Journal
ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
Volume 224, Issue -, Pages -Publisher
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.ecoenv.2021.112644
Keywords
Petroleum fuels; Oil spill accident; Parent and alkylated PAHs; Source identification; Baseline data
Categories
Funding
- Japan Society for the Promotion of Science (JSPS, KAKENHI) [15H02852]
- Grants-in-Aid for Scientific Research [15H02852] Funding Source: KAKEN
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This study analyzed 11 types of petroleum fuels and lubricants for PAH compounds, finding that the PAH compositions varied between different fuels due to differences in refining temperatures and boiling points. The oils were classified into four groups based on principal component analysis, and could potentially be used for oil fingerprinting analyses to identify sources of oil spill accidents.
Eleven types of petroleum fuels and lubricants including regular gasoline, premium gasoline, jet fuel, kerosene, light oil, bunker A, bunker A-white, bunker A-low sulfur, bunker C, quench oil and lubricant samples were analyzed for parent and alkylated polycyclic aromatic hydrocarbons (PAHs). Naphthalene was the predominant compound in gasolines, jet fuel and kerosene, constituting > 95% of the parent PAHs, whereas dibenzothiophene and other high molecular weight PAHs were predominant in bunker A and bunker C. PAH compositions in petroleum fuels differ because of differences in their refining temperatures and the boiling points of individual PAHs. Principal component analysis classified into four groups of petroleum fuels. Further, oil samples were clearly separated into five groups based on their ratios of select alkyl homologs (C0/(C0+C1) and C4/(C2+C4) naphthalenes): 'gasolines' 'light oil' 'bunker oils' 'kerosene' and 'quench oil'. A wide variety and detailed profiles of PAHs in petroleum fuels and lubricants in this study can be used for baseline data in oil fingerprinting analyses to identify the potential source of oil spill accidents in the environment.
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