Behavioral and Molecular Neurotoxicity of Thermally Degraded Polystyrene in Caenorhabditis elegans

Journal of Hazardous Materials, Год журнала: 2025, Номер 487, С. 137212 - 137212

Опубликована: Янв. 13, 2025

Язык: Английский

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Effects of long-term exposure to tire wear particle leachate on life-cycle chronic toxicity and potential toxic mechanisms in the marine copepod Tigriopus japonicus

Water Research, Год журнала: 2025, Номер 279, С. 123384 - 123384

Опубликована: Март 1, 2025

Язык: Английский

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

Environmental Science & Technology, Год журнала: 2025, Номер unknown

Опубликована: Апрель 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.

Язык: Английский

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Dynamic process of UV-aging polystyrene microplastics, simultaneous adsorption of drugs, and subsequently coagulative removal together

Journal of Hazardous Materials, Год журнала: 2025, Номер unknown, С. 138100 - 138100

Опубликована: Апрель 1, 2025

Язык: Английский

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Aged Polystyrene Microplastics Accelerate the Photo-Reduction of Chromium(VI)

Water, Год журнала: 2025, Номер 17(7), С. 1102 - 1102

Опубликована: Апрель 7, 2025

Microplastics (MPs) and hexavalent chromium (Cr(VI)) are typical environmental pollutants, yet their interactions in aquatic systems remain poorly understood. This study investigates the mutual influence between Cr(VI) both virgin aged polystyrene microplastics (PS-MPs) under light conditions. Concentration kinetics revealed that total concentration remained stable across all systems, while concentrations decreased over time, indicating PS-MPs accelerate reduction of to Cr(III). Conversely, it had been found promoted aging PS-MPs, this was evidenced by an increase surface roughness generation oxygen-containing functional groups. led a rise O/C ratio carbonyl index, providing additional evidence for PS. Two-dimensional correlation spectroscopy (2D-COS) elucidated exposure, order group alterations PS exhibited opposite trend. Additionally, three-dimensional fluorescence distinct changes characteristics leached substances from pristine PS, with without Cr(VI), dark These results furnish innovative understandings behavior risks associated co-occurrence MPs heavy metals, highlighting complex interplay environments.

Язык: Английский

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Light-Driven Release of 6ppd and Formation of 6ppd-Q from Tire Rubber Particles: Mechanisms and Cytotoxicity

Опубликована: Янв. 1, 2025

Язык: Английский

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Environmental Fate, Toxicity, and Mitigation of 6PPD and 6PPD-Quinone: Current Understanding and Future Directions

Environmental Pollution, Год журнала: 2025, Номер 375, С. 126352 - 126352

Опубликована: Май 1, 2025

Язык: Английский

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Enhanced Photoaging of Functionalized Nanoplastics by Cadmium Ions and Corresponding Diverse Transport Behaviors of Products in Porous Media: Mechanisms and Modeling

Environmental Science & Technology, Год журнала: 2025, Номер unknown

Опубликована: Май 6, 2025

The photoaging of nanoplastics (NPs) mediated by heavy metals and the transport mechanisms products have been widely overlooked. This study demonstrated that cadmium ion (Cd(II)) mediation accelerated polystyrene NPs (carboxyl-modified CNPs, amino-modified ANPs, sulfonate, amino comodified SANPs) generating more •OH 1O2, thereby altering their physicochemical properties consequent behavior. Kinetic attachment models Derjaguin-Landau-Verwey-Overbeek theory proved Cd(II)-mediated process had diverse effects on retention surface-functionalized in water-saturated sand media. In particular, Cd(II) at 50 mg/L increased hydroxyl carboxyl groups aged facilitating 20.3% with reduced k2 (0.036 vs 0.021) φmax (74.804 KBT 85.127 KBT) values. Conversely, enhanced ANP agglomerates driven amino-carboxyl electrostatic attraction ripening adsorption additional heterogeneous surfaces sand. presence reinforced fragments ANPs deposited led to remarkable detachment. Aged SANPs retained original mobility after due negligible changes surface groups, whereas associated a higher k1d (0.347 0.183) became reversible be flushed out water. provided insights for evaluating cocontamination risks watersheds surrounding soils.

Язык: Английский

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Tire wear particles in aquatic environments: From biota to ecosystem impacts

Journal of Environmental Management, Год журнала: 2025, Номер 388, С. 126059 - 126059

Опубликована: Июнь 1, 2025

Язык: Английский

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Hepatotoxicity, Developmental toxicity, and Neurotoxicity Risks Associated with Co-exposure of Zebrafish to Fluoroquinolone Antibiotics and Tire Microplastics: An In Silico Study

Journal of Hazardous Materials, Год журнала: 2024, Номер 485, С. 136888 - 136888

Опубликована: Дек. 15, 2024

Язык: Английский

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