Molecular level determination of water accommodated fraction with embryonic developmental toxicity generated by photooxidation of spilled oil
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Title
- Molecular level determination of water accommodated fraction with embryonic developmental toxicity generated by photooxidation of spilled oil
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Author(s)
- Kim, Donghwi; Jung, Jee-Hyun; Ha, Sung Yong; An, Joon Geon; Shankar, Ravi; Kwon, Jung-Hwan; Yim, Un Hyuk; Kim, Sung Hwan
- KIOST Author(s)
- Kim, Dong Hwi(김동휘); Jung, Jee Hyun(정지현); Ha, Sung Yong(하성용); An, Joon Geon(안준건); Yim, Un Hyuk(임운혁)
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Alternative Author(s)
- 김동휘; 정지현; 하성용; 안준건; RAVI; 임운혁
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Publication Year
- 2019-12
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Abstract
- In this study, developmental toxicity was increased as the oil was further degraded under natural sunlight. Detailed chemical composition of the degraded oils was examined by use of gas chromatography (GC) and (-) electrospray ionization ultrahigh resolution mass spectrometry (UHR-MS). Baseline toxicities were estimated based on chemical activities of polycyclic aromatic hydrocarbons, and it was obvious that the predicted chemical activities can not explain increased toxicity alone. However, the ultrahigh resolution mass spectral abundance of polar compounds including O-3 and O-4 class compounds was significantly increased as the photodegradation proceeded. Further examination of double bond equivalence values of the compounds showed that polar compounds with both non-aromatic and aromatic polar structures were increased. Statistical analysis indicates that the increased toxicity can be well explained by the increased polar compounds. Therefore, the oxygenated compounds identified in this study can play an important role in toxicity of degraded oils. (C) 2019 Elsevier Ltd. All rights reserved.
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ISSN
- 0045-6535
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URI
- https://sciwatch.kiost.ac.kr/handle/2020.kiost/450
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DOI
- 10.1016/j.chemosphere.2019.124346
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Bibliographic Citation
- CHEMOSPHERE, v.237, 2019
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Publisher
- PERGAMON-ELSEVIER SCIENCE LTD
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Keywords
- Ultrahigh resolution mass spectrometry; Oil spill; Photooxidation; Toxicity; Chemometrics
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Type
- Article
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Language
- English
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Document Type
- Article
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