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61,005 resultsShowing papers similar to Effect of Copper Antifouling Paint on Marine Degradation of Polypropylene: Uneven Distribution of Microdebris between Nagasaki Port and Goto Island, Japan
ClearVerification of the existence of copper-based antifouling paint particles in the sea and their implications for marine microplastic degradation
Researchers collected marine debris near Nagasaki, Japan, and found copper-based antifouling paint particles alongside conventional microplastics at several sampling stations. These copper-based particles differ in chemical composition from typical plastic debris and may influence surrounding microplastic degradation patterns. The co-occurrence raises new questions about combined effects of paint particles and microplastics in marine environments.
Verification of the existence of copper-based antifouling paint particles in the sea and their implications for marine microplastic degradation
Researchers collected marine debris samples near Nagasaki, Japan, and found that copper-based antifouling paint particles are widespread in the sea alongside conventional microplastics. The copper-based particles showed no depth-dependent distribution, unlike typical microplastics. Their presence may interact with or influence the degradation of surrounding plastic debris.
Co-occurrence of microplastics and microparticles containing Cu and Zn and other heavy metals in sea-surface microlayer in Osaka Bay, Japan
Researchers analyzed tiny particles floating on the sea surface in Osaka Bay, Japan, and found microplastics containing heavy metals like copper and zinc from ship antifouling paints. Most of these metal-laden particles were made of acrylic resins commonly used in marine coatings, carrying copper concentrations up to 54,000 mg/kg. The study reveals that antifouling paint fragments are a significant and underrecognized source of toxic metal-containing microplastics in coastal waters.
Characterization of microplastics from antifouling coatings released under controlled conditions with an automated SEM-EDX particle analysis method
Researchers demonstrated that antifouling coatings on boat hulls release microplastic particles into seawater during normal sailing conditions, with most particles between 1 and 5 micrometers in size. These particles contain both plastic binder material and toxic metals like copper and zinc used as biocides. This study reveals an often-overlooked source of microplastic pollution in the ocean, where the released particles carry both plastic and heavy metal contamination into marine ecosystems.
Increased Cu(II) Adsorption Onto UV-Aged Polyethylene, Polypropylene, and Polyethylene Terephthalate Microplastic Particles in Seawater
Researchers found that UV aging significantly increased copper(II) adsorption onto polyethylene, polypropylene, and polyethylene terephthalate microplastics in seawater by up to 2.92 times after 12 months, with oxidation-induced surface changes and smaller particle sizes amplifying this effect for PP and PET.
Comprehensive assessment of photo-oxidative degradation and biofilm colonization on microplastic pellets in simulated marine environment
Researchers exposed polyethylene, polypropylene, and nylon-6 microplastics to artificial UV aging and chemical oxidation in seawater to study photo-oxidative degradation and subsequent biofilm colonization. Aging altered surface chemistry and enabled biofilm formation, with degradation rates and biofilm composition varying by polymer type.
New insights on metal ions accelerating the aging behavior of polystyrene microplastics: Effects of different excess reactive oxygen species
The aging behavior of polystyrene microplastics was investigated in the presence of copper and lead ions, finding that both metals accelerated surface oxidation through generation of reactive oxygen species, with copper producing stronger effects. The study reveals that heavy metal co-contamination can substantially alter the weathering trajectory of microplastics in natural environments.
Degradation and fragmentation behavior of polypropylene and polystyrene in water.
Polypropylene and polystyrene retrieved from beaches were compared in their surface texture and degradation behavior when exposed to highly reactive sulfate radicals in water. Polypropylene showed more surface roughening than polystyrene, and both plastics produced degradation products at different rates. The study provides insight into how common plastics break down in aquatic environments into microplastic fragments.
Understanding the potential release of microplastics from coatings used on commercial ships
This review examined how polymer-based paints applied to commercial ships contribute to ocean microplastic pollution. The study found that anticorrosive and antifouling coatings shed plastic particles through normal weathering and in-water hull cleaning, with the extent of release depending on coating type, condition, and maintenance practices.
Methods for the detection and characterization of boat paint microplastics in the marine environment
This study developed and evaluated analytical methods for detecting and characterizing boat paint microplastics in the marine environment, addressing a largely overlooked source of plastic pollution from antifouling and decorative coatings that enter seawater through normal boat use.
Environmental pollution with antifouling paint particles: Distribution, ecotoxicology, and sustainable alternatives
This review examines antifouling paint particles as a type of microplastic pollution loaded with toxic biocidal compounds in the marine environment. Researchers found that these particles are mainly concentrated around boatyards and port areas and contribute significantly to overall microplastic pollution, while also discussing recent advances in nontoxic, biobased antifouling alternatives.
Microplastic Mass Concentrations and Distribution in German Bight Waters by Pyrolysis–Gas Chromatography–Mass Spectrometry/Thermochemolysis Reveal Potential Impact of Marine Coatings: Do Ships Leave Skid Marks?
A mass-based Py-GC/MS survey of microplastics in the German Bight (North Sea) found highly variable concentrations (2–1396 µg/m³) influenced by oceanographic conditions, with coastal samples showing packaging waste signatures and central areas revealing an unexpected signal consistent with marine antifouling paint.
A Review of Microplastics Research in the Shipbuilding and Maritime Transport Industry
This review examined microplastic research specifically focused on the shipbuilding and maritime transport industry, an underexplored source of plastic contamination in marine environments. The authors found that ship maintenance, antifouling paint degradation, and fiber rope wear generate significant quantities of microplastics that largely escape current monitoring frameworks.
Microplastic Formation and Surface Crack Patterns: A Method for Waste Plastic Identification
This review synthesizes current knowledge on microplastic formation mechanisms from polyolefin plastics such as polypropylene and polyethylene in marine environments, identifying autoxidation as the dominant degradation pathway while finding that salinity and chloride ions significantly retard radical formation and proposing surface crack patterns as a method for identifying waste plastic origins.
Simulated experimental investigation of microplastic weathering in marine environment
Researchers simulated microplastic weathering under marine conditions, finding that exposure to UV light, saltwater, and mechanical abrasion progressively degraded plastic surfaces, increased surface roughness, and enhanced the adsorption capacity of contaminants onto microplastic particles.
Promoting Biofilm Formation by Serratia marcescens on Three Types of Artificially Aged Microplastics Under Marine Conditions
Researchers investigated Serratia marcescens biofilm formation on virgin and UV-aged polyethylene, polypropylene, and expanded polystyrene microplastics under marine conditions, finding that aging enhanced biofilm formation on PE and enabled it on PP, while expanded polystyrene showed initial biofilm that dissipated by day 14.
Aging processes and microplastic release behavior of aquaculture implements
Researchers studied how four types of plastic aquaculture equipment age and release microplastics under simulated marine conditions over 16 weeks. They found that PVC buoys released the most microplastic particles, followed by polypropylene cables, polyethylene nets, and PET buoys, with all materials developing increasingly rough surfaces, cracks, and oxygen-containing chemical groups during aging. The study provides guidance for selecting aquaculture materials that minimize microplastic pollution in marine environments.
UVA-induced weathering of microplastics in seawater: surface property transformations and kinetics
Researchers studied how UVA radiation weathers microplastics in seawater, examining changes to surface properties and degradation rates. The study developed a model integrating an aging index with degradation kinetics, finding that UV exposure significantly transforms microplastic surface characteristics, which affects their behavior and potential ecological impact in marine environments.
Adsorption properties and influencing factors of Cu(II) on polystyrene and polyethylene terephthalate microplastics in seawater
Researchers investigated how polystyrene and polyethylene terephthalate microplastics adsorb copper ions in seawater, characterizing adsorption kinetics and influencing factors to understand microplastics' role as vectors for heavy metal pollutants in marine environments.
Qualitative and quantitative assessment of microplastics derived from antifouling paint in effluent from ship hull hydroblasting and their emission into the marine environment
Researchers analyzed microplastic contamination generated during ship hull hydroblasting, a common maintenance procedure. They found that a single vessel produced billions of paint-derived particles, with the vast majority smaller than 5 millimeters and composed primarily of acrylic polymers. The study identifies ship maintenance activities as a significant but often overlooked source of microplastic emissions into marine environments.
Linking UV aging of polymers and microplastics formation: An assessment employing various characterization techniques
This study used environmental assessment tools to model how UV aging of plastic polymers drives microplastic formation in marine environments. The analysis identified polymer-specific degradation rates and environmental conditions that accelerate the conversion of plastic debris into microplastics.
The aging behavior of polyvinyl chloride microplastics promoted by UV-activated persulfate process
Researchers investigated UV-activated persulfate as an accelerated aging process for PVC microplastics, finding significant dechlorination and surface changes that help predict long-term weathering behavior of microplastics in the environment.
Biofilm facilitates metal accumulation onto microplastics in estuarine waters
This study demonstrated that biofilm colonization on microplastics in estuarine waters significantly enhanced their sorption of metals such as copper and zinc, suggesting biofouling changes the contaminant-carrying capacity of plastic debris.
Photo aging of polypropylene microplastics in estuary water and coastal seawater: Important role of chlorine ion
Researchers studied how UV light ages polypropylene microplastics in estuarine and coastal seawater and found that chloride ions significantly accelerated photo-degradation by generating reactive chlorine radicals, suggesting that marine microplastics age faster than freshwater ones.