The bioavailability of oil droplets trapped in river gravel by hyporheic flows

Adams, Julie E.; Brown, R. Stephen; Hodson, Peter V.

doi:10.1016/j.envpol.2020.116110

Cited by 10 publications

(5 citation statements)

References 47 publications

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“…Up until now, some reliable research conclusions have been obtained on the free-rising motion of single oil droplets, the particle size distribution of oil droplets in the oceanic environment and the vertical diffusion characteristics, but it is still necessary to continue to provide more accurate and applicable models or methods. There is still a big gap in the related research on the movement process of oil spills in inland rivers [149].…”

Section: Discussionmentioning

confidence: 99%

Migration Movements of Accidentally Spilled Oil in Environmental Waters: A Review

Jiang,

Han,

Wang

et al. 2023

Water

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Accidentally spilled oil can cause great harm to the ecological balance of water once it enters the environmental waters. Clarifying its movement behavior and migration law in water has been the focus of environmental hydraulics research. This review starts from the mechanism of the oil spill migration process, and firstly reviews the kinematic characteristics of the smallest moving unit of the oil spill, the individual oil droplet, as well as focusing on several key aspects such as droplet shape, trajectory, terminal velocity and drag coefficient. Subsequently, considering the commonalities and differences between inland riverine and oceanic environments, different aspects of oil droplet collision, coalescence, breakage, particle size distribution, and vertical diffusion are discussed separately. Finally, the current status of research on the migration laws of accidental oil spills in environmental waters is summarized, and feasible future research directions are proposed to address the emerging research problems and research gaps.

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Section: Discussionmentioning

confidence: 99%

Migration Movements of Accidentally Spilled Oil in Environmental Waters: A Review

Jiang,

Han,

Wang

et al. 2023

Water

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“…Some processes have received some attention, such as dissolution, formation, and propagation fate of oil-particle aggregates (OPAs) and adherence of oil to shoreline. However, these studies are based on simplified models, e.g., [22,23,50,51], including simplified assumptions or consider only specified properties of the studied process, e.g., [50,54], are adapted to a specific location/study-case, e.g., [47], or are first-of-kind [7], which limits their findings from being more widely applied.…”

Section: Discussion and Recommendationsmentioning

confidence: 99%

“…Adams et al [7] have assessed whether oil droplets can be carried by hyporheic flows and thus become trapped in the river sediment. A gravel column has been developed to model hyporheic flows, with different types of oil being considered during the experiments in order to determine the potential effect of oil properties on trapping and hydrocarbon dissolution.…”

Section: Applicative and Process-oriented Studiesmentioning

confidence: 99%

“…Even though coastal and offshore oil spills generally receive more public and academic attention [4], oil spills in inland waters tend to occur more frequently [5]. Compared to the offshore oil spills, oil spills occurring in medium and small rivers can potentially have even greater negative environmental impact due to their large spatial distributions, small dilution and dispersion capacities, and high potential for oil droplet formation and interaction with waterborne particulates and sediment [6,7]. Furthermore, as oil spills in rivers often occur near populated areas, they also pose greater risk for public health due to the potential contamination of drinking water sources [8].…”

Section: Introductionmentioning

confidence: 99%

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A Review of River Oil Spill Modeling

Kvočka

Žagar

Banovec

2021

Water

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River oil spills are generally more frequent and pose greater environmental and public health risk than coastal and offshore oil spills. However, the river oil spill research has received a negligible amount of academic attention in the past three decades, while at the same time the coastal and offshore oil spill research has expanded and evolved tremendously. This paper provides the state-of-the-art review of river oil spill modeling and summarizes the developments in the field from 1994 to present. The review has revealed that the majority of the gaps in knowledge still remain. Thus, there is a need for (i) experimental studies in order to develop and validate new models and better understand the main physicochemical processes, (ii) studies on inter-linking of the governing processes, such as hydrodynamics, advection–dispersion, and weathering processes, (iii) adaptation and validation of coastal and offshore oil spill models for applications in riverine environments, and (iv) development of river oil spill remote sensing systems and detection techniques. Finally, there is a need to more actively promote the importance of river oil spill research and modeling in the context of environmental and public health protection, which would form the basis for obtaining more research funding and thus more academic attention.

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“…In the past few decades, several massive oil spill catastrophes have been recorded worldwide, releasing massive amounts of crude oil and condensate into the marine ecosystems in the Gulf of Mexico [26][27][28][29]; Brazilian coast [30]; South Korean coast [31]; Gulf of Oman [32]; Coast of Hong Kong [31]; the coast of France [33,34]. Although oil spills along the shore receive a lot of attention, but oil spills in standard and minor rivers may have a more detrimental impact on the environment due to their wide geographical distributions, low ability to dilute and spread, and interaction with waterborne particles and sediment [28,[35][36][37]. Additionally, the oil spills in rivers usually happen near inhabited areas, which makes them a bigger threat to public health because they could contaminate drinking water sources [38].…”

Section: Introductionmentioning

confidence: 99%

Polycyclic Aromatic Hydrocarbons (PAHs) in aquatic ecosystem exposed to the 2020 Baghjan oil spill in upper Assam, India: Short-term toxicity and ecological risk assessment

Singh,

Negi,

Jacob

et al. 2023

PLoS ONE

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This study focuses on the short-term contamination and associated risks arising from the release of Polycyclic Aromatic Hydrocarbons (PAHs) due to the 2020 Baghjan oil blowout in upper Assam, India. Shortly after the Baghjan oil blowout, samples were collected from water, sediment, and fish species and examined for PAHs contents. The results of the analysis revealed ΣPAHs concentrations ranged between 0.21–691.31 μg L-1 (water); 37.6–395.8 μg Kg-1 (sediment); 104.3–7829.6 μg Kg-1 (fish). The prevalence of 3–4 ring low molecular weight PAHs compounds in water (87.17%), sediment (100%), and fish samples (93.17%) validate the petrogenic source of origin (oil spill). The geographic vicinity of the oil blowout is rich in wildlife; thus, leading to a significant mass mortality of several eco-sensitive species like fish, plants, microbes, reptiles, amphibians, birds and mammals including the Gangetic River dolphin. The initial ecological risk assessment suggested moderate to high-risk values (RQ >1) of majority PAHs concerning fish, daphnia, and algae species. This study highlights the need for recognizing the potential for short-term exposure to local species. To safeguard local ecosystems from potential future environmental disasters, it is imperative for the government to adopt a precautionary strategy.

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The bioavailability of oil droplets trapped in river gravel by hyporheic flows

Cited by 10 publications

References 47 publications

Migration Movements of Accidentally Spilled Oil in Environmental Waters: A Review

Migration Movements of Accidentally Spilled Oil in Environmental Waters: A Review

A Review of River Oil Spill Modeling

Polycyclic Aromatic Hydrocarbons (PAHs) in aquatic ecosystem exposed to the 2020 Baghjan oil spill in upper Assam, India: Short-term toxicity and ecological risk assessment

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