Sugar markers in aerosol particles from an agro-industrial region in Brazil

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dc.contributor.authorUrban, R. C.
dc.contributor.authorAlves, C. A.
dc.contributor.authorAllen, Andrew George [UNESP]
dc.contributor.authorCardoso, Arnaldo Alves [UNESP]
dc.contributor.authorQueiroz, M. E. C.
dc.contributor.authorCampos, M. L. A. M.
dc.contributor.institutionUniversidade de São Paulo (USP)
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionUniv Aveiro
dc.date.accessioned2014-12-03T13:09:01Z
dc.date.available2014-12-03T13:09:01Z
dc.date.issued2014-06-01
dc.description.abstractThis work aimed to better understand how aerosol particles from sugar cane burning contribute to the chemical composition of the lower troposphere in an agro-industrial region of Sao Paulo State (Brazil) affected by sugar and ethanol fuel production. During a period of 21 months, we collected 105 samples and quantified 20 saccharides by GC-MS. The average concentrations of levoglucosan (L), mannosan (M), and galactosan (G) for 24-h sampling were 116, 16, and 11 ng m(-3) respectively. The three anhydrosugars had higher and more variable concentrations in the nighttime and during the sugar cane harvest period, due to more intense biomass burning practices. The calculated L/M ratio, which may serve as a signature for sugar cane smoke particles, was 9 +/- 5. Although the total concentrations of the anhydrosugars varied greatly among samples, the relative mass size distributions of the saccharides were reasonably constant. Emissions due to biomass burning were estimated to correspond to 69% (mass) of the sugars quantified in the harvest samples, whereas biogenic emissions corresponded to 10%. In the non-harvest period, these values were 44 and 27%, respectively, indicating that biomass burning is an important source of aerosol to the regional atmosphere during the whole year. (C) 2014 Elsevier Ltd. All rights reserved.en
dc.description.affiliationUniv Sao Paulo, Dept Chem, BR-14040901 Ribeirao Preto, SP, Brazil
dc.description.affiliationSao Paulo State Univ, Inst Chem, BR-14800900 Araraquara, SP, Brazil
dc.description.affiliationUniv Aveiro, Ctr Environm & Marine Studies, P-3810193 Aveiro, Portugal
dc.description.affiliationUnespSao Paulo State Univ, Inst Chem, BR-14800900 Araraquara, SP, Brazil
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.description.sponsorshipConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.description.sponsorshipIdFAPESP: 08/58073-5
dc.description.sponsorshipIdFAPESP: 10/50236-2
dc.description.sponsorshipIdCNPq: 311668/2011-9
dc.format.extent106-112
dc.identifierhttp://dx.doi.org/10.1016/j.atmosenv.2014.03.034
dc.identifier.citationAtmospheric Environment. Oxford: Pergamon-elsevier Science Ltd, v. 90, p. 106-112, 2014.
dc.identifier.doi10.1016/j.atmosenv.2014.03.034
dc.identifier.issn1352-2310
dc.identifier.lattes9165109840414837
dc.identifier.urihttp://hdl.handle.net/11449/111825
dc.identifier.wosWOS:000335634100013
dc.language.isoeng
dc.publisherElsevier B.V.
dc.relation.ispartofAtmospheric Environment
dc.relation.ispartofjcr3.708
dc.relation.ispartofsjr1,523
dc.rights.accessRightsAcesso restrito
dc.sourceWeb of Science
dc.subjectLevoglucosanen
dc.subjectSugar caneen
dc.subjectEthanol fuelen
dc.subjectAgricultural impacten
dc.titleSugar markers in aerosol particles from an agro-industrial region in Brazilen
dc.typeArtigo
dcterms.licensehttp://www.elsevier.com/about/open-access/open-access-policies/article-posting-policy
dcterms.rightsHolderElsevier B.V.
unesp.author.lattes9165109840414837[4]
unesp.author.orcid0000-0003-2046-995X[4]
unesp.campusUniversidade Estadual Paulista (Unesp), Instituto de Química, Araraquarapt

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Artigos - Química Analítica - IQ