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61,005 resultsShowing papers similar to Vi nhựa được phát hiện trong các đám mây trên đỉnh núi Phú Sĩ và Oyama Nhật Bản
ClearPhát hiện vi nhựa trong đám mây trên đỉnh núi Phú Sĩ và Oyama
This Vietnamese science communication article reports on the same study as paper 37981 — finding microplastics in clouds around Mount Fuji and Mount Oyama at high altitude. The discovery reinforces that atmospheric transport deposits microplastics through precipitation even in remote, elevated environments.
Researchers find microplastics in clouds
Scientists found microplastics in cloud water collected from two Japanese mountains, identifying nine types of plastic particles at concentrations of 7-14 pieces per liter. This discovery suggests microplastics may travel long distances through the atmosphere via clouds, potentially spreading pollution far from its original sources.
Airborne hydrophilic microplastics in cloud water at high altitudes and their role in cloud formation
Researchers collected cloud water from mountain summits in Japan at altitudes up to 3,776 meters and found microplastics in every sample, including common types like polyethylene and polypropylene. Many of the particles showed signs of degradation and contained water-attracting chemical groups, suggesting they could influence cloud formation by acting as condensation nuclei. The study raises the possibility that airborne microplastics may be affecting weather patterns and climate at a global scale.
Origins and ecological risk of atmospheric microplastics at a remote background site in Japan
Atmospheric microplastics collected at a high-altitude site were traced to both local and long-range transport origins, revealing the broad geographical spread of airborne plastic particles. The ecological risk assessment found potential impacts on vulnerable high-elevation ecosystems far from pollution sources.
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.
Microplastics in glaciers of the Tibetan Plateau: Evidence for the long-range transport of microplastics
Researchers discovered microplastics in glaciers on the Tibetan Plateau, one of the most remote regions on Earth. The presence of plastic particles at such high altitudes and far from population centers provides strong evidence that microplastics can travel long distances through the atmosphere, making this a truly global pollution problem.
A review of microplastics pollution and its remediation methods: Current scenario and future aspects
Researchers measured microplastic concentrations in atmospheric deposition at remote mountain sites in the Pyrenees, detecting an average of 365 particles per square meter per day. The findings confirm long-range atmospheric transport of microplastics far from pollution sources.
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.
Elevated wet deposition of micro- and nanoplastics in remote mountains driven by free tropospheric transport
Researchers measured micro- and nanoplastic (MNP) concentrations in rainfall at a remote high-elevation mountain site in southern China, finding concentrations nearly three times higher than at a nearby urban low-altitude site, demonstrating that the free troposphere acts as a long-range transport pathway that delivers significant plastic loads to pristine environments.
Evidence of free tropospheric and long-range transport of microplastic at Pic du Midi Observatory
Researchers found microplastic particles in the free troposphere at nearly 2,900 meters elevation at Pic du Midi Observatory, with air trajectory modeling showing intercontinental and trans-oceanic transport, demonstrating that microplastics can travel vast distances through the upper atmosphere.
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.
Airborne microplastics in urban, rural and wildland environments on the Tibetan Plateau
Researchers measured airborne microplastic concentrations across urban, rural, and remote wildland sites on the Tibetan Plateau and found microplastics present at all locations, even in pristine high-altitude environments. Urban areas had the highest concentrations, but the presence of microplastics in remote wilderness areas demonstrates long-range atmospheric transport. The study provides some of the first data on airborne microplastic pollution in one of the world's most isolated high-mountain regions.
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.
Plastics in Upper Vicdessos - Bridging the gapS for a better understanding of atmospheric microplastics in mountain environments (PVC#2)
Researchers investigated atmospheric microplastic deposition in the upper Vicdessos mountain environment of the French Pyrenees, aiming to bridge knowledge gaps about microplastic transport and accumulation in remote montane areas. The study contributed field data toward better understanding the atmospheric pathways by which microplastics reach high-altitude environments far from direct pollution sources.
Characterization of Microplastics in Clouds over Eastern China
Researchers collected cloud water samples from a mountain in eastern China and found an average of 463 microplastic particles per liter, with 60% smaller than 100 micrometers. The study found that surface roughening from photochemical aging likely increased the microplastics' ability to adsorb toxic metals such as lead and mercury. Evidence indicates that airborne microplastics may influence atmospheric metal cycles and cloud formation processes.
Nanoplastics transport to the remote, high-altitude Alps
Researchers measured nanoplastic concentrations in snow at a remote Alpine observatory over 3,100 meters above sea level, finding an average of 46.5 nanograms per milliliter of melted snow. The dominant plastic types detected were polypropylene and polyethylene terephthalate, with air transport modeling tracing their origins to European urban areas. The study demonstrates that nanoplastics can travel long distances through the atmosphere and accumulate even in pristine high-altitude environments.
Preliminary assessment on the microplastic contamination in the atmospheric fallout in the Phuoc Hiep landfill, Cu Chi, Ho Chi Minh city
Researchers collected atmospheric fallout near a landfill in Ho Chi Minh City, Vietnam and found microplastics present, with abundances comparable to studies from developed countries. The study provides early evidence of airborne microplastic deposition near waste sites in developing countries, where plastic waste management is often inadequate.
Microplastic pollution in mountain terrains and foothills: A review on source, extraction, and distribution of microplastics in remote areas
This review examines microplastic pollution in mountain terrains and foothills, finding that atmospheric transport and tourism are major sources, with snow samples containing the highest concentrations compared to streams or ice cores.
Fine microplastics and nanoplastics in particulate matter samples from a high alpine environment
This study detected fine microplastics and nanoplastics in atmospheric particulate matter collected from a high alpine site in the Alps. The findings confirm that even remote mountain environments receive plastic pollution through the atmosphere, adding to evidence of global airborne plastic transport.
Atmospheric deposition of microplastics in an urban conglomerate near to the foothills of Indian Himalayas: Investigating the quantity, chemical character, possible sources and transport mechanisms
Scientists measured microplastic fallout from the air near the foothills of the Indian Himalayas and found an average of over 2,200 particles landing per square meter per day. Levels spiked during the Diwali festival, suggesting that human activities significantly increase airborne microplastic pollution. The findings show that even areas near remote mountain regions receive substantial microplastic deposits from the atmosphere, which people in those communities inhale.
Microplastics in snow of a high mountain national park: El Teide, Tenerife (Canary Islands, Spain)
Researchers collected 63 snow samples from El Teide National Park in Tenerife, a high-altitude site over 2,000 meters above sea level, and found microplastics present in the snow. The study compared samples from accessible tourist areas with remote locations, helping to distinguish between local human activity and long-distance atmospheric transport as sources of contamination. The findings demonstrate that microplastics can reach even remote mountain environments through the atmosphere.
Remote Mountainous Area Inevitably Becomes Temporal Sink for Microplastics Driven by Atmospheric Transport
A 13-month study of an uninhabited mountainous area in China found microplastics in the air at respirable sizes year-round, with 15 different polymer types detected. Atmospheric modeling traced the sources to populated areas hundreds of kilometers away, showing that wind can carry microplastics to even the most remote locations. The findings mean that virtually no place on Earth is free from airborne microplastic exposure.
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.
Microplastic pollution characteristics and its future perspectives in the Tibetan Plateau
Researchers reviewed microplastic pollution on the Tibetan Plateau, one of the most remote places on Earth, and found plastic particles in rivers, lakes, soil, snow, and even the atmosphere near Mount Everest. While concentrations are lower than in populated areas, the presence of microplastics in such a remote region shows how far these pollutants can travel through air and water currents. The findings underscore that microplastic contamination is truly a global problem with no pristine environments left untouched.