We can't find the internet
Attempting to reconnect
Something went wrong!
Hang in there while we get back on track
Exploring the Microplastics Distribution in the Bottom Sediments of the Western Black Sea
AI summary Read the abstract
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.
Background. The spread and accumulation of plastic waste in the environment is now a recognized global problem. The development of an effective strategy for managing plastic waste and minimizing its impact on the marine environment is not possible without conducting field studies in bottom sediments. Determination of their content in the upper layer of precipitation and study of qualitative and quantitative characteristics will allow to outline the patterns of their entry into the water area, distribution and accumulation, risks of impact on marine organisms. Methods. Visual determination of microplastic particles was carried out under the monocular of SIGETA MB-12 LCD optical microscope. An alternative method of identification, the hot needle test, was also used to determine plastic under the microscope. Raman spectroscopy was used to perform structural identification. Laboratory studies were performed using a single-stage MDR-23 spectrometer equipped with a cooled CCD detector and a Micromed microscope. Results. The analysis of each sample and subsequent generalization showed the presence of plastic particles at all points of the sampling area, in different quantities and composition. The results of our studies confirm that microplastic particles in the surface sediments are quite abundant throughout the entire research area, and they are represented by different types everywhere, with fibers dominating in terms of morphological characteristics and polyethylene and polypropylene in terms of chemical types. There is no stable dependence of redistribution of microplastics of different densities on distance from the shore. The only thing that can be confirmed is uneven lateral distribution within the shelf zone, which is quite possibly related to the impact of the anthropogenic plane load on the surface bottom sediments. Conclusions. Studies have shown that microplastic particles in the surface sediments are quite abundant throughout the survey area, and they are represented by different types everywhere, with fibers dominating in terms of morphological characteristics. As for the distribution of microplastics in surface sediments depending on natural conditions, we can document the fact that the amount of polymers, in terms of dry weight of soil matrix samples, increases in the direction of the mainland slope. An important result of the work was the identification of a number of topical issues, shortcomings and uncertainties in laboratory research methods, sample preparation and identifying microplastics, which should be addressed in the future.
More Papers Like This
Microplastics in the Black Sea sediments
AI summary Read the abstract
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.
Microplastic contamination and characteristics spatially vary in the southern Black Sea beach sediment and sea surface water
AI summary Read the abstract
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.
Spatial Distribution and Index-Based Assessment of Microplastic Pollution in the Southern Black Sea
AI summary Read the abstract
Scientists tested waters and sediments along the southern Black Sea coast and found tiny plastic particles, mostly common plastics like polyethylene (used in bags and packaging), everywhere they looked, both in the water and on the seafloor. This matters because these coastal areas are often sources of seafood, and microplastics that build up in the environment can end up in the fish and shellfish people eat, though this study focused on mapping pollution levels rather than directly measuring health effects. The findings give researchers a baseline to track pollution trends and push for better plastic waste management in the region.
Microplastic Pollution Profile in the Black Sea Region
AI summary Read the abstract
Researchers reviewed 100 peer-reviewed articles to create a comprehensive pollution profile of microplastics in the Black Sea region. They found that microplastics have been documented across multiple environmental compartments in the region, with plastic products from various industrial sectors contributing to contamination. The review provides an overview of the current state of knowledge on microplastic distribution and sources specific to this ecologically important semi-enclosed sea.
Microplastic Pollution on the Beaches of the Black Sea in Romania and Bulgaria
AI summary Read the abstract
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.
Research digests by email
When a large batch of papers lands in the Atlas, we read through it and send a short write-up of what stood out.