The Complex Dynamics of Microplastic Migration through Different Aquatic Environments: Subsidies for a Better Understanding of Its Environmental Dispersion

Almeida, M. P.; Gaylarde, Christine C.; Lima, Leonardo da Silva; Delgado, Jessica; Scott, Danniela; Neves, Charles V.; Vieira, Khauê Silva; Neto, José Antônio Baptista; Fonseca, Estefan Monteiro da

doi:10.3390/microplastics2010005

Cited by 15 publications

(4 citation statements)

References 115 publications

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“…And the plastic breaks down into low-molecular-weight compounds that can then be metabolised by microorganisms (Napper & Thompson, 2019;Yuan et al, 2020). Abiotic thermodegradation increases with increasing temperature, the rate of reaction doubles for every 10 degrees C. Temperature has an impact on the mobility of the polymer chains, which then influences enzymatic activity during microbial degradation and also the rate of hydrolysis through free radical formation, oxygen diffusion rate, and moisture content (Ali et al, 2021;Almeida et al, 2023;Napper & Thompson, 2019). In the conducted experiments, constant temperature conditions were ensured only in (matrix: tap water/lighting: 0h).…”

Section: Visual Characteristics Of Changes In Film and Print Qualitymentioning

confidence: 99%

Evaluation of the migration potential of printed plastic films into the aquatic environment

Edyta

2024

Preprint

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This study aimed to evaluate the degree of contamination of water matrices (deionised water, spring water, tap water) in a 14-week experiment using film samples from commercial bags printed with water- and solvent-based inks. The effect of different lighting conditions on leaching and ecotoxicity was also investigated. Samples were exposed for 24 hours to natural sunlight and to no light in a darkroom. A significant increase in contaminants in the aqueous matrices was observed in the 12-week leaching potential of the components from the films in all the lighting variants and aqueous matrices analysed: an increase in dissolved organic carbon (DOC), total organic carbon (TOC) and total suspended solids (TSS). Based on the procedures carried out, the relationship between lighting conditions and the amount of constituents released into the aqueous matrices was not confirmed. The concentration of total organic carbon in all samples peaked between weeks 6 and 9 of the study, followed by a gradual reduction in leaching. This phenomenon could be linked to the gradual depletion of the substances present in the samples or to the achievement of a concentration equilibrium between the aqueous matrix and the sample and/or to the formation of deposits on the surface of the films, which hindered the migration of substances into solutions. Ecotoxicity tests performed between 7 and 14 weeks showed most samples' toxic and highly toxic effects on the growth of Lemna minor fronds and Sinapis alba/Lepidium sativum roots. In contrast, no toxic effects were observed in most samples in screening mortality tests on Daphnia magna and Artemia salina. The study highlights the need for further research into the effects of plastic pollution on the aquatic environment.

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Section: Visual Characteristics Of Changes In Film and Print Qualitymentioning

confidence: 99%

Evaluation of the migration potential of printed plastic films into the aquatic environment

Edyta

2024

Preprint

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“…Sources of MPs for the oceans include terrestrial runoff [67] , plastic industrial wastes [68] , abandoned fishing nets [69] and many others. Anthropogenic activities on the coasts, including fishing, aquaculture [70] and tourism, also represent important sources of MPs for saltwater environments.…”

Section: The Aquatic Compartmentsmentioning

confidence: 99%

The prevalence of microplastics on the earth and resulting increased imbalances in biogeochemical cycling

Almeida¹,

Gaylarde²,

Neto³

et al. 2023

Water Emerg Contam Nanoplastics

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The biogeochemical cycles are responsible for the constant transfer and transformation of matter and energy between the biosphere and the other active reservoirs of the planet. During the progress of a biogeochemical cycle, a series of molecular species (ecological “nutrients”) are constantly transferred and chemically altered. Plastic, a new material, has now begun to participate in the biogeochemical cycles. More than just participating, microplastics are interfering with the normal flow of these processes insofar as they can block the transfer of some elements and serve as a shortcut for others. These new materials can increase the bioavailability of pollutants and thus interfere with physiological activities. The results of this interference have not yet been fully evaluated, but in view of the universal presence of these particles in the most varied ecosystems of the planet, urgent measures must be taken to mitigate the negative effects of this invasion. The present review seeks to establish a global view of the distribution of microplastics around the planet and their impact on the main biogeochemical cycles, thus emphasizing the need for the development of adequate management and remediation strategies in the coming years.

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“…After arriving in the soil ecosystem, MPs can be transferred either horizontally or vertically, mobilized by abiotic (wind and water fluxes) or biotic (bioturbation) agents. Characteristics of the particle (shape, density, weight, and size) or the environment (substrate porosity, permeability, or grain size) will determine the behavior of the particle [54]. Water fluxes can move MPs through the soil interstitial pores [55].…”

Section: Potential Impact Of Microplastics On Agriculturementioning

confidence: 99%

The Impact of Microplastics on Global Food Production: A Brief Overview of This Complex Sector

Corrêa,

Gaylarde,

Baptista Neto

et al. 2023

Microplastics

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Environmental pollution management combined with food safety represents two of the main challenges of the last decades. Soil and water contamination has historically threatened food safety. As ubiquitous pollutants, microplastics (MPs) have attracted increasing attention over the last few years. These particles can affect the balance of terrestrial, aquatic, and aerial ecosystems. Their negative impacts are intensified when they adsorb and carry toxic chemicals. They can circulate through organisms and accumulate in human beings via food and water. Physiological dysfunctions in all species continue to be reported, both in terrestrial and aquatic ecosystems. This article considers how this might be affecting the global production of food. It reports the adverse effects induced by MPs in soils, their properties and organisms growing within and upon them, including livestock and the pollinating agents necessary for plant growth. A separate section discusses the effects of MPs on aquaculture, mentioning effects on wild species, as well as farmed fish. The growing concern of the food production sector with MPs mimics that of the world with global warming; the danger is real and requires urgent attention.

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The Complex Dynamics of Microplastic Migration through Different Aquatic Environments: Subsidies for a Better Understanding of Its Environmental Dispersion

Cited by 15 publications

References 115 publications

Evaluation of the migration potential of printed plastic films into the aquatic environment

Evaluation of the migration potential of printed plastic films into the aquatic environment

The prevalence of microplastics on the earth and resulting increased imbalances in biogeochemical cycling

The Impact of Microplastics on Global Food Production: A Brief Overview of This Complex Sector

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