Predicting diurnal variability of fine inorganic aerosols and their gas-phase precursors near downtown Mexico City
نویسنده
چکیده
1 Centro de Ciencias de la Atmósfera, Universidad Nacional Autónoma de México, Ciudad Universitaria, 04510, Mexico City, Mexico 2 School of Chemical and Biomolecular Engineering, Georgia Institute of Technology, 311 Ferst Drive, Atlanta, GA 30332-0100, USA 3 School of Earth and Atmospheric Sciences Georgia Institute of Technology, 311 Ferst Drive, Atlanta, GA 30332-0100, USA 4 Posgrado en Ciencias Quı́micas, Universidad Nacional Autónoma de México, Ciudad Universitaria, 04510, Mexico City, Mexico
منابع مشابه
Spectro-microscopic measurements of carbonaceous aerosol aging in Central California
Carbonaceous aerosols are responsible for large uncertainties in climate models, degraded visibility, and adverse health effects. The Carbonaceous Aerosols and Radiative Effects Study (CARES) was designed to study carbonaceous aerosols in the natural environment of the Central Valley, California, and learn more about their atmospheric formation and aging. This paper presents results from spectr...
متن کاملThermodynamic characterization of Mexico City aerosol during MILAGRO 2006
Fast measurements of aerosol and gas-phase constituents coupled with the ISORROPIA-II thermodynamic equilibrium model are used to study the partitioning of semivolatile inorganic species and phase state of Mexico City aerosol sampled at the T1 site during the MILAGRO 2006 campaign. Overall, predicted semivolatile partitioning agrees well with measurements. PM2.5 is insensitive to changes in amm...
متن کاملSeasonal and diurnal characteristics of water soluble inorganic compounds in the gas and aerosol phase in the Zurich area
Gas and aerosol samples were taken using a wet effluent diffusion denuder/aerosol collector (WEDD/AC) coupled to ion chromatography (IC) in the city of Zurich, Switzerland from August to September 2002 and in March 2003. The water soluble inorganic anions nitrate, sulfate, and nitrite were analyzed online with a time resolution of two hours for the gas and aerosol phase. The fraction of water s...
متن کاملChemically - resolved aerosol eddy covariance flux measurements in urban Mexico City during MILAGRO 2006
As part of the MILAGRO 2006 field campaign, the exchange of atmospheric aerosols with the urban landscape was measured from a tall tower erected in a heavily populated neighborhood of Mexico City. Urban submicron aerosol fluxes were measured using an eddy covariance method with a quadrupole aerosol mass spectrometer during a two week period in March, 2006. Nitrate and ammonium aerosol concentra...
متن کاملEvaluation and application of a semi-continuous chemical characterization system for water soluble inorganic PM2.5 and associated precursor gases
Water soluble inorganic particles components (Cl, SO 4 , NO − 3 , and NH + 4 ) and concentrations of their associated precursor gases (HCl, SO2, HNO3, NH3) were semi-continuously measured using the Dionex Gas Particle Ion Chromatography (GPIC) system. Sampling was conducted adjacent to a high traffic street in downtown Toronto, Canada from June 2006 to March 2007. This study evaluated the preci...
متن کامل