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Spatial environmental risk evaluation of potential toxic elements in stream sediments

2018Journal article Restricted access
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dc.contributor.authorAntunes, I.M.H.R.
dc.contributor.authorAlbuquerque, M.T.D.
dc.contributor.authorRoque, Natália
dc.date.accessioned2018-05-25T12:44:23Z
dc.date.available2019-05-31T00:30:11Z
dc.date.issued2018
dc.description“This is a post-peer-review, pre-copyedit version of an article published in Environmental Geochemistry and Health. The final authenticated version is available online at: https://doi.org/10.1007/s10653-018-0124-x "pt_PT
dc.description.abstractThe occurrence of Potential Toxic elements (PTE) in a river system is influenced by different factors such are geology, mineralogy, hydrology, vegetation, chemical reactivity, land use pattern and biological productivity. In the herein study – Monfortinho area (Central Portugal) - stream sediments were used as a tool for contamination evaluation and definition of PTE enrichment clusters. The assessment of the studied PTE distribution and the evaluation of the associated ecological risk is the target goal of the herein study and went through a two-step methodology: 1. Data collection and preparation; 2. Spatial modeling and definition of spatial clusters of high (high rings) and low (low rings) significance. For this last issue, was adopted a geostatistical approach, namely variography for attributes spatial structure computation, Ordinary Kriging for content inference aiming to predict the variables’ values at any arbitrary spatial location within the study region; and finally, clusters definition using the Local G clustering algorithm. A broad discussion about PTE provenance and possible trends in spatial dissemination lead to the conclusion that the Monfortinho area is far affected by the mining legacy. It is worth noticing the Fe; Ni; Ba; Cu; B; Zn; V; Pb and As enrichment overlapping the areas of old abandoned Ba-Zn mineralizations (southern area) and the sedimentary gold concentrations along the Erges river banks (northern region). The multivariate geostatistical approach allowed the identification and quantification of anthropogenic impacts and therefore the definition of adequate monitoring actions for the contaminated zones. Future work involves an exhaustive identification of covariates to tackle PTE fate as well as to as to clarify their provenance and enrichment.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationANTUNES, I.M.H.R. ; ALBUQUERQUE, M.T.D. ; ROQUE, N. (2018) - Environ Geochem Health. DOI https://doi.org/10.1007/s10653-018-0124-xpt_PT
dc.identifier.doihttps://doi.org/10.1007/s10653-018-0124-xpt_PT
dc.identifier.issn0269-4042
dc.identifier.urihttp://hdl.handle.net/10400.11/6092
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherSpringer Netherlandspt_PT
dc.relation.publisherversionhttps://link.springer.com/article/10.1007%2Fs10653-018-0124-xpt_PT
dc.rights.urihttp://creativecommons.org/licenses/by-nd/4.0/pt_PT
dc.subjectStream sedimentspt_PT
dc.subjectContamination factorpt_PT
dc.subjectContamination degreept_PT
dc.subjectGold minespt_PT
dc.titleSpatial environmental risk evaluation of potential toxic elements in stream sedimentspt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/5876/UID%2FGEO%2F04683%2F2013/PT
oaire.citation.endPage13pt_PT
oaire.citation.startPage1pt_PT
oaire.citation.titleEnvironmental Geochemistry and Healthpt_PT
oaire.fundingStream5876
person.familyNameantunes
person.familyNameAlbuquerque
person.familyNameMartins Roque
person.givenNameIsabel Margarida
person.givenNameMaria Teresa
person.givenNameNatália
person.identifierNatália Martins Roque
person.identifier.ciencia-idCB1E-FAD2-37D6
person.identifier.ciencia-id5A1C-8956-4C0A
person.identifier.ciencia-id451A-332D-0798
person.identifier.orcid0000-0003-3456-5926
person.identifier.orcid0000-0002-8782-6133
person.identifier.orcid0000-0001-8859-4365
person.identifier.ridM-1043-2013
person.identifier.ridB-1536-2013
person.identifier.scopus-author-id6701817085
person.identifier.scopus-author-id55507421600
person.identifier.scopus-author-id57200227653
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsembargoedAccesspt_PT
rcaap.typearticlept_PT
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relation.isAuthorOfPublicatione2c2d171-e148-4c23-9cf8-0eb6d810c15e
relation.isAuthorOfPublicationfaca1743-7a98-4404-acef-ab73a684d3c2
relation.isAuthorOfPublication.latestForDiscoverye2c2d171-e148-4c23-9cf8-0eb6d810c15e
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