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Determination of airborne nanoparticles in elderly care centres

dc.contributor.authorAlmeida-Silva, Marina
dc.contributor.authorAlmeida, Susana Marta
dc.contributor.authorGomes, João
dc.contributor.authorAlbuquerque, Paula
dc.contributor.authorWolterbeek, H. T.
dc.date.accessioned2015-08-24T10:55:47Z
dc.date.available2015-08-24T10:55:47Z
dc.date.issued2014
dc.description.abstractAccording to numerous studies, airborne nanoparticles have a potential to produce serious adverse human health effects when deposited into the respiratory tract. The most important parts of the lung are the alveolar regions with their enormous surface areas and potential to transfer nanoparticles into the blood stream. These effects may be potentiated in case of the elderly, since this population is more susceptible to air pollutants in general and more to nanoparticles than larger particles. The main goal of this investigation was to determine the exposure of institutionalized elders to nanoparticles using Nanoparticle Surface Area Monitor (NSAM) equipment to calculate the deposited surface area (DSA) of nanoparticles into elderly lungs. In total, 193 institutionalized individuals over 65 yr of age were examined in four elderly care centers (ECC). The occupancy daily pattern was achieved by applying a questionnaire, and it was concluded that these subjects spent most of their time indoors, including the bedroom and living room, the indoor microenvironments with higher prevalence of elderly occupancy. The deposited surface area ranged from 10 to 46 mu m(2)/cm(3). The living rooms presented significantly higher levels compared with bedrooms. Comparing PM10 concentrations with nanoparticles deposited surface area in elderly lungs, it is conceivable that living rooms presented the highest concentration of PM10 and were similar to the highest average DSA. The temporal distribution of DSA was also assessed. While data showed a quantitative fluctuation in values in bedrooms, high peaks were detected in living rooms.por
dc.identifier.citationALMEIDA-SILVA, M.; [et al] – Determination of airborne nanoparticles in elderly care centres. Journal of Toxicology and Enviromental Health – Part A-Current Issues. ISSN: 1528-7394. Vol. 77, nr. 14-16 (2014), pp. 867-878por
dc.identifier.doi10.1080/15287394.2014.910157
dc.identifier.issn1528-7394
dc.identifier.issn1087-2620
dc.identifier.urihttp://hdl.handle.net/10400.21/4933
dc.language.isoengpor
dc.peerreviewedyespor
dc.publisherTaylor & Francis Incpor
dc.subjectIndoor air pollutionpor
dc.subjectPrimary schoolspor
dc.subjectUltrafine particlespor
dc.subjectParticulate matterpor
dc.subjectPollutantspor
dc.subjectExposurepor
dc.subjectLisbonpor
dc.subjectUrban landscapepor
dc.subjectQualitypor
dc.subjectEnvironmentpor
dc.titleDetermination of airborne nanoparticles in elderly care centrespor
dc.typejournal article
dspace.entity.typePublication
oaire.citation.conferencePlacePhiladelphiapor
oaire.citation.endPage878por
oaire.citation.issue14-16por
oaire.citation.startPage867por
oaire.citation.titleJournal of Toxicology and Enviromental Health – Part A-Current Issuespor
oaire.citation.volume77por
person.familyNameGomes
person.familyNameAlbuquerque
person.givenNameJoão
person.givenNamePaula
person.identifier60203
person.identifier.ciencia-id0212-E6D6-566C
person.identifier.ciencia-id9512-CE2D-AB39
person.identifier.orcid0000-0003-2579-6669
person.identifier.orcid0000-0002-7636-1756
person.identifier.ridL-1465-2013
person.identifier.scopus-author-id56113031900
person.identifier.scopus-author-id57201758122
rcaap.rightsclosedAccesspor
rcaap.typearticlepor
relation.isAuthorOfPublicatione44cd72e-bcbb-4612-a274-60cb1915bc0c
relation.isAuthorOfPublicationdc5d92f4-3eb8-47c1-b202-834201ef26bf
relation.isAuthorOfPublication.latestForDiscoverydc5d92f4-3eb8-47c1-b202-834201ef26bf

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