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61,005 resultsShowing papers similar to Investigating microplastic flux rates in icelandic lakes: Linking atmospheric deposition to precipitation patterns
ClearInvestigating microplastic flux rates in icelandic lakes: Linking atmospheric deposition to precipitation patterns
This study measured microplastic deposition rates into Icelandic lakes and linked the patterns to local precipitation, suggesting that rainfall and snowfall are key mechanisms driving plastic particles out of the atmosphere and into freshwater. Iceland's remote location makes these findings particularly striking, demonstrating that atmospheric microplastic transport reaches even sparsely populated sub-Arctic regions.
Atmospheric Deposition Of Microplastics Recorded In Icelandic Lake Sediments: Estimating Microplastic Fluxes Using Short Sediment Cores
Researchers sampled sediment cores from six remote Icelandic crater lakes to estimate atmospheric microplastic deposition flux rates, finding that Iceland's position within major oceanic currents and weather patterns makes it a sentinel site for studying long-range Arctic-bound microplastic transport.
Atmospheric deposition drives microplastic contamination in remote lakes of Newfoundland, Canada
Researchers found significant microplastic contamination in lake sediments across remote areas of Newfoundland, Canada, with concentrations between 6,000 and 24,000 particles per kilogram. Because the lakes are in sparsely populated areas with minimal water inflow, the pollution is attributed to atmospheric transport via wind, rain, and snow from distant sources. The study demonstrates that microplastics can travel through the atmosphere and accumulate even in isolated, high-latitude freshwater environments.
The Fate of Microplastics in Rural Headwater Lake Catchments
Researchers quantified microplastic fluxes over 12 months in three rural headwater lake catchments in Ontario, Canada, using a novel particle balance approach. They found that atmospheric deposition was the dominant source of microplastics entering these remote lakes, and they provided the first observation-based estimates of microplastic residence time in freshwater lakes. The study reveals that even rural areas far from urban centers receive significant microplastic inputs from the atmosphere.
Investigating microplastic transport in remote ecosystems: High-mountain lakes of the western alps
Researchers investigated microplastic transport to and accumulation in high-mountain lakes in remote ecosystems, using atmospheric deposition measurements and lake sediment analysis. Even at elevations above human habitation, microplastics were deposited from the atmosphere, with concentrations tracking regional air circulation patterns.
Investigating microplastic transport in remote ecosystems: High-mountain lakes of the western alps
Researchers investigated microplastic transport in high-mountain lakes in a remote region, examining how atmospheric deposition and watershed processes deliver plastic particles to these sensitive and isolated ecosystems. Microplastics were detected in lake water and sediments, confirming that long-range atmospheric transport is a significant delivery pathway to remote alpine environments.
High-levels of microplastic pollution in a large, remote, mountain lake
Researchers discovered high levels of microplastic pollution in a large, remote mountain lake, finding concentrations comparable to lakes in densely populated areas, suggesting that atmospheric deposition can deliver substantial microplastic loads to even isolated environments.
Assessing microplastic contamination in Icelandic soils: Insights from pristine, agricultural, and urban environments
Researchers assessed microplastic contamination in Icelandic soils including pristine, agricultural, and urban sites to determine whether long-range atmospheric deposition reaches this sparsely populated island. Microplastics were detected across all site types, confirming atmospheric transport as a pathway to remote northern ecosystems.
Assessing microplastic contamination in Icelandic soils: Insights from pristine, agricultural, and urban environments
Researchers analyzed microplastic accumulation in pristine and remote soils in Iceland to test whether long-range atmospheric transport deposits microplastics in undisturbed environments. Microplastics were detected in Icelandic soils, confirming that atmospheric deposition reaches isolated environments far from plastic sources.
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.
Remote alpine lakes and microplastic contamination: Insights from sediment analysis of lake cadagno
Researchers investigated microplastic contamination in sediments from remote alpine lakes, environments that serve as sensitive indicators of long-range atmospheric transport and global environmental change. Microplastics were detected even in these isolated high-altitude lakes, confirming that atmospheric deposition delivers plastic particles to ecosystems far from direct human activity.
Microplastics captured by snowfall: A study in Northern Iran
Fresh snow samples collected from 29 locations across urban and remote regions of northern Iran were analyzed for microplastics after a period of sustained snowfall, finding plastic particles at concentrations ranging from undetected to high levels depending on location. The study demonstrates that snowfall acts as an atmospheric scavenging mechanism for airborne microplastics and that urban areas show substantially higher deposition than remote sites.
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.
Latitudinal patterns of microplastic contamination in remote areas
Researchers analyzed microplastic contamination in glaciers across different latitudes worldwide and found that concentrations were highest near population centers and in regions with greater atmospheric transport. The study revealed clear patterns showing that microplastics travel long distances through the air and accumulate even in remote, icy environments far from human activity. These findings matter because glaciers feed into freshwater systems used for drinking water, meaning this contamination eventually reaches human populations.
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.
Analysis of microplastic sources in Wuliangsuhai Lake, China: Implications to microplastic deposition in cold, arid region lakes
Researchers used trajectory modeling, receptor modeling, and field monitoring to characterize atmospheric microplastic deposition into a cold, arid lake in Inner Mongolia, finding that spring deposition was highest, fiber-type polyethylene terephthalate and polyethylene particles dominated, and urban sources including housing, transportation, and agriculture were the main contributors — adding tons of microplastics to the lake annually via air.
Evidence of microplastics in remote alpine lakes of the eLTER network
Researchers detected microplastics in two remote alpine lakes of the European Long-Term Ecological Research (eLTER) network, providing the first evidence of MP contamination in these high-altitude freshwater systems. Atmospheric deposition was identified as the likely transport pathway to these geographically isolated ecosystems.
A Multicompartment Assessment of Microplastic Contamination in Semi-remote Boreal Lakes
Researchers assessed microplastic contamination across multiple compartments of semi-remote boreal lakes in northwestern Ontario, Canada. The study found that microplastics were present even in these relatively isolated oligotrophic lakes, with fibers being the dominant particle type, suggesting atmospheric deposition and limited local sources as likely pathways.
Microplastics in Precipitation: Analyzing Altitudinal Influence on Atmospheric Deposition Patterns
Researchers found an inverse relationship between altitude and microplastic deposition in Central Himalayan precipitation, collecting rainfall and snowfall across eight sites from 445 m to 3,378 m elevation and characterizing microplastics by concentration, size distribution, and polymer composition.
Assessment of Prevalence and Heterogeneity of Meso- and Microplastic Pollution in Icelandic Waters
Surface water sampling around Iceland found mesoplastics and microplastics at all six coastal sites, with nearshore locations near populated areas showing higher concentrations, suggesting local human activity contributes to plastic pollution even in remote subarctic waters.
Rainfall is a significant environmental factor of microplastic pollution in inland waters
Researchers investigated the role of rainfall as a driver of microplastic pollution in inland waters, a factor that had been largely overlooked in previous studies focused on human activities. The study found that rainfall is a significant environmental factor influencing microplastic distribution in freshwater systems, suggesting that non-anthropogenic processes play an important role in how microplastics move through watersheds.
Remote alpine lakes and microplastic contamination: Insights from sediment analysis of lake cadagno
Researchers analyzed sediment cores from remote alpine lakes for microplastic contamination, finding evidence of long-range atmospheric transport delivering particles to these isolated high-altitude ecosystems. Microplastic concentrations in the sediments increased over time, mirroring historical trends in global plastic production.
Importance of atmospheric transport for microplastics deposited in remote areas
This study highlights atmospheric transport as a significant and underappreciated pathway for depositing micro- and nanoplastics in remote areas including mountain regions and polar zones far from plastic sources. Airborne plastic particles can travel thousands of kilometers before being deposited, explaining the presence of microplastics in seemingly pristine remote environments.
Atmospheric microplastics in the Arctic Region: An examination of deposited and suspended atmospheric microplastics in Ny-Ålesund, Svalbard
Researchers measured atmospheric microplastic deposition and suspension in Ny-Alesund, Svalbard, finding microplastics in both deposited and airborne samples from this remote High Arctic location and characterizing dominant polymer types and potential source regions.