Particle resuspension: Challenges and perspectives for future models

Henry, Christophe; Minier, Jean-Pierre; Brambilla, Sara

doi:10.1016/j.physrep.2022.12.005

Cited by 25 publications

(5 citation statements)

References 290 publications

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“…Second, microplastic particles with diameters smaller than 20 µm can be remobilized by strong winds from surfaces and tra c abrasion that can enhance resuspension 52 , with an intensity that is less than 60% of the deposition 53 . In our simulations, we ignore resuspension since this contribution is considerably smaller than the error associated with the primary emission rates 54 .…”

Section: Discussionmentioning

confidence: 99%

Microplastics in the Atmosphere: A Global Perspective

Brasseur

Wang

Walters

et al. 2023

Preprint

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Microplastic particles have been detected in various parts of the atmosphere. Earlier studies have attributed their primary source to the oceans. However, recent laboratory studies suggest that ocean emission fluxes are considerably lower than previously assumed, and specifically that they are lower than the sources related to transportation on land. Here, we perform model simulations of the atmospheric transport and deposition of microplastic particles at the global scale based on bottom-up reduced ocean emissions. We conclude that approximately 124 kilotons of microplastics are suspended in the atmosphere globally, and that 19 million tons/year are deposited on the Earth's surface with only 3 million tons/year being deposited to the oceans. The highest human exposure risk to microplastics is found in densely populated regions. The Arctic and Antarctica are significant receptor regions for microplastic particles with a diameter smaller than 1.5 µm that are transported over long distances.

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Section: Discussionmentioning

confidence: 99%

Microplastics in the Atmosphere: A Global Perspective

Brasseur

Wang

Walters

et al. 2023

Preprint

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“…A recent treatment of the resuspension phenomena is given by Brambilla et al (2017) and Henry et al (2023). Adhesion forces are described by van der Waals interactions, electrostatic forces due to surface charges, and capillary forces (Bowling 1988).…”

Section: Physics and Modeling Of Resuspension-governing Forcesmentioning

confidence: 99%

“…Specifically, the focus laid on the effect of calm wind (quiescent conditions) in the resuspension of radioactive fallout that had deposited onto vast, open areas of soil and foliage that characterized the weapon detonation test sites and the vast open lands surrounding a nuclear power station. Studies continue to shed light on the resuspension phenomena (Henry et al 2023) and apply new data sets to specific conditions (Glen and Pennington 2020).…”

Section: Introductionmentioning

confidence: 99%

A Review of the Resuspension of Radioactively Contaminated Particles by Vehicle and Pedestrian Traffic—Current Theory, Practice, Gaps, and Needs

Kaminski,

Daiyega,

Magnuson

2024

Health Physics

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The resuspension of radioactively contaminated particles in a built environment, such as from urban surfaces like foliage, building exteriors, and roadways, is described empirically by current plume and dosimetry models used for hazard assessment and long-term risk purposes. When applying these models to radiological contamination emergencies affecting urban areas, the accuracy of the results for recent contamination deposition is impacted in two main ways. First, the data supporting the underlying resuspension equations was acquired for open, quiescent conditions with no vehicle traffic or human activities, so it is not necessarily representative of the urban environment. Second, mechanical disturbance by winds in urban canyons and during emergency operations caused by vehicle traffic and human activities are not directly considered by the equations. Accordingly, plume and dosimetry models allow the user to input certain compensating values, but the models do not necessarily supply users instructions on what values to use. This manuscript reviews the available literature to comprehensively and consistently pool data for resuspension due to mechanically induced resuspension applicable to urban contamination. Because there are few studies that directly measured radioactive resuspension due to vehicles and pedestrians, this review novelly draws on a range of other studies involving non-radioactive particles, ranging from outdoor air pollution emissions to indoor allergen transport. The results lead to tabulated, recommended values for specific conditions in the emergency phase to help users of plume and dosimetry models maintain the conservativeness needed to properly capture the potential radiation dose posed by mechanically induced resuspension. These values are of benefit to model users until better data are available. The results also suggest the types of data that may result in improved plume and dose modeling.

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“…In the simplest scenario, where an individual particle initially sits at rest on a wall surface, resuspension occurs when either the aerodynamic drag force or torque overcomes its adhesive counterpart (Henry & Minier, 2014a;Henry, Minier, & Brambilla, 2023). Wall surfaces are however rarely smooth and wall roughness significantly affects the adhesion force pinning the particle to the substrate (Brambilla & Brown, 2020).…”

Section: State-of-the-art and Current Limitationsmentioning

confidence: 99%

Influence of engineered roughness microstructures on adhesion and turbulent resuspension of microparticles

Banari,

Graebe,

Rudolph

et al. 2023

Journal of Aerosol Science

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Particle resuspension: Challenges and perspectives for future models

Cited by 25 publications

References 290 publications

Microplastics in the Atmosphere: A Global Perspective

Microplastics in the Atmosphere: A Global Perspective

A Review of the Resuspension of Radioactively Contaminated Particles by Vehicle and Pedestrian Traffic—Current Theory, Practice, Gaps, and Needs

Influence of engineered roughness microstructures on adhesion and turbulent resuspension of microparticles

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