Formation of secondary aerosols from the ozonolysis of styrene: effect of SO2 and H2O.

In this work we report the study of the ozonolysis of styrene and the reaction conditions leading to the formation of secondary aerosols. The reactions have been carried out in a Teflon chamber filled with synthetic air mixtures at atmospheric pressure and room temperature. We have found that the oz...

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Detalles Bibliográficos
Autores: Díaz de Mera, Yolanda, Aranda Rubio, Alfonso, Martínez Ataz, Ernesto, Rodríguez, Ana Angustias, Rodriguez, D., Rodríguez, Ana
Tipo de recurso: artículo
Fecha de publicación:2017
País:España
Institución:Universidad de Castilla-La Mancha
Repositorio:RUIdeRA. Repositorio Institucional de la UCLM
OAI Identifier:oai:ruidera.uclm.es:10578/29087
Acceso en línea:http://hdl.handle.net/10578/29087
Access Level:acceso abierto
Palabra clave:Styrene
SOA
SO2
Ozone
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spelling Formation of secondary aerosols from the ozonolysis of styrene: effect of SO2 and H2O.Díaz de Mera, YolandaAranda Rubio, AlfonsoMartínez Ataz, ErnestoRodríguez, Ana AngustiasRodriguez, D.Rodríguez, AnaStyreneSOASO2OzoneIn this work we report the study of the ozonolysis of styrene and the reaction conditions leading to the formation of secondary aerosols. The reactions have been carried out in a Teflon chamber filled with synthetic air mixtures at atmospheric pressure and room temperature. We have found that the ozonolysis of styrene in the presence of low concentrations of SO2 readily produces new particles under concentrations of reactants lower than those required in experiments in the absence of SO2. Thus, nucleation events occur at concentrations around (5.6 ± 1.7) × 108molecule cm−3 (errors are 2σ±20%) and SO2 is consumed during the experiments. The reaction of the Criegee intermediates with SO2 to produce SO3 and then H2SO4 may explain (together with OH reactions’ contribution) the high capacity of styrene to produce particulate matter in polluted atmospheres. The formation of secondary aerosols in the smog chamber is inhibited under high H2O concentrations. So, the potential formation of secondary aerosols under atmospheric conditions depends on the concentration of SO2 and relative humidity, with a water to SO2 rate constants ratio kH2O/kSO2 = (2.8 ± 0.7) × 10−5 (errors are 2σ±20%).Elsevier202120212017info:eu-repo/semantics/articleapplication/pdfapplication/pdfhttp://hdl.handle.net/10578/29087reponame:RUIdeRA. Repositorio Institucional de la UCLMinstname:Universidad de Castilla-La ManchaInglésinfo:eu-repo/semantics/openAccessoai:ruidera.uclm.es:10578/290872026-05-27T07:36:41Z
dc.title.none.fl_str_mv Formation of secondary aerosols from the ozonolysis of styrene: effect of SO2 and H2O.
title Formation of secondary aerosols from the ozonolysis of styrene: effect of SO2 and H2O.
spellingShingle Formation of secondary aerosols from the ozonolysis of styrene: effect of SO2 and H2O.
Díaz de Mera, Yolanda
Styrene
SOA
SO2
Ozone
title_short Formation of secondary aerosols from the ozonolysis of styrene: effect of SO2 and H2O.
title_full Formation of secondary aerosols from the ozonolysis of styrene: effect of SO2 and H2O.
title_fullStr Formation of secondary aerosols from the ozonolysis of styrene: effect of SO2 and H2O.
title_full_unstemmed Formation of secondary aerosols from the ozonolysis of styrene: effect of SO2 and H2O.
title_sort Formation of secondary aerosols from the ozonolysis of styrene: effect of SO2 and H2O.
dc.creator.none.fl_str_mv Díaz de Mera, Yolanda
Aranda Rubio, Alfonso
Martínez Ataz, Ernesto
Rodríguez, Ana Angustias
Rodriguez, D.
Rodríguez, Ana
author Díaz de Mera, Yolanda
author_facet Díaz de Mera, Yolanda
Aranda Rubio, Alfonso
Martínez Ataz, Ernesto
Rodríguez, Ana Angustias
Rodriguez, D.
Rodríguez, Ana
author_role author
author2 Aranda Rubio, Alfonso
Martínez Ataz, Ernesto
Rodríguez, Ana Angustias
Rodriguez, D.
Rodríguez, Ana
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv Styrene
SOA
SO2
Ozone
topic Styrene
SOA
SO2
Ozone
description In this work we report the study of the ozonolysis of styrene and the reaction conditions leading to the formation of secondary aerosols. The reactions have been carried out in a Teflon chamber filled with synthetic air mixtures at atmospheric pressure and room temperature. We have found that the ozonolysis of styrene in the presence of low concentrations of SO2 readily produces new particles under concentrations of reactants lower than those required in experiments in the absence of SO2. Thus, nucleation events occur at concentrations around (5.6 ± 1.7) × 108molecule cm−3 (errors are 2σ±20%) and SO2 is consumed during the experiments. The reaction of the Criegee intermediates with SO2 to produce SO3 and then H2SO4 may explain (together with OH reactions’ contribution) the high capacity of styrene to produce particulate matter in polluted atmospheres. The formation of secondary aerosols in the smog chamber is inhibited under high H2O concentrations. So, the potential formation of secondary aerosols under atmospheric conditions depends on the concentration of SO2 and relative humidity, with a water to SO2 rate constants ratio kH2O/kSO2 = (2.8 ± 0.7) × 10−5 (errors are 2σ±20%).
publishDate 2017
dc.date.none.fl_str_mv 2017
2021
2021
dc.type.none.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv http://hdl.handle.net/10578/29087
url http://hdl.handle.net/10578/29087
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv reponame:RUIdeRA. Repositorio Institucional de la UCLM
instname:Universidad de Castilla-La Mancha
instname_str Universidad de Castilla-La Mancha
reponame_str RUIdeRA. Repositorio Institucional de la UCLM
collection RUIdeRA. Repositorio Institucional de la UCLM
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,301629

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