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Atmospheric particulate matter levels, chemical composition and optical absorbing properties in Camagüey, Cuba

dc.contributor.authorBarja, Boris
dc.contributor.authorMogo, Sandra
dc.contributor.authorCachorro, Victoria
dc.contributor.authorAntuña, Juan Carlos
dc.contributor.authorEstevan, Rene
dc.contributor.authorRodrigues, Ana
dc.contributor.authorde Frutos, Ángel M
dc.date.accessioned2018-08-27T15:59:49Z
dc.date.available2018-08-27T15:59:49Z
dc.date.issued2013
dc.description.abstractAtmospheric aerosol particles were collected at Camagüey, Cuba, during the period from February 2008 to April 2009 in order to know the particulate matter levels (PM) together with a general chemical and absorption characterization. The aerosols collection was carried out with a low volume particulate impactor twice a week. Gravimetric analysis of the particulate matter fractions PM10 and PM1 was carried out. An analysis of the eight major inorganic species (Na+, K +, Ca2+ , Mg2+, NH4+, Cl , NO3 and SO42 ) using ionic chromatography was conducted. The results were analyzed in two periods, the high aerosol concentration period (May to August) and the period with low aerosol concentration (the other months). During the high concentration period the average PM10 and PM1 levels were 35.11 mg m 3 (std 1⁄4 15.45 mg m 3) and 16.86 mg m 3 (std 1⁄4 6.14 mg m 3). During the low concentration period the average PM10 and PM1 levels were 23.13 mg m 3 (std 1⁄4 5.00 mg m 3) and 13.00 mg m 3 (std 1⁄4 4.02 mg m 3). For both periods, Cl , Na+ and NO3 are the predominant species in the coarse fraction (PM1-10), and SO42 and NH4+ are the predominant species in the fine fraction (PM1). The spectral aerosol absorption coefficient, sa, was measured for the wavelength range 400–700 nm with 10 nm steps. The sa values were obtained with a filter transmission method for the fine fraction and were evaluated for 54 days covering a wide range of atmospheric conditions including a Saharan dust intrusion. sa ranges from 8.5 M m 1 to 34.5 M m 1 at a wavelength of 550 nm, with a mean value of 18.7 M m 1. The absorption Ångström parameter, aa, calculated for the pair of wavelengths (450/700 nm) presents a mean value of 0.33 (std 1⁄4 0.19), which is a very low value comparing with those that can be found in the bibliography. Although the sampling period is short, these data represent the first evaluation of PM values with their chemical and optical absorption characterization in Cuba. In addition to the regional interest, the presented values can be directly used by those working with absorption, forcing by aerosols and radiative transfer calculations in general. Also, these data can be used as input in Global Climate Models.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.doi10.1039/C2EM30854Apt_PT
dc.identifier.urihttp://hdl.handle.net/10400.6/5774
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.subjectAerosolspt_PT
dc.subjectParticulate matter levelspt_PT
dc.subjectChemical compositionpt_PT
dc.subjectOptical propertiespt_PT
dc.titleAtmospheric particulate matter levels, chemical composition and optical absorbing properties in Camagüey, Cubapt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage453pt_PT
oaire.citation.issue2pt_PT
oaire.citation.startPage440pt_PT
oaire.citation.titleEnvironmental Science: Processes and Impactspt_PT
oaire.citation.volume15pt_PT
person.familyNameMogo
person.familyNameCachorro
person.familyNamede Frutos
person.givenNameSandra
person.givenNameVictoria
person.givenNameÁngel M
person.identifier340036
person.identifier.ciencia-id1717-63EA-3853
person.identifier.orcid0000-0002-1423-2668
person.identifier.orcid0000-0002-4627-9444
person.identifier.orcid0000-0001-5748-5078
person.identifier.scopus-author-id6508333851
person.identifier.scopus-author-id7004005379
person.identifier.scopus-author-id6603892355
rcaap.embargofctCopyright cedido à editora no momento da publicação.pt_PT
rcaap.rightsclosedAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublication4c37dfc5-2e33-49f8-b105-5421875a536d
relation.isAuthorOfPublication01969a6d-9e30-47cc-b72a-4ee3be0ad540
relation.isAuthorOfPublication5f7234e6-1637-4781-8edb-1b8a193ae7c0
relation.isAuthorOfPublication.latestForDiscovery01969a6d-9e30-47cc-b72a-4ee3be0ad540

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