Please use this identifier to cite or link to this item: https://hdl.handle.net/10316/104658
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dc.contributor.authorReis, Anabela R.-
dc.contributor.authorRoboredo, Marta-
dc.contributor.authorPinto, João P. R. M.-
dc.contributor.authorVieira, Bernardete-
dc.contributor.authorVarandas, Simone G. P.-
dc.contributor.authorFernandes, Luis F. S.-
dc.contributor.authorPacheco, Fernando A. L.-
dc.date.accessioned2023-01-23T12:34:13Z-
dc.date.available2023-01-23T12:34:13Z-
dc.date.issued2021-05-24-
dc.identifier.issn1660-4601pt
dc.identifier.urihttps://hdl.handle.net/10316/104658-
dc.description.abstractA geochemical investigation was carried out on the bottom sediments of a riverine reservoir, located in a mountainous rural region (NE Portugal), with the aim of evaluating the contents of As, metals and P and their potential availability. The elements contents were detected in the following ranges (µg g-1): As (18-64); Cr (32-128); Cu (39-93); Ni (18-80); Pb (49-160); Zn (207-334); P (1705-2681). The reducible fraction is the most significant in the retention of the elements. Based on their potential relative mobility, the detected metals could be classed as follows: Zn > As, Pb > Cu > Cr, Ni. The results on geochemical partitioning were revealed to be important when the Sediment Quality Guidelines (SQGs) were considered. Arsenic, Cr, Ni, Pb and Zn showed total contents exceeding the values of Probable Effect Level (PEL), but only As occurred in the most potentially available form; Cr and Ni can be considered relatively unavailable, since these are mainly associated with the residual phase. Locally, oxygen depletion could release P into the water column due to the higher concentrations in Fe-P and CDB-P fractions. The potential availability of As, metals and P in sediments indicates that the quality of sediments accumulated in small reservoirs should be considered in management policies.pt
dc.language.isoengpt
dc.publisherMDPI AGpt
dc.relationUIDB/00073/2020pt
dc.relationUIDP/00073/2020pt
dc.relationUIDB/04033/2020pt
dc.relationUIDB/QUI/00616/2020pt
dc.relationUIDP/00616/2020pt
dc.rightsopenAccesspt
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt
dc.subjectsedimentspt
dc.subjectriverine reservoirpt
dc.subjectmetalspt
dc.subjectphosphoruspt
dc.subjectchemical fractionationpt
dc.subjectpotential availabilitypt
dc.subject.meshEnvironmental Monitoringpt
dc.subject.meshGeologic Sedimentspt
dc.subject.meshPortugalpt
dc.subject.meshMetals, Heavypt
dc.subject.meshWater Pollutants, Chemicalpt
dc.titleDistribution and Potential Availability of As, Metals and P in Sediments from a Riverine Reservoir in a Rural Mountainous Catchment (NE Portugal)pt
dc.typearticle-
degois.publication.firstPage5616pt
degois.publication.issue11pt
degois.publication.titleInternational Journal of Environmental Research and Public Healthpt
dc.peerreviewedyespt
dc.identifier.doi10.3390/ijerph18115616pt
degois.publication.volume18pt
dc.date.embargo2021-05-24*
uc.date.periodoEmbargo0pt
item.languageiso639-1en-
item.openairecristypehttp://purl.org/coar/resource_type/c_18cf-
item.openairetypearticle-
item.fulltextCom Texto completo-
item.grantfulltextopen-
item.cerifentitytypePublications-
crisitem.author.researchunitCEMMPRE - Centre for Mechanical Engineering, Materials and Processes-
crisitem.author.orcid0000-0002-9928-7958-
Appears in Collections:I&D CGUC - Artigos em Revistas Internacionais
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