We can't find the internet
Attempting to reconnect
Something went wrong!
Hang in there while we get back on track
Papers
61,005 resultsShowing papers similar to Interdecadal Distribution of Persistent Organic Pollutants in Deep-Sea Chemosynthetic Bivalves
ClearGlobal qualitative and quantitative distribution of micropollutants in the deep sea.
Micropollutants have reached all ocean zones including depths beyond 10,000 m, with highest concentrations in the Northern Hemisphere at depths up to 3,000 m; PCBs, organotins, and PAHs were detected above legislated thresholds in both organisms and environmental samples, confirming the deep sea as a pollutant sink.
Consistent microplastic ingestion by deep-sea invertebrates over the last four decades (1976–2015), a study from the North East Atlantic
Researchers found consistent microplastic ingestion by deep-sea invertebrates in the North East Atlantic over a 40-year period from 1976 to 2015, demonstrating that microplastic contamination of remote deep-sea habitats is a long-standing and persistent problem.
Organic pollutants in deep sea: Occurrence, fate, and ecological implications
This review synthesized data on organic pollutants in the deep sea, finding that persistent contaminants including microplastics and their sorbed chemicals reach depths exceeding 10,000 meters through particle sinking, water mass transport, and biological vectors, threatening poorly understood but ecologically vital deep-sea ecosystems.
Persistent organic pollutant accumulation in Pacific abyssal plain sediments and biota: Implications for sources, transport, and deep-sea mining
Researchers provided the first evidence of persistent organic pollutants including PCBs, PBDEs, and PFAS in sediment and deep-sea fish from the Pacific abyssal plain, an area targeted for deep-sea mining. They found that while PCB levels were evenly distributed across sites, other pollutants showed more patchy distributions. The findings raise important questions about how mining activities could disturb contaminated deep-sea sediments and redistribute pollutants into the water column.
Toxic anthropogenic pollutants reach the deepest ocean on Earth
PCBs (toxic industrial chemicals) were found at extremely high concentrations in sediment from the deepest part of the Mariana Trench, far exceeding levels seen in shallower marine sediments. This confirms that persistent pollutants—and by implication microplastics—sink to and accumulate in the world's deepest ocean trenches.
Deep seafloor plastics as the source and sink of organic pollutants in the northern South China Sea
This study found high levels of persistent organic pollutants — polychlorinated biphenyls and organochlorine pesticides — adsorbed onto plastic debris collected from the deep seafloor of the South China Sea. The findings confirm that large plastic items on the seafloor act as both sources and sinks for toxic organic pollutants, threatening deep-sea ecosystems.
Emerging and legacy pollutants in abyssal sediments of the world’s largest enclosed waterbody
Sediment samples from the abyssal zones of the western Pacific revealed both legacy pollutants (PCBs, DDT) and microplastics at significant depths, showing that even the most remote deep-sea environments are contaminated by human-made chemicals. The co-occurrence suggests microplastics may serve as carriers transporting persistent organic pollutants to the deep ocean.
Field evidence and modeling validation of biogeochemical controls on the deposition of persistent organic pollutants in the deep ocean
Surface sediments from the deep Eastern Indian Ocean (2161–4545 m) contained organochlorine pesticides (36.7–762.0 pg/g) and PCBs (25.5–110.0 pg/g) delivered primarily by long-range atmospheric transport, with mid-ocean ridge hydrodynamics influencing local deposition and accumulation patterns.
Microplastics and POPs on the Southwestern Atlantic deep-sea floor: a study of megafauna and sediments
This study provided the first report of microplastics and persistent organic pollutants (POPs) in the Southwestern Atlantic deep-sea floor, examining both sediments and benthic megafauna. Microplastics and POPs were detected in deep-sea organisms and sediments, demonstrating that even remote deep-ocean environments in the Southern Hemisphere are contaminated by surface-derived plastic pollution.
Persistent organic pollutants are still present in surface marine sediments from the Seto Inland Sea, Japan
Researchers measured legacy persistent organic pollutants (PCBs, DDTs, HCHs, chlordanes) in surface sediments across Japan's Seto Inland Sea and found that historically contaminated deep sediments, resuspended by currents, continue to elevate surface concentrations despite decades of regulatory bans.
Microplastic pollution in deep-sea sediments
Researchers analyzed deep-sea sediment cores and found microplastics present at depth, providing early evidence that deep-sea sediments globally accumulate microplastic pollution far from coastlines and at the seafloor.
Unseen pollutants: Microplastics in deep-sea invertebrates
Microplastics were detected in deep-sea invertebrates from multiple ocean basins, confirming that plastic contamination has penetrated to organisms living in the darkest, most remote zones of the ocean. This finding raises concerns about the ecological and food-web implications of deep-sea microplastic exposure.
Weathered microplastics alter deep sea benthic biogeochemistry and organic matter cycling: insights from a microcosm experiment
Weathered (aged) microplastics deposited in deep-sea sediments were found to alter benthic biogeochemical cycles, affecting nitrogen and carbon processing by seafloor microorganisms. The findings show that plastic pollution can disrupt the chemical ecology of even the most remote deep-ocean environments.
>b/b<: influence of feeding mode on microplastic intake by benthic organisms and detection of persistent organic pollutants in biological and sediment samples
This study investigated micropollutant accumulation including microplastics in deep-sea organisms from the Southern Atlantic, examining how feeding mode influences contaminant intake. Results showed that filter feeders and deposit feeders accumulated different levels of microplastics and chemical pollutants, reflecting the deep sea's vulnerability to surface pollution.
Microplastics and synthetic particles ingested by deep-sea amphipods in six of the deepest marine ecosystems on Earth
Amphipod crustaceans from six of the deepest Pacific ocean trenches (7,000–10,890 m depth) were examined for microplastic ingestion, with over 72% of the 90 individuals containing at least one microparticle, including fibers, films, and fragments of polyethylene terephthalate and nylon. The study provides the first evidence that microplastic contamination reaches the deepest inhabited parts of the world's oceans.
Micropoluentes no mar profundo: influência do modo alimentar na ingestão de microplásticos em organismos bentônicos e detecção de poluentes orgânicos persistentes em amostras biológicas e de sedimento
This Portuguese-language study examined micropollutant exposure including microplastics in deep-sea organisms from the Southern Atlantic, analyzing how feeding mode determines microplastic ingestion across different species. The research found that even the most remote marine habitats on Earth harbor plastic contamination detectable in deep-sea fauna.
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.
Persistent Organic Pollutants (POPs) in The Sea: A Review
This review summarizes the occurrence and persistence of Persistent Organic Pollutants in marine environments, noting that even banned chemicals continue to be detected globally due to their resistance to environmental degradation.
Potential Effects of Persistent Organic Contaminants on Marine Biota: A Review on Recent Research
This review examined the effects of persistent organic contaminants including microplastics, pharmaceuticals, pesticides, PCBs, and PAHs on marine biota, synthesizing evidence of direct and indirect ecological impacts across multiple chemical classes.
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.
30 years trends of microplastic pollution: Mass-quantitative analysis of archived mussel samples from the North and Baltic Seas
Researchers analyzed archived blue mussel samples from the North and Baltic Seas spanning nearly 30 years and found that microplastic levels measured by pyrolysis GC-MS were at ppm concentrations, providing one of the first long-term trend datasets for microplastic pollution in marine bivalves.
Microplastic 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.
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.