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61,005 resultsShowing papers similar to Atmospheric Microplastics: Inputs and Outputs
ClearAtmospheric 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.
Microplastics Aloft: A comprehensive exploration of sources, transport, variations, interactions and their implications on human health in the atmospheric realm
This review summarizes research on airborne microplastics and finds that indoor environments typically contain far more microplastic particles than outdoor air -- up to 760,000 particles per square meter per day indoors versus a maximum of about 1,159 outdoors. Sources include synthetic clothing, plastic manufacturing, and even ocean spray. Inhaled microplastics can reach deep into the lungs and potentially enter the bloodstream, raising concerns about respiratory and cardiovascular health effects.
The Pollution of Atmospheric Microplastics and Their Potential Risks to Humans
This review summarizes what is known about airborne microplastics—tiny plastic particles floating in the air we breathe—including their sources, distribution, and potential health risks. Fibers are the most common form found in air, and inhalation is an important but underestimated route of human microplastic exposure.
A Review of the Sources, Environmental Behaviours and Human Health of Atmospheric Microplastics
This review examined sources, environmental behaviors, and human health impacts of atmospheric microplastics, distinguishing indoor from outdoor MP exposure and summarizing evidence on how airborne MPs are emitted, transported, transformed, and inhaled.
Global atmospheric distribution of microplastics with evidence of low oceanic emissions
This study used atmospheric modeling to estimate the global distribution of airborne microplastics, finding that land-based sources like roads, agriculture, and cities contribute far more to atmospheric microplastics than ocean emissions. The model, validated against real-world observations, suggests that ocean contributions are about 10,000 times lower than previously estimated. Understanding where airborne microplastics come from is important because inhalation is a major route of human exposure.
Occurrence of Microplastics in the Atmosphere: An Overview on Sources, Analytical Challenges, and Human Health Effects
This review examines microplastic pollution in the atmosphere, covering both indoor and outdoor sources and the challenges of measuring airborne particles. Researchers found that indoor environments, where people spend most of their time, can have particularly high concentrations of microplastics from synthetic textiles and household items. The study highlights that inhaling airborne microplastics is an important but under-studied route of human exposure.
The Peril of Plastics: Atmospheric Microplastics in Outdoor, Indoor, and Remote Environments
This review surveys the current state of knowledge about microplastics suspended in the atmosphere, covering outdoor, indoor, and remote environments. Researchers found that airborne microplastics are far more widespread than previously recognized, with fibers from textiles and vehicle tire wear being major sources. The study highlights that atmospheric transport can carry microplastics to even the most remote locations on Earth, and that inhaling these particles poses potential health concerns.
Global microplastic emission and deposition fluxes at the ocean-atmosphere interface
This study used bottom-up modeling to estimate how microplastics move between the ocean surface and the atmosphere at a global scale. The findings suggest ocean surfaces are both a source and sink for airborne microplastics, helping explain how plastics cycle through Earth's major environmental systems.
Microplastics in air: a hidden public health threat
This short review explains how microplastics become airborne from land, ocean, and industrial sources and are transported globally through the atmosphere, potentially entering the human body through inhalation. The author frames airborne microplastics as a hidden public health threat warranting greater scientific and regulatory attention.
Status and prospects of atmospheric microplastics: A review of methods, occurrence, composition, source and health risks
This review summarized the sampling methods, occurrence, composition, sources, and health risks of atmospheric microplastics. Researchers found that airborne microplastics are detected both indoors and outdoors, with fibers being the most common shape, and that inhalation represents an important but understudied exposure pathway. The study suggests that atmospheric transport plays a significant role in the global distribution of microplastic pollution.
Atmospheric microplastic emissions from land and ocean
Researchers quantified atmospheric microplastic emissions from both land and ocean surfaces, finding that re-suspension of deposited plastics from land and sea spray from the ocean are significant sources of airborne particles. The results highlight that the ocean is not just a sink but also a source of airborne microplastics.
A systematic review of airborne microplastics emissions as emerging contaminants in outdoor and indoor air environments
This systematic review compared microplastic levels in indoor and outdoor air around the world. Indoor air often contains more microplastics than outdoor air — largely from synthetic clothing and household items — meaning our homes and workplaces may be significant sources of daily microplastic exposure.
Global inventory of atmospheric fibrous microplastics input into the ocean: An implication from the indoor origin
Researchers quantified atmospheric fibrous microplastic transport from land to ocean in the Asia-Pacific region using data from nine ocean cruises between 2018 and 2019, developing a global inventory of atmospheric microplastic input into marine environments. The study concluded that atmospheric deposition is a significant and previously underestimated pathway for inland microplastics to reach the ocean.
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.
Microplastics in the urban atmosphere: Sources, occurrences, distribution, and potential health implications
This review summarizes research on airborne microplastics in cities, finding that indoor sources like textiles and outdoor sources like traffic-related plastic particles are major contributors. Microplastic concentrations in urban air can be significant, especially in densely populated areas, and people can inhale these particles daily. The health implications of breathing in microplastics are still being studied, but early evidence suggests they may cause lung inflammation and other respiratory problems.
Atmospheric Microplastics and Human Health: Sources, Exposure, and Risks
This review systematically summarizes the sources, distribution, and health implications of atmospheric microplastics in both indoor and outdoor air. The study highlights growing evidence that inhaled microplastics can enter the human body and pose potential risks to the respiratory system, while identifying key limitations and uncertainties in current exposure assessment methods.
Atmospheric microplastic emissions from land and ocean
Researchers compiled global data on airborne microplastics and found that fewer particles enter the atmosphere than previously estimated, with land-based sources producing far more particles by number than ocean sources. Concentrations over land were 27 times higher than over the ocean. This study helps clarify how much microplastic people breathe in and shows that urban and land-based environments are the primary sources of airborne microplastic exposure.
First overview of microplastics in indoor and outdoor air
This study provided one of the first comprehensive overviews of microplastic contamination in both indoor and outdoor air, establishing that microplastics are airborne and that indoor environments may have higher concentrations than outdoors due to synthetic materials and textiles. The findings raised new concerns about inhalation as a pathway for human microplastic exposure.
Ocean emission of microplastic
Researchers built a model showing that ocean waves and bursting bubbles can launch microplastics from seawater into the air, estimating that roughly 0.1 million metric tons of microplastic may be emitted from the ocean surface each year. These airborne microplastics can then be carried by wind over land, where they may be inhaled by people. The study reveals an important and previously underappreciated pathway by which ocean microplastic pollution becomes an air quality and human health concern.
Airborne microplastics: Occurrence, sources, fate, risks and mitigation
This review compiles findings from over 140 studies on airborne microplastics, covering their sources, distribution, and health risks in both indoor and outdoor environments. Researchers found that indoor environments often have higher microplastic concentrations than outdoor air, with textiles and building materials being major sources. The study highlights growing evidence that inhaled microplastics may pose respiratory health risks and calls for standardized measurement methods.
There's something in the air: A review of sources, prevalence and behaviour of microplastics in the atmosphere
This review compiled data from 124 studies to provide a comprehensive picture of microplastics in the atmosphere, including ambient air, deposited particles, dust, and snow. Researchers found microplastics are widespread in the air we breathe, with fibers being the most common shape detected. The study suggests that atmospheric transport is an important but understudied pathway for spreading microplastic contamination across environments.
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.
Airborne transboundary microplastics–A Swirl around the globe
This review examined the growing body of research on microplastics found in the atmosphere, including their sources, transport mechanisms, and global distribution. Researchers found that clothing, vehicles, and tire materials are major sources, while polyethylene, polypropylene, and polyester fibers are the most commonly detected airborne microplastics. The study highlights that significant knowledge gaps remain about how microplastics circulate through the atmosphere and cross international boundaries.
Characterization of Microplastics in the Atmosphere
This study measured microplastic concentrations in the atmosphere using active and passive sampling to understand airborne transport pathways. Given that inhaling airborne microplastics is an underappreciated human exposure route, characterizing atmospheric plastic levels and transport is important for estimating total human exposure.