Widespread microplastic pollution in mangrove soils of Todos os Santos Bay, northern Brazil

Paes, Eldimar da Silva; Gloaguen, Thomas Vincent; Silva, Henrique Dos Anjos da Conceição; Duarte, Taciane Santos; Almeida, Maria da Conceição de; Costa, Oldair Vinhas; Bomfim, Marcela Rebouças; Santos, Jorge Antônio Gonzaga

doi:10.1016/j.envres.2022.112952

Cited by 33 publications

(7 citation statements)

References 77 publications

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“…First, we attempt to compile soil concentrations of microplastics. Soil microplastic concentrations are usually reported in different microplastic size ranges. − Thus, comparing soil microplastic concentrations reported globally is not straightforward, and data normalization is needed. After reviewing the reported size distributions of global soil microplastic, we found almost all of the mass size distributions of soil microplastic concentration follow a single probability density function (Figure a) (see the calculation methods in Text S7).…”

Section: Resultsmentioning

confidence: 99%

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Microplastic Emission from Soil-Air Interface

Yang,

Lu,

Peng

et al. 2024

Environ. Sci. Technol. Lett.

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To bridge the gap in understanding soil−air microplastic emissions, here we studied the soil−air transfer mechanism of microplastics with laboratory simulations using microplastic particles varying in size from 1 to 5000 μm. Our findings indicate that the size and shape of the microplastics together with the soil type and moisture levels are major determinants of the microplastic enrichment ratio (ER) in dust, overshadowing the role of polymer types. Notably, microplastic pellets larger than 20 μm do not enrich in dust, while microplastic fibers, even those as large as 500−5000 μm in length, do enrich in dust. Based on our ER measurement, the global microplastic size distribution in soil and dust aerosol production flux, we made a preliminary bottom-up assessment of global soil microplastic emissions of 48[0.4−1217] kilotons/year. Our pioneering findings on the global atmospheric soil−air microplastic flux provide insights that could guide the future development of a more precise microplastic emission inventory.

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Section: Resultsmentioning

confidence: 99%

“…Size distributions of soil microplastic in terms of MSDSM (a). − Calculated concentrations for soil microplastics within size bins of 0–2.5, 2.5–10, 10–50, and 50–100 μm (b). Emission flux of soil-sourced microplastics within size bins of 0–2.5, 2.5–10, 10–50, and 50–100 μm (c).…”

Section: Resultsmentioning

confidence: 99%

Microplastic Emission from Soil-Air Interface

Yang,

Lu,

Peng

et al. 2024

Environ. Sci. Technol. Lett.

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“…Embora a cor branca em amostras tenha sido relatada na literatura como consequência de descoloramento devido ao envelhecimento sob ação de radiação UV, ou relacionada ao tempo de permanência no ambiente aquático (amostras amareladas geralmente indicam longos tempos de exposição ao meio) Da Silva Paes et al, 2022), acredita-se, no caso em questão, que esse percentual elevado de ocorrência de amostras de cor branca esteja relacionado preferencialmente à presença, quase que uniforme, de objetos descartáveis (copos, facas, colheres, garfos e pratos) no local. Devido à ação do tempo e de fatores de envelhecimento outrora mencionados, esses objetos plásticos estão se transformando, através de fragmentação sucessiva, em microplásticos, os quais poderão adentrar o leito do rio pela ação das chuvas e da elevação do nível das águas do rio.…”

Section: Perfil De Cores Das Amostrasunclassified

“…O problema dos microplásticos é tão grave que estes materiais já foram encontrados até mesmo em lugares bastantes reservados da natureza, tais como os solos de mangues da "Baía de Todos os Santos" (Bahia, Brasil), conforme relatado por Da Silva Paes et al (2022). Olivatto et al (2018) explicam que os microplásticos encontrados no meio ambiente são classificados como primários ou secundários.…”

Section: Introductionunclassified

Ocorrência de microplásticos na orla do rio Javari, em Benjamin Constant, interior do Amazonas, Brasil

De Jesus Silva,

Da Silva,

Tananta

et al. 2024

J. Educ. Sci and Health

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A poluição por microplásticos em ambientes terrestres e aquáticos é uma preocupação crescente na sociedade contemporânea. Refletindo sobre esta questão, este trabalho teve como objetivo investigar a incidência de microplásticos na região de orla de rio Javari, em Benjamin Constant, Amazonas, Brasil. A pesquisa utilizou o método experimental, associado à técnica de pesquisa de campo. Os materiais foram coletados em diferentes pontos ao longo da orla do rio Javari, em Benjamin Constant. A caracterização foi feita por análise visual dos fragmentos, levando em consideração os parâmetros cor, tipo, forma e comprimento. Em um total de 144 amostras coletadas, foram encontrados não apenas microplásticos, mas também macroplásticos, inclusive em quantidade superior ao número de amostras de microplásticos. Quantitativamente, 16,67% das amostras foram enquadradas como microplásticos, enquanto 83,33% como macroplásticos. Entre as amostras analisadas foram registrados os seguintes tipos: fragmentos, fibras e objetos inteiros. A totalidade de amostras classificadas como microplásticos pertenciam ao tipo fragmentos. Com relação aos macroplásticos, houve a ocorrência de macrofragmentos e macrofibras. No caso dos macrofragmentos, o comprimento médio foi de 20,99 ± 15,56 mm, enquanto para as macrofibras foi de 82,00 ± 22,51 mm. Os microplásticos apresentaram fragmentos de 3,38 ± 1,55 mm. A análise de cores revelou uma pluralidade delas, com destaque para o branco opaco (61,83%) e o azul (21,53%). Os estudantes envolvidos na pesquisa foram capazes de dimensionar o impacto potencial desses materiais no rio Javari. Além disso, eles relataram avanços significativos em seu aprendizado de Química como resultado de sua participação neste projeto.

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“…In aquatic ecosystems, MPs contamination has been found in seawater (Zobkov et al, 2019), lakes (Koelmans et al, 2019;Uurasjärvi et al, 2020;Whitaker et al, 2019), mangrove waters (Paes et al al., 2022), and beach and bottom sediments (Leslie et al, 2017;Matsuguma et al, 2017). Based on the literature review report, MPs contamination in moving water such as rivers is more common than in calm waters such as lakes.…”

Section: Introductionmentioning

confidence: 99%

Investigation of Microplastic Contamination in Sediments, Water and Aquatic Biota in Lake Beratan, Tabanan Regency, Bali Province – Indonesia

Watiniasih¹,

Hendrawan²,

Nuarsa³

et al. 2023

J. Ecol. Eng.

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Microplastics (MPs) has become a very serious global threat, especially to the health of animals, humans and the environment. In this study we aim to investigate the contamination of MPs in sediment, air, and aquatic biota collected from the waters of Lake Beratan in Bali Province, Indonesia. Lake Beratan is one of the strategic areas that continues to develop as a tourist destination, agriculture and fisheries, as well as a source of water for daily needs. Sediment, water, and aquatic biota samples were collected from 4 stations that represent the Beratan Lake area. Each sample obtained was then followed by the pre-treatment stage using 5 M NaCl solution. Furthermore, the extraction process for each sample used wet oxidation peroxidation (WPO) with the addition of Fe (II) catalyst. The highest average weight of MPs in the sediment samples was obtained at the 1st sampling point of 2.53% which was dominated by soft fragments. The percentage of MPs weight in the water samples was varied at each sampling point with the highest obtained at the 4 th point of 99.2% and was dominated by hard-shaped fragments at all sampling points. The collected aquatic biota was also contaminated by MPs of 68% in fish and 36.40% in shrimp. The types of MPs found in the digestive tract of aquatic biota are in the form of fragments, filaments, films and foam. These results indicate that the aquatic environment of Lake Beratan, Bali has MPs content that varies in sediment, water and aquatic biota which are often consumed by the local community. This must be of particular concern and further investigation, especially regarding the environmental management of the lake area and the relevant authorities in formulating regulations to reduce the harmful effects of MPs contamination.

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Widespread microplastic pollution in mangrove soils of Todos os Santos Bay, northern Brazil

Cited by 33 publications

References 77 publications

Microplastic Emission from Soil-Air Interface

Microplastic Emission from Soil-Air Interface

Ocorrência de microplásticos na orla do rio Javari, em Benjamin Constant, interior do Amazonas, Brasil

Investigation of Microplastic Contamination in Sediments, Water and Aquatic Biota in Lake Beratan, Tabanan Regency, Bali Province – Indonesia

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