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Do distributions of...
Do distributions of diamondoid hydrocarbons accumulated in oil-contaminated fish tissues help to identify the sources of oil?
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Scarlett, Alan G. (author)
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- Spilsbury, Francis (author)
- Gothenburg University,Göteborgs universitet,Institutionen för biologi och miljövetenskap,Department of Biological and Environmental Sciences
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Rowland, Steven J. (author)
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Gagnon, Marthe Monique (author)
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Grice, Kliti (author)
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(creator_code:org_t)
- 2024
- 2024
- English.
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In: MARINE POLLUTION BULLETIN. - 0025-326X .- 1879-3363. ; 198
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https://gup.ub.gu.se...
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https://doi.org/10.1...
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Abstract
Subject headings
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- Identifying the sources of environmental oil contamination can be challenging, especially for oil in motile organisms such as fish. Lipophilic hydrocarbons from oil can bioaccumulate in fish adipose tissue and potentially provide a forensic "fingerprint" of the original oil. Herein, diamondoid hydrocarbon distributions were employed to provide such fingerprints. Indices produced from diamondoids were used to compare extracts from fish adipose tissues and the crude and fuel oils to which the fish were exposed under laboratory conditions. A suite of 20 diamondoids was found to have bioaccumulated in the dietary-exposed fish. Cross-plots of indices between fish and exposure oils were close to the ideal 1:1 relationship. Comparisons with diamondoid distributions of nonexposure oils produced overall, but not exclusively, weaker correlations. Linear Discriminatory Analysis on a combined set of 15 diamondoid and bicyclane molecular ratios was able to identify the exposure oils, so a use of both compound classes is preferable.
Subject headings
- NATURVETENSKAP -- Geovetenskap och miljövetenskap -- Miljövetenskap (hsv//swe)
- NATURAL SCIENCES -- Earth and Related Environmental Sciences -- Environmental Sciences (hsv//eng)
Keyword
- Crude oil
- Fingerprinting
- Diamondoid
- Heavy fuel oil
- Adamantane
- Linear discriminatory analysis
Publication and Content Type
- ref (subject category)
- art (subject category)
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