Plastic Contamination in Brazilian Freshwater and Coastal Environments: A Source-to-Sea Transboundary Approach

Lima, André R. A.; Silva, Manuela D.; Possatto, Fernanda E.; Ferreira, Guilherme V.B.; Krelling, Allan Paul

doi:10.1007/698_2020_514

Cited by 10 publications

(9 citation statements)

References 63 publications

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“…U.S. Microbead-Free Waters act of 2015 and European Commission, 2018). Therefore, during the 2019 Basel Conference in Geneva, Switzerland, ~180 governments identified plastics as hazardous wastes due to their toxicity, capacity of adsorbing pollutants and of fragmentation (Lima et al, 2020). The Basel Convention on the Control of Transboundary Movements of Hazardous Wastes and their Disposal is an international treaty aiming at reducing the movements of hazardous waste between nations (Niaounakis, 2017;Raubenheimer et al, 2018).…”

Section: Introductionmentioning

confidence: 99%

“…Examples of MF sources are related to the release by washing machines and the use and maintenance of fishing nets, as observed worldwide, especially in underdeveloped countries (Wu et al, 2019;Li et al, 2020). This emphasizes that the widespread global pollution is connected by international impacts (Lima et al, 2014(Lima et al, , 2020Lebreton et al, 2017).…”

Section: Introductionmentioning

confidence: 99%

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Global patterns for the spatial distribution of floating microfibers: Arctic Ocean as a potential accumulation zone

Lima¹,

Ferreira

Barrows

et al. 2021

Journal of Hazardous Materials

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Despite their representativeness, most studies to date have underestimated the amount of microfibers (MFs) in the marine environment. Therefore, further research is still necessary to identify key processes governing MF distribution. Here, the interaction among surface water temperature, salinity, currents and winds explained the patterns of MF accumulation. The estimated density of floating MFs is ~5900 ± 6800 items m − 3 in the global ocean; and three patterns of accumulation were predicted by the proposed model: (i) intermediate densities in ocean gyres, Seas of Japan and of Okhotsk, Mediterranean and around the Antarctic Ocean; (ii) high densities in the Arctic Ocean; and (iii) point zones of highest densities inside the Arctic Seas. Coastal areas and upwelling systems have low accumulation potential. At the same time, zones of divergences between westerlies and trade winds, located above the tropical oceanic gyres, are predicted to accumulate MFs. In addition, it is likely that the warm branch of the thermohaline circulation has an important role in the transport of MFs towards the Arctic Ocean, emphasizing that surface water masses are important predictors. This study highlights that the Arctic Ocean is a dead end for floating MFs.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Global patterns for the spatial distribution of floating microfibers: Arctic Ocean as a potential accumulation zone

Lima¹,

Ferreira

Barrows

et al. 2021

Journal of Hazardous Materials

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“…A produção mundial de plástico é distribuída de forma irregular sendo 51% produzido no Ásia, com a China responsável por 30%, 18% produzido na Nafta, 17% na Europa, 4% na América do Sul, e 10% entre as demais localidades (PLASTIC EUROPE, 2019). Apesar disso, os valores encontrados de MP em bivalves podem estar relacionados não apenas a produção e consumo de plástico em diferentes localidades, mas também a forma de descarte, a qualidade de manejo de resíduos, e ao transporte transfronteiriço (KRELLING et al, 2019;LIMA et al, 2020) Os mexilhões expostos em costões rochosos da encosta das praias estão susceptíveis a MP que se degradam tanto através de intemperismos como frio, calor, raios UV, mas também com a ação mecânica das ondas, que além de fragmentar os plásticos, associados aos eventos de maré e ventos, transportam os MP para as praias que servem tanto de sumidouro como fonte para esses microdetritos (RODRÍGUEZ et al, 2020). Esses movimentos de maré, ondas e ventos, biodisponibilizam MP a biota ao longo dos costões próximos às praias.…”

Section: Microplástico Encontrado Nos Mexilhõesunclassified

Análise Da Presença De Microplástico Em Bivalves (Perna Perba): Um Estudo De Caso Em Matinhos, Litoral Do Paraná

Machado

Oliveira

Nazário

et al. 2021

Guaju

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Microplásticos são partículas plásticas com tamanho inferior a 5mm, conhecidos como os detritos plásticos mais abundantes no oceano. Atualmente, microesferas, fragmentos ou microfibras de plástico podem ser encontrados nos mares de todo planeta Terra, oriundos de diferentes fontes e polímeros. A ingestão destas partículas pela fauna marinha tem sido amplamente documentada, resultando na contaminação da cadeia alimentar. Além disso, devido aos riscos associados ao seu consumo pelos seres humanos, este trabalho tem como objetivo analisar e quantificar a presença de microplásticos em bivalves selvagens (Perna perna) presentes e comercializados em Matinhos, litoral do Paraná. Para isso, foi realizada a adaptação da metodologia de Phuong et al. (2018) para identificação da presença e ausência do microplástico, fazendo uso dos reagentes químicos KOH (Hidróxido de Potássio) e KI (Iodeto de Potássio). O processo consiste na amostragem das espécies e submissão destes aos processos de digestão com KOH (10%). As amostras individuais passaram por processos sequenciais de sedimentação (KOH 10% e KI 50%) e, após cada etapa, filtração das frações sobrenadantes em filtro de fibra de vidro GF/F3 (1,2 μm). Os filtros foram analisados com auxílio de estereoscópio e as partículas de microplásticos recuperadas foram contadas, fotografadas e separadas para posterior análise qualitativa. A análise do material filtrado indicou a existência de fragmentos plásticos no formato de fios/fibras, fragmentos, filamentos e esferas, comprovando a existência do material. Os resultados desta pesquisa poderão servir de subsídios para a tomada de decisão e definição de áreas prioritárias para estudos posteriores.

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“…Plastic waste is one of the world's most pressing environmental problems driven by international mismanagement; accounting for 100 million tonnes found in the oceans (Anderson et al, 2018;Lebreton et al, 2017;Ockelford et al, 2020). Nearly 90% of this waste enters the ocean from land-based sources as estuaries are the main pathway exporting plastics from the land to the sea (Lima et al, 2020). The bi-directional freshwater-seawater flow creates heterogeneous boundaries with potential to accumulate plastics into these systems.…”

Section: Introductionmentioning

confidence: 99%

“…The relative abundance of plastics increases upstream when tidal influx is the main factor structuring the estuarine gradient, and then increases seawards whenever river flows break this gradient, as observed for other pollutants worldwide (Lebreton et al, 2017;Lima et al, 2014). This highlights that plastic pollution has a transboundary nature, with complex spatiotemporal patterns that are not fully understood (Krelling and Turra, 2019;Lima et al, 2020). Assessments of riverine systems are rare, which leads to knowledge gaps and estimations of plastic emissions to the oceans (Li et al, 2018a,b).…”

Section: Introductionmentioning

confidence: 99%

The fate of plastic litter within estuarine compartments: An overview of current knowledge for the transboundary issue to guide future assessments

Pinheiro

Agostini

Lima³

et al. 2021

Environmental Pollution

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Plastics can enter biogeochemical cycles and thus be found in most ecosystems. Most studies emphasize plastic pollution in oceanic ecosystems even though rivers and estuaries are acknowledged as the main sources of plastics to the oceans. This review detected few studies approaching the transboundary issue, as well as patterns of estuarine gradients in predicting plastic distribution and accumulation in water, sediments, and organisms. Quantities of plastics in estuaries reach up to 45,500 items m À3 in water, 567,000 items m À3 in sediment, and 131 items per individual in the biota. The role of rivers and estuaries in the transport of plastics to the ocean is far from fully understood due to small sample sizes, short-term approaches, sampling techniques that underestimate small plastics, and the use of site-specific sampling rather than covering environmental gradients. Microfibres are the most commonly found plastic type in all environmental matrices but efforts to re-calculate pathways using novel sampling techniques and estimates are incipient. Microplastic availability to estuarine organisms and rising/sinking is determined by polymer characteristics and spatio-temporal fluctuations in physicochemical, biological, and mineralogical factors. Key processes governing plastic contamination along estuarine trophic webs remain unclear, as most studies used "species" as an ecological unit rather than trophic/functional guilds and ontogenetic shifts in feeding behaviour to understand communities and intraspecific relationships, respectively. Efforts to understand contamination at the tissue level and the contribution of biofouling organisms as vectors of contaminants onto plastic surfaces are increasing. In conclusion, rivers and estuaries still require attention with regards to accurate sampling and conclusions. Multivariate analysis and robust models are necessary to predict the fate of micro-and macroplastics in estuarine environments; and the inclusion of the socio-economic aspects in modelling techniques seems to be relevant regarding management approaches.

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Plastic Contamination in Brazilian Freshwater and Coastal Environments: A Source-to-Sea Transboundary Approach

Cited by 10 publications

References 63 publications

Global patterns for the spatial distribution of floating microfibers: Arctic Ocean as a potential accumulation zone

Global patterns for the spatial distribution of floating microfibers: Arctic Ocean as a potential accumulation zone

Análise Da Presença De Microplástico Em Bivalves (Perna Perba): Um Estudo De Caso Em Matinhos, Litoral Do Paraná

The fate of plastic litter within estuarine compartments: An overview of current knowledge for the transboundary issue to guide future assessments

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