Determinación de microplásticos en la precipitación pluvial urbana de la ciudad de Latacunga, provincia de Cotopaxi, periodo 2020-2021

Due to the growth of the industrial and commercial sector worldwide and the excessive use of polymer derivatives, their degradation has generated the presence of microparticles MPs called microplastics in water. This research aims to provide information on the quality of urban rainwater in the city of Latacunga in terms of the presence of microplastics for subsequent decision-making aimed at the prevention and remediation of this type of pollutant. The methodology consisted of collecting samples of urban precipitation in said city with the help of artisan rain gauges located in seven strategic transects, two rain gauges were placed for each transect. The first location corresponds to the north center - Río Aláquez, the second was located in the northeastern part - main ditch on Quijano and Ordoñez streets, third and most important in the central part - Río Cutuchi, fourth in the western central part - Pumacunchi River , fifth point in the mid-south-western zone - junction of the Pumacunchi and Cutuchi rivers, sixth in the south-western zone - Rio Cutuchi near the Taniloma ravine and the seventh and last point was placed in the south zone - urban limit of the canton Río Illuchi. The type of monitoring was periodic for 15 days, with a frequency every two days; The samples were analyzed quantitatively using the gravimetric technique of total suspended solids and qualitatively using the infrared spectroscopy technique (FT-IR), where the results show the presence of microplastics derived from polypropylene (strong bands close to 2950 cm-1, 1460 cm -1 and 1380 cm-1) and polyethylene (in bands close to 3190.41cm-1). In addition, the concentration of microplastics in the rainwater sample is 18 particles per liter, which is comparable to the results presented in a recent study in Mexico where an average of 7 to 18 microplastic particles per liter was recorded.

• 1. autor: Sailema Jiménez, Diana Maricela (author)
• Format: bachelorThesis
• Język: spa
• Wydane: 2021
• Hasła przedmiotowe: TRANSECTOS ESTRATÉGICOS; PREVENCIÓN Y REMEDIACIÓN; SECTOR INDUSTRIAL; MEDIO AMBIENTE
• Dostęp online: http://repositorio.utc.edu.ec/handle/27000/7818