Logo do repositório
 
Publicação

Using biochemical and isotope geochemistry to understand the environmental and public health implications of lead pollution in the lower Guadiana River, Iberia: A freshwater bivalve study

2008Artigo científico Acesso restrito
Ver registo simples
dc.contributor.authorCompany, Rui
dc.contributor.authorSerafim, Angela
dc.contributor.authorLopes, Belisandra
dc.contributor.authorCravo, A.
dc.contributor.authorShepherd, T. J.
dc.contributor.authorPearson, G.
dc.contributor.authorBebianno, Maria João
dc.contributor.authorCravo, Alexandra
dc.date.accessioned2020-05-05T08:35:34Z
dc.date.available2020-05-05T08:35:34Z
dc.date.issued2008
dc.description.abstractLead is a natural component of aquatic ecosystems with no known biological role and is highly toxic. Its toxicity stems from its ability to mimic biologically important metals and to produce membrane damage through lipid peroxidation (LPO). Most lead poisoning symptoms are thought to occur by interfering with an essential enzyme, delta-aminolevulinic acid dehydratase (ALAD), the activity of which is markedly inhibited by lead. The purpose of this work was to study the levels and effects of lead pollution (responses of ALAD and oxidative stress biomarker LPO) in the freshwater bivalve Corbicula fluminea along the lower Guadiana River (Portugal and Spain); a major river system impacted by historic mining pollution and more recent anthropogenic inputs. The results show that the enzymatic activity of ALAD is negatively correlated with the total Pb concentration of the whole tissue suggesting that ALAD has considerable potential as a biomarker of lead exposure in C. fluminea. To identify the sources of lead to which bivalves have been exposed, high precision (206)Pb/(204)Pb, (207)Pb/(204)Pb, (208)Pb/(204)/Pb ratios for C. fluminea confirm that historical mining activities in the Iberian Pyrite Belt are the dominant source of lead pollution in the lower Guadiana River. The isotope patterns however exhibit marked seasonal and geographic variation in response to rainfall and river water management. Locally, other anthropogenic sources of lead have been detected in C. fluminea close to population centres, thus adding to its versatility as a freshwater bio-indicator. Overall, the study highlights the value of natural ecosystems as monitors of water quality and their importance for public health assessment and surveillance.pt_PT
dc.description.sponsorshipUTPIA/SP5.P9/02-INTERREG IIIApt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.doi10.1016/j.scitotenv.2008.07.016pt_PT
dc.identifier.issn0048-9697
dc.identifier.urihttp://hdl.handle.net/10400.1/13830
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherElsevierpt_PT
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectAnimalspt_PT
dc.subjectBiological assaypt_PT
dc.subjectBiomarkerspt_PT
dc.subjectCorbiculapt_PT
dc.subjectEcosystempt_PT
dc.subjectEnvironmental monitoringpt_PT
dc.subjectIsotopespt_PT
dc.subjectLeadpt_PT
dc.subjectPorphobilinogen synthasept_PT
dc.subjectPortugalpt_PT
dc.subjectRiverspt_PT
dc.subjectWater pollutantspt_PT
dc.subjectChemicalpt_PT
dc.titleUsing biochemical and isotope geochemistry to understand the environmental and public health implications of lead pollution in the lower Guadiana River, Iberia: A freshwater bivalve studypt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage119pt_PT
oaire.citation.issue1-3pt_PT
oaire.citation.startPage109pt_PT
oaire.citation.titleScience of the Total Environmentpt_PT
oaire.citation.volume405pt_PT
person.familyNameCravador
person.familyNamePereira Serafim
person.familyNameLopes
person.familyNameBebianno
person.familyNameCravo
person.givenNameAlfredo
person.givenNameMaria Angela
person.givenNameBelisandra
person.givenNameMaria
person.givenNameAlexandra
person.identifier.ciencia-id9C18-090A-5E3D
person.identifier.ciencia-id6A15-9C84-CA28
person.identifier.ciencia-id2B11-46AC-B94B
person.identifier.ciencia-id7419-EE20-8039
person.identifier.orcid0000-0002-9831-9815
person.identifier.orcid0000-0002-1165-0645
person.identifier.orcid0000-0003-3565-4795
person.identifier.orcid0000-0003-1492-8566
person.identifier.orcid0000-0002-2569-3929
person.identifier.ridK-7247-2012
person.identifier.scopus-author-id6602537257
person.identifier.scopus-author-id23985890600
person.identifier.scopus-author-id7004152715
rcaap.rightsrestrictedAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublication0e42fc03-7052-438d-952b-b3caa5bdc36a
relation.isAuthorOfPublication24b957b6-c584-447f-ad53-d6b6aa57d104
relation.isAuthorOfPublication8c84a9e6-6b7f-4b50-93a2-152c85901722
relation.isAuthorOfPublication2e00a26d-1dd3-4c22-a6bf-ac7943ae0d32
relation.isAuthorOfPublicationf19c20c8-9654-43db-841b-2c6f14979df5
relation.isAuthorOfPublication.latestForDiscovery0e42fc03-7052-438d-952b-b3caa5bdc36a

Ficheiros

Principais
A mostrar 1 - 1 de 1
Miniatura indisponível
Nome:
Company et al STOTEN2008UTPIA.pdf
Tamanho:
823.22 KB
Formato:
Adobe Portable Document Format
Ver/Abrir

Coleções

CIM2-Artigos (em revistas ou actas indexadas)