Short-term impacts of polyethylene and polyacrylonitrile microplastics on soil physicochemical properties and microbial activity of a marine terrace environment in maritime Antarctica

Environmental Pollution, Год журнала: 2024, Номер 347, С. 123791 - 123791

Опубликована: Март 13, 2024

Язык: Английский

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Exposure to nanoplastics and nanomaterials either single and combined affects the gill-associated microbiome of the Antarctic soft-shelled clam Laternula elliptica

Marine Environmental Research, Год журнала: 2024, Номер 198, С. 106539 - 106539

Опубликована: Май 6, 2024

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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Progress in selecting marine bioindicators for nanoplastics ecological risk assessment

Ecological Indicators, Год журнала: 2023, Номер 154, С. 110836 - 110836

Опубликована: Авг. 20, 2023

Nanoplastic (<1 µm) pollution in the marine environment is a cause of growing concern due to current difficulties measuring their occurrence abiotic and biotic matrices, with consequent uncertainties on ecological risk for natural communities associated ecosystem services. Most investigations dealing nano-ecotoxicity have been conducted bench-scale by examining effects single model species under short-term exposure conditions at high concentrations (>50 mgL−1). Both negligible impacts detrimental effects, although poorly descriptive real environmental scenarios, documented different trophic levels functionalities. Polystyrene nanospheres (<100 nm) are far most tested as proxy nanoplastics, even though nanoplastics composed other polymers shapes (i.e., irregular fibers) has reported seawater column sediments. Limited information bioaccumulation hamper selection key bioindicator following various criteria target, highly sensitive, endangered, etc) monitoring assessment (ERA) purposes. A holistic approach thus required starting from setting environmentally relevant coupled chronic exposure, selecting bioindicators including those having role processes, functions services, also human consumption (shellfish seafood). The present mini-review aims provide framework best nanoplastic along knowledge sources, circulation behavior temperate polar environments potential compartments/species more support ERA. Less investigated niches habitats, which should deserve attention future studies, identified.

Язык: Английский

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Polymer blends of poly(lactic acid) and starch for the production of films applied in food packaging: A brief review

Polymers from Renewable Resources, Год журнала: 2023, Номер 14(2), С. 108 - 153

Опубликована: Фев. 6, 2023

The limited degradation of synthetic polymers used in food packaging when discarded the environment is a major concern for society. Therefore, industry and academia have sought to develop biodegradable eco-friendly materials single-use packaging. An interesting alternative polymeric films, which why different biopolymers been production sustainable It worth mentioning that use one most successful innovations address issues related environment. Among available raw materials, starch extracted from renewable sources very promising this purpose, due its abundance, low-cost compared other ability produce non-toxic films. However, alone, pure has many limitations, can be overcome by developing mixture with (polymer blends), preferably sources, such as poly(lactic acid) (PLA). In context, absence literature reviews evidencing results application films foods led us write article, given importance polymer blends produced types (cassava, corn, pea, potato, rice wheat) PLA matrix. According results, it clear based on PLA/Starch are promising, already being part industries solutions, aiming minimize large volume plastic waste petrochemical origin nature. Obviously, any technology, more research needed further improve performance while much made great strides, there still limitations prevent commercialization these materials.

Язык: Английский

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