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Microplásticos en SUDS maduros: evaluación del almacenamiento en suelo y su vínculo con plásticos de mayor tamaño
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Researchers analyzed microplastic accumulation in mature sustainable urban drainage systems (SUDS) in Xàtiva, Spain, identifying 3,500 microplastics and 1,200 larger plastic fragments across vegetated channels, with concentrations averaging 150 particles per kg of soil and variability linked to the co-presence of larger plastic items.
El presente trabajo analiza la acumulación de microplásticos (MPs) en Sistemas Urbanos de Drenaje Sostenible (SUDS) maduros en Xàtiva, Valencia, con el objetivo de evaluar su capacidad de retención en el suelo y su relación con plásticos de mayor tamaño (MAPs). Se realizaron muestreos en tres secciones de dos cunetas vegetadas, donde se identificaron un total de 3500 MPs y 1200 MAPs, evidenciando una concentración media de 150 MPs por kg de suelo. Se observaron variaciones en la concentración de MPs entre los puntos de muestreo, indicando un rango de 120 a 185 MPs por kg. Esta variabilidad se relaciona con la presencia de MAPs, sugiriendo que los SUDS son efectivos en la retención de plásticos de diferentes tamaños. Las conclusiones indican que los SUDS son efectivos en la acumulación de MPs y MAPs, subrayando la relevancia de esta retención para la gestión de la contaminación plástica en entornos urbanos.
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