We can't find the internet
Attempting to reconnect
Something went wrong!
Hang in there while we get back on track
Papers
20 resultsShowing papers similar to Global mapping for the occurrence of all-sized microplastics in seafloor sediments
ClearGlobal mapping for the occurrence of all-sized microplastics in seafloor sediments
Researchers compiled and analyzed sampling data from 2,024 global seafloor sediment sites and developed Python-based tools to extract submarine current state data corresponding to each sampling location, enabling investigation of hydrodynamic drivers of microplastic distribution in seafloor sediments.
Ubiquity of microplastics in coastal seafloor sediments
Researchers applied a novel method to quantify microplastic concentrations in seafloor sediments from 42 coastal sites across southeastern Australia. They found microplastics in all samples at an average concentration of 3.4 particles per milliliter of sediment, predominantly as filaments. The study demonstrates that microplastic contamination of coastal seafloor sediments is ubiquitous and that hydrological and sediment properties influence deposition patterns.
Global mapping for the occurrence of all-sized microplastics in seafloor sediments
Researchers developed code for extracting ocean surface current and near-bed thermohaline current data to analyze the hydrodynamic driving forces behind global microplastic distribution patterns in seafloor sediments.
A large-scale study of microplastic abundance in sediment cores from the UK continental shelf and slope
Microplastic abundance was surveyed in sediment cores from three areas of the UK continental shelf, establishing a baseline pollution profile across contrasting coastal environments. Concentrations varied considerably by location and depth, with the data providing a foundation for future risk assessments of seafloor contamination.
Microplastics in sediments: a comparison within zones located worldwide with different impact
Researchers quantified and compared microplastic abundance in marine sediment samples collected from 25 sites across six coastal areas worldwide at depths ranging from 1 to 426 metres during 2022 and 2023. The study found a mean abundance of 308.81 items per kg dry weight across all sites, with concentrations varying substantially by location and reflecting differing levels of anthropogenic influence.
Estimating global marine surface microplastic abundance: systematic literature review
Researchers conducted a systematic literature review to estimate global marine surface microplastic abundance, compiling data from studies worldwide to produce abundance maps. The study found significant variation in microplastic concentrations across different ocean regions, providing a broader picture of the scale and distribution of marine microplastic pollution.
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.
Occurrence and spatial distribution of microplastics in sediments from Norderney
Researchers surveyed sediments from Norderney in the North Sea and found widespread microplastic contamination, documenting spatial distribution patterns and particle characteristics across this tidally influenced coastal environment.
The fate of microplastic in marine sedimentary environments: A review and synthesis
A systematic review of 80 papers on microplastics in marine sediments found median concentrations varied widely by sediment environment, with fibers dominating many locations, and showed that sediment grain size and organic carbon content influence microplastic accumulation.
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.
Microplastics Baseline Surveys at the Water Surface and in Sediments of the North-East Atlantic
Researchers measured microplastic concentrations at the sea surface and in sediments across the southern North Sea and northwestern Europe, finding highly variable but widespread contamination. Sediments contained far higher concentrations than surface waters, confirming that the seafloor acts as a major sink for microplastic pollution.
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.
A new analytical approach for monitoring microplastics in marine sediments
Researchers developed a new analytical approach for monitoring microplastics specifically in marine sediments, improving extraction and identification steps to enable more reliable and standardized environmental monitoring of seafloor contamination.
A spatial and temporal assessment of microplastics in seafloor sediments: A case study for the UK
This study assessed microplastic occurrence and abundance in UK seafloor sediments across spatial and temporal scales, supporting the development of common monitoring indicators for regional marine frameworks like OSPAR.
Microplastics in the Mediterranean Sea: Deposition in coastal shallow sediments, spatial variation and preferential grain size
Researchers sampled Mediterranean coastal shallow sediments and found microplastics throughout, with concentrations and polymer types reflecting land-based inputs and showing that coastal sediments are a significant regional reservoir for plastic debris.
A large-scale investigation of microplastic contamination: Abundance and characteristics of microplastics in European beach sediment
This large-scale investigation characterized microplastic contamination across a wide geographic area, documenting abundance and polymer types and providing a baseline dataset for tracking pollution trends over time.
A multilevel dataset of microplastic abundance in the world’s upper ocean and the Laurentian Great Lakes
Researchers synthesized 8,218 pelagic microplastic samples from the world's oceans into a multilevel public dataset, calibrating for sampling differences and vertical mixing effects to provide standardized global estimates of upper ocean microplastic abundance.
A global inventory of small floating plastic debris
Researchers compiled a global inventory of small floating plastic debris from ocean surface sampling expeditions, estimating the total abundance and mass of floating microplastics and identifying the major oceanic accumulation zones.
An integrated assessment of microplastic pollution in coastal surface water and sediment of Japan
Researchers conducted a comprehensive survey of microplastic pollution across 14 coastal locations around Japan from Hokkaido to Okinawa, measuring concentrations of 288.7 g/km2 in surface water and 1,185 kg/km2 in sediment and characterizing polymer types, shapes, and size distributions.
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.