Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/218192
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dc.contributor.authorMarrugo-Negrete, Josées_ES
dc.contributor.authorPinedo-Hernández, Josées_ES
dc.contributor.authorMarrugo-Madrid, Sidayes_ES
dc.contributor.authorDíez, Sergies_ES
dc.date.accessioned2020-08-18T16:40:56Z-
dc.date.available2020-08-18T16:40:56Z-
dc.date.issued2020-08-17-
dc.identifier.citationEnvironmental Science and Pollution Research (2020)es_ES
dc.identifier.urihttp://hdl.handle.net/10261/218192-
dc.description.abstractTrace element pollution in rivers by anthropogenic activities is an increasing problem worldwide. In this study, the contamination and ecological risk by several trace elements were evaluated along a 100-km stretch of the San Jorge River in Colombia, impacted by different mining activities. The increase of average concentration levels and range of trace elements in sediments (in μg/g) was as follows: Cu 6656 (454–69,702) > Cd 1159 (0.061–16,227) > Zn 1064 (102–13,483) > Ni 105 (31–686) > Pb 7.2 (5.1–11.7) > As 1.8 (1.0–3.2) > Hg 0.31 (0.12–1.37). Results showed that surface sediments could be classified as very high ecological risk index (RI > 600), associated with high contamination of Hg, Cd, and Cu, in stations close mining activities. Values for pollution load index indicate an environmental deterioration (PLI > 1), and sediment quality guidelines (SQGs) suggested that Cu, Ni, Zn, and Hg caused adverse biological effects. We further used pollution indices such as contamination factor (CF), enrichment factor (EF), and geoaccumulation index (Igeo) to assess the extent of contamination. According to these indices, discharges of hazardous chemicals over many years have resulted in a high degree of pollution for Cu, Pb, and Cd, with critical values in stations receiving wastes from mining activities. Multivariate statistical analysis suggested that Hg, Cd, Cu, and Zn derived from gold and coal mining, Ni and As were related from the mining of ferronickel and coal, respectively, whereas the high Pb load was attributed to diffuse source of pollution. In sum, our study provided the first detailed database on metal concentration and ecological risks to organisms in sediments of the San Jorge River Basin, and the current results also suggested future research for public health action.es_ES
dc.description.sponsorshipThe authors received financial support from the University of Córdoba, Montería, Colombia through project FCB-01-17.es_ES
dc.language.isoenges_ES
dc.publisherSpringer Naturees_ES
dc.relation.isversionofPostprintes_ES
dc.rightsopenAccessen_EN
dc.subjectRiver wateres_ES
dc.subjectPollutiones_ES
dc.subjectTrace element pollution in riverses_ES
dc.titleAssessment of trace element pollution and ecological risks in a river basin impacted by mining in Colombiaes_ES
dc.typeartículoes_ES
dc.identifier.doi10.1007/s11356-020-10356-4-
dc.description.peerreviewedPeer reviewedes_ES
dc.relation.publisherversionhttps://doi.org/10.1007/s11356-020-10356-4es_ES
dc.embargo.terms2012-08-17es_ES
dc.relation.csices_ES
oprm.item.hasRevisionno ko 0 false*
dc.contributor.orcidDíez, Sergi [0000-0002-9870-2179]es_ES
dc.type.coarhttp://purl.org/coar/resource_type/c_6501es_ES
item.openairecristypehttp://purl.org/coar/resource_type/c_18cf-
item.grantfulltextopen-
item.openairetypeartículo-
item.fulltextWith Fulltext-
item.languageiso639-1en-
item.cerifentitytypePublications-
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