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20 resultsShowing papers similar to Microplastic pollution in deep-sea sediments
ClearMicroplastic pollution in deep-sea sediments and organisms of the Western Pacific Ocean
Researchers collected deep-sea sediment and organism samples from multiple sites in the western Pacific Ocean and found microplastics at all locations sampled, with depth, distance from land, and current patterns influencing accumulation, confirming the western Pacific deep sea as a significant microplastic sink.
Deep Sea Microplastic Pollution Extends Out to Sediments in the Northeast Atlantic Ocean Margins
Researchers surveyed deep-sea sediments across four areas of the Northeast Atlantic and detected microplastics at 75% of stations sampled, finding no hotspots and no clear correlation with depth or distance from land, demonstrating the widespread extent of deep-sea microplastic contamination.
Comparison of Microplastic abundance in varying depths of deep-sea sediments, Bay of Bengal
Researchers measured microplastic concentrations in deep-sea sediment samples from the Bay of Bengal at depths of 225 to 1,070 meters, finding the highest concentrations at intermediate depths. The findings add to evidence that microplastics have penetrated into deep-sea environments far from the surface.
Unveiling the deep-sea microplastic Odyssey: Characteristics, distribution, and ecological implications in Pacific Ocean sediments
Researchers investigated microplastic contamination in deep-sea sediments from the Pacific Ocean at depths reaching nearly 7,000 meters. They found microplastics at every sampling site, predominantly polyester and rayon fibers, with the highest concentrations in the Western Pacific. The study highlights that microplastic pollution has reached some of the most remote deep-sea environments on Earth, raising concerns about its ecological impact.
Plastic microfibre ingestion by deep-sea organisms
Researchers provided the first evidence that microplastics are being ingested and internalized by deep-sea organisms living on the ocean floor. The study found plastic microfibres in multiple deep-water species, demonstrating that microplastic contamination has already reached some of the most remote habitats on Earth.
Investigation of Microplastics from Deep-Sea Antarctic and West Coast North American Sediments
Microplastics were identified in deep-sea sediments from both Antarctic and North American Pacific sites, confirming that plastic pollution has reached even the most remote ocean floor environments far from human activity.
Fate of microplastics in deep-sea sediments and its influencing factors: Evidence from the Eastern Indian Ocean
Surface sediments from 26 sites in the deep basin of the Eastern Indian Ocean were analyzed for microplastics, finding concentrations ranging widely and influenced by water depth, distance from land, and ocean current patterns. The study extends deep-sea microplastic monitoring to the Indian Ocean and identifies oceanographic transport as a key control on plastic distribution.
The first report on emerged microplastics in deep-sea sediment: Insights from the Central Indian Ocean Basin
Researchers reported the first detection of emerged (beach-cast) microplastics in deep-sea sediments from an understudied region, characterizing particle types, polymer composition, and likely transport pathways. The findings confirm that even remote deep-sea environments receive microplastic inputs.
The deep sea is a major sink for microplastic debris
Researchers analyzed deep-sea sediments from the Atlantic, Mediterranean, and Indian Ocean and found microplastic fibers up to 4 orders of magnitude more concentrated than at the contaminated sea surface, identifying the deep seafloor as a vast and previously unknown repository of the world's 'missing' plastic.
High Quantities of Microplastic in Arctic Deep-Sea Sediments from the HAUSGARTEN Observatory
Researchers found high quantities of microplastics in deep-sea sediments from the Arctic HAUSGARTEN observatory, demonstrating that even remote deep Arctic seafloor environments have accumulated significant microplastic pollution.
First long-term evidence of microplastic pollution in the deep subtropical Northeast Atlantic
Researchers found microplastic particles in all 110 sediment trap samples collected over a 12-year period from 2,000-meter depths in the Northeast Atlantic, establishing the deep ocean as a long-term sink for microplastics with fluxes increasing over time.
High Abundances of Microplastic Pollution in Deep-Sea Sediments: Evidence from Antarctica and the Southern Ocean
Microplastic pollution was investigated in deep-sea sediments from Antarctic and Southern Ocean regions, finding high abundances that varied among sites. The study confirmed that microplastics are accumulating in the remote Antarctic deep-sea environment, with evidence going back to scientific literature from the 1980s that has accelerated in recent years.
Microplastic pollution identified in deep-sea water and ingested by benthic invertebrates in the Rockall Trough, North Atlantic Ocean
Researchers identified microplastics in deep-sea water samples and found them in the gut contents of benthic invertebrates living on the seafloor — providing evidence that the deep sea is both a sink for microplastics and that deep-sea organisms are ingesting them. The study raises concerns about contamination reaching even the most remote marine ecosystems.
Microplastics in the abyss: a first investigation into sediments at 2443-m depth (Toulon, France)
Researchers conducted the first microplastic investigation of deep-sea sediments at 2,443-m depth near Toulon, France, finding microplastics present in abyssal sediments and suggesting that deep-sea environments are not isolated from surface plastic pollution.
A novel method enabling the accurate quantification of microplastics in the water column of deep ocean
A new sampling method was developed to accurately measure microplastics in the deep ocean water column, addressing gaps left by traditional net trawls that miss very small particles. Reliable deep-sea sampling is critical since the deep ocean is thought to be a major sink for global microplastic pollution.
Prevalence of small high-density microplastics in the continental shelf and deep sea waters of East Asia
Researchers collected water samples at multiple depth layers across the continental shelf and deep sea of East Asia and found that small, high-density microplastics were more abundant in deeper waters, suggesting vertical sinking pathways concentrate certain particle types in the deep ocean.
Plastics from Surface to Seabed: Vertical Distribution of (Micro)plastic Particles in the North Pacific Ocean
Researchers investigated the vertical distribution of microplastics across the water column and deep-sea sediments (>5 km) in the North Pacific Ocean, finding concentrations of 8-2600 items/m3 in the water column and 1100-3200 items/kg in sediments, with distinct patterns across the North Pacific Subtropical Gyre, Papahanaumokuakea Monument, and a less-polluted open ocean site.
The role of oceanographic processes and sedimentological settings on the deposition of microplastics in marine sediment: Icelandic waters
Researchers analyzed microplastics from marine sediment cores collected at eight sites on the Iceland continental shelf, examining how oceanographic processes and sedimentological settings influence the deposition and distribution of microplastic debris on the seafloor.
Plastics from Surfaceto Seabed: Vertical Distributionof (Micro)plastic Particles in the North Pacific Ocean
Researchers investigated the vertical distribution of microplastics from surface waters to deep-sea sediments (>5 km) in the North Pacific Ocean, documenting concentrations of 8-2600 items/m3 in the water column and 1100-3200 items/kg in sediments across the North Pacific Subtropical Gyre, Papahanaumokuakea Monument, and a less-polluted reference site.
Microplastic in the Deep-sea Sediment of Southwestern Sumatran Waters
Researchers found microplastic particles in deep-sea sediments off the coast of southwestern Sumatra, Indonesia — a country that ranks among the world's largest plastic waste producers. The presence of microplastics in deep-sea sediments confirms that plastic particles sink and accumulate even in remote ocean floor environments far from land.