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61,005 resultsShowing papers similar to A preliminary comparison of microplastic type, size, and composition in atmospheric and foliage samples in an urban scenario
ClearA preliminary comparison of microplastic type, size, and composition in atmospheric and foliage samples in an urban scenario
Researchers compared microplastic types, sizes, and polymer compositions in atmospheric dry and wet deposition samples from different settings. The study found that atmospheric deposition is a meaningful pathway for microplastic dispersal, with variation in particle characteristics across sites.
Comparison of microplastic type, size, and composition in atmospheric and foliage samples in an urban scenario
Researchers compared microplastic contamination in outdoor air deposits and on plant leaf surfaces in an urban area and found that both sampling methods detected similar types and sizes of microplastic particles. Fibers were the most common shape found, and polyester and polyethylene were among the most frequently identified polymers. The study suggests that plant foliage could serve as a practical biomonitor for tracking airborne microplastic pollution in cities.
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 microplastic deposition in an urban environment and an evaluation of transport
Researchers measured microplastic deposition in central London and found contamination in all samples, with rates ranging from 575 to 1,008 particles per square meter per day. Fibrous microplastics made up 92% of the particles, and 15 different polymer types were identified. Wind analysis revealed different source areas for fibrous and non-fibrous airborne microplastics, providing the first evidence that the atmosphere is a significant pathway for microplastic pollution in urban areas.
Quantifying Atmospheric Deposition of Microplastics in Urban and Suburban O'ahu
Researchers quantified atmospheric deposition of microplastics across urban and suburban sites on O'ahu, Hawaii, characterising deposition rates and particle composition to assess airborne microplastic transport in a Pacific island environment.
The atmospheric microplastics deposition contributes to microplastic pollution in urban waters
Researchers investigated how atmospheric deposition contributes to microplastic pollution in urban waters. The study found that microplastic deposition fluxes were higher during wet weather than dry weather and showed moderate to strong correlations with atmospheric conditions, demonstrating that airborne microplastic fallout is a meaningful source of contamination in urban water environments.
Foliar retention of atmospheric microplastics: Influence of leaf surface properties and rainfall intensity
Researchers found that leaf surface properties and rainfall intensity significantly influence how much atmospheric microplastics are retained on plant foliage, with leaves near a landfill retaining up to 0.80 items/cm2 and autumn showing the highest seasonal accumulation across five common urban tree species.
Atmospheric deposition of microplastics: a sampling and analytical method including the associated measurement uncertainties
Researchers developed a tailored analytical chain for atmospheric microplastic sampling — including collection, processing, and optical microscopy-based analysis — and applied it to quantify atmospheric deposition of microplastics and assess the atmosphere as a vector of global microplastic distribution.
Spatial distribution of atmospheric microplastics in bulk-deposition of urban and rural environments – A one-year follow-up study in northern Germany
Researchers conducted a year-long study of atmospheric microplastic deposition across urban and rural sites in northern Germany, finding spatial and temporal variation in microplastic fallout patterns that help quantify environmental input rates.
Wet and Dry Deposition Flux Measurements of Atmospheric Microplastic Particles in Central Germany
Researchers measured both wet and dry atmospheric deposition of microplastic particles in central Germany across different weather conditions. The study shows that atmospheric microplastic fallout is a real pathway delivering plastic particles into terrestrial and aquatic environments.
Atmospheric microplastic transport and deposition to urban and pristine tropical locations in Southeast Asia
Researchers measured atmospheric microplastic deposition at urban and pristine sites in Malaysia across two monsoon seasons and found microplastics at all locations, including a remote tropical forest. Deposition rates ranged from 114 to 689 particles per square meter per day, with monsoon wind patterns influencing the transport of particles over long distances. The study demonstrates that atmospheric transport is a significant pathway for spreading microplastic contamination to even remote ecosystems in Southeast Asia.
Evaluating Ecological Impacts and Atmospheric Fate of Microplastics: Ecological Perspectives and Challenges
Researchers review how microplastics spread through the atmosphere via wind and weather before settling into water bodies, soil, and plant life — creating pathways for human exposure through the food chain. The study highlights gaps in analytical methods and calls for standardized, accurate measurement techniques to better understand and address the full ecological threat of airborne microplastic pollution.
Atmospheric deposition of microplastics in shiraz, iran
Researchers measured atmospheric microplastic deposition during successive dry and rainy events over eight consecutive days at six sites in and around Shiraz, Iran, including a remote non-urbanised location. The study found that microplastic abundance and deposition flux increased progressively during dry periods and was similar across urban and remote sites, suggesting widespread atmospheric transport and redistribution of microplastics via rainfall scavenging.
Microplastic abundance in atmospheric deposition within the Metropolitan area of Hamburg, Germany
Researchers measured atmospheric microplastic deposition across urban and rural sites in the Hamburg metropolitan region over 12 weeks, finding a mean of 275 particles per m² per day with polyethylene fragments dominant, and unexpectedly higher concentrations at rural sites under conifer forest canopy than at urban locations, suggesting forest combing effects and agricultural inputs as significant deposition drivers.
Synthetic fibers in atmospheric fallout: A source of microplastics in the environment?
Researchers found synthetic fibers in atmospheric fallout collected across a study region, demonstrating that airborne transport is a pathway for microplastic fiber deposition even in areas distant from direct plastic sources.
Characteristic of microplastics in the atmospheric fallout from Dongguan city, China: preliminary research and first evidence
Researchers characterized microplastics in atmospheric fallout collected in Dongguan City, China, finding that airborne microplastics are deposited daily and that urban areas generate significant atmospheric microplastic emissions.
Atmospheric microplastics in the Northwestern Pacific Ocean: Distribution, source, and deposition
Researchers documented atmospheric microplastic distribution in the Northwestern Pacific Ocean, finding abundances ranging from 0.0046 to higher levels and identifying sources and deposition patterns that contribute to marine microplastic pollution from airborne transport.
Characteristics, sources and potential ecological risk of atmospheric microplastics in Lhasa city
Researchers characterized atmospheric microplastics collected at a monitoring site, identifying their sources, size distribution, polymer composition, and potential ecological risks from aerial deposition to terrestrial and aquatic ecosystems.
Comprehensive Analysis of Atmospheric Microplastic Deposition: Insights from North Wales, UK, and Global Collaborations.
This study conducted extensive atmospheric microplastic deposition monitoring in North Wales, UK, combining local data with global collaborations to characterize deposition rates, polymer types, and seasonal patterns, finding measurable microplastic fallout even in rural areas.
Regional and climatic variations in atmospheric microplastic deposition
Researchers simultaneously quantified atmospheric dry deposition of microplastics across nine Iranian cities with different climates over a seven-day period, finding deposition rates ranging from under 5 to over 100 MP/m²/hr dominated by fibres of polyethylene, PET, polypropylene, polystyrene, and nylon, with significant regional and climatic variation.
Regional and climatic variations in atmospheric microplastic deposition: A study throughout Iran
Dry deposition of atmospheric microplastics was measured simultaneously across nine Iranian cities with different climates and populations over one week, finding deposition rates from 5 to over 100 particles/m²/day, with population density and wind conditions as key drivers.
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.
A nationwide monitoring of atmospheric microplastic deposition
Researchers conducted a year-long nationwide monitoring of atmospheric microplastic deposition across ten urban areas in Spain with varying population sizes, economic activities, and climates. The study provides a systematic quantification of airborne microplastic fallout, contributing to understanding the role of the atmosphere in the transport and distribution of microplastic pollution.
Characteristics, sources and influencing factors of atmospheric deposition of microplastics in three different ecosystems of Beijing, China
Researchers characterized atmospheric microplastic deposition across forest, agricultural, and residential ecosystems in Beijing, finding that residential areas had the highest deposition fluxes, with PET and rayon fibers being the dominant types.