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Microplastics and Geotechnical Characteristics of the Sand at Praia Do Futuro, Ceará, Brazil
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A survey of microplastic concentrations in beach sediments at Praia do Futuro, Brazil found levels that exceeded those in other Brazilian studies but were lower than many international benchmarks, with no significant difference between tourist-heavy and quieter zones. The study also characterized the sand's physical properties, providing baseline data for future monitoring in a region where coastal microplastic research has been limited.
ABSTRACT Microplastic pollution and its environmental impacts are under investigation in marine and coastal environments. However, in Ceará state, Brazil, the impacts of microplastic pollution in coastal areas have not been evaluated. This study assesses the quantity, composition, and physical forms of microplastics in sediment at Praia do Futuro and determines the sand’s geotechnical characteristics. Three study zones were defined, with 21 samples collected. Normality tests were conducted for statistical analyses, comparing results using ANOVA and Kruskal-Wallis tests. No significant differences were found between locations with and without tourist activity. The concentration of microplastics exceeded levels observed in other Brazilian studies, but it was lower than that typically registered in international studies. Additionally, geotechnical characteristics of Praia do Futuro’s sand indicated grain size with diameters under 600 µm and void ratios aligned with literature expectations. The porosity varied along the coast, as is typical of natural sandy soils.
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Researchers conducted the first survey of microplastic distribution and zonation on beaches in Paraná state, southern Brazil, characterizing MP concentrations, polymer types, and morphologies across multiple beach zones to establish a baseline for this understudied South American coastline.
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Microplastics in brazilian marine environments: a study on beaches in São Francisco do Sul - SC
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Beach surveys along São Francisco do Sul in southern Brazil confirmed widespread microplastic presence in coastal sediments, with polymer composition reflecting regional plastic waste streams. The study adds to the body of evidence that Brazilian coastlines are significantly contaminated and calls for national monitoring standards to track and manage the problem.
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When a large batch of papers lands in the Atlas, we read through it and send a short write-up of what stood out.