Evaluation of the spatial variability of the elements in tree barks used as biomonitors of atmospheric pollution

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dc.contributor.authorISHIMARU, G.pt_BR
dc.contributor.authorSANTOS, E.C.pt_BR
dc.contributor.authorSAIKI, M.pt_BR
dc.coverageNacionalpt_BR
dc.date.accessioned2021-08-03T13:39:09Z
dc.date.available2021-08-03T13:39:09Z
dc.date.issued2021pt_BR
dc.description.abstractTree barks have proven to be a valuable source of information on air quality. Nowadays, studies with this biomonitor are constantly being developed. However, data of several factors that affect the accumulation of the pollutants in the barks, such as bark porosity, duration of the deposition on the bark and dispersion or variability of pollutants in a defined area, are scarce in the literature. The aim of this study was to evaluate the spatial variability of chemical elements concentrations accumulated on Sibipiruna (Cenostigna pluviosarum) barks in order to examine their aerial dispersion in two small urban areas of the Metropolitan Area of São Paulo. The neutron activation analysis (NAA) applied in the analyses consisted of irradiation the aliquots of the sample together the synthetic element standards at the IEA-R1 nuclear reactor. Concentrations of the As, Br, Ca, Co, Cr, Cs, Fe, K, La, Mn, Rb, Sb, Sc, V and Zn were determined in tree barks using short and long irradiations. Results obtained in the analyses of the tree bark samples indicated that the variability of element concentrations depends on the element, study area and numbers of trees. The variability of element concentrations in general was higher for elements presenting low concentrations. Quality control of the analytical results was evaluated by the analysis of INCT-MPH-2 Mixed Polish Herbs Certified Reference Material and these results presented good accuracy with values of standardized difference or |ζ score| ≤ 2, indicating that the procedure of NAA applied is suitable for the analyses.pt_BR
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)pt_BR
dc.description.sponsorshipConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)pt_BR
dc.description.sponsorshipIDFAPESP: 13/21728-2pt_BR
dc.description.sponsorshipIDCNPq: 303662/2018-2pt_BR
dc.format.extent1-13pt_BR
dc.identifier.citationISHIMARU, G.; SANTOS, E.C.; SAIKI, M. Evaluation of the spatial variability of the elements in tree barks used as biomonitors of atmospheric pollution. <b>Brazilian Journal of Radiation Sciences</b>, v. 9, n. 1A, p. 1-13, 2021. DOI: <a href="https://dx.doi.org/10.15392/bjrs.v9i1A.1386">10.15392/bjrs.v9i1A.1386</a>. Disponível em: http://repositorio.ipen.br/handle/123456789/32108.
dc.identifier.doi10.15392/bjrs.v9i1A.1386pt_BR
dc.identifier.fasciculo1Apt_BR
dc.identifier.issn2319-0612pt_BR
dc.identifier.orcid0000-0003-2197-3592pt_BR
dc.identifier.percentilfiSem Percentilpt_BR
dc.identifier.urihttp://repositorio.ipen.br/handle/123456789/32108
dc.identifier.vol9pt_BR
dc.relation.ispartofBrazilian Journal of Radiation Sciencespt_BR
dc.rightsopenAccesspt_BR
dc.sourceMeeting on Nuclear Applications (ENAN), 14th, October 21-25, 2019, Santos, SPpt_BR
dc.subjectair pollution monitoring
dc.subjectbark
dc.subjectbiological markers
dc.subjectconcentration ratio
dc.subjectecological concentration
dc.subjectelements
dc.subjectneutron activation analysis
dc.subjecttrees
dc.titleEvaluation of the spatial variability of the elements in tree barks used as biomonitors of atmospheric pollutionpt_BR
dc.typeArtigo de periódicopt_BR
dspace.entity.typePublication
ipen.autorGABRIEL ISHIMARU
ipen.autorELIANE CONCEIÇÃO DOS SANTOS
ipen.autorMITIKO SAIKI
ipen.codigoautor14795
ipen.codigoautor9777
ipen.codigoautor1178
ipen.contributor.ipenauthorGABRIEL ISHIMARU
ipen.contributor.ipenauthorELIANE CONCEIÇÃO DOS SANTOS
ipen.contributor.ipenauthorMITIKO SAIKI
ipen.date.recebimento21-08
ipen.identifier.fiSem F.I.pt_BR
ipen.identifier.ipendoc27879pt_BR
ipen.type.genreArtigo
relation.isAuthorOfPublication08c81b95-a75d-4f67-a28a-b97c30b774b4
relation.isAuthorOfPublication3c13f19d-60a9-4c52-901f-b2c6b1f263c1
relation.isAuthorOfPublication78e9df14-8ccf-4a31-a02f-4a8a4c111c14
relation.isAuthorOfPublication.latestForDiscovery08c81b95-a75d-4f67-a28a-b97c30b774b4
sigepi.autor.atividadeSAIKI, M.:1178:320:Npt_BR
sigepi.autor.atividadeSANTOS, E.C.:9777:320:Npt_BR
sigepi.autor.atividadeISHIMARU, G.:14795:320:Spt_BR
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