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61,005 resultsShowing papers similar to Protracted dynamicity of microplastics in the coastal sediment of the Southeast Black Sea
ClearCharacteristics and temporal trends of microplastics in the coastal area in the Southern Black Sea over the past decade
Researchers investigated microplastic abundance, polymer types, and size distributions in seawater at three distances from the southeastern Black Sea coast over a decade (2009-2020). Polyethylene and polyethylene terephthalate dominated at 44.9% and 25.3% respectively, with fragment shapes most common, and no significant spatiotemporal changes in abundance were detected.
Current status and comparative risk assessment of microplastic pollution in surface water and sediment from the Black Sea coastline using geospatial analysis
Researchers conducted the first comprehensive microplastic survey of Turkey's Black Sea coast, documenting a roughly 78% annual increase in surface water particle concentrations and a threefold rise at some sediment stations, with fibers and high-risk polymers like PET and PVC dominating both matrices and most sites rated high ecological risk.
Exploring the Microplastics Distribution in the Bottom Sediments of the Western Black Sea
Researchers surveyed the bottom sediments of the western Black Sea and found microplastic particles at every sampling site, with fibers the most common shape and polyethylene/polypropylene the most common polymer types. The widespread presence across the shelf zone, without a clear pattern tied to distance from shore, suggests diffuse anthropogenic inputs rather than a single point source — a finding that complicates clean-up and monitoring efforts for this semi-enclosed sea.
Microplastic contamination and characteristics spatially vary in the southern Black Sea beach sediment and sea surface water
Microplastic abundance and characteristics were assessed along the southern Black Sea coastline, finding that over 70% of particles were smaller than 2.5 mm, with average concentrations of 64 particles/kg in beach sediment and 18.68 particles/m3 in seawater, and the Marmara region showing highest pollution.
Microplastic pollution in a small fishing port in Zonguldak/Turkey
Researchers monitored microplastic abundance and morphology in a small Black Sea fishing port in Zonguldak, Turkey across three seasonal sampling campaigns, finding a mean concentration of 3,417 items/m3, with fiber morphology dominant and concentrations 1.43 times higher on days of peak fishing activity.
Decade of microplastic alteration in the southeastern black sea: An example of seahorse gastrointestinal tracts
Researchers compared microplastic contamination in seahorse gastrointestinal tracts from the Southeastern Black Sea between 2012 and 2022, finding a 32% increase in microplastic items over the decade alongside shifts in polymer composition.
Microplastic occurrence in coastal waters and aquatic faunas of the Western Black Sea
Researchers assessed microplastic occurrence in coastal waters and aquatic fauna of the Western Black Sea region receiving Danube River inputs, characterizing MP distributions in a coastal ecosystem under pressure from tourism, fishing, regional conflicts, and inadequate waste disposal across the Danube basin.
Occurrence and spatial distribution of microplastics in sediment and fish along the Persian Gulf—a case study: Bushehr Province, Iran
Researchers investigated microplastic contamination in sediments and fish across 16 stations along the Bushehr Province coastline in the Persian Gulf, finding a mean abundance of 57.19 particles/kg in sediments — dominated by black fragments — and up to 9 microplastic particles per fish, with black particles again most prevalent.
Comprehensive Review regarding the Profile of the Microplastic Pollution in the Coastal Area of the Black Sea
This literature review profiled microplastic pollution across the Black Sea, summarizing contamination levels in water, sediment, and seafood consumed by coastal populations. The Black Sea's unique hydrodynamics and heavy riverine inputs create hotspots for microplastic accumulation, with seafood contamination posing direct human exposure concerns.
Short-term tourism alters abundance, size, and composition of microplastics on sandy beaches
Researchers sampled microplastics on nine sandy beaches along the Turkish Black Sea coast before and after the tourism season and found that tourist activity significantly increased microplastic abundance, altered size distributions, and changed polymer composition. The results provide direct field evidence that recreational beach use is a local source of microplastic pollution.
High microplastic pollution in marine sediments associated with urbanised areas along the SW Bulgarian Black Sea coast
Researchers measured microplastic concentrations in beach and seabed sediments along the southwestern Bulgarian Black Sea coast. Urbanized coastal areas had significantly higher microplastic levels than non-urbanized areas, with seabed samples averaging over 800 particles per kilogram of dry sediment. The study identified sewage discharges, urban waste, fisheries, and marine litter accumulation as likely sources of the contamination.
Microplastic Pollution on the Beaches of the Black Sea in Romania and Bulgaria
Researchers characterized microplastic pollution on beaches along the Black Sea coast in Romania and Bulgaria, finding microplastics at all sampled sites with fragment and fiber morphologies predominating and higher concentrations near tourist and urban areas.
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.
Dropping the microbead: Source and sink related microplastic distribution in the Black Sea and Caspian Sea basins
Researchers assessed microplastic distribution in sediments of the Black Sea and Caspian Sea basins, finding that proximity to rivers and shorelines was a stronger predictor of microplastic concentration than water depth or sediment grain size.
Can a Sediment Core Reveal the Plastic Age? Microplastic Preservation in a Coastal Sedimentary Record
Researchers used a sediment core from the NW Mediterranean Sea combined with state-of-the-art microplastic identification methods to reconstruct the historical record of microplastic pollution down to 11 micrometers in size. The core revealed a clear acceleration in microplastic burial rates since the 1960s and provided evidence that some polymer types are preserved well in sediment.
Hallmarking microplastics of sediments and Chamelea gallina inhabiting Southwestern Black Sea: A hypothetical look at consumption risks
Researchers investigated microplastic contamination in sediments and the bivalve Chamelea gallina along the Southwestern Black Sea coast, finding 28-684 particles per kilogram in sediments and up to 2.17 particles per individual clam, with seven polymer types identified.
Microplastic particles in sediments and waters, south of Caspian Sea: Frequency, distribution, characteristics, and chemical composition
Researchers assessed microplastic occurrence in coastal sediments and surface waters along the southern Caspian Sea coast in Iran, finding mean concentrations of 15 items/kg in sediments and 710 items/m3 in coastal water. Fibers dominated at 97% of all MPs in both media and were predominantly black-colored, with smaller particles more prevalent in water than sediments.
An analysis of the current and forecasted ecological risk related to the presence of microplastics on the Romanian Black Sea coast
Researchers analyzed microplastics along 82 km of Romania's Black Sea coastline, finding densities between 122 and 536 particles per kilogram of sediment, with polyethylene as the dominant polymer. Forecasting models predict a sharp rise in ecological risk if plastic waste reduction and management practices are not urgently improved.
Microplastics in sediments: a comparison within zones located worldwide with different impact
Researchers collected 25 sediment samples from six coastal areas worldwide spanning depths from 1 to 426 meters during 2022 and 2023 to compare microplastic abundance in zones with different levels of anthropogenic impact. They found a mean microplastic concentration of 308.81 items per kg dry weight across all sites, ranging from 20.79 items per kg in touristic Palma, Mallorca to 872.95 items per kg in the highly urbanized Ilha da Mare in Brazil, with fibers comprising approximately 95% of detected particles.
Microplastics in the Black Sea sediments
Microplastics in Black Sea sediments were characterized by occurrence, morphology, and polymer type for the first time, using samples collected across a depth range of 22 to 2131 meters. The study tested a non-invasive filtration method and found microplastics across the sampled depth range, demonstrating vertical distribution of plastic pollution in the Black Sea.
Seasonal distribution and abundance of microplastics in the coastal sediments of north eastern Arabian Sea
Researchers documented seasonal variation in microplastic abundance along India's North Eastern Arabian Sea coast, finding 4,400 to 15,300 items per kilogram of dry sediment with fibers as the dominant form across ten identified polymer types.
Linking the Tourism Activity to the Occurrence and Distribution of Microplastics
Researchers assessed microplastic abundance, type, and spatial distribution in coastal water, sediments, and fish across three zones of Gili Trawangan, Indonesia, finding that tourism-related activities concentrated microplastics at recreational beaches with concentrations reaching 19.25 particles/L.
Factors Influencing the Three-dimensional Distribution of Microplastics on Sandy Beaches: A Case Study from the Turkish Coast of the Black Sea
A study of nine Black Sea beaches in Turkey found that microplastic abundance varied significantly with beach width, sand grain size, organic content, and tourism pressure, revealing that local physical and human factors shape how microplastics accumulate across the three-dimensional sediment profile. These findings help explain why microplastic hotspots form on particular beaches and can guide targeted cleanup and monitoring efforts.
Changes in (micro and macro) plastic pollution in the sediment of three sandy beaches in the Eastern Mediterranean Sea, in relation to seasonality, beach use and granulometry
Researchers measured plastic and microplastic pollution in sediment from three Mediterranean beaches across seasons, finding that smaller microplastics accumulate at the backshore while larger items concentrate near the waterline. Seasonal patterns and beach use intensity affected plastic abundance, with implications for beach management and cleanup strategies.