Influence of urban activities on polycyclic aromatic hydrocarbons in precipitation: Distribution, sources and depositional flux in a developing metropolis, Fortaleza, Brazil

Detalhes bibliográficos
Autor(a) principal: Cavalcante, Rivelino Martins
Data de Publicação: 2012
Outros Autores: Sousa, Francisco W., Nascimento, Ronaldo F., Silveira, Edilberto R., Viana, Rommel B.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da Universidade Federal do Ceará (UFC)
Texto Completo: http://www.repositorio.ufc.br/handle/riufc/70145
Resumo: We measured polycyclic aromatic hydrocarbons (PAHs) in bulk precipitation in the Fortaleza metropolitan area, Ceará, Brazil, for the first time. Because little information is available concerning PAHs in tropical climat- ic regions, we assessed their spatial distribution and possible sources and the influence of urban activities on the depositional fluxes of PAHs in bulk precipitation. The concentrations of individual and total PAHs (ΣPAHs) in bulk precipitation ranged from undetectable to 133.9 ng.L− 1 and from 202.6 to 674.8 ng.L− 1, respectively. The plume of highest concentrations was most intense in a zone with heavy automobile traffic and favorable topography for the concentration of emitted pollutants. The depositional fluxes of PAHs in bulk precipitation calculated in this study (undetectable to 0.87 μg.m− 2.month− 1) are 4 to 27 times smaller than those reported from tourist sites and industrial and urban areas in the Northern Hemisphere. Diagnostic ratio an- alyses of PAH samples showed that the major source of emissions is gasoline exhaust, with a small percentageoriginating from diesel fuel. Contributions from coal and wood combustion were also found. Major economicactivities appear to contribute to pollutant emission
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spelling Influence of urban activities on polycyclic aromatic hydrocarbons in precipitation: Distribution, sources and depositional flux in a developing metropolis, Fortaleza, BrazilUrban morphologyWet depositionOrganic compoundMorfologia urbanaDeposição úmidaCompostos orgânicosWe measured polycyclic aromatic hydrocarbons (PAHs) in bulk precipitation in the Fortaleza metropolitan area, Ceará, Brazil, for the first time. Because little information is available concerning PAHs in tropical climat- ic regions, we assessed their spatial distribution and possible sources and the influence of urban activities on the depositional fluxes of PAHs in bulk precipitation. The concentrations of individual and total PAHs (ΣPAHs) in bulk precipitation ranged from undetectable to 133.9 ng.L− 1 and from 202.6 to 674.8 ng.L− 1, respectively. The plume of highest concentrations was most intense in a zone with heavy automobile traffic and favorable topography for the concentration of emitted pollutants. The depositional fluxes of PAHs in bulk precipitation calculated in this study (undetectable to 0.87 μg.m− 2.month− 1) are 4 to 27 times smaller than those reported from tourist sites and industrial and urban areas in the Northern Hemisphere. Diagnostic ratio an- alyses of PAH samples showed that the major source of emissions is gasoline exhaust, with a small percentageoriginating from diesel fuel. Contributions from coal and wood combustion were also found. Major economicactivities appear to contribute to pollutant emissionScience of the Total Environment2023-01-18T14:02:42Z2023-01-18T14:02:42Z2012info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfCAVALCANTE, Rivelino M.; SOUSA, Francisco W.; NASCIMENTO, Ronaldo F.; SILVEIRA, Ediberto R.; VIANA, Rommel B. Influence of urban activities on polycyclic aromatic hydrocarbons in precipitation: Distribution, sources and depositional flux in a developing metropolis, Fortaleza, Brazil. Science of the Total Environment, Netherlands, n. 414, p. 2115-2120, 2012.1879-1026http://www.repositorio.ufc.br/handle/riufc/70145Cavalcante, Rivelino MartinsSousa, Francisco W.Nascimento, Ronaldo F.Silveira, Edilberto R.Viana, Rommel B.engreponame:Repositório Institucional da Universidade Federal do Ceará (UFC)instname:Universidade Federal do Ceará (UFC)instacron:UFCinfo:eu-repo/semantics/openAccess2023-01-20T12:42:41Zoai:repositorio.ufc.br:riufc/70145Repositório InstitucionalPUBhttp://www.repositorio.ufc.br/ri-oai/requestbu@ufc.br || repositorio@ufc.bropendoar:2024-09-11T19:03:37.233910Repositório Institucional da Universidade Federal do Ceará (UFC) - Universidade Federal do Ceará (UFC)false
dc.title.none.fl_str_mv Influence of urban activities on polycyclic aromatic hydrocarbons in precipitation: Distribution, sources and depositional flux in a developing metropolis, Fortaleza, Brazil
title Influence of urban activities on polycyclic aromatic hydrocarbons in precipitation: Distribution, sources and depositional flux in a developing metropolis, Fortaleza, Brazil
spellingShingle Influence of urban activities on polycyclic aromatic hydrocarbons in precipitation: Distribution, sources and depositional flux in a developing metropolis, Fortaleza, Brazil
Cavalcante, Rivelino Martins
Urban morphology
Wet deposition
Organic compound
Morfologia urbana
Deposição úmida
Compostos orgânicos
title_short Influence of urban activities on polycyclic aromatic hydrocarbons in precipitation: Distribution, sources and depositional flux in a developing metropolis, Fortaleza, Brazil
title_full Influence of urban activities on polycyclic aromatic hydrocarbons in precipitation: Distribution, sources and depositional flux in a developing metropolis, Fortaleza, Brazil
title_fullStr Influence of urban activities on polycyclic aromatic hydrocarbons in precipitation: Distribution, sources and depositional flux in a developing metropolis, Fortaleza, Brazil
title_full_unstemmed Influence of urban activities on polycyclic aromatic hydrocarbons in precipitation: Distribution, sources and depositional flux in a developing metropolis, Fortaleza, Brazil
title_sort Influence of urban activities on polycyclic aromatic hydrocarbons in precipitation: Distribution, sources and depositional flux in a developing metropolis, Fortaleza, Brazil
author Cavalcante, Rivelino Martins
author_facet Cavalcante, Rivelino Martins
Sousa, Francisco W.
Nascimento, Ronaldo F.
Silveira, Edilberto R.
Viana, Rommel B.
author_role author
author2 Sousa, Francisco W.
Nascimento, Ronaldo F.
Silveira, Edilberto R.
Viana, Rommel B.
author2_role author
author
author
author
dc.contributor.author.fl_str_mv Cavalcante, Rivelino Martins
Sousa, Francisco W.
Nascimento, Ronaldo F.
Silveira, Edilberto R.
Viana, Rommel B.
dc.subject.por.fl_str_mv Urban morphology
Wet deposition
Organic compound
Morfologia urbana
Deposição úmida
Compostos orgânicos
topic Urban morphology
Wet deposition
Organic compound
Morfologia urbana
Deposição úmida
Compostos orgânicos
description We measured polycyclic aromatic hydrocarbons (PAHs) in bulk precipitation in the Fortaleza metropolitan area, Ceará, Brazil, for the first time. Because little information is available concerning PAHs in tropical climat- ic regions, we assessed their spatial distribution and possible sources and the influence of urban activities on the depositional fluxes of PAHs in bulk precipitation. The concentrations of individual and total PAHs (ΣPAHs) in bulk precipitation ranged from undetectable to 133.9 ng.L− 1 and from 202.6 to 674.8 ng.L− 1, respectively. The plume of highest concentrations was most intense in a zone with heavy automobile traffic and favorable topography for the concentration of emitted pollutants. The depositional fluxes of PAHs in bulk precipitation calculated in this study (undetectable to 0.87 μg.m− 2.month− 1) are 4 to 27 times smaller than those reported from tourist sites and industrial and urban areas in the Northern Hemisphere. Diagnostic ratio an- alyses of PAH samples showed that the major source of emissions is gasoline exhaust, with a small percentageoriginating from diesel fuel. Contributions from coal and wood combustion were also found. Major economicactivities appear to contribute to pollutant emission
publishDate 2012
dc.date.none.fl_str_mv 2012
2023-01-18T14:02:42Z
2023-01-18T14:02:42Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv CAVALCANTE, Rivelino M.; SOUSA, Francisco W.; NASCIMENTO, Ronaldo F.; SILVEIRA, Ediberto R.; VIANA, Rommel B. Influence of urban activities on polycyclic aromatic hydrocarbons in precipitation: Distribution, sources and depositional flux in a developing metropolis, Fortaleza, Brazil. Science of the Total Environment, Netherlands, n. 414, p. 2115-2120, 2012.
1879-1026
http://www.repositorio.ufc.br/handle/riufc/70145
identifier_str_mv CAVALCANTE, Rivelino M.; SOUSA, Francisco W.; NASCIMENTO, Ronaldo F.; SILVEIRA, Ediberto R.; VIANA, Rommel B. Influence of urban activities on polycyclic aromatic hydrocarbons in precipitation: Distribution, sources and depositional flux in a developing metropolis, Fortaleza, Brazil. Science of the Total Environment, Netherlands, n. 414, p. 2115-2120, 2012.
1879-1026
url http://www.repositorio.ufc.br/handle/riufc/70145
dc.language.iso.fl_str_mv eng
language eng
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Science of the Total Environment
publisher.none.fl_str_mv Science of the Total Environment
dc.source.none.fl_str_mv reponame:Repositório Institucional da Universidade Federal do Ceará (UFC)
instname:Universidade Federal do Ceará (UFC)
instacron:UFC
instname_str Universidade Federal do Ceará (UFC)
instacron_str UFC
institution UFC
reponame_str Repositório Institucional da Universidade Federal do Ceará (UFC)
collection Repositório Institucional da Universidade Federal do Ceará (UFC)
repository.name.fl_str_mv Repositório Institucional da Universidade Federal do Ceará (UFC) - Universidade Federal do Ceará (UFC)
repository.mail.fl_str_mv bu@ufc.br || repositorio@ufc.br
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