The “Microplastome” – A Holistic Perspective to Capture the Real-World Ecology of Microplastics

Environmental Science & Technology, Год журнала: 2024, Номер unknown

Опубликована: Фев. 8, 2024

Microplastic pollution, an emerging pollution issue, has become a significant environmental concern globally due to its ubiquitous, persistent, complex, toxic, and ever-increasing nature. As multifaceted diverse suite of small plastic particles with different physicochemical properties associated matters such as absorbed chemicals microbes, future research on microplastics will need comprehensively consider their multidimensional attributes. Here, we introduce novel, conceptual framework the "microplastome", defined entirety various (<5 mm), found within sample overall toxicological impacts. novel concept, this paper aims emphasize call for collective quantification characterization more holistic understanding regarding differences, connections, effects in biotic abiotic ecosystem compartments. Deriving from lens, present our insights prospective trajectories characterization, risk assessment, source apportionment microplastics. We hope new paradigm can guide propel microplastic toward era contribute informed strategy combating important issue.

Язык: Английский

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Bioelectrochemical systems – A potentially effective technology for mitigating microplastic contamination in wastewater

Journal of Cleaner Production, Год журнала: 2024, Номер 450, С. 141931 - 141931

Опубликована: Март 25, 2024

Язык: Английский

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Microplastic pollution promotes soil respiration: A global‐scale meta‐analysis

Global Change Biology, Год журнала: 2024, Номер 30(7)

Опубликована: Июль 1, 2024

Abstract Microplastic (MP) pollution likely affects global soil carbon (C) dynamics, yet it remains uncertain how and to what extent MP influences respiration. Here, we report on a meta‐analysis determine the effects of microbiome CO 2 emission. We found that significantly increased contents organic C (SOC) (21%) dissolved (DOC) (12%), activity fluorescein diacetate hydrolase (FDAse) (10%), microbial biomass (17%), but led decrease in diversity (3%). In particular, increases components further promote emission (25%) from soil, with much higher effect MPs these emissions than biomass. The could be attributed opposite vs. diversity, as accumulation recruited some functionally important bacteria provided additional substrates for specific heterotrophic microorganisms, while inhibiting growth autotrophic taxa (e.g., Chloroflexi , Cyanobacteria ). This study reveals can increase by causing shifts microbiome. These results underscore potential importance plastic terrestrial fluxes, thus climate feedbacks.

Язык: Английский

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Photodegradation of biodegradable plastics in aquatic environments: Current understanding and challenges

The Science of The Total Environment, Год журнала: 2023, Номер 911, С. 168539 - 168539

Опубликована: Ноя. 18, 2023

Язык: Английский

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DOM Associates with Greenhouse Gas Emissions in Chinese Rivers under Diverse Land Uses

Environmental Science & Technology, Год журнала: 2023, Номер 57(40), С. 15004 - 15013

Опубликована: Окт. 2, 2023

Growing evidence indicates that rivers are hotspots of greenhouse gas (GHG) emissions and play multiple roles in the global carbon budget. However, terrestrial from land use river GHG remain largely unknown. We studied microbial composition, dissolved organic matter (DOM) properties, emission responses to different landcovers (n = 100). The bacterial community was mainly constrained by land-use intensity, whereas fungal controlled DOM chemical composition (e.g., with high photoreactivity). Anthropogenic stressors gross regional domestic product, total population) were main factors affecting chromophoric (CDOM). biodegradability exhibited a positive correlation CDOM contributed activity for transformation. Variations CO2 CH4 governed biodegradation or photomineralization derived autotrophic indirectly affected via changes properties water chemistry. Because offset some climatic benefits (or ocean) sinks, intensified urban inevitably alters cycling microclimate.

Язык: Английский

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Key Role of Vegetation Cover in Alleviating Microplastic-Enhanced Carbon Emissions

Environmental Science & Technology, Год журнала: 2024, Номер unknown

Опубликована: Фев. 6, 2024

Microplastics (MPs) are considered to influence fundamental biogeochemical processes, but the effects of plant residue-MP interactions on soil carbon turnover in urban greenspaces virtually unknown. Here, an 84-day incubation experiment was constructed using four types single-vegetation-covered soils (6 years), showing that polystyrene MP (PSMP) pollution caused unexpectedly large increase CO2 emissions. The additional originating from highly bioavailable active dissolved organic matter molecules (<380 °C, predominantly polysaccharides) converted persistent (380–650 aromatic compounds) rather than PSMP derivatives. However, priming effect derivatives weakened plant-driven (resistivity: shrub > tree grass). This can be explained two perspectives: (1) Plant residue-driven humification processes reduced percentage derived PSMPs. (2) residues accelerated bacterial community succession (dominated by residue types) slowed fungal demise (retained turnover-related functional taxa), enabling specific enrichment glycolysis, citric acid cycle and pentose phosphate pathway. These results provide a necessary theoretical basis understand role reducing harm at ecological level refresh knowledge about importance biodiversity for ecosystem stability.

Язык: Английский

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Regulatory path for soil microbial communities depends on the type and dose of microplastics

Journal of Hazardous Materials, Год журнала: 2024, Номер 473, С. 134702 - 134702

Опубликована: Май 22, 2024

Язык: Английский

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Integrated multilevel investigation of photosynthesis revealed the algal response distinction to differentially charged nanoplastics

Journal of Hazardous Materials, Год журнала: 2024, Номер 475, С. 134815 - 134815

Опубликована: Июнь 6, 2024

Язык: Английский

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Molecular Weights of Dissolved Organic Matter Significantly Affect Photoaging of Microplastics

Environmental Science & Technology, Год журнала: 2024, Номер 58(31), С. 13973 - 13985

Опубликована: Июль 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.

Язык: Английский

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Microplastics and potentially toxic elements: A review of interactions, fate and bioavailability in the environment

Environmental Pollution, Год журнала: 2023, Номер 340, С. 122754 - 122754

Опубликована: Окт. 14, 2023

Язык: Английский

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