Natural attenuation of oil in marine environments: A review

Péquin, Bérangère; Cai, Qinhong; Lee, Kenneth; Greer, Charles W.

doi:10.1016/j.marpolbul.2022.113464

Cited by 22 publications

(9 citation statements)

References 277 publications

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“…In the late stage of diesel biodegradation addition, more bacteria bind to the surface of JNs, due to the influence of gravity, and the diesel–JNs–bacteria system settles into seawater, which reduces the diesel concentration and makes the contact area larger, thus improving the efficiency of diesel biodegradation. 53…”

Section: Resultsmentioning

confidence: 99%

“…In the late stage of diesel biodegradation addition, more bacteria bind to the surface of JNs, due to the influence of gravity, and the diesel-JNs-bacteria system settles into seawater, which reduces the diesel concentration and makes the contact area larger, thus improving the efficiency of diesel biodegradation. 53 Finally, the biodegradation of different components in diesel was compared by bacteria using a gas chromatography technique. It can be found from Fig.…”

Section: Biodegradation Of Oilmentioning

confidence: 99%

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Synergistic dispersion and biodegradation of oil in seawater based on Janus nanosheets and oil-degrading bacteria

Zhao,

Hu,

Kang

et al. 2024

Environ. Sci.: Nano

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Section: Resultsmentioning

confidence: 99%

Section: Biodegradation Of Oilmentioning

confidence: 99%

Synergistic dispersion and biodegradation of oil in seawater based on Janus nanosheets and oil-degrading bacteria

Zhao,

Hu,

Kang

et al. 2024

Environ. Sci.: Nano

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“…Many of the abundant prokaryotic ASVs were identified as genera with known hydrocarbon degraders. This includes Pseudoalteromonas, Oceanospirillum, Ulvibacter, Alteromonas and Desulfosarcina (Achberger et al 2021;Voordouw et al 1996;Watanabe et al 2017;Pequin et al 2022). The eukaryotic community was dominated by dinoflagellates and diatoms.…”

Section: Cell Densitymentioning

confidence: 99%

“…As with sediment, the leachate had several ASVs that may represent organisms capable of hydrocarbon degradation. This includes Pseudoalteromonas, Oceanospirillum, Vibrio and Alteromonas (Achberger et al 2021;Pequin et al 2022;Kampouris et al 2023). While dinoflagellates were also abundant in the leachate, the abundant eukaryotic ASVs also included green algae and fewer diatoms.…”

Section: Cell Densitymentioning

confidence: 99%

Measuring the Fate and Natural Attenuation Potential of a Viscous Marine Fuel on an Artificial Beach Mesocosm

Poon,

Greer,

Wasserscheid

et al. 2024

Environ. Process.

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Shoreline oiling poses a risk to coastal ecosystems and resources. Understanding the natural attenuation potential and impact of different sediment types is important for choosing appropriate intervention strategies and priority areas following a spill. Simulated IFO-40 oil spills on artificial beach mesocosms were carried out using different sediment types: sandy beach and sandy tidal flat, under low energy tidal cycles over a 5-day period. Chemical and biological analysis of leachate and sediment was conducted to understand the movement of oil through these mesocosms. Rapid oil movement from the oil slick to the surface sediment layer was observed in the sandy beach enclosures, while slower oil movement was observed in the sandy tidal flat enclosures. Increased hydrocarbon dissolution was observed in the sandy beach enclosures, marked by higher concentrations of low molecular weight n-Alkanes (C12 − 15) and naphthalenes (C0 − 3) in sandy beach leachate compared to sandy tidal flat samples. Despite the increase in hydrocarbons, there were no major shifts in microbial communities observed in the leachate and sediment compartments for either sediment type. Both prokaryote and microeukaryote communities differed between the two sediment types, with little overlap between dominant sequences. Our results indicate that limited oil penetration occurs within sandy tidal flat shorelines resulting in oil accumulation suggesting that sorbent or vacuuming could be used as emergency response to minimize the environmental and ecological impacts of spilled oil.

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“…After oil spills, marine fragmentation waves break the oil slick into small droplets, and compared to the lower concentration of particles in the ocean, − the abundant particles in the nearshore environment (especially in the surf zone and swash zone) are prone to form oil–particle aggregates (OPAs) with the oil droplets. − The formation of OPAs further affects the vertical migration of oil droplets by reducing the adhesion property of the oil and making relatively stable OPAs more easily dispersed in water. ,,, It plays an important role in determining the transport and destination of oil spills. − Furthermore, OPA formation also contributes to the biodegradation of oil spills. , Therefore, accurately capturing oil–particle–bacteria interactions is critical for predicting the transport and transformation of oil spills in the nearshore marine environments …”

Section: Introductionmentioning

confidence: 99%

The Role of Bacteria in the Formation and Migration of Oil–Particle Aggregates (OPAs) after Marine Oil Spills and the Associated Mechanism

Dong

Wan

Wang³

et al. 2023

Environ. Sci. Technol.

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Oil spills interact with mineral particles to form oil− particle aggregates (OPAs), which promotes the oil's natural diffusion and biodegradation. We investigated the effect of bacteria on the formation and vertical migration of OPAs under different concentrations and types of particles and proposed and elucidated an oil− particle−bacteria coupling mechanism. The depth of particle penetration into oil droplets (13−17 μm) was more than twice that of the nonbacterial group. Oil that remained in the water column and deposited to the bottom decreased from 87% to 49% and increased from 14% to 15% at high/low concentration, respectively. Interestingly, the median droplet diameter showed a negative correlation (R 2 = 0.83) and positive correlation (R 2 = 0.60) at high/low concentration, respectively, with the relative penetration depth first proposed. We further demonstrated that bacteria increased the penetrating depth by a combination of reducing/increasing the interfacial tension, reducing the oil amount (C 17 −C 38 ) in the OPAs, and increasing the particle width. These effects reduced the droplet size and ultimately changed the vertical migration of OPAs. Finally, we provided a simple assessment of the vertical distribution of OPAs in nearshore environments based on experimental data and suggested that the role of bacteria in increasing the depth of particles penetrating into the oil droplets should not be ignored. These findings will broaden the research perspective of marine oil spill migration.

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Natural attenuation of oil in marine environments: A review

Cited by 22 publications

References 277 publications

Synergistic dispersion and biodegradation of oil in seawater based on Janus nanosheets and oil-degrading bacteria

Synergistic dispersion and biodegradation of oil in seawater based on Janus nanosheets and oil-degrading bacteria

Measuring the Fate and Natural Attenuation Potential of a Viscous Marine Fuel on an Artificial Beach Mesocosm

The Role of Bacteria in the Formation and Migration of Oil–Particle Aggregates (OPAs) after Marine Oil Spills and the Associated Mechanism

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