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Aerosol optical properties and brown carbon in Mexico City

Armando Retama, Mariana Ramos-Cerón, Olivia Rivera-Hernández, George Allen, Erik Velasco

2022Environmental Science Atmospheres24 citationsDOIOpen Access PDF

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
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