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Estudio de microplásticos en muestras de agua y sedimentos de un río urbano del suroccidente de Colombia
Summary
Microplastics were detected in both water and sediment samples from the Molino River flowing through Popayán, Colombia, with fibers and fragments being the most common forms found in this urban waterway.
Objective: To characterize the microplastics of sediments and water samples from the Molino River in the Urban Zone of the Municipality of Popayán, Cauca. Methodology: Sediment and water samples were collected at three stations on the banks of the Molino River as it passes through the urban perimeter of the municipality of Popayán and transported for laboratory analysis, extracting microplastics by implementing filtration and density separation activities, ending with inspection and counting by microscopy. Results: Plastic particles were determined in all samples, stipulating their morphological classification and their quantity in units of MP/L and MP/Kg for water and sediments, respectively. Conclusions: A total of 4186 MP/L and 62763 MP/Kg were identified. The anthropic influence acted as a main determinant in the concentration of these polymers and their respective morphological percentages, as well as in their classification, which was mostly secondary.