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Št. zadetkov: 5
Modeling the multiday evolution and aging of secondary organic aerosol during MILAGRO 2006
Katja Džepina, Christopher D. Cappa, Rainer Volkamer, Sasha Madronich, P. F. DeCarlo, Rahul A. Zaveri, Jose L. Jimenez
Izvirni znanstveni članek
Oznake: Mexico City;volatility;semivolatile;transport;campaign;
In this study, we apply several recently proposed models to the evolution of secondary organic aerosols (SOA) and organic gases advected from downtown Mexico City at: an altitude of similar to 3.5 km during three days of aging, in a way that is directly comparable to simulations in regional and glob ...
Leto: 2011 Vir: Repozitorij Univerze v Novi Gorici (RUNG)
Secondary organic aerosol formation from semi- and intermediate-volatility organic compounds and glyoxal
Eleanor M. Waxman, Katja Džepina, Barbara Ervens, Julia Lee-Taylor, Bernard Aumont, Jose L. Jimenez, Sasha Madronich, Rainer Volkamer
Izvirni znanstveni članek
Oznake: secondary organic aerosol;glyoxal;aqueous multiphase chemistry;oxygen-to-carbon ratio;single scattering albedo;
The role of aqueous multiphase chemistry in the formation of secondary organic aerosol (SOA) remains difficult to quantify. We investigate it here by testing the rapid formation of moderate oxygen-to-carbon (O/C) SOA during a case study in Mexico City. A novel laboratory-based glyoxal-SOA mechanism ...
Leto: 2013 Vir: Repozitorij Univerze v Novi Gorici (RUNG)
Evaluation of recently-proposed secondary organic aerosol models for a case study in Mexico City
Katja Džepina, Rainer Volkamer, Sasha Madronich, P. Tulet, I. M. Ulbrich, Qi Zhang, C. D. Cappa, P. J. Ziemann, Jose L. Jimenez
Izvirni znanstveni članek
Oznake: polycyclic aromatic-hydrocarbons;positive matrix factorization;mass-spectrometry;volatility measurements;
Recent field studies have found large discrepancies in the measured vs. modeled SOA mass loadings in both urban and regional polluted atmospheres. The reasons for these large differences are unclear. Here we revisit a case study of SOA formation in Mexico City described by Volkamer et al. (2006), du ...
Leto: 2009 Vir: Repozitorij Univerze v Novi Gorici (RUNG)
Secondary organic aerosol formation from anthropogenic air pollution
Rainer Volkamer, Jose L. Jimenez, F. M. San Martini, Katja Džepina, Qi Zhang, Dara Salcedo, Luisa T. Molina, D. Worsnop
Izvirni znanstveni članek
Oznake: atmospheric aerosol;atmospheric chemistry;volatile organic compounds;secondary organic aerosols;
The atmospheric chemistry of volatile organic compounds (VOCs) in urban areas results in the formation of 'photochemical smog', including secondary organic aerosol (SOA). State-of-the-art SOA models parameterize the results of simulation chamber experiments that bracket the conditions found in the p ...
Leto: 2006 Vir: Repozitorij Univerze v Novi Gorici (RUNG)
Implementation of a Markov Chain Monte Carlo method to inorganic aerosol modeling of observations from the MCMA-2003 campaign
F. M. San Martini, E. J. Dunlea, Rainer Volkamer, T. B. Onasch, J. Jayne, M. R. Canagaratna, D. Worsnop, C. E. Kolb, J. H. Shorter, Katja Džepina
Izvirni znanstveni članek
Oznake: secondary organic aerosols;Mexico City;MCMA-2003 field campaign;thermodynamic equilibrium;
A Markov Chain Monte Carlo model for integrating the observations of inorganic species with a thermodynamic equilibrium model was presented in Part I of this series. Using observations taken at three ground sites, i. e. a residential, industrial and rural site, during the MCMA-2003 campaign in Mexic ...
Leto: 2006 Vir: Repozitorij Univerze v Novi Gorici (RUNG)
Št. zadetkov: 5
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