Aerosol optical properties and brown carbon in Mexico City
Armando Retama, Mariana Ramos-Cerón, Olivia Rivera-Hernández, George Allen, Erik Velasco
Abstract
65–74% of light extinction is due to light scattering in Mexico City. Organic aerosols dominate both submicron mass loading and light scattering. Brown carbon and black carbon contribute 22% and 78% to the total light absorption, respectively. Road traffic and regional wildfires are the main contributors to light absorption. The aerosols' optical properties exhibit distinctive diurnal and seasonal patterns.
Topics & Concepts
Extinction (optical mineralogy)Absorption (acoustics)Carbon blackAerosolLight scatteringEnvironmental scienceAtmospheric sciencesCarbon fibersScatteringExtinction eventTotal organic carbonMeteorologyMaterials scienceGeographyEnvironmental chemistryGeologyChemistryOpticsPhysicsMineralogyNatural rubberSociologyComposite numberComposite materialBiological dispersalPopulationDemographyAtmospheric chemistry and aerosolsAtmospheric Ozone and ClimateImpact of Light on Environment and Health