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Papers
20 resultsShowing papers similar to Comment on egusphere-2023-1025
ClearComment on egusphere-2023-1025
This comment paper examines the atmospheric transport of microplastics as particulate matter, comparing it to the well-studied transport of mineral dust. Understanding how air currents carry microplastics to remote environments helps explain their ubiquitous presence even in pristine ecosystems far from human activity.
Comment on egusphere-2023-1025
This comment discusses a study on atmospheric transport of microplastic particulate matter, noting that long-range atmospheric dispersal means microplastics reach virtually every environment on Earth, including remote areas far from human settlements. Understanding atmospheric transport mechanisms is key to modeling global microplastic deposition.
Comment on egusphere-2025-605
Researchers examined the atmospheric transport of microplastics, focusing on how their settling behavior — determined by physical properties including size and shape — governs the dispersion of large microplastic particles through the atmosphere and their deposition across environments.
Is transport of microplastics different from that of mineral dust? Results from idealized wind tunnel studies
Researchers conducted wind tunnel experiments to examine the detachment and transport behavior of microplastics ranging from 38 to 125 um in diameter from idealized substrates, comparing their aerodynamic behavior to the well-established literature on mineral dust transport. The study identified key differences in microplastic detachment mechanisms relevant to understanding long-range atmospheric dispersal of plastic particles.
A Review of Atmospheric Micro/Nanoplastics: Insights into Source and Fate for Modelling Studies
This review synthesizes current knowledge about how micro- and nanoplastics move through the atmosphere, covering their sources, transport mechanisms, and eventual deposition. Researchers found that atmospheric transport can carry these particles over long distances quickly, making it a major pathway for global plastic pollution spread. The study identifies key knowledge gaps needed for developing accurate models of airborne microplastic behavior.
Comment on egusphere-2025-1575
This review examines a global climate model implementation of airborne microplastics as an atmospheric aerosol species, addressing their absence from current climate models despite recognized air quality and climate impacts. The comment evaluates the modeling approach for representing microplastic transport, deposition, and radiative effects in the atmosphere.
Comment on egusphere-2025-1575
Researchers developed a representation of airborne microplastics within the UK Earth System Model (UKESM1.1), adding both fragment and fibre types across multiple aerosol size modes that interact with existing deposition and ageing processes. Simulated microplastics showed higher concentrations over land but were transported to remote regions including Antarctica, highlighting their potential air quality and climate relevance.
A mechanistic approach to evaluating atmospheric deposition of micro- and nanoplastic particles
This study developed a theoretical framework to better understand how microplastic and nanoplastic particles move through the atmosphere and deposit onto land and water surfaces via wet and dry deposition. By drawing on knowledge from how other aerosols like mineral dust behave, the researchers identified key physical processes — including particle size, shape, and density — that govern how far microplastics travel and where they land. The work is important for modeling the global spread of microplastic pollution, including to remote regions far from pollution sources.
Dynamics of airborne microplastics, appraisal and distributional behaviour in atmosphere; a review
This review explores the sources, distribution, and behaviour of airborne microplastics in the terrestrial environment. Researchers summarize how factors like size, density, and atmospheric conditions influence microplastic transport and concentration in air. The study highlights that airborne exposure represents a significant and relatively understudied route of human microplastic intake, with particles capable of carrying organic pollutants that bioaccumulate through food webs.
Comment on egusphere-2025-1821
This is a peer review comment on an atmospheric microplastics preprint examining source profiles and emission factors for plastic-derived particles from various pollution sources, contributing to the open review process for the manuscript.
Atmospheric Microplastics: Inputs and Outputs
Researchers examined how microplastics enter and move through the atmosphere, finding that up to 8.6 megatons per year may be suspended in air above the oceans alone. The particles are launched into the air from ocean spray and land-based sources, then distributed by wind before returning to Earth through rain and dry deposition. The study highlights that atmospheric transport is a major pathway for spreading microplastic contamination to even the most remote regions of the planet.
Comment on egusphere-2025-1821
This peer review comment on an atmospheric microplastics study characterizes source profiles and emission factors for eight polymer types and three plasticizer classes from plastic burning, fruit bag burning, road traffic, agricultural film, and livestock breeding sources.
Atmospheric transport dynamics of microplastic fibres
Researchers examined the atmospheric transport dynamics of microplastic fibres within boundary layer flows, comparing their motion to mineral grain transport and finding key differences in behaviour that have important implications for modelling the long-range atmospheric dispersal of microplastics to remote and rural locations.
Microplastics ride the atmosphere
Research confirms that microplastic particles are transported through the atmosphere over long distances, depositing in remote areas including the Arctic and high mountains. Atmospheric transport is now recognized as a major pathway spreading microplastic contamination to virtually every part of the planet.
Microplastics in the Atmosphere: A Global Perspective
This global modeling study found that atmospheric microplastic sources are dominated by land-based transport rather than ocean emissions, challenging earlier assumptions and suggesting that road traffic and other terrestrial activities are the primary drivers of microplastic particle distribution in the atmosphere.
Comment on egusphere-2025-1821
This is a peer review comment on an atmospheric microplastics preprint studying MP emission sources, contributing to the open peer review process for the study.
Is atmospheric pathway a significant contributor to microplastics in the marine environment?
Researchers reviewed evidence for atmospheric transport of microplastics to and from marine environments, finding that wind-driven processes like sand storms, bubble bursts, and sea spray can eject microplastics from ocean surfaces into aerosols, making the atmosphere a significant but understudied pathway in the marine microplastic cycle.
A Comparative Examination of Atmospheric Models for Studying Airborne Micro- and Nanoplastic Pollution
This review compares existing atmospheric transport models for micro- and nanoplastics, examining how different modeling frameworks handle particle emission, transport, deposition, and fate. The authors find that large uncertainties remain due to poorly constrained emission inventories and limited atmospheric measurement data, and identify priority gaps for improving model accuracy.
Distribution and transport of atmospheric microplastics and the environmental impacts: A review
This review examines the distribution, transport, and environmental impacts of atmospheric microplastics, synthesizing evidence that airborne plastics are found globally from urban centers to remote polar regions. The authors identify deposition via precipitation as a major pathway by which atmospheric microplastics contaminate soil and water surfaces.
Atmospheric Micro and Nanoplastics: An Enormous Microscopic Problem
This review examined atmospheric micro- and nanoplastic pollution, synthesizing evidence that plastic particles are suspended, transported, and deposited globally through atmospheric pathways, concluding that air represents a major but understudied route of human exposure and environmental dispersal requiring integration into plastic pollution models.