The influence of atmospheric particles on the elemental content of vegetables in urban gardens of Sao Paulo, Brazil

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dc.contributor.authorAMATO LOURENCO, LUIS F.
dc.contributor.authorMOREIRA, TIANA C.L.
dc.contributor.authorSOUZA, VANESSA C. de O.
dc.contributor.authorBARBOSA JUNIOR, FERNANDO
dc.contributor.authorSAIKI, MITIKO
dc.contributor.authorSALDIVA, PAULO H.N.
dc.contributor.authorMAUAD, THAIS
dc.coverageInternacionalpt_BR
dc.date.accessioned2016-08-03T17:56:38Z
dc.date.available2016-08-03T17:56:38Z
dc.date.issued2016pt_BR
dc.description.abstractAlthough urban horticulture provides multiple benefits to society, the extent to which these vegetables are contaminated by the absorption of chemical elements derived from atmospheric deposition is unclear. This study was designed to evaluate the influence of air pollution on leafy vegetables in community gardens of Sao Paulo, Brazil. Vegetable seedlings of Brassica oleracea var. acephala (collard greens) and Spinacia oleracea (spinach) obtained in a non-polluted rural area and growing in vessels containing standard uncontaminated soil were exposed for three consecutive periods of 30, 60 and 90 days in 10 community gardens in Sao Paulo and in one control site. The concentrations of 17 chemical elements (traffic-related elements and those essential to plant biology) were quantified by Inductively Coupled Plasma Mass Spectrometry (ICP-MS). Tillandsia usneoides L. specimens were used as air plant biomonitors. The concentrations of As, Cd, Cr and Pb found in vegetables were compared to the recommended values for consumption. Principal Component Analysis (PCA) was used to cluster the elemental concentrations, and Generalized Linear Models (GLMs) were employed to evaluate the association of the factor scores from each PCA component with variables such as local weather, traffic burden and vertical barriers adjacent to the gardens. We found significant differences in the elemental concentrations of the vegetables in the different community gardens. These differences were related to the overall traffic burden, vertical obstacles and local weather. The Pb and Cd concentrations in both vegetables exceeded the limit values for consumption after 60 days of exposure. A strong correlation was observed between the concentration of traffic-related elements in vegetables and in Tillandsia usneoides L. An exposure response was observed between traffic burden and traffic-derived particles absorbed in the vegetables. Traffic-derived air pollution directly influences the absorption of chemical elements in leafy vegetables, and the levels of these elements may exceed the recommended values for consumption.
dc.format.extent125-134pt_BR
dc.identifier.citationAMATO LOURENCO, LUIS F.; MOREIRA, TIANA C.L.; SOUZA, VANESSA C. de O.; BARBOSA JUNIOR, FERNANDO; SAIKI, MITIKO; SALDIVA, PAULO H.N.; MAUAD, THAIS. The influence of atmospheric particles on the elemental content of vegetables in urban gardens of Sao Paulo, Brazil. <b>Environmental Pollution</b>, v. 216, p. 125-134, 2016. DOI: <a href="https://dx.doi.org/10.1016/j.envpol.2016.05.036">10.1016/j.envpol.2016.05.036</a>. Disponível em: http://repositorio.ipen.br/handle/123456789/26537.
dc.identifier.doi10.1016/j.envpol.2016.05.036
dc.identifier.issn0269-7491pt_BR
dc.identifier.percentilfi91.48
dc.identifier.urihttp://repositorio.ipen.br/handle/123456789/26537
dc.identifier.vol216pt_BR
dc.relation.ispartofEnvironmental Pollutionpt_BR
dc.rightsopenAccesspt_BR
dc.subjectearth atmosphere
dc.subjectparticles
dc.subjectvegetables
dc.subjectbrazil
dc.subjectpollution
dc.subjectfood
dc.subjectrisk assessment
dc.subjecticp mass spectroscopy
dc.subjecthorticulture
dc.subjectmulti-element analysis
dc.titleThe influence of atmospheric particles on the elemental content of vegetables in urban gardens of Sao Paulo, Brazilpt_BR
dc.typeArtigo de periódicopt_BR
dspace.entity.typePublication
ipen.autorMITIKO SAIKI
ipen.codigoautor1178
ipen.contributor.ipenauthorMITIKO SAIKI
ipen.date.recebimento16-08pt_BR
ipen.identifier.fi5.099pt_BR
ipen.identifier.ipendoc22448pt_BR
ipen.identifier.ods11
ipen.range.fi4.500 - 5.999
ipen.range.percentilfi75.00 - 100.00
ipen.type.genreArtigo
relation.isAuthorOfPublication78e9df14-8ccf-4a31-a02f-4a8a4c111c14
relation.isAuthorOfPublication.latestForDiscovery78e9df14-8ccf-4a31-a02f-4a8a4c111c14
sigepi.autor.atividadeSAIKI, MITIKO:1178:320:N
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