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dc.contributor.author
Tatone, Leandro Martín
dc.contributor.author
Skorupka, Carlos Norberto
dc.contributor.author
Colombo, Juan Carlos
dc.date.available
2021-07-16T15:14:05Z
dc.date.issued
2020-04
dc.identifier.citation
Tatone, Leandro Martín; Skorupka, Carlos Norberto; Colombo, Juan Carlos; Comprehensive evaluation of metal pollution and ecological risk in settling material from differently impacted sites in the Río de la Plata basin; Taylor & Francis Ltd; Human and Ecological Risk Assessment; 27; 3; 4-2020; 638-650
dc.identifier.issn
1080-7039
dc.identifier.uri
http://hdl.handle.net/11336/136329
dc.description.abstract
Metal speciation, geoaccumulation indices and sediment quality guidelines were used to evaluate the ecological risk of metals in settling material from the polluted metropolitan Buenos Aires coast in the R ıo de la Plata (RLP) compared to a more pristine northern site in the Uruguay River (UR). The content of organic carbon and trace metals (Zn, Cr, Cu, Pb and Ni) in RLP was 2-6 times higher reflecting the anthropogenic impact in the metropolitan coastal area. In contrast, Fe and Mn were 4-5 times lower, reflecting basically redox-driven evasion from polluted anoxic settling material. In addition, at RLP, trace metals were mainly found in the potentially bioavailable fractions (51-84%) compared to the prevailing, immobile residual fractionation at UR (63- 86%), while Fe and Mn displayed a similar fractionation at both sites (Fe: 86-90% in the residual fraction; Mn: 71-82% in non-residual fractions). The geoaccumulation index relative to local background values (Igeo), the effects-based sediment quality guidelines (SQG) and the risk assessment code (RAC) from speciation data revealed some discrepancies in the risk evaluation. Although concentrations of Zn, Cr, Cu and Pb in RLP were enriched compared to background concentrations (1 Igeo 2) and exceed SQGs for the protection of aquatic life, according to RAC, only Zn, Mn and, to a lesser extent, Ni presented probable risks for the aquatic environment.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Taylor & Francis Ltd
dc.rights
info:eu-repo/semantics/restrictedAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
METALS
dc.subject
RISK ASSESSMENT
dc.subject
RÍO DE LA PLATA BASIN
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SEQUENTIAL EXTRACTION
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SETTLING MATERIAL
dc.subject.classification
Ciencias Medioambientales
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Ciencias de la Tierra y relacionadas con el Medio Ambiente
dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
dc.title
Comprehensive evaluation of metal pollution and ecological risk in settling material from differently impacted sites in the Río de la Plata basin
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2021-07-15T12:26:08Z
dc.identifier.eissn
1549-7860
dc.journal.volume
27
dc.journal.number
3
dc.journal.pagination
638-650
dc.journal.pais
Estados Unidos
dc.description.fil
Fil: Tatone, Leandro Martín. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. Laboratorio de Química Ambiental y Biogeoquímica; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; Argentina
dc.description.fil
Fil: Skorupka, Carlos Norberto. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. Laboratorio de Química Ambiental y Biogeoquímica; Argentina
dc.description.fil
Fil: Colombo, Juan Carlos. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. Laboratorio de Química Ambiental y Biogeoquímica; Argentina. Provincia de Buenos Aires. Gobernación. Comisión de Investigaciones Científicas; Argentina
dc.journal.title
Human and Ecological Risk Assessment
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1080/10807039.2020.1749826
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://www.tandfonline.com/doi/abs/10.1080/10807039.2020.1749826?journalCode=bher20
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