Measurements and simulation of speciated PM2.5 in south-west Europe

Chemically speciated concentrations of PM2.5 (sulphate, ammonium, nitrate, elemental and organic carbon) were simulated in south-west Europe using the three-dimensional air quality model CAMx driven by the MM5 meteorological model. The inner domain covered the south-west region of Spain with a high...

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Autores: Milford, C., Castell, Nuria, Marrero, C., Rodríguez González, Sergio, Sánchez de la Campa Verdona, Ana María, Fernández Camacho, Rocío, Rosa Díaz, Jesús de la, Stein, Ariel
Tipo de recurso: artículo
Fecha de publicación:2013
País:España
Institución:Universidad de Huelva (UHU)
Repositorio:Arias Montano. Repositorio Institucional de la Universidad de Huelva
Idioma:inglés
OAI Identifier:oai:ariasmontano.uhu.es:10272/9992
Acceso en línea:http://hdl.handle.net/10272/9992
Access Level:acceso abierto
Palabra clave:PM2.5 chemical speciation
Air quality
CAMx
Model evaluation
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spelling Measurements and simulation of speciated PM2.5 in south-west EuropeMilford, C.Castell, NuriaMarrero, C.Rodríguez González, SergioSánchez de la Campa Verdona, Ana MaríaFernández Camacho, RocíoRosa Díaz, Jesús de laStein, ArielPM2.5 chemical speciationAir qualityCAMxModel evaluationChemically speciated concentrations of PM2.5 (sulphate, ammonium, nitrate, elemental and organic carbon) were simulated in south-west Europe using the three-dimensional air quality model CAMx driven by the MM5 meteorological model. The inner domain covered the south-west region of Spain with a high spatial (2 km 2 km) and temporal resolution (1 h). The simulation results were evaluated against experimental data obtained in four intensive field campaigns performed in 2008 and 2009 at urban and rural sites. PM2.5 measurements of secondary inorganic compounds and carbonaceous aerosol plus a suite of major and trace elements were determined. High time resolution (10 min) measurements of Black Carbon (BC) were also conducted. The model captured the variability in the ammonium concentrations in both summer and winter periods, although it tended to underestimate the magnitude of concentrations, while for sulphate the performance was better during the summer periods. Particulate ammonium nitrate was only simulated in significant concentrations in the wintertime campaign. This was found to be consistent with the measured composition of PM2.5 where most of nitrate (79e94%) and a significant fraction of sulphate (24e37%) were estimated to be present as non-ammonium salts. These non-ammonium nitrate salts were attributed to the formation of NaNO3. The model PM2.5 primary elemental carbon simulations, evaluated with hourly resolution, captured the diurnal and seasonal variability of PM2.5 BC concentrations at the urban site while poorer performance was observed at the rural site. A large underestimation was observed for simulated PM2.5 organic carbon concentrations during all campaigns. Scenarios of pollution events linked to emissions from south-west Spain, shipping and contributions from more distant emission sources such as Portugal were identified. These results highlight how the distinct features of PM2.5 composition in southern Europe regions, such as the large contribution of non-ammonium salts, need to be taken into account both in model evaluation and in future implementation of aerosol modelling systems.Elsevier20132013-01-0120132013-01-01journal articlehttp://purl.org/coar/resource_type/c_6501info:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10272/9992reponame:Arias Montano. Repositorio Institucional de la Universidad de Huelvainstname:Universidad de Huelva (UHU)Inglésengopen accesshttp://purl.org/coar/access_right/c_abf2Atribución-NoComercial-SinDerivadas 3.0 Españahttp://creativecommons.org/licenses/by-nc-nd/3.0/es/info:eu-repo/semantics/openAccessoai:ariasmontano.uhu.es:10272/99922026-06-02T14:58:11Z
dc.title.none.fl_str_mv Measurements and simulation of speciated PM2.5 in south-west Europe
title Measurements and simulation of speciated PM2.5 in south-west Europe
spellingShingle Measurements and simulation of speciated PM2.5 in south-west Europe
Milford, C.
PM2.5 chemical speciation
Air quality
CAMx
Model evaluation
title_short Measurements and simulation of speciated PM2.5 in south-west Europe
title_full Measurements and simulation of speciated PM2.5 in south-west Europe
title_fullStr Measurements and simulation of speciated PM2.5 in south-west Europe
title_full_unstemmed Measurements and simulation of speciated PM2.5 in south-west Europe
title_sort Measurements and simulation of speciated PM2.5 in south-west Europe
dc.creator.none.fl_str_mv Milford, C.
Castell, Nuria
Marrero, C.
Rodríguez González, Sergio
Sánchez de la Campa Verdona, Ana María
Fernández Camacho, Rocío
Rosa Díaz, Jesús de la
Stein, Ariel
author Milford, C.
author_facet Milford, C.
Castell, Nuria
Marrero, C.
Rodríguez González, Sergio
Sánchez de la Campa Verdona, Ana María
Fernández Camacho, Rocío
Rosa Díaz, Jesús de la
Stein, Ariel
author_role author
author2 Castell, Nuria
Marrero, C.
Rodríguez González, Sergio
Sánchez de la Campa Verdona, Ana María
Fernández Camacho, Rocío
Rosa Díaz, Jesús de la
Stein, Ariel
author2_role author
author
author
author
author
author
author
dc.contributor.none.fl_str_mv
dc.subject.none.fl_str_mv PM2.5 chemical speciation
Air quality
CAMx
Model evaluation
topic PM2.5 chemical speciation
Air quality
CAMx
Model evaluation
description Chemically speciated concentrations of PM2.5 (sulphate, ammonium, nitrate, elemental and organic carbon) were simulated in south-west Europe using the three-dimensional air quality model CAMx driven by the MM5 meteorological model. The inner domain covered the south-west region of Spain with a high spatial (2 km 2 km) and temporal resolution (1 h). The simulation results were evaluated against experimental data obtained in four intensive field campaigns performed in 2008 and 2009 at urban and rural sites. PM2.5 measurements of secondary inorganic compounds and carbonaceous aerosol plus a suite of major and trace elements were determined. High time resolution (10 min) measurements of Black Carbon (BC) were also conducted. The model captured the variability in the ammonium concentrations in both summer and winter periods, although it tended to underestimate the magnitude of concentrations, while for sulphate the performance was better during the summer periods. Particulate ammonium nitrate was only simulated in significant concentrations in the wintertime campaign. This was found to be consistent with the measured composition of PM2.5 where most of nitrate (79e94%) and a significant fraction of sulphate (24e37%) were estimated to be present as non-ammonium salts. These non-ammonium nitrate salts were attributed to the formation of NaNO3. The model PM2.5 primary elemental carbon simulations, evaluated with hourly resolution, captured the diurnal and seasonal variability of PM2.5 BC concentrations at the urban site while poorer performance was observed at the rural site. A large underestimation was observed for simulated PM2.5 organic carbon concentrations during all campaigns. Scenarios of pollution events linked to emissions from south-west Spain, shipping and contributions from more distant emission sources such as Portugal were identified. These results highlight how the distinct features of PM2.5 composition in southern Europe regions, such as the large contribution of non-ammonium salts, need to be taken into account both in model evaluation and in future implementation of aerosol modelling systems.
publishDate 2013
dc.date.none.fl_str_mv 2013
2013-01-01
2013
2013-01-01
dc.type.none.fl_str_mv journal article
http://purl.org/coar/resource_type/c_6501
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv http://hdl.handle.net/10272/9992
url http://hdl.handle.net/10272/9992
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
Atribución-NoComercial-SinDerivadas 3.0 España
http://creativecommons.org/licenses/by-nc-nd/3.0/es/
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
Atribución-NoComercial-SinDerivadas 3.0 España
http://creativecommons.org/licenses/by-nc-nd/3.0/es/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv reponame:Arias Montano. Repositorio Institucional de la Universidad de Huelva
instname:Universidad de Huelva (UHU)
instname_str Universidad de Huelva (UHU)
reponame_str Arias Montano. Repositorio Institucional de la Universidad de Huelva
collection Arias Montano. Repositorio Institucional de la Universidad de Huelva
repository.name.fl_str_mv
repository.mail.fl_str_mv
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