Effect-directed analysis and mixture effects of AhR-active PAHs in crude oil and coastal sediments contaminated by the Hebei Spirit oil spill
- Authors
- Hong, Seongjin; Lee, Sangwoo; Choi, Kyungho; Kim, Gi Beum; Ha, Sung Yong; Kwon, Bong-Oh; Ryu, Jongseong; Yim, Un Hyuk; Shim, Won Joon; Jung, Jinho; Giesy, John P.; Khim, Jong Seong
- Issue Date
- 4월-2015
- Publisher
- ELSEVIER SCI LTD
- Keywords
- Polycyclic aromatic hydrocarbons; Effect-directed analysis; H4IIE-luc bioassay; Oil weathering; Sediments; Yellow Sea
- Citation
- ENVIRONMENTAL POLLUTION, v.199, pp.110 - 118
- Indexed
- SCIE
SCOPUS
- Journal Title
- ENVIRONMENTAL POLLUTION
- Volume
- 199
- Start Page
- 110
- End Page
- 118
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/93924
- DOI
- 10.1016/j.envpol.2015.01.009
- ISSN
- 0269-7491
- Abstract
- The major AhR-active PAHs were identified in crude oil and oil-contaminated sediments by use of effect-directed analysis. As part of the study, an enhanced potency balance analysis was conducted by establishing the novel relative potency values of (alkyl)-PAHs from the H4IIE-luc bioassay. Silica gel column fractionation of crude oil resulted in greater AhR-mediated potencies in fractions of aromatics (F2) and resins (F3), and such trend was also observed for field collected sediment samples. AhR-mediated potencies of six F2 sub-fractions from HPLC indicated that the majority of F2 responses were attributable to 3-4 ring aromatics. Target PAHs including C4-phenanthrene, C1-chrysene, and C3-chrysene in sediments explained similar to 18% of the bioassay-derived TCDD-EQs, however, the unknown AhR agonists and potential mixture effects remain in question. Overall, the AhR-potency and antagonistic potential of residual oil in sediment tended to decrease over time, thus monitoring of weathering process would be key for the post management of oil-contaminated sites. (C) 2015 Elsevier Ltd. All rights reserved.
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Collections - College of Life Sciences and Biotechnology > Division of Environmental Science and Ecological Engineering > 1. Journal Articles
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