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Microplásticos en sedimentos fluviales en la cuenca baja del río Rímac, Perú
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Researchers conducted the first microplastics study in the lower Rímac River basin in Peru, documenting a dramatic increase from 97 particles in November 2017 to 2,982 particles in August 2018, with fragments, films, filaments, and spherules present — raising concern given the river is the primary water source for metropolitan Lima.
Los microplásticos están presentes en el ambiente, en especial en los ecosistemas acuáticos, y son de interés prioritario por el nivel de riesgo que representan. Este problema surge por los residuos de plásticos mal gestionados que, en su mayoría, terminan en vertederos, ríos, lagos y océanos, dando como resultado la generación de microplásticos por degradación física y química. Asimismo, las descargas de efluentes domésticos e industriales incrementan la presencia de microplásticos en los ríos. Esta investigación es el primer estudio sobre microplásticos que se desarrolló en la cuenca baja del río Rímac en los años 2017 y 2018, en la región Lima, Perú.Los resultados muestran 97 partículas de microplásticos correspondientes a noviembre de 2017, y 2982 que corresponden a agosto 2018. Las formas predominantes de microplásticos comprenden fragmentos, películas, filamentos y esférulas. La presencia de dichos materiales en los sedimentos está asociada a los residuos sólidos que se encuentran en el cauce del río y la descarga de efluentes en el mismo. Estos resultados son preocupantes, debido a que las aguas del río Rímac estarían siendo contaminadas por microplásticos, aun sabiendo que el río es la principal fuente de agua para las diferentes actividades que se desarrollan en la gran ciudad de Lima Metropolitana.
More Papers Like This
Microplásticos en sedimentos fluviales en la cuenca baja del río Rímac, Perú
AI summary Read the abstract
Microplastics were detected in river sediments from the lower Rímac River basin in Peru, with concentrations linked to upstream urban and industrial plastic waste that enters the river system without adequate treatment.
Microplásticos en sedimentos fluviales en la cuenca baja del río Rímac, Perú
AI summary Read the abstract
Researchers conducted the first microplastics study in the lower Rímac River basin in Lima, Peru, finding a dramatic increase from 97 particles in November 2017 to 2,982 particles in August 2018, with fragments, films, filaments, and spherules present — raising concern given the river is the primary water source for metropolitan Lima.
First evidence of microplastics in the Quilca-Vítor-Chili river basin, Arequipa region, Peru
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This study documented microplastics for the first time in three Peruvian river basins in the Arequipa region, finding an average concentration of 35 particles per cubic meter of water across all sites, with polyethylene and polypropylene being the dominant polymers. Filaments made up over 70% of particles, suggesting textile fibers as a key source. The findings establish a contamination baseline for this region and highlight illegal landfills and agricultural plastic use as primary pollution drivers.
Microplastics in river sediments in two streams in an Andean region of Peru
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Researchers measured microplastic concentrations in surface sediments from two Andean streams in Peru, finding levels ranging from 0-2,216 items/kg in Ishoj stream and 0-6,383 items/kg in Uyru Rume stream, with highest concentrations near solid waste dumping sites. Fragments smaller than 1 mm dominated, polypropylene was the most common polymer by Raman analysis, and all particles were secondary microplastics.
Microplastics in sediments deposited by rainwater runoff in a populated center in the Peruvian Andes
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Researchers surveyed microplastics in street sediments deposited by rainwater runoff in a village in the Peruvian Andes, finding an average of 293 particles per kilogram of sediment dominated by fibers and fragments in blue, black, and red colors, indicating poor local solid waste management.
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