Análisis de plomo en sedimento y raíz de Rhizophora mangle en un tramo del Estero Salado del cantón Guayaquil, provincia Del Guayas
Fecha
2022-04
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Facultad de Ciencias Naturales. Universidad de Guayaquil
Resumen
El Estero Salado es un recurso natural emblemático de Guayaquil pero su cercanía a la ciudad ha perjudicado sus características naturales llevando a este ecosistema a poseer elevados niveles de contaminación. En la presente investigación se planteó determinar las concentraciones de plomo en el sedimento y las raíces de mangle en el tramo cercano a la Vía Perimetral; para lo cual se recolectaron 9 muestras de sedimento y 9 muestras de raíces de Rhizophora mangle. Los resultados de sedimento demuestran niveles elevados de plomo en los 3 puntos que van desde 146,09 mg/kg
hasta 2243,34 mg/kg valores que sobrepasan el límite máximo permisible según lo indicado en la normativa canadiense; mientras que para las raíces se obtuvieron valores que van desde 0,39 mg/kg hasta 22,96 mg/kg en los 3 puntos. Finalmente se acepta la hipótesis planteada debido a que existen concentraciones de plomo en sedimentos y raíces de Rhizophora mangle.
The Estero Salado is an emblematic natural resource of Guayaquil, but its proximity to the city has harmed its natural characteristics, leading this ecosystem to have high levels of pollution. In the present investigation, it was proposed to determine the concentrations of lead in the sediment and the mangrove roots in the section close to the Perimeter Road; for which 9 sediment samples and 9 root samples of Rhizophora mangle were collected. The sediment results show elevated levels of lead in the 3 points ranging from 146.09 mg/kg to 2243.34 mg/kg, values that exceed the maximum permissible limit as indicated in Canadian regulations; while for the roots, values ranging from 0.39 mg/kg to 22.96 mg/kg were obtained at the 3 points. Finally, the proposed hypothesis is accepted because there are concentrations of lead in sediments and roots of Rhizophora mangle.
The Estero Salado is an emblematic natural resource of Guayaquil, but its proximity to the city has harmed its natural characteristics, leading this ecosystem to have high levels of pollution. In the present investigation, it was proposed to determine the concentrations of lead in the sediment and the mangrove roots in the section close to the Perimeter Road; for which 9 sediment samples and 9 root samples of Rhizophora mangle were collected. The sediment results show elevated levels of lead in the 3 points ranging from 146.09 mg/kg to 2243.34 mg/kg, values that exceed the maximum permissible limit as indicated in Canadian regulations; while for the roots, values ranging from 0.39 mg/kg to 22.96 mg/kg were obtained at the 3 points. Finally, the proposed hypothesis is accepted because there are concentrations of lead in sediments and roots of Rhizophora mangle.
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CONTAMINACIÓN, ESTERO SALADO, PLOMO, SEDIMENTOS, MANGLAR