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61,005 resultsShowing papers similar to Microplastic abundance in atmospheric deposition within the Metropolitan area of Hamburg, Germany
ClearSpatial 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.
A 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 at multiple sites, assessing contributions to ecosystem contamination. The results showed that atmospheric deposition is a significant pathway for microplastic redistribution, particularly to remote areas.
Microplastics in the air: Weather and polymer influences on deposition trends across a rural–urban gradient
A study along a rural-to-urban gradient in England found that microplastic deposition rates in the atmosphere ranged from 12 to 500 particles per square meter per day, with rural woodland sites recording the highest overall deposition and weather patterns playing a larger role than urbanization alone. The results challenge the assumption that cities always have the highest airborne microplastic loads.
A 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.
Microplastics in Hamburg's city air
Researchers measured microplastic concentrations in the urban air of Hamburg, Germany, characterizing particle types and sizes from atmospheric samples to assess inhalation exposure in a major European city. Microplastics were detected throughout Hamburg's city air, reflecting multiple urban emission sources and confirming inhalation as a relevant exposure route for city residents.
Outdoor Atmospheric Microplastics within the Humber Region (United Kingdom): Quantification and Chemical Characterisation of Deposited Particles Present
Researchers measured atmospheric microplastic deposition at an urban site in the Humber region of the United Kingdom over 13 months. They found a mean deposition rate of approximately 3,055 particles per square meter per day, predominantly polyethylene and nylon film-shaped particles, with no clear relationship between rainfall and deposition levels. The study also characterized microplastics across five urbanized locations, finding petroleum resin particles more prevalent in industrial and roadside zones.
Airborne microplastic concentrations and deposition across the Weser River catchment
Researchers measured airborne microplastic concentrations and deposition rates across the Weser River catchment in Germany, sampling urban, suburban, and rural locations. They found that microplastics were present in the atmosphere at all sites, with higher concentrations near wastewater treatment plants and urban areas. The study estimates that atmospheric deposition is a meaningful pathway for microplastic contamination of river systems.
Atmospheric deposition of microplastics in urban, rural, forest environments: A case study of Thulamela Local Municipality
Researchers measured airborne microplastic deposition across urban, rural, and forest areas in South Africa and found microplastics falling from the sky everywhere, with urban areas receiving the highest amounts at about 356 particles per square meter per day. This means people are continuously exposed to microplastics through the air they breathe, even in relatively remote locations.
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.
Microplastics in Hamburg's city air
Researchers characterized airborne microplastic particles in Hamburg's urban air, measuring concentrations, polymer types, and size distributions to assess inhalation exposure. The study confirmed that urban air contains a diverse range of microplastic types, with fibers and fragments as the dominant morphotypes.
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.
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.
The deposition of atmospheric microplastics in Jakarta-Indonesia: The coastal urban area
Researchers characterized atmospheric microplastic deposition in Jakarta, Indonesia over 12 months, finding deposition rates of 3-40 particles per square meter per day with fibers as the dominant shape, and higher deposition during the rainy season compared to the dry season.
Atmospheric deposition studies of microplastics in Central Germany
Researchers monitored microplastic particles falling from the air in Central Germany over eight months and detected plastic in all wet deposition (rain) samples and half of dry deposition samples, with polypropylene being the most common type. A deeper Raman analysis revealed that standard detection methods may underestimate actual microplastic air pollution by at least ten times, highlighting a large blind spot in atmospheric monitoring.
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.
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.
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.
First quantification and chemical characterization of atmospheric microplastics observed in Seoul, South Korea
Researchers conducted the first measurement of airborne microplastics across five outdoor sites in Seoul, South Korea, finding plastic particles everywhere from business districts to urban forests. Microplastic levels were higher in areas with more human activity and during weekdays versus weekends. Polypropylene and PET were the most common types, suggesting that everyday plastic products are a major source of airborne microplastic pollution in cities.
Plastic rain—Atmospheric microplastics deposition in urban and peri-urban areas of Patna City, Bihar, India: Distribution, characteristics, transport, and source analysis
Researchers measured microplastic particles falling from the sky in Patna, India, finding nearly 2,000 particles per square meter per day in urban areas. The plastic "rain" was mostly tiny fibers and fragments made of common plastics like PET and polypropylene. This study shows that breathing outdoor air is another way people are exposed to microplastics, especially in cities.
Atmospheric deposition of microplastics in a rural region of North China Plain
Researchers investigated atmospheric microplastic deposition in a rural area of the North China Plain, finding significant quantities of microplastics deposited through both dry and wet pathways, with fibers and polyethylene being the dominant types.
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.
Atmospheric deposition of microplastics in the megalopolis (Shanghai) during rainy season: Characteristics, influence factors, and source
Researchers characterized atmospheric microplastic deposition in Shanghai during the rainy season, finding that rainfall events significantly increased deposition rates, with fibers dominating and sources linked to both local urban activities and long-range atmospheric transport.
Atmospheric Microplastic in the Arctic and Mainland Norway; comparing urban and remote locations
Researchers deployed passive and active air samplers at two remote stations, Ny Alesund in the High Norwegian Arctic and Birkenes on mainland Norway, to compare atmospheric microplastic concentrations, compositions, and deposition rates between urban and remote locations to evaluate the magnitude of long-range atmospheric MP transport to the Arctic.
Microplastics and particulate matter: assessment of atmospheric pollution in the Region of Hortênsias, Brazil
Researchers measured microplastic concentrations alongside particulate matter in the atmosphere of an urban area, characterizing the size, morphology, and polymer composition of airborne plastic particles and assessing the contribution of different anthropogenic sources to atmospheric MP pollution.