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An epidemiological approach to characterise the human exposure pathways in a contaminated estuarine environment

dc.contributor.authorMachado, Ausenda
dc.contributor.authorFernandes, Ana Paula
dc.contributor.authorPaixão, Eleonora
dc.contributor.authorCaeiro, Sandra
dc.contributor.authorDias, Carlos Matias
dc.date.accessioned2017-07-03T13:23:54Z
dc.date.available2021-06-12T00:30:09Z
dc.date.issued2017-06-11
dc.description.abstractThis study's aim was to develop and implement an integrative epidemiologic cross-sectional study that allows identifying and characterising exposure pathways of populations living and working on the shores of a contaminated estuarine environment. Population residing in Carrasqueira, located on the Sado estuary with known contaminated areas was compared to another population on a noncontaminated estuary (Vila Nova de Mil Fontes - VNMF), considered a nonexposed population. Simple random samples of individuals were selected in each study population from the National Health Service Lists: 140 individuals were selected in Carrasqueira and 219 in VNMF. Participation rates were higher in the exposed group (62.5%, n=102 in Carrasqueira and 48.3%, n=100 individuals in VNMF). The same structured questionnaire was used in both populations, including questions on occupational activities, leisure activities, consumption of food (including fish and mollusks from the estuary) and use of water for human intake and agriculture. Results showed that a significantly higher proportion of Carrasqueira participants reported doing tasks in their job that promote direct (48.8% vs 1.2% in VNMF, p-value<0.001) or indirect (30% vs 11.9% in VNMF, p-value=0.004) contact with water from the estuary. Regarding seafood consumption, the exposed population of Carrasqueira had a higher frequency of consumption of cuttlefish (23.5% vs 9% in VNMF, p-value=0.007), sole (22.5% vs 4% in VNMF, p-value<0.001) and clams (18.6% vs 5.0 in VNMF, p-value=0.004). The comparative study design, with exposed and nonexposed populations living on the shores of two different estuaries allowed us to confirm the hypothesis of a higher risk of contamination from the contaminated estuarine environment. The study design and the selection of both populations were adequate for this type of epidemiologic study of potential routes of human contamination in a mixture of contaminated estuarine environment and can be used in other estuarine areas with similar environmental risk.pt_PT
dc.description.sponsorshipThe present research was financed by the National Science Foundation, Portugal, and cofinanced by the European Community FEDER A. Machado et al. / Science of the Total Environment 601–602 (2017) 1753–1761 1759 through the program COMPETE (project reference PTDC/SAU-ESA/ 100107/2008). The authors would like to acknowledge the Alentejo Regional Health Administration team, namely the professionals of the Agrupamento de Centros de Saúde Alentejo Litoral (primary care services unit from Alentejo Litoral), Eng.Inês Mateus, Joaquim Toro (M.D.) and Ana Alegria (from the Odemira Health Centre) for their collaboration and support on implementation of the field work.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationSci Total Environ. 2017 Dec 1;601-602:1753-1761. doi: 10.1016/j.scitotenv.2017.05.108. Epub 2017 Jun 11.pt_PT
dc.identifier.doi10.1016/j.scitotenv.2017.05.108pt_PT
dc.identifier.issn0048-9697
dc.identifier.urihttp://hdl.handle.net/10400.18/4732
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherElsevierpt_PT
dc.relation.publisherversionhttp://www.sciencedirect.com/science/article/pii/S0048969717312081pt_PT
dc.subjectHuman Exposurept_PT
dc.subjectContaminated Estuarypt_PT
dc.subjectExposure Pathwaypt_PT
dc.subjectCarrasqueirapt_PT
dc.subjectSado Estuarypt_PT
dc.subjectPortugalpt_PT
dc.subjectHERApt_PT
dc.subjectDeterminantes da Saúde e da Doençapt_PT
dc.titleAn epidemiological approach to characterise the human exposure pathways in a contaminated estuarine environmentpt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/5876-PPCDTI/PTDC%2FSAU-ESA%2F100107%2F2008/PT
oaire.citation.endPage1761pt_PT
oaire.citation.startPage1753pt_PT
oaire.citation.titleScience of the Total Environmentpt_PT
oaire.citation.volume601-602pt_PT
oaire.fundingStream5876-PPCDTI
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
relation.isProjectOfPublicationf42f4d14-05ea-421c-a11a-97277847498f
relation.isProjectOfPublication.latestForDiscoveryf42f4d14-05ea-421c-a11a-97277847498f

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