Current advances in interactions between microplastics and dissolved organic matters in aquatic and terrestrial ecosystems

TrAC Trends in Analytical Chemistry, Journal Year: 2022, Volume and Issue: 158, P. 116882 - 116882

Published: Dec. 10, 2022

Language: Английский

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Micro(nano)plastic size and concentration co-differentiate nitrogen transformation, microbiota dynamics, and assembly patterns in constructed wetlands

Water Research, Journal Year: 2022, Volume and Issue: 220, P. 118636 - 118636

Published: May 19, 2022

Language: Английский

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Effects of Microplastics on Soil Carbon Mineralization: The Crucial Role of Oxygen Dynamics and Electron Transfer

Environmental Science & Technology, Journal Year: 2023, Volume and Issue: 57(36), P. 13588 - 13600

Published: Aug. 30, 2023

Although our understanding of the effects microplastics on dynamics soil organic matter (SOM) has considerably advanced in recent years, fundamental mechanisms remain unclear. In this study, we examine polyethylene and poly(lactic acid) SOM processes via mineralization incubation. Accordingly, evaluated changes carbon dioxide (CO2) methane (CH4) production. An O2 planar optical sensor was used to detect temporal behavior dissolved during incubation determine microscale oxygen heterogeneity caused by microplastics. Additionally, (DOM) were using a combination spectroscopic approaches ultrahigh-resolution mass spectrometry. Microplastics increased cumulative CO2 emissions 160–613%, whereas CH4 dropped 45–503%, which may be attributed oxygenated porous habitats surrounding Conventional biodegradable changed quantities carbon. microplastic treatments, DOM with more polar groups detected, suggesting higher level electron transport. addition, there positive correlation between concentration, electron-donating ability, emission. These findings suggest that facilitate modifying microenvironments, transport capability. study provides new insights into impact dynamics.

Language: Английский

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Recent advances in the research on effects of micro/nanoplastics on carbon conversion and carbon cycle: A review

Journal of Environmental Management, Journal Year: 2023, Volume and Issue: 334, P. 117529 - 117529

Published: Feb. 17, 2023

Language: Английский

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Photo-oxidation of Micro- and Nanoplastics: Physical, Chemical, and Biological Effects in Environments

Environmental Science & Technology, Journal Year: 2024, Volume and Issue: 58(2), P. 991 - 1009

Published: Jan. 3, 2024

Micro- and nanoplastics (MNPs) are attracting increasing attention due to their persistence potential ecological risks. This review critically summarizes the effects of photo-oxidation on physical, chemical, biological behaviors MNPs in aquatic terrestrial environments. The core this paper explores how photo-oxidation-induced surface property changes affect adsorption toward contaminants, stability mobility water porous media, as well transport pollutants such organic (OPs) heavy metals (HMs). It then reviews photochemical processes with coexisting constituents, highlighting critical factors affecting MNPs, contribution phototransformation other contaminants. distinct mechanism aged pointed out, terms toxicity organisms, biofilm formation, planktonic microbial growth, soil sediment community function. Furthermore, research gaps perspectives put forward, regarding underlying interaction mechanisms natural constituents under conditions, combined fate microbiological effect photoaged especially biotransformation pollutants.

Language: Английский

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Elucidating the characteristic of leachates released from microplastics under different aging conditions: Perspectives of dissolved organic carbon fingerprints and nano-plastics

Water Research, Journal Year: 2023, Volume and Issue: 233, P. 119786 - 119786

Published: Feb. 22, 2023

Language: Английский

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Microbial metabolism influences microplastic perturbation of dissolved organic matter in agricultural soils

The ISME Journal, Journal Year: 2024, Volume and Issue: 18(1)

Published: Jan. 1, 2024

Abstract An estimated 258 million tons of plastic enter the soil annually. Joining persistent types microplastic (MP), there will be an increasing demand for biodegradable plastics. There are still many unknowns about pollution by either type, and one large gap is fate composition dissolved organic matter (DOM) released from MPs as well how they interact with microbiomes in agricultural systems. In this study, polyethylene MPs, photoaged to different degrees, virgin polylactic acid were added at levels incubated 100 days address knowledge gap. We find that, upon MP addition, labile components low aromaticity degraded transformed, resulting increased oxidation degree, reduced molecular diversity, changed nitrogen sulfur contents DOM. Terephthalate, acetate, oxalate, L-lactate DOM 4-nitrophenol, propanoate, nitrate major molecules available microbiomes. The bacteria involved metabolism mainly concentrated Proteobacteria, Actinobacteriota, Bacteroidota, fungi Ascomycota Basidiomycota. Our study provides in-depth understanding microbial transformation its effects evolution soils.

Language: Английский

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Microplastic pollution as an environmental risk exacerbating the greenhouse effect and climate change: a review

Carbon Research, Journal Year: 2024, Volume and Issue: 3(1)

Published: Jan. 26, 2024

Abstract Microplastics are polymer-based materials with carbon as their main framework. During degradation, they release greenhouse gases such dioxide and methane. Additionally, environmental microplastics can enter plant tissues, triggering oxidative stress in cells, adversely affecting photosynthesis, metabolism, gene expression, other growth parameters. This reduction efficiency sequestering utilizing atmospheric indirectly impacts global cycling, exacerbating the effect. Furthermore, significantly alter soil structure composition of microbial communities, emissions dioxide, methane, nitrous oxide, thus promoting gas emissions. Increasing research suggests a mutual reinforcement between microplastic pollution climate warming, where exacerbates rise average temperature leads to resuspension sediments, intensifying environment. article primarily focuses on different ecosystems relationship warming. It summarizes effects marine, terrestrial, ecosystems, well mechanisms by which change affect ecosystem services. By delving into intricate connection emissions, this paper aims raise awareness caused calls for further change, ultimate goal protecting human health. Graphical

Language: Английский

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The environmental effects of microplastics and microplastic derived dissolved organic matter in aquatic environments: A review

The Science of The Total Environment, Journal Year: 2024, Volume and Issue: 933, P. 173163 - 173163

Published: May 11, 2024

Language: Английский

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Unveiling the Vertical Migration of Microplastics with Suspended Particulate Matter in the Estuarine Environment: Roles of Salinity, Particle Properties, and Hydrodynamics

Environmental Science & Technology, Journal Year: 2024, Volume and Issue: 58(6), P. 2944 - 2955

Published: Feb. 2, 2024

The estuary is an energetic area connecting the inland, river, and ocean. migration of microplastics (MPs) in this highly complex tied to entire ecosystem. In study, effects cohesive SPM (clay) noncohesive (sand) on vertical positively buoyant MPs, polyethylene (PE), negatively polytetrafluoroethylene (PTFE), estuarine environment under hydrodynamic disturbances were investigated. settling MPs was more reliant compared MPs. Moreover, interacting with mixture at a clay-to-sand ratio 1:9 settled efficiently than those clay alone. A significant positive correlation observed between MP percentage salinity level. significantly correlated fluid shear stress for both types meanwhile, able resist greater hydraulic disturbances. low-energy mixing state, reached about 50% only 10 min. resuspension process also uncovered. Additionally, potential sites described context prevalent environmental phenomena estuaries.

Language: Английский

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