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61,005 resultsShowing papers similar to Continuous long-term monitoring of leaching from microplastics into ambient water – A multi-endpoint approach
ClearLeaching of carbon, metals, and additives from microplastics to water
Researchers soaked a range of consumer plastic microplastics in water for 12 weeks and found that most released substantial dissolved organic carbon, metals including calcium, iron, and zinc, and dozens of chemical additives — with leaching rates highest in the first few weeks and varying by polymer type.
Microplastics release a range of substances into the surrounding water
Researchers monitored the leaching of chemical substances from microplastics into surrounding water over time, quantifying what compounds are released under aquatic conditions. The study found that microplastics continuously release a range of substances, adding to their environmental hazard beyond physical particle effects.
Microplastics release a range of substances into the surrounding water
This study monitored the continuous leaching of chemical substances from microplastics into surrounding water, identifying a range of compounds released over time. The findings confirm that microplastics act as a persistent source of chemical contamination in aquatic environments, beyond their direct physical effects.
Elucidating the characteristic of leachates released from microplastics under different aging conditions: Perspectives of dissolved organic carbon fingerprints and nano-plastics
Researchers investigated how different aging conditions affect the release of dissolved organic carbon and nanoplastics from PVC and polystyrene microplastics over 130 days. The study found that UV aging and high temperatures promoted the release of nanoplastics and altered the chemical characteristics of leached substances, with UV-aged treatments producing smaller, rougher nanoparticles that may pose greater ecological risks.
Characterization of microplastic-derived dissolved organic matter in freshwater: Effects of light irradiation and polymer types
Researchers examined how different types of microplastics release dissolved organic matter into freshwater under light and dark conditions. They found that polypropylene released the most organic compounds after UV exposure, while protein-like substances were the main material released by most plastics in the dark. The study indicates that microplastics may have ongoing, long-term effects on water chemistry and microbial activity in natural water bodies.
Microplastic-derived dissolved organic matter and its biogeochemical behaviors in aquatic environments: A review
This review examines how microplastics release dissolved organic matter (MP-DOM) as they break down in water, and how these released chemicals affect water ecosystems. MP-DOM can interact with other pollutants and alter carbon cycling in natural waters, with the type and amount varying based on plastic composition and weathering conditions. Understanding what microplastics release into water as they degrade is important because these dissolved chemicals may have their own toxic effects on aquatic life and water quality.
Dissolved organic carbon leaching from microplastics and bioavailability in coastal ecosystems
Researchers evaluated dissolved organic carbon leaching from polyethylene and polypropylene microplastics in coastal ecosystems, finding that up to 85% of the leached carbon was biodegradable by microbial communities. The study found that different coastal environments, such as seagrass beds and river mouths, showed varying abilities to utilize this plastic-derived carbon, suggesting microplastics may be an underappreciated source of dissolved organic carbon in marine systems.
Non-targeted analysis for organic components of microplastic leachates
Researchers used non-targeted analysis to identify over 100 organic compounds leaching from five common plastic polymer types in simulated gastric fluid, freshwater, and seawater, finding that leaching medium significantly influenced the chemical profile and that recycled plastics leached distinct compound clusters compared to virgin materials.
Source-specific quantification of microplastic-derived dissolved organic matter in sludge liquor using δ13C-labeled sludge and isotopic fingerprinting under varying conditioning treatments
Source-specific dissolved organic matter released by microplastics was quantified and characterized, revealing that different polymer types leach distinct chemical profiles into water. These leachates can alter aquatic chemistry and microbial communities in ways specific to the plastic source.
Spectroscopic Tracking of the Characteristics of Microplastic-Derived Dissolved Organic Matter
This study used fluorescence spectroscopy to track dissolved organic matter leaching from polyethylene, PVC, and other plastic types over time, finding that different polymers release distinct dissolved organic matter compositions with varying potential to affect aquatic ecosystems.
Molecular fingerprints of dissolved organic matter leached from microplastics over prolonged photochemical aging: Implications for aquatic carbon cycling
Researchers used ultra-high-resolution mass spectrometry to identify the dissolved organic molecules that leach from polypropylene, polyethylene, and polystyrene microplastics after prolonged exposure to sunlight. They found that polystyrene released the most diverse array of molecules, many of which could persist in water systems. The study suggests that as microplastics degrade in sunlight, they release non-natural organic compounds that may affect the aquatic carbon cycle from rivers to oceans.
Microplastic-derived dissolved organic matter: Generation, characterization, and environmental behaviors
This review examines how microplastics release dissolved organic matter as they break down in the environment, creating a previously overlooked source of carbon and chemical pollution. Researchers found that this microplastic-derived organic matter can interact with other pollutants, affect water quality, and influence microbial communities. The study highlights a lesser-known dimension of microplastic pollution that could have significant environmental consequences.
Leachability of microplastic from different plastic materials
This study tested the leachability of microplastics from several common plastic materials under environmental conditions, finding that plastic type and degradation state influence how readily microplastic particles are released.
Emerging investigator series: microplastic-based leachate formation under UV irradiation: the extent, characteristics, and mechanisms
Six common microplastic types were exposed to UV irradiation to characterize surface changes and leachate chemical profiles, finding that UV treatment generated oxidized surface groups and released diverse organic compounds. Leachate composition varied by polymer type, highlighting the role of weathering in generating secondary chemical pollution from microplastics.
Microplastics and Nanoplastics in the Aquatic Environment: Contamination, Determination and Interaction with Other Contaminants
This review gathers information on microplastic and nanoplastic contamination in aquatic environments, examining their detection methods, environmental persistence, and interactions with other contaminants including their capacity to adsorb and release chemical compounds.
Seeping plastics: Potentially harmful molecular fragments leaching out from microplastics during accelerated ageing in seawater
Researchers conducted accelerated aging experiments on four common plastic types in seawater to study the chemical compounds they release as they degrade. The study found that aging microplastics leach potentially harmful molecular fragments into the surrounding water, demonstrating that microplastics are not inert pollutants but chemically reactive materials that release degradation byproducts over time.