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Please use this identifier to cite or link to this item:
https://hdl.handle.net/20.500.11839/8029Full metadata record
| DC Field | Value | Language |
|---|---|---|
| dc.contributor.author | Doria Argumedo, Carlos | - |
| dc.date.accessioned | 2020-09-07T16:10:43Z | - |
| dc.date.available | 2020-09-07T16:10:43Z | - |
| dc.date.issued | 2018-10-08 | - |
| dc.identifier.citation | APA 7th - Doria Argumedo, C. (2018). Niveles de metales pesados en los sedimentos superficiales de las zonas de playas turísticas de La Guajira, Norte de Colombia. Revista De Investigación, 11(2), 49-66. https://doi.org/10.29097/2011-639X.226 | - |
| dc.identifier.uri | https://doi.org/10.29097/2011-639X.226 | - |
| dc.description | Heavy metals (Cr,Cd,V,Zn,Pb,Ni,Hg,Cu) were determined in surface sediments in six sites of the tourist beaches of la Guajira to establish baseline and contamination levels, The metals were determined by means of the atomic absorption technique (CVAAS, GFAAS, FLAAS) using an ICE 3000 Thermo Electron Corporation spectrophotometer with air-acetylene flame. The concentrations of heavy metals in the sediments of the study area varied: Cr, 0.086- 1,058 mg/kg; Cd, 0.00098-0.0002.84 mg/kg; V,0.046-0,829mg/kg; Zn,0.250-0,630 mg/kg; Pb,0.055-0.124 µg/kg; Ni, 0.080-1.220 mg/kg; Hg, 0.0015-0.0027 mg/kg, and Cu,0.030-0.10 mg/kg. Statistically significant correlations between metals suggest sources of similar origins. The estimation of the level of contamination by means of the Geoaccumulation Index indicates that there is no marine pollution. The concentrations of Cr, Zn and Ni They are below a level of light pollution in the sediments, which can be tolerated by most benthic species, although the anthropogenic contribution related to the dumping of wastewater, mining and the discharge of wastewater can not be ruled out. | spa |
| dc.description.abstract | Se determinó la concentración de ocho metales pesados (cromo, cadmio, vanadio, cinc, plomo, níquel, mercurio y cobre) en sedimentos superficiales de seis sitios de las playas turísticas de La Guajira para conocer los niveles de línea base y contaminación. La concentración se estableció mediante la técnica de espectroscopia de absorción atómica (CVAAS, GFAAS, FLAAS), utilizando un espectrofotómetro ICE 3000 Thermo Electron Corporation con llama aire-acetileno. Las concentraciones de los metales pesados en los sedimentos del área de estudio oscilaron entre los siguientes valores: cromo, 0.086-1.058 mg/kg; cadmio, 0.0098-0.0028 mg/kg; vanadio, 0.046-0.829 mg/kg; cinc, 0.250-0.630 mg/kg; plomo, 0.055-0.124 mg/kg; níquel, 0.080-1.220 mg/kg; mercurio, 0.00015-0.00027 mg/kg, y cobre, 0.030-0.1 mg/kg. Las correlaciones significativas entre los metales sugieren la existencia de fuentes de orígenes similares. La estimación del nivel de contaminación con el índice de geoacumulación indica que no existe contaminación. Las concentraciones de cromo, cinc y níquel se encuentran por debajo de un nivel de contaminación ligera en los sedimentos que puede ser tolerado por la mayoría de las especies bentónicas, aunque no se puede descartar una contribución antropogénica relacionada con el vertimiento de aguas servidas, la minería y la descarga de los ríos | spa |
| dc.language.iso | es | spa |
| dc.publisher | Fundación Universidad de América | spa |
| dc.rights | Atribución – No comercial – Sin Derivar | spa |
| dc.subject | La Guajira | spa |
| dc.subject | Metales pesados | spa |
| dc.subject | Playas turísticas | spa |
| dc.subject | Sedimentos superficiales | spa |
| dc.subject | La Guajira | spa |
| dc.subject | Heavy metals | spa |
| dc.subject | Tourist beaches | spa |
| dc.subject | Sediment surface | spa |
| dc.title | Niveles de metales pesados en los sedimentos superficiales de las zonas de playas turísticas de La Guajira, Norte de Colombia | spa |
| dc.title.alternative | Levels of heavy metals in surface sedimens of the areas of tourist of la Guajira, Northern Colombia | spa |
| dc.type | Article | spa |
| Appears in Collections: | B. Año 2018 Vol.11 No.2 | |
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