Influence of mesh selectivity on risk assessment of marine microplastics

Marine Pollution Bulletin, Год журнала: 2025, Номер 212, С. 117538 - 117538

Опубликована: Янв. 9, 2025

Язык: Английский

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Emerging threats of microplastics on marine environment: A critical review of toxicity measurement, policy practice gap and future research direction

Journal of Cleaner Production, Год журнала: 2023, Номер 434, С. 139941 - 139941

Опубликована: Дек. 1, 2023

Язык: Английский

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Spectral analysis of environmental microplastic polyethylene (PE) using average spectra

The Science of The Total Environment, Год журнала: 2024, Номер 927, С. 171871 - 171871

Опубликована: Март 24, 2024

Язык: Английский

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Accessing the intrinsic factors of carbonyl index of microplastics: Physical and spectral properties, baseline correction, calculation methods, and their interdependence

Marine Pollution Bulletin, Год журнала: 2023, Номер 197, С. 115700 - 115700

Опубликована: Окт. 31, 2023

Язык: Английский

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Vertical Flux of Microplastics in the Deep Subtropical Pacific Ocean: Moored Sediment-Trap Observations within the Kuroshio Extension Recirculation Gyre

Environmental Science & Technology, Год журнала: 2024, Номер 58(36), С. 16121 - 16130

Опубликована: Авг. 26, 2024

The Kuroshio Extension recirculation gyre in the western North Pacific is an accumulation site of plastic litter transported by Current. A sediment trap was moored at a depth 4900 m Station KEO within gyre, and vertical flux microplastics sinking particles size <1 mm observed. Forty-one sediment-trap samples collected from July 1, 2014, to October 2, 2016, were analyzed with micro-Fourier transform infrared spectrometer detected all samples. Seventeen polymer types identified, 90% less than 100 μm size. Microplastic driven action biological pump, which turn seasonal variations solar radiation increased surface primary production typical spring season. mass varied 4.5 × 10–3 0.38 mg m–2 day–1 during sampling period, mean standard deviation 0.054 ± 0.075 day–1. Extrapolating annual microplastic entire it estimated that 0.028 million metric tons are annually this area.

Язык: Английский

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Comprehensive Understanding on the Aging Process and Mechanism of Microplastics in the Sediment–Water Interface: Untangling the Role of Photoaging and Biodegradation

Environmental Science & Technology, Год журнала: 2024, Номер 58(36), С. 16164 - 16174

Опубликована: Авг. 27, 2024

Microplastics (MPs) in coastal wetlands have been of great concern, but information on the aging behavior MPs sediment-water interface is still lacking. In this study, contribution a typical abiotic (photoaging) and biotic (biodegradation) process underlying pathway with different degradabilities (including polypropylene, polyethylene terephthalate, polylactic acid) were studied. With quantified relative importance photoaging (>55%) vs biodegradation, crucial MP was highlighted. This likely attributed to more generation reactive oxygen species (ROS) under sunlight irradiation conditions, containing O

Язык: Английский

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Concentrations and carbonyl index of microplastic in surface seawater in southeastern coastal region off Japan, Northwestern Pacific

Marine Pollution Bulletin, Год журнала: 2024, Номер 208, С. 116957 - 116957

Опубликована: Сен. 10, 2024

Язык: Английский

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Challenges of Raman spectra to estimate carbonyl index of microplastics: A case study with environmental samples from sea surface

Marine Pollution Bulletin, Год журнала: 2023, Номер 194, С. 115362 - 115362

Опубликована: Авг. 5, 2023

Язык: Английский

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Reduction scenarios of plastic waste emission guided by the probability distribution model to avoid additional ocean plastic pollution by 2050s

Marine Pollution Bulletin, Год журнала: 2024, Номер 207, С. 116791 - 116791

Опубликована: Авг. 8, 2024

Marine plastic pollution is progressing worldwide and will become increasingly serious if waste emissions continue at the current rate or increase with economic growth. Here, we report a particle tracking-based probability distribution model for predicting abundances of marine macroplastics microplastics, which undergo generation, transport, removal processes in world's upper ocean, under various scenarios future land-to-sea emissions. To achieve Osaka Blue Ocean Vision, aims to reduce additional by litter zero 2050, emission ∼2035 should be reduced least 32 % relative 2019. It necessary take stringent measures such as 'system change scenario' 'improve management proposed previous studies 2050.

Язык: Английский

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Floating microplastic inventories in the southern Beaufort Sea, Arctic Ocean

Frontiers in Marine Science, Год журнала: 2023, Номер 10

Опубликована: Окт. 12, 2023

The microplastics inflow into the Arctic Ocean may increase environmental stress on marine ecosystem Pacific side, where sea ice has been significantly reduced because of global warming. However, quantitative data are very limited in Beaufort Sea, which is covered by for most year, even summer. We therefore observed microplastic concentrations over a wide area southern Sea using neuston net from 30 August to 10 September 2022 estimate total number (particle inventory) and mass (mass entire water column. particle inventory during sampling period ranged 937 28,081 pieces km −2 (mean ± standard deviation, 7570 7600 ). 22 664 g (179 180 Relatively high inventories (&gt;6500 ) were off Utqiaġvik mouth Mackenzie River, suggesting that some originate not only but also Arctic. These values indicate waters contaminated with same order magnitude as Chukchi Sea.

Язык: Английский

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