figure 2). About 90% of the fish samples showed the PCB concentrations exceeding the SV (5.04 ng/g). The concentrations of DDTs and dieldrin in fish exceeded their SVs at 47% and 20% of the
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/30183
Bibliographic Citation
UNU International Symposium on POPs, pp.1 - 3, 2007
Publisher
UNU Japan & Pusarpedal-KNLH Indonesia
Type
Conference
Language
English
Publisher
UNU Japan & Pusarpedal-KNLH Indonesia
Related Researcher
Research Interests

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

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