Organic aerosols in a Brazilian agro-industrial area: Speciation and impact of biomass burning
Autor(a) principal: | |
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Data de Publicação: | 2016 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1016/j.atmosres.2015.10.008 http://hdl.handle.net/11449/220493 |
Resumo: | This work presents the first comprehensive organic characterization of atmospheric aerosols from an agro-industrial region (São Paulo State, Brazil) highly impacted by biomass burning. The organic speciation was performed using different solvents of increasing polarity, enabling the identification and quantification of 172 different organic species by GC-MS. The mass of organic compounds reached 123μgm-3 in an aerosol sample collected during the sugar cane harvest period compared with 0.82μgm-3 in the non-harvest period. The samples most impacted by biomass burning were those with the highest percentages of non-polar compounds (n-alkanes; up to 96%). However, in absolute terms, the total mass of polar compounds in such samples was greater than for samples less impacted by this activity. Retene (a marker for biomass combustion) was the most abundant of the 19 polycyclic aromatic hydrocarbons quantified, corresponding to 14%-84%. This work shows that biomass burning was responsible for a benzo(a)pyrene equivalent index value that exceeded the recommendation of the World Health Organization. Principal component analysis indicated that agricultural biomass burning and emissions from crop processing facilities explained 42% of the variance of the data, while 37% was explained by urban emissions, 10% by vehicle emissions, and 10% by biogenic sources. This study provides insights into the emissions of a suite of organic compounds that could participate in anthropic alteration of regional cloud formation and precipitation patterns. |
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Organic aerosols in a Brazilian agro-industrial area: Speciation and impact of biomass burningChemical speciationOrganic aerosolPAHStatistical analysisSugar caneThis work presents the first comprehensive organic characterization of atmospheric aerosols from an agro-industrial region (São Paulo State, Brazil) highly impacted by biomass burning. The organic speciation was performed using different solvents of increasing polarity, enabling the identification and quantification of 172 different organic species by GC-MS. The mass of organic compounds reached 123μgm-3 in an aerosol sample collected during the sugar cane harvest period compared with 0.82μgm-3 in the non-harvest period. The samples most impacted by biomass burning were those with the highest percentages of non-polar compounds (n-alkanes; up to 96%). However, in absolute terms, the total mass of polar compounds in such samples was greater than for samples less impacted by this activity. Retene (a marker for biomass combustion) was the most abundant of the 19 polycyclic aromatic hydrocarbons quantified, corresponding to 14%-84%. This work shows that biomass burning was responsible for a benzo(a)pyrene equivalent index value that exceeded the recommendation of the World Health Organization. Principal component analysis indicated that agricultural biomass burning and emissions from crop processing facilities explained 42% of the variance of the data, while 37% was explained by urban emissions, 10% by vehicle emissions, and 10% by biogenic sources. This study provides insights into the emissions of a suite of organic compounds that could participate in anthropic alteration of regional cloud formation and precipitation patterns.Faculdade de Filosofia Departamento de Química Ciências e Letras de Ribeirão Preto Universidade de São Paulo, Av Bandeirantes 3900Departamento de Ambiente Centro de Estudos do Ambiente e do Mar Universidade de AveiroInstituto de Química Universidade do Estado de São PauloInstituto de Química Universidade Federal de Goiás, Av Esperança s/nUniversidade de São Paulo (USP)Universidade de AveiroUniversidade do Estado de São PauloUniversidade Federal de Goiás (UFG)Urban, R. C.Alves, C. A.Allen, A. G.Cardoso, A. A.Campos, M. L.A.M.2022-04-28T19:01:44Z2022-04-28T19:01:44Z2016-03-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article271-279http://dx.doi.org/10.1016/j.atmosres.2015.10.008Atmospheric Research, v. 169, p. 271-279.0169-8095http://hdl.handle.net/11449/22049310.1016/j.atmosres.2015.10.0082-s2.0-84946811205Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengAtmospheric Researchinfo:eu-repo/semantics/openAccess2022-04-28T19:01:44Zoai:repositorio.unesp.br:11449/220493Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462022-04-28T19:01:44Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Organic aerosols in a Brazilian agro-industrial area: Speciation and impact of biomass burning |
title |
Organic aerosols in a Brazilian agro-industrial area: Speciation and impact of biomass burning |
spellingShingle |
Organic aerosols in a Brazilian agro-industrial area: Speciation and impact of biomass burning Urban, R. C. Chemical speciation Organic aerosol PAH Statistical analysis Sugar cane |
title_short |
Organic aerosols in a Brazilian agro-industrial area: Speciation and impact of biomass burning |
title_full |
Organic aerosols in a Brazilian agro-industrial area: Speciation and impact of biomass burning |
title_fullStr |
Organic aerosols in a Brazilian agro-industrial area: Speciation and impact of biomass burning |
title_full_unstemmed |
Organic aerosols in a Brazilian agro-industrial area: Speciation and impact of biomass burning |
title_sort |
Organic aerosols in a Brazilian agro-industrial area: Speciation and impact of biomass burning |
author |
Urban, R. C. |
author_facet |
Urban, R. C. Alves, C. A. Allen, A. G. Cardoso, A. A. Campos, M. L.A.M. |
author_role |
author |
author2 |
Alves, C. A. Allen, A. G. Cardoso, A. A. Campos, M. L.A.M. |
author2_role |
author author author author |
dc.contributor.none.fl_str_mv |
Universidade de São Paulo (USP) Universidade de Aveiro Universidade do Estado de São Paulo Universidade Federal de Goiás (UFG) |
dc.contributor.author.fl_str_mv |
Urban, R. C. Alves, C. A. Allen, A. G. Cardoso, A. A. Campos, M. L.A.M. |
dc.subject.por.fl_str_mv |
Chemical speciation Organic aerosol PAH Statistical analysis Sugar cane |
topic |
Chemical speciation Organic aerosol PAH Statistical analysis Sugar cane |
description |
This work presents the first comprehensive organic characterization of atmospheric aerosols from an agro-industrial region (São Paulo State, Brazil) highly impacted by biomass burning. The organic speciation was performed using different solvents of increasing polarity, enabling the identification and quantification of 172 different organic species by GC-MS. The mass of organic compounds reached 123μgm-3 in an aerosol sample collected during the sugar cane harvest period compared with 0.82μgm-3 in the non-harvest period. The samples most impacted by biomass burning were those with the highest percentages of non-polar compounds (n-alkanes; up to 96%). However, in absolute terms, the total mass of polar compounds in such samples was greater than for samples less impacted by this activity. Retene (a marker for biomass combustion) was the most abundant of the 19 polycyclic aromatic hydrocarbons quantified, corresponding to 14%-84%. This work shows that biomass burning was responsible for a benzo(a)pyrene equivalent index value that exceeded the recommendation of the World Health Organization. Principal component analysis indicated that agricultural biomass burning and emissions from crop processing facilities explained 42% of the variance of the data, while 37% was explained by urban emissions, 10% by vehicle emissions, and 10% by biogenic sources. This study provides insights into the emissions of a suite of organic compounds that could participate in anthropic alteration of regional cloud formation and precipitation patterns. |
publishDate |
2016 |
dc.date.none.fl_str_mv |
2016-03-01 2022-04-28T19:01:44Z 2022-04-28T19:01:44Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.1016/j.atmosres.2015.10.008 Atmospheric Research, v. 169, p. 271-279. 0169-8095 http://hdl.handle.net/11449/220493 10.1016/j.atmosres.2015.10.008 2-s2.0-84946811205 |
url |
http://dx.doi.org/10.1016/j.atmosres.2015.10.008 http://hdl.handle.net/11449/220493 |
identifier_str_mv |
Atmospheric Research, v. 169, p. 271-279. 0169-8095 10.1016/j.atmosres.2015.10.008 2-s2.0-84946811205 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Atmospheric Research |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
271-279 |
dc.source.none.fl_str_mv |
Scopus reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1803649695361269760 |