Spatial distribution and risk assessment of microplastics in surface waters of the St. Lawrence Estuary

The Science of The Total Environment, Год журнала: 2024, Номер 946, С. 174324 - 174324

Опубликована: Июль 1, 2024

Development of effective prevention and mitigation strategies for marine plastic pollution requires a better understanding the pathways transport mechanisms waste. Yet role estuaries as key interface between riverine inputs delivery to receiving environments remains poorly understood. This study quantified concentration distribution microplastics (MPs) (50-3200 μm) in surface waters St. Lawrence Estuary (SLE) eastern Canada. Microplastics were identified enumerated based on particle morphology, colour, size class. Fourier Transform Infrared (FTIR) spectroscopy was used subset particles identify polymers. Generalized linear models (Gamma with log-link) examined relationship MP concentrations oceanographic variables anthropogenic sources. Finally, risk assessment model, using chemical hazards polymer types, estimated ecosystem health. Mean SLE 120 ± 42 SD m

Язык: Английский

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Introduction to the Marine Policy special issue on abandoned, lost and discarded fishing gear: Causes, magnitude, impacts, mitigation methods and priorities for monitoring and evidence-informed management

Marine Policy, Год журнала: 2023, Номер 155, С. 105738 - 105738

Опубликована: Июль 5, 2023

Язык: Английский

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Biovectoring of plastic by white storks from a landfill to a complex of salt ponds and marshes

Marine Pollution Bulletin, Год журнала: 2023, Номер 197, С. 115773 - 115773

Опубликована: Ноя. 22, 2023

Research into plastic pollution has extensively focused on abiotic vectors, overlooking transport by animals. Opportunistic birds, such as white storks (Ciconia ciconia) often forage landfills, where abounds. We assess loading ingestion and regurgitation of landfill in Cadiz Bay, a major stopover area for migratory south-west Spain. On average, we counted 599 per day moving between complex salt ponds marshes, they regurgitated pellets that each contained mean 0.47 g debris, dominated polyethylene. Modelling reliant GPS tracking estimated 99 kg >2 million particles were biovectored the wetland during 2022, with seasonal peaks followed migration patterns. data enabled correction field censuses identification deposition hotspots. This study highlights important role biovectoring plays coastal wetlands.

Язык: Английский

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Microplastics in Farmed Animals—A Review

Microplastics, Год журнала: 2024, Номер 3(4), С. 559 - 588

Опубликована: Сен. 30, 2024

Environmental pollution from plastics has become one of the biggest concerns globally. Microplastics (MPs) are plastic materials less than 5 mm in size. They remain environment for hundreds to thousands years without degrading, only breaking down further nanoplastics (NPs). Micro- and can be origin many diseases carry various pathogenic substances on their surface spread them throughout biosphere, starting with contained additives ending adsorbed toxins potentially microorganisms. Exposure routes humans animals through air, water food/feed. Due placement livestock—including ruminants, fish poultry—and at top food web, any water, air or soil eventually transferred livestock humans. The presence microplastics intestines aquaculture species, ruminants poultry, instance, was found cause a change intestinal microbial population and, as result, occurrence diseases. These particles have also been observed other organs such liver, kidneys, lung, spleen, heart, ovaries, testicles animals, which causes biochemical changes, structural destruction, malfunction. While complete extent negative health impacts remains still largely unknown, ubiquitous transmission chemicals organisms is notable issue, underscoring importance gaining more comprehensive understanding potential threats posed by animal ultimately human health, coupled need drastic reduction freight into environment. This review article summarizes recent findings effect micro- farmed ultimately, Action needed reduce number thereby humans, exposed.

Язык: Английский

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Accumulation and release of organic pollutants by conventional and biodegradable microplastics in the marine environment

Environmental Science and Pollution Research, Год журнала: 2023, Номер 30(31), С. 77819 - 77829

Опубликована: Июнь 2, 2023

Язык: Английский

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