Microplastic-derived dissolved organic matter: Generation, characterization, and environmental behaviors

The Science of The Total Environment, Journal Year: 2024, Volume and Issue: 948, P. 174811 - 174811

Published: July 18, 2024

Language: Английский

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Exploring Environmental Behaviors and Health Impacts of Biodegradable Microplastics

Environmental Science & Technology, Journal Year: 2025, Volume and Issue: unknown

Published: March 21, 2025

Biodegradable plastics (BPs) are promoted as eco-friendly alternatives to conventional plastics. However, compared microplastics (MPs), they degrade rapidly into biodegradable (BMPs), which may lead a more significant accumulation of BMPs in the environment. This review systematically compares and MPs, summarizes current knowledge on their environmental behaviors impacts ecosystems human health, offers recommendations for future research. detected water, sediments, indoor dust, food, marine organisms, samples. Compared prone transformations, such photodegradation biodegradation, results shorter migration distance across different matrices. Like can adsorb pollutants transport them enhancing toxicity health risks through Trojan horse effect. Studies indicate that negatively impact terrestrial aquatic than MPs by disrupting nutrient cycling inhibiting plant animal growth. In vivo vitro research also shows BMP degradation products increase bioavailability, exacerbating neurotoxicity overall toxicity. findings BMPs' effects remain inconsistent. Further evaluation trade-offs between biodegradability is needed address these uncertainties.

Language: Английский

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Aging properties of polyethylene and polylactic acid microplastics and their adsorption behavior of Cd(II) and Cr(VI) in aquatic environments

Chemosphere, Journal Year: 2024, Volume and Issue: 363, P. 142833 - 142833

Published: July 11, 2024

Language: Английский

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Photochemistry of microplastics-derived dissolved organic matter: Reactive species generation and organic pollutant degradation

Water Research, Journal Year: 2024, Volume and Issue: 269, P. 122802 - 122802

Published: Nov. 17, 2024

Language: Английский

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Impacts of climatic stressors on dissolved organic matter leaching from microplastics and their effects on biogeochemical processes: A review

Water Research, Journal Year: 2024, Volume and Issue: 271, P. 122867 - 122867

Published: Nov. 28, 2024

Language: Английский

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Behavioral and Molecular Neurotoxicity of Thermally Degraded Polystyrene in Caenorhabditis elegans

Journal of Hazardous Materials, Journal Year: 2025, Volume and Issue: 487, P. 137212 - 137212

Published: Jan. 13, 2025

Language: Английский

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Carbon Cycling in Wetlands Under the Shadow of Microplastics: Challenges and Prospects

Toxics, Journal Year: 2025, Volume and Issue: 13(3), P. 143 - 143

Published: Feb. 20, 2025

Wetlands are one of the most crucial ecosystems for regulating carbon sequestration and mitigating global climate change. However, disturbance to dynamics caused by microplastics (MPs) in wetlands cannot be overlooked. This review explores impacts MPs on cycles within wetland ecosystems, focusing underlying physicochemical microbial mechanisms. The accumulation sediments can severely destabilize plant root functions, disrupting water, nutrient, oxygen transport, thereby reducing biomass development. Although may temporarily enhance storage, they ultimately accelerate mineralization organic carbon, leading increased atmospheric dioxide emissions undermining long-term sequestration. A critical aspect this process involves shifts community structures driven selective colonization MPs, which affect decomposition methane production, thus posing a threat greenhouse gas emissions. Notably, dissolved matter derived from biodegradable promote photoaging coexisting enhancing release harmful substances aged further impacting microbial-associated due disrupted metabolic activity. Therefore, it is imperative deepen our understanding adverse effects mechanisms health cycles. Future strategies should incorporate regulation ecological engineering techniques develop effective methodologies aimed at maintaining sustainable capacity affected MP contamination.

Language: Английский

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Co-exposure of TMPs and antibiotics in zebrafish: The influence of additives on the risk of hepatotoxicity

Environmental Research, Journal Year: 2025, Volume and Issue: unknown, P. 121430 - 121430

Published: March 1, 2025

Language: Английский

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Strong Photochemical Activity of Colored Microplastics Containing Cadmium Pigments: Mechanisms and Implications

Environmental Science & Technology, Journal Year: 2025, Volume and Issue: unknown

Published: April 3, 2025

Plastics used in daily life are often colored for esthetic and functional purposes. Nevertheless, little is known about the photochemical activity of microplastics associated risks that ubiquitous environment. In this study, we report strong with cadmium pigments. These can be excited by photons within solar spectrum (<514 nm), readily generating •OH, O2•-, H2O2. Consequently, they effectively degrade 17β-estradiol, achieving >91% degradation 23 h under simulated exposure. Among different pigments, those a pigment S/Se ratio 2:5 exhibited highest photoactivity. This attributed to narrow band gap, fast charge separation, efficient transfer microplastics, as suggested energy band, photocurrent, electrochemical impedance results. Meanwhile, hazardous Cd2+ was leached from mainly owing oxidation lattices photogenerated holes. Our results reveal photoactive inorganic pigments behave drastically differently uncolored counterparts. highlights importance considering critical factor better assessing environmental fate plastic products.

Language: Английский

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Effect of pH and salinity on the release of polystyrene microplastics derived dissolved organic matter as revealed by experimental studies and molecular dynamic simulations

The Science of The Total Environment, Journal Year: 2025, Volume and Issue: 975, P. 179307 - 179307

Published: April 7, 2025

Language: Английский

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