Particulate Matter Collected in an Impactor from a Euro VI Diesel Engine on Real-world Conditions: Physicochemical Characterization
Camilo Zapata-Hernandez, Camilo Bernal, KAREN CACUA,
Instituto Tecnológico Metropolitano de Medellín Abstract Number: 532
Working Group: Aerosol Physical Chemistry and Microphysics
AbstractDiesel engines are big contributors to air pollution and are important to identify their health impacts associated with their size, morphology, and chemical composition. In this study, Particulate Matter (PM) emission from a euro VI diesel engine from several euro VI diesel engines working with a blend of diesel and biodiesel (10 % vol.) was collected in a cascade impactor and classified into 14 size fractions. The size range of the particles was less than 10 µm. PM morphology and chemical composition were characterized by scanning electron microscopy (SEM) and energy-dispersive x-ray spectroscopy (EDS) analysis for each size fraction, respectively. Additionally, Fourier infrared spectroscopy (FTIR) and thermogravimetric analysis (TGA) were used to identify the functional groups and their thermal behavior, respectively. Results show that particle morphology is quasi-spherical and their main component is carbon, also, with some traces of metals. Additionally, functionalities associated with alkyl aromatic hydrocarbons were identified.