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Presencia de microplásticos en la playa de San Mateo, Provincia de Manabí, Ecuador
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Researchers evaluated microplastic presence at San Mateo Beach in Manabí, Ecuador using density separation and stereomicroscopy across 100 sand samples from five sites, finding an average of 12.5 ± 10.3 items/kg with fibers comprising 63% of particles, attributing contamination primarily to local anthropogenic activities at this heavily visited coastal site.
Este estudio tuvo como objetivo general la evaluación de la presencia de microplásticos en la Playa de San Mateo. Se realizó un diseño no experimental de tipo mixto con enfoque exploratorio, empleando muestreo sistemático en cinco puntos a lo largo de la playa, de donde se obtuvo la recolección de 100 muestras de arena de cinco puntos representativos de la playa, utilizando una metodología adaptada para zonas costeras. Las muestras fueron analizadas mediante técnicas de separación por densidades por medio de la técnica de flotación y clasificación visual dentro de un laboratorio con ayuda de un estereomicroscopio. Los resultados indicaron una abundancia promedio de 12,5 ± 10,3 ítems/kg, con predominancia de fibras (63%), seguidas por fragmentos (25%) y películas plásticas (12%). Esto indica que el principal factor de la presencia de microplásticos es por actividades antrópicas del lugar destacando que es uno de los sitios más visitas por lo que es de suma importancia de desarrollar estrategias de manejo ambiental.
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Presencia de Microplásticos en la Playa de San Lorenzo de la Provincia de Manabí – Ecuador
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Researchers collected 120 sand samples from four sites at San Lorenzo Beach in Manabí, Ecuador and identified microplastic contamination at all locations, with fibers being the dominant type (averaging up to 48.67 items/kg) and the near-absence of pellets suggesting local pollution is driven by secondary rather than primary microplastics.
Valoración de la presencia de microplásticos en la playa de San Vicente de la provincia de Manabí – Ecuador
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Researchers assessed microplastic contamination at San Vicente beach in Manabi Province, Ecuador, using transect sampling and vacuum filtration, identifying microplastics at a concentration of 16.5 units/kg in white and blue colors across size classes of 1-4 mm, and characterizing microbial biofilm colonization on recovered particles.
Evaluación de microplásticos presentes en agua y arena en playas de Pacoche y de Tarqui
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Researchers evaluated microplastic presence in water and sand at two Ecuadorian coastal sites -- the Pacoche Marine Coastal Wildlife Refuge and Tarqui beach -- finding no microplastics in Pacoche sand but 8 fibers in its water, and 49 microplastic particles dominated by films at Tarqui beach, with ANOVA analysis revealing differences in quantity, type, and size between sites.
Microplásticos en tres playas arenosas de la costa central del Perú
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Researchers surveyed microplastic concentrations in the sand of three beaches on Peru's central coast during summer 2020, finding primary and secondary microplastics at densities of 117–202 items/kg, with fibers and fragments dominant and the most urbanized beach (Carpayo) showing the highest contamination levels.
Exploración costera: estudio sobre macro, meso y microplásticos en playa Bique, Panamá Oeste
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Researchers conducted the first plastic debris survey at Playa Bique, Panama, classifying macro-, meso-, and microplastics across four beach zones and finding that macroplastics concentrated near urbanized areas while meso- and microplastics increased toward the intertidal zone and mangroves, indicating active fragmentation processes.
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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.