Analysis of aged microplastics: a review

Environmental Chemistry Letters, Journal Year: 2024, Volume and Issue: 22(4), P. 1861 - 1888

Published: April 4, 2024

Abstract Microplastics are emerging contaminants that undergo progressive aging under environmental conditions such as sunlight irradiation, mechanical forces, temperature variations, and the presence of biological organisms. Since modifies microplastic properties, their own toxicity trapped pollutants, advanced methods to analyze microplastics required. Here we review with focus on process, qualitative identification, quantitative characterization, chemometrics. Qualitative identification is done by techniques, thermal e.g., degradation gas chromatography–mass spectrometry, spectral infrared, Raman, fluorescent, laser techniques. Quantitative characterization microscopy mass spectrometry. Microplastic results in a series surface physical changes, biofilm formation, chemical oxidation, alternation, deterioration. Changes properties allow differentiate aged microplastics. Infrared Raman spectroscopy rapid sensitive for complex samples. Combining two techniques preferable accurate detection categorization.

Language: Английский

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Complex Release Dynamics of Microplastic Additives: An Interplay of Additive Degradation and Microplastic Aging

Journal of Hazardous Materials, Journal Year: 2025, Volume and Issue: 490, P. 137711 - 137711

Published: Feb. 22, 2025

Language: Английский

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Size-dependent long-term weathering converting floating polypropylene macro- and microplastics into nanoplastics in coastal seawater environments

Water Research, Journal Year: 2023, Volume and Issue: 242, P. 120165 - 120165

Published: June 10, 2023

Language: Английский

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Are you drowned in microplastic pollution? A brief insight on the current knowledge for early career researchers developing novel remediation strategies

The Science of The Total Environment, Journal Year: 2024, Volume and Issue: 918, P. 170382 - 170382

Published: Feb. 1, 2024

Microplastics (MPs) composed of different polymers with various shapes, within a vast granulometric distribution (1 μm - 5 mm) and wide variety physicochemical surface bulk characteristics spiral around the globe, atmospheric, oceanic, cryospheric, terrestrial residence times, while interacting other pollutants biota. The challenges microplastic pollution are related to complex relationships between generation mechanisms (physical, chemical, biological), their properties, interactions microorganisms, changes in properties aging, small sizes that facilitate diffusion transportation air, water, land, biota, thereby promoting ubiquity. Early career researchers (ERCs) constitute an essential part scientific community committed overcoming new ideas innovative perspectives for development remediation technologies. However, because enormous amount information available, it may be difficult ERCs determine complexity this environmental issue. This mini-review aims provide quick updated overview insights help them acquire background needed develop highly physical, biological technologies, as well valorization proposals education awareness campaigns. Moreover, recommendations holistic strategies presented here can propose technologies considering environmental, social, practical dimensions fulfilling current government policies manage plastic waste.

Language: Английский

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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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Biodegradable microplastics aging processes accelerated by returning straw in paddy soil

The Science of The Total Environment, Journal Year: 2024, Volume and Issue: 945, P. 173930 - 173930

Published: June 14, 2024

Language: Английский

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Soil nitrogen deficiency aggravated the aging of biodegradable microplastics in paddy soil under the input of organic substances with contrasting C/N ratios

Journal of Hazardous Materials, Journal Year: 2025, Volume and Issue: 487, P. 137176 - 137176

Published: Jan. 10, 2025

Language: Английский

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Interfacial interactions of submicron plastics with carbon dots: insights into the interface properties of microplastic weathering

Water Research, Journal Year: 2025, Volume and Issue: 277, P. 123377 - 123377

Published: Feb. 23, 2025

Language: Английский

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Molecular Weights of Dissolved Organic Matter Significantly Affect Photoaging of Microplastics

Environmental Science & Technology, Journal Year: 2024, Volume and Issue: 58(31), P. 13973 - 13985

Published: July 24, 2024

The fate of ubiquitous microplastics (MPs) is largely influenced by dissolved organic matter (DOM) in aquatic environments, which has garnered significant attention. reactivity DOM reported to be greatly regulated molecular weights (MWs), yet little known about the effects different MW on MP aging. Here, aging behavior polystyrene MPs (PSMPs) presence fulvic acids (FAs) and humic (HAs) was systematically investigated. Under ultraviolet (UV) illumination, O/C PSMPs aged for 96 h surged from 0.008 0.146 lower FA (FA<1kDa) treatment, suggesting PSMP However, exhibited a stronger effect facilitating photoaging than HA, can attributed fact that FA<1kDa contains more quinone phenolic moieties, demonstrating higher redox capacity. Meanwhile, compared other fractions, actively involved increase reactive species yields 50–290%, including •OH, plays key role photoaging, contributed 25% electron-donating capacity (EDC). This study lays theoretical foundation better understanding environmental MPs.

Language: Английский

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Seasonal variation and removal of microplastics in a central Asian urban wastewater treatment plant

Marine Pollution Bulletin, Journal Year: 2024, Volume and Issue: 205, P. 116597 - 116597

Published: June 18, 2024

Language: Английский

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