The relationship between aerosol particles chemical composition and optical properties to identify the biomass burning contribution to fine particles concentration: a case study for Sao Paulo city, Brazil

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dc.citation.issue1
dc.citation.volume189
dc.contributor.authorde Miranda, Regina Maura
dc.contributor.authorLopes, Fabio
dc.contributor.authorRosario, Nilton Evora do [UNIFESP]
dc.contributor.authorYamasoe, Marcia Akemi
dc.contributor.authorLandulfo, Eduardo
dc.contributor.authorAndrade, Maria de Fatima
dc.coverageDordrecht
dc.date.accessioned2020-07-31T12:46:57Z
dc.date.available2020-07-31T12:46:57Z
dc.date.issued2017
dc.description.abstractThe air quality in the Metropolitan Area of Sao Paulo (MASP) is primarily determined by the local pollution source contribution, mainly the vehicular fleet, but there is a concern about the role of remote sources to the fine mode particles (PM2.5) concentration and composition. One of the most important remote sources of atmospheric aerosol is the biomass burning emissions from Sao Paulo state's inland and from the central and north portions of Brazil. This study presents a synergy of different measurements of atmospheric aerosol chemistry and optical properties in the MASP in order to show how they can be used as a tool to identify particles from local and remote sources. For the clear identification of the local and remote source contribution, aerosol properties measurements at surface level were combined with vertical profiles information. Over 15 days in the austral winter of 2012, particulate matter (PM) was collected using a cascade impactor and a Partisol sampler in Sao Paulo City. Mass concentrations were determined by gravimetry, black carbon concentrations by reflectance, and trace element concentrations by X-ray fluorescence. Aerosol optical properties were studied using a multifilter rotating shadowband radiometer (MFRSR), a Lidar system and satellite data. Optical properties, concentrations, size distributions, and elemental composition of atmospheric particles were strongly related and varied according to meteorological conditions. During the sampling period, PM mean mass concentrations were 17.4 +/- 10.1 and 15.3 +/- 6.9 mu g/m(3) for the fine and coarse fractions, respectively. The mean aerosol optical depths at 415 nm and Angstrom exponent (AE) over the whole period were 0.29 +/- 0.14 and 1.35 +/- 0.11, respectively. Lidar ratios reached values of 75 sr. The analyses of the impacts of an event of biomass burning smoke transport to the Sao Paulo city revealed significant changing on local aerosol concentrations and optical parameters. The identification of the source contributions, local and remote, to the fine particles in MASP can be more precisely achieved when particle size composition and distribution, vertical profile of aerosols, and air mass trajectories are analyzed in combination.en
dc.description.affiliationUniv Sao Paulo, Sch Arts Sci & Humanities, Rua Arlindo Bettio1000, BR-03828000 Sao Paulo, SP, Brazil
dc.description.affiliationUniv Sao Paulo, Inst Astron Geofis & Ciencias Atmosfer, Dept Ciencias Atmosfer, Rua Matao 1226, BR-05508090 Sao Paulo, SP, Brazil
dc.description.affiliationUniv Fed Sao Paulo, Dept Environm Sci, Rua Prof Artur Riedel 275, BR-09972270 Diadema, SP, Brazil
dc.description.affiliationIPEN CNEN SP, Nucl & Energy Res Inst, Av Lineu Prestes 2242, BR-05508000 Sao Paulo, SP, Brazil
dc.description.affiliationUnifespEnvironmental Sciences Department, Universidade Federal de São Paulo (UNIFESP), Rua Prof Artur Riedel 275, BR-09972270, Diadema, SP, Brazil
dc.description.sourceWeb of Science
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.description.sponsorshipIDFAPESP: 2008/58104-8
dc.description.sponsorshipIDFAPESP: 2011/14365-5
dc.description.sponsorshipIDFAPESP: 2012/24689-5
dc.format.extent-
dc.identifierhttp://dx.doi.org/10.1007/s10661-016-5659-7
dc.identifier.citationEnvironmental Monitoring And Assessment. Dordrecht, v. 189, n. 1, p. -, 2017.
dc.identifier.doi10.1007/s10661-016-5659-7
dc.identifier.issn0167-6369
dc.identifier.urihttps://repositorio.unifesp.br/handle/11600/56482
dc.identifier.wosWOS:000392300300006
dc.language.isoeng
dc.publisherSpringer
dc.relation.ispartofEnvironmental Monitoring And Assessment
dc.rightsinfo:eu-repo/semantics/restrictedAccess
dc.subjectUrban aerosolsen
dc.subjectBiomass burningen
dc.subjectChemical compositionen
dc.subjectOptical propertiesen
dc.titleThe relationship between aerosol particles chemical composition and optical properties to identify the biomass burning contribution to fine particles concentration: a case study for Sao Paulo city, Brazilen
dc.typeinfo:eu-repo/semantics/article
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