Heterogeneous Nucleation Drives Particle Size Segregation in Sequential Ozone and Nitrate Radical Oxidation of Catechol
Lauren A. Garofalo, Yicong He, Shantanu H. Jathar, Jeffrey R. Pierce, Carley D. Fredrickson, Brett B. Palm, Joel A. Thornton, Fabian Mahrt, Giuseppe V. Crescenzo, Allan K. Bertram, Danielle C. Draper, Juliane L. Fry, John J. Orlando, Xuan Zhang, Delphine K. Farmer
Abstract
oxidation preferentially condensing onto the large end of the pre-existing size distribution (∼750 nm). A size-resolved chemistry and microphysics model reproduces the evolution of the two distinct organic aerosol size modes─heterogeneous nucleation to an independent, nitrocatechol-rich aerosol phase.
Topics & Concepts
AerosolNucleationVolatility (finance)Particle-size distributionChemistryParticle sizeCondensationOzoneChemical physicsCloud condensation nucleiParticle (ecology)CombustionEnvironmental chemistryThermodynamicsPhysical chemistryOrganic chemistryFinancial economicsPhysicsGeologyEconomicsOceanographyAtmospheric chemistry and aerosolsAtmospheric aerosols and cloudsAtmospheric Ozone and Climate