ESTIMATION OF HYDROXYL AND HYDROPEROXYL RADICALS CONCENTRATIONS IN THE URBAN ATMOSPHERE OF SANTIAGO

dc.creatorRubio,M. Angélica
dc.creatorLiss,Eduardo
dc.creatorVillena,Guillermo
dc.creatorCaroca,Victoria
dc.creatorGramsch,Ernesto
dc.creatorRuiz,Álvaro
dc.date2005-06-01
dc.date.accessioned2017-03-07T15:25:25Z
dc.date.available2017-03-07T15:25:25Z
dc.identifierhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-97072005000200006
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/384724
dc.descriptionPhotochemical smog episodes are frequent in Santiago of Chile city. We have measured the concentration of the main free radical precursors (formaldehyde, ozone, nitrogen dioxide, peroxyacetyl nitrate and nitrous acid), nitrogen monoxide and the irradiance. Calculations of the rate of OH* production were performed for different periods of the year and at emission (Cerrillos and Estacion Central) and receptor sites (Las Condes). From these data and simple steady state considerations were derived the concentrations of hydroxyl and hydroperoxyl radicals. Daily profiles of both radicals show a noticeable accumulation during early afternoon, the time of most intense oxidants accumulation. During summer time, hydroperoxyl radical concentrations are higher in Las Condes than in Cerrillos. The concentrations calculated for both radicals are higher than those estimated in other cities, suggesting a particularly high photochemical activity in the urban atmosphere of Santiago of Chile
dc.formattext/html
dc.languageen
dc.publisherSociedad Chilena de Química
dc.sourceJournal of the Chilean Chemical Society v.50 n.2 2005
dc.subjectHydroxyl radical
dc.subjectHydroperoxyl radical
dc.subjectPhotochemical smog
dc.titleESTIMATION OF HYDROXYL AND HYDROPEROXYL RADICALS CONCENTRATIONS IN THE URBAN ATMOSPHERE OF SANTIAGO
dc.typeArtículos de revistas


Este ítem pertenece a la siguiente institución