Diagnostic ratios for the rapid evaluation of natural attenuation of heavy fuel oil pollution along shores

Esquinas, N.; Rodríguez-Valdés, Eduardo; Márquez, G.; Gallego, José Luis

doi:10.1016/j.chemosphere.2017.06.087

Cited by 15 publications

(7 citation statements)

References 47 publications

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“…) and both have a similar volatilization rate (Esquinas et al . ), a >50% decrease in the mean C 18 /phytane ratio in both OiDisp and OnOi confirms that biodegradation was the major fate for the linear alkanes (Peters et al . ; Snape et al .…”

Section: Discussionmentioning

confidence: 66%

“…The influence of biodegradation in the overall hydrocarbon removal was determined by comparing the C 18 /phytane ratio between timepoints T1 and T21. Assuming that isoalkanes are less susceptible to biodegradation than linear alkanes (Peters et al 2005;Hasinger et al 2012) and both have a similar volatilization rate (Esquinas et al 2017), a >50% decrease in the mean C 18 /phytane ratio in both OiDisp and OnOi confirms that biodegradation was the major fate for the linear alkanes (Peters et al 2005;Snape et al 2006). However, differences between OiDisp and OnOi were not significant, indicating that chemical dispersion did not affect biodegradation.…”

Section: Discussionmentioning

confidence: 97%

“…A CPI >1 indicates that hydrocarbons are of petrogenic origin while a CPI <1 indicates that they are of biogenic origin (Pietrogrande et al 2009). The biodegradation was confirmed by comparing the variation of the C18/phytane ratio between timepoints (Snape et al 2006), assuming that linear alkanes are preferentially biodegraded, in comparison to branched alkanes (Peters et al 2005;Hasinger et al 2012), and that both have a similar volatilization rate (Esquinas et al 2017). C18/phytane mean variation was calculated only for oil contaminated treatments (OnOi and OiDisp).…”

Section: Discussionmentioning

confidence: 99%

“…), and that both have a similar volatilization rate (Esquinas et al . ). C18/phytane mean variation was calculated only for oil contaminated treatments (OnOi and OiDisp).…”

Section: Methodsmentioning

confidence: 97%

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Microcosm evaluation of the impact of oil contamination and chemical dispersant addition on bacterial communities and sediment remediation of an estuarine port environment

et al. 2019

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Aim To evaluate the interactive effects of oil contamination and chemical dispersant application on bacterial composition and sediment remediation of an estuarine port environment. Methods and Results A multifactorial controlled microcosm experiment was set up using sediment cores retrieved from an estuarine port area located at Ria de Aveiro lagoon (Aveiro, Portugal). An oil spill with and without chemical dispersant addition was simulated. Sediment oil hydrocarbon concentrations and benthic bacterial community structure were evaluated by GC‐MS and 16S rRNA high‐throughput sequencing respectively. Although initially (first 10 days) chemical dispersion of oil enhanced the concentrations of the heavier polycyclic aromatic hydrocarbons and of the C22‐C30 alkane group, with time (21 days), no significant differences in hydrocarbon concentrations were detected among treatments. Moreover, no significant changes were detected in the structure of sediment bacterial communities, which mainly consisted of operational taxonomic units related to hydrocarbon‐contaminated marine environments. We hypothesize that the environmental background of the sampling site preconditioned the communities’ response to additional contamination. Conclusion This experimental microcosm study showed that the chemical dispersion of oil did not influence sediment remediation or bacterial community composition. Significance and Impact of the Study Our study showed that chemical dispersion of oil may not improve the remediation of port sediments. Further studies are needed to investigate the impact of chemical dispersants in combination with bioremediation strategies on the process of sediment remediation in port areas.

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Section: Discussionmentioning

confidence: 66%

Section: Discussionmentioning

confidence: 97%

Section: Discussionmentioning

confidence: 99%

“…), and that both have a similar volatilization rate (Esquinas et al . ). C18/phytane mean variation was calculated only for oil contaminated treatments (OnOi and OiDisp).…”

Section: Methodsmentioning

confidence: 97%

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Microcosm evaluation of the impact of oil contamination and chemical dispersant addition on bacterial communities and sediment remediation of an estuarine port environment

et al. 2019

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“…Characterization of petroleum-derived products (PDPs) is an area of continuing importance in environmental science, for example for the identification of fuel spills [ 1 ]. Oil and fuel spills (accidental or illegal intentional operational discharges) are commonplace, but a full determination of the source is not always straightforward [ 2 , 3 , 4 , 5 ].…”

Section: Introductionmentioning

confidence: 99%

Characterization and Differentiation of Petroleum-Derived Products by E-Nose Fingerprints

Ferreiro-González

Barbero

Ayuso

et al. 2017

Sensors

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Characterization of petroleum-derived products is an area of continuing importance in environmental science, mainly related to fuel spills. In this study, a non-separative analytical method based on E-Nose (Electronic Nose) is presented as a rapid alternative for the characterization of several different petroleum-derived products including gasoline, diesel, aromatic solvents, and ethanol samples, which were poured onto different surfaces (wood, cork, and cotton). The working conditions about the headspace generation were 145 °C and 10 min. Mass spectroscopic data (45–200 m/z) combined with chemometric tools such as hierarchical cluster analysis (HCA), later principal component analysis (PCA), and finally linear discriminant analysis (LDA) allowed for a full discrimination of the samples. A characteristic fingerprint for each product can be used for discrimination or identification. The E-Nose can be considered as a green technique, and it is rapid and easy to use in routine analysis, thus providing a good alternative to currently used methods.

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Factors influencing the fate of oil spilled on shorelines: a review

Wang

Lee

et al. 2020

Environ Chem Lett

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Diagnostic ratios for the rapid evaluation of natural attenuation of heavy fuel oil pollution along shores

Cited by 15 publications

References 47 publications

Microcosm evaluation of the impact of oil contamination and chemical dispersant addition on bacterial communities and sediment remediation of an estuarine port environment

Microcosm evaluation of the impact of oil contamination and chemical dispersant addition on bacterial communities and sediment remediation of an estuarine port environment

Characterization and Differentiation of Petroleum-Derived Products by E-Nose Fingerprints

Factors influencing the fate of oil spilled on shorelines: a review

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