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20 resultsShowing papers similar to Oil spills enhanced dispersion and transport of microplastics in sea water and sand at coastal beachheads
ClearModel studies on transport of microplastics from a leak accident
Researchers investigated a microplastic spill accident along the Chinese coastline and modeled how the particles dispersed across nearby beaches. The study found significant accumulation on multiple beaches within days of the spill, underscoring the rapid spread of plastic pollution in coastal environments after an accidental release.
Microplastic Contamination on the Beaches of South China
Researchers surveyed microplastic contamination across 14 beaches along the South China coast, finding microplastics ubiquitously present in sandy sediments, predominantly as small fragments under 1 mm, with distribution patterns linked to coastal urbanization and ocean current dynamics.
Interactions among microplastics, spilled oil and dispersant: Impacts of marine environmental conditions
When oil spills happen in coastal waters already contaminated with microplastics, the interactions between oil, microplastics, and chemical dispersants become complex. This study tested how different water temperatures, salt concentrations, and wave conditions affect how oil disperses and settles when microplastics and dispersants are both present, finding that higher temperature and salinity enhanced oil dispersion while microplastics and dispersants together increased the amount of oil entering the water column. These findings matter for crafting more effective and ecologically safer oil spill responses in plastic-polluted marine environments.
Effect of Salinity and Temperature on the Dispersion of Spilled Oil in the Presence of Microplastics
Researchers investigated how salinity and temperature affect the dispersion of spilled oil in seawater when microplastics are present, finding that these environmental variables alter oil droplet behavior and distribution. The results suggest that microplastics complicate oil spill dynamics in ways that vary with ocean conditions.
Characteristics, behaviour and fluxes of microplastics in the coastal boundary zones of the Persian Gulf and Oman Sea
This study characterized the behavior and fluxes of microplastics in the coastal boundary zone, tracking how MPs move between nearshore waters, beach sediments, and the open sea under different hydrodynamic conditions.
Microplastic pollution in sediments from the Bohai Sea and the Yellow Sea, China
Researchers sampled sediments from the Bohai Sea and Yellow Sea and found widespread microplastic contamination, with fibers and fragments as the dominant forms, and higher concentrations near river mouths and urban coastlines.
Impact of mixing energy and dispersant dosage on oil dispersion and sedimentation with microplastics in the marine environment
Laboratory experiments simulated how crude oil spilled at sea behaves differently when microplastics are present, testing the effects of wave energy and chemical dispersant on oil dispersion and sedimentation. Higher wave energy and dispersant doses both increased oil dispersion, but microplastics caused oil droplets to aggregate into heavier particles that sank faster, meaning more oil-microplastic agglomerates reached the seafloor than would otherwise. This interaction could complicate oil spill response and extend ecological damage to deep-sea environments.
Interactions between microplastics and oil dispersion in the marine environment
Researchers investigated interactions between microplastics and crude oil in marine environments, finding that microplastics adsorb oil components and can reduce the effectiveness of chemical dispersants used in oil spill response by competing for surfactant molecules and altering oil droplet behavior.
Prediction of microplastic transport in oil-contaminated waters
Researchers modeled microplastic transport in oil-contaminated marine waters, examining how oil-spill treating agents alter MP behavior and distribution. Oil additives changed the density and aggregation of MPs, affecting their transport from surface waters to deeper layers and increasing exposure risks for deep-sea organisms.
Characteristics of microplastics in different matrices in Jiaozhou Bay, China
Researchers characterized microplastics across multiple matrices (water, sediment, organisms) in Jiaozhou Bay, China to understand coastal pollution patterns. They found widespread microplastic contamination with distinct distribution profiles linked to coastal human activities and identified sources to support pollution mitigation strategies.
Microplastic-oil-dispersant agglomerates in the marine environment: Formation mechanism and impact on oil dispersion
Researchers investigated how microplastics form agglomerates with spilled oil and dispersants in marine environments, identifying two distinct agglomerate types and showing that these formations can significantly affect oil dispersion effectiveness during spill responses.
Factors influencing the occurrence and distribution of microplastics in coastal sediments: From source to sink
Researchers sampled microplastics from sediments of two semi-enclosed bays and two coastal open zones in China, finding that proximity to human activity and reduced hydrodynamic energy were the primary drivers of higher microplastic abundance, with Jinghai Bay showing the greatest contamination due to its enclosed geometry and adjacent urban inputs.
Role of light microplastics in the dispersion process of spilled crude oil in the marine environment
This study examined how the presence of polyethylene and polystyrene microplastics affects the dispersion of crude oil after a spill in simulated ocean conditions, finding that microplastics increased oil dispersion efficiency by altering interfacial properties. The results have implications for oil spill response in microplastic-contaminated marine environments.
Can microplastics in offshore waters reflect plastic emissions from coastal regions?
Researchers found a significant negative correlation between coastal plastic discharge amounts and offshore microplastic abundance in Chinese waters, indicating that hydrodynamic conditions rather than proximity to pollution sources primarily determine microplastic distribution.
Microplastic occurrence in the northern South China Sea, A case for Pre and Post cyclone analysis
Researchers analyzed microplastic contamination in the northern South China Sea before and after a cyclone, finding that the storm event significantly altered microplastic distribution patterns in both coastal seawater and sediments.
Simulation of microplastic transport and dispersion based on a three-dimensional hydrodynamic particle-tracking model in the Beibu Gulf
Researchers developed a three-dimensional hydrodynamic particle-tracking model of microplastic transport in the semi-enclosed Beibu Gulf, finding that monsoon-driven circulation controls dispersal patterns, with microplastics dispersing up to 205 km in spring and storm surges such as Typhoon Yagi significantly intensifying transport and expanding nearshore high-concentration zones.
Observational and model studies on transport and inventory of microplastics from a leak accident on the beaches of Yantai
Researchers investigated a microplastic spill event in Yantai, China, using sediment sampling and Lagrangian particle tracking models to estimate the total amount released and predict dispersal patterns. The spill deposited an estimated 514 kilograms of polyethylene pellets across 7 beaches. The study demonstrates how transport modeling can support environmental assessment and cleanup planning after accidental plastic releases.
Occurrence and spatial distribution of microplastics, and their correlation with petroleum in coastal waters of Hainan Island, China
Researchers investigated microplastics in coastal waters of Hainan Island, China, finding higher concentrations near harbors and industrial zones with a significant positive correlation between microplastic abundance and petroleum contamination, suggesting shared pollution sources.
Microplastic Distribution and Transport Mechanisms in the South Sea and East China Sea of Korea
Researchers collected surface seawater and sediment samples from the South Sea and East China Sea of Korea to map microplastic distribution and identify transport mechanisms. Fragment-shaped microplastics in the 0.02-0.3 mm size range dominated, with concentrations highest in the Yellow Sea area and distribution patterns explained by regional current systems and local land-based inputs.
Microplastic occurrence and hydrodynamic-sedimentary driving effects in the Bohai Strait region of China
This study investigated microplastic occurrence and distribution in the Bohai Sea, examining how hydrodynamic and sedimentary processes drive the spatial pattern of microplastic accumulation. Current dynamics and sedimentation rates emerged as key controls on where microplastics concentrate.