« Previous AbstractRescue Surgery in the Flow Diverter Era: Partial Trapping Plus Revascularization Technique for a Giant Carotid-Ophthalmic Aneurysm    Next AbstractTesting the single-pass VOC removal efficiency of an active green wall using methyl ethyl ketone (MEK) »

Chemosphere

Title:		Relationship between VOC and NOx emissions and chemical production of tropospheric ozone in the Aburra Valley (Colombia)
Author(s):		Toro MV; Cremades LV; Calbo J;
Address:		"Grupo de Investigaciones Ambientales, Universidad Pontificia Bolivariana, Spain. mvtoro@upb.edu.co"
Journal Title:		Chemosphere
Year:		2006
Volume:		20060502
Issue:		5
Page Number:		881 - 888
DOI:		10.1016/j.chemosphere.2006.03.013
ISSN/ISBN:		0045-6535 (Print) 0045-6535 (Linking)
Abstract:		"Relationship between volatile organic compounds (VOC) and nitrogen oxides (NOx) emissions and the chemical production of tropospheric ozone is studied through mathematical simulation. The study is applied to the Aburra Valley, in the Colombian Andes, which is a practically unknown area from the point of view of ozone formation. The model used for this application is the European modelling of atmospheric constituents (EUMAC) zooming model (EZM) which consists of a mesoscale prognostic model (MEMO, mesoscale meteorological model) and a chemical reaction model (MUSE, multiscale for the atmospheric dispersion of reactive species), coupled to the chemical mechanism EMEP (European monitoring and evaluation program). The analysis is performed for a real episode that was characterized by high ozone production and that happened during the 23rd and 24th December, 1999 in Medellin (Colombia). From this real scenario, a sensitivity analysis has been carried out in order to assess the influence of VOC and NOx amounts on ozone production and to extract some conclusions for future ozone abatement policies in Andean regions. As far as ozone air quality is concerned, it is shown that in order to keep current levels the emphasis must be put to avoid increasing NOx emissions, or alternatively, to augment VOC emissions in order to have a high VOC/NOx ratio"
Keywords:		"Air Pollutants/*analysis Colombia Environmental Monitoring Models, Theoretical Nitrogen Oxides/*analysis Organic Chemicals/*analysis Oxidants, Photochemical/*analysis Ozone/*analysis Time Factors Volatilization;"
Notes:		"MedlineToro, Maria Victoria Cremades, Lazaro V Calbo, Josep eng Research Support, Non-U.S. Gov't England 2006/04/25 Chemosphere. 2006 Oct; 65(5):881-8. doi: 10.1016/j.chemosphere.2006.03.013. Epub 2006 May 2"