Análisis y caracterización del material particulado PM10 y PM2.5 en la ciudad de Manizales
This work shows a study of the concentration, and the chemical and morphological composition of the particulate matter (PM10 and PM2.5) in the city of Manizales. For this purpose, concentration data measured between October 2018 to February 2019 in the 5 monitoring stations were analyzed. The chemic...
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| Tipo de recurso: | tesis de maestría |
| Estado: | Versión aceptada para publicación |
| Fecha de publicación: | 2020 |
| País: | Colombia |
| Institución: | Universidad Nacional de Colombia |
| Repositorio: | Repositorio UN |
| Idioma: | español |
| OAI Identifier: | oai:repositorio.unal.edu.co:unal/79214 |
| Acceso en línea: | https://repositorio.unal.edu.co/handle/unal/79214 |
| Access Level: | acceso abierto |
| Palabra clave: | 620 - Ingeniería y operaciones afines::628 - Ingeniería sanitaria 620 - Ingeniería y operaciones afines::627 - Ingeniería hidráulica PM10 análisis elemental morfología calidad del aire - Manizales (Colombia) - tesis y disertaciones académicas PM2.5 elemental analysis SEM/EDS morphology air quality - Manizales (Colombia) - dissertations, academic |
| Sumario: | This work shows a study of the concentration, and the chemical and morphological composition of the particulate matter (PM10 and PM2.5) in the city of Manizales. For this purpose, concentration data measured between October 2018 to February 2019 in the 5 monitoring stations were analyzed. The chemical composition was determined by analyzing the presence of sulfate and nitrate ions in 46 PM10 samples collected at the Nubia (located near industrial zone in the southeast of the city) and Palogrande (located in the stadium sector on Paralela Avenue in the geographic center of the city) stations. Elemental composition analysis was carried out using the SEM/EDS technique for 18 filters of PM10 and PM2.5 from the Gobernación (located in the historic center of the city in the northwest of the city) and Nubia stations. Finally, the morphology (shape and particle size) of the particles present in the air of the city of Manizales was studied. Additionally, the PM10 concentration data for the years 2016 and 2017 in the 5 monitoring stations were analyzed. The PM10 concentration results show that the highest levels were obtained at the Liceo station , with values of 35.93 μg/m3 for 2016, 34.39 μg/m3 for 2017 and 29.69 μg/m3 for the period between October 2018 and February 2019, these values were mainly associated with the high vehicular flow at the area; followed by Milan station (32.02 μg/m3, 30.49 μg/m3 and 27.96 μg/m3), Gobernación PM10 (24.34 μg/m3, 26.53 μg/m3 and 20.55 μg/m3), Nubia (23.63 μg/m3, μg/m3 and 19.44 μg/m3) and Palogrande (23.21 μg/m3, 21.03 μg/m3, and 18.22 μg/m3). For the period between October 2018 and February 2019, the average PM2.5 concentration values were 13 μg/m3. On the other hand, the elemental composition results showed the presence of elements such as Pb, S, Cu, Na, Al, Cl and Fe which were associated with vehicular sources, Pb and Na due to combustion processes in their engines, Pb, S, K, and Cu due to reduce wear of tires and brakes, Fe, Cu and Pb due to wear of moving parts, Pb, Cr, Ge, Cu and Al were associated with road dust. Elements such as Fe, Al, S, Na, Ca and Mg were related to steel industries such as melting and welding. While elements such as P, S, Zn, F, As, Mn, Mg, Ga and Ti are attributed to volcanic sources. The morphological analysis, the first of its kind in the city of Manizales, showed different shapes. These range from spherical particles associated with the combustion of coal, to amorphous particles with sharp edges associated with volcanic emissions. Agglomerations of soot, related to vehicular emissions, especially for the combustion of diesel engines. Another type of particle identified was irregular geometric particles linked to natural sources such as mineral material (Texto tomado de la fuente) |
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