EXTRACTION OF HEAVY METALS IN SOILS AND SEDIMENTS OF LA VILLA RIVER BASIN IN PANAMA

With the objective of determining, through sequential extraction procedures, the concentration of heavy metals in its different phases in soils and sediments under intensive agricultural activity within the basin of the La Villa river. 41 Samples of soil and sediments were taken in the rainy season of 2016 (April-December) and the dry season of 2017 (January-March). The total content of Cu, Zn, Cr, Cd, Ni, Pb and As was measured and speciation was performed according to the Keller and Védy methodology. Bar graphs were prepared, and the averages of each fraction were compared by means of the Student´s t test. In the soil Cu levels were found and in the sediments Cu, Cr and As above the levels allowed by the European Union standard. Cd, Pb and As showed high percentages in the fractions soluble in water and interchangeable, being these bioavailable and therefore offer greater environmental risk. Cd, Pb and As through Student's t test showed statistically significant probabilities that their levels are higher than the average in the future. The presence of these heavy metals is attributed to anthropogenic action in soils and sediments of the La Villa river basin.

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Main Authors: Villarreal-Núñez, José Ezequiel, Santo-Pineda, Adolfo, Villalaz-Pérez, Jhon Alexander, Ballesteros, Neldis
Format: Digital revista
Language:spa
Published: Instituto de Innovación Agropecuaria de Panamá 2020
Online Access:http://www.revistacienciaagropecuaria.ac.pa/index.php/ciencia-agropecuaria/article/view/126
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spelling oai:ojs.revistacienciaagropecuaria.ac.pa:article-1262023-01-24T19:59:35Z EXTRACTION OF HEAVY METALS IN SOILS AND SEDIMENTS OF LA VILLA RIVER BASIN IN PANAMA EXTRACCIÓN SECUENCIAL DE METALES PESADOS EN SUELOS Y SEDIMENTOS DE LA CUENCA RÍO LA VILLA-PANAMÁ Villarreal-Núñez, José Ezequiel Santo-Pineda, Adolfo Villalaz-Pérez, Jhon Alexander Ballesteros, Neldis With the objective of determining, through sequential extraction procedures, the concentration of heavy metals in its different phases in soils and sediments under intensive agricultural activity within the basin of the La Villa river. 41 Samples of soil and sediments were taken in the rainy season of 2016 (April-December) and the dry season of 2017 (January-March). The total content of Cu, Zn, Cr, Cd, Ni, Pb and As was measured and speciation was performed according to the Keller and Védy methodology. Bar graphs were prepared, and the averages of each fraction were compared by means of the Student´s t test. In the soil Cu levels were found and in the sediments Cu, Cr and As above the levels allowed by the European Union standard. Cd, Pb and As showed high percentages in the fractions soluble in water and interchangeable, being these bioavailable and therefore offer greater environmental risk. Cd, Pb and As through Student's t test showed statistically significant probabilities that their levels are higher than the average in the future. The presence of these heavy metals is attributed to anthropogenic action in soils and sediments of the La Villa river basin. Con el objetivo de determinar, a través de procedimientos de extracción secuencial, la concentración de metales pesados en sus diferentes fases en suelos y sedimentos bajo actividad agropecuaria intensiva dentro de la cuenca del río La Villa. Se tomaron 41 muestras de suelo y sedimentos en la época lluviosa del año 2016 (abril-diciembre) y la época seca de 2017 (enero-marzo). Se midió el contenido total de Cu, Zn, Cr, Cd, Ni, Pb y As y se realizó su especiación según la metodología de Keller y Védy. Se elaboraron gráficas de barras y se compararon los promedios de cada fracción por medio de la prueba de t de Student. En el suelo se encontró niveles de Cu y en los sedimentos Cu, Cr y As por encima de los niveles permitidos por la norma de la Unión Europea. Cd, Pb y As mostraron elevados porcentajes en las fracciones soluble en agua e intercambiable, siendo estas biodisponibles y por tanto ofrecen mayor riesgo ambiental. Cd, Pb y As por medio de la prueba t de Student mostraron probabilidades estadísticamente significativas de que sus niveles sean mayores que la media en el futuro. Se atribuye la presencia de estos metales pesados en suelos y sedimentos de la cuenca del río La Villa a la acción antropogénica. Instituto de Innovación Agropecuaria de Panamá 2020-07-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Artículo revisado por pares application/pdf http://www.revistacienciaagropecuaria.ac.pa/index.php/ciencia-agropecuaria/article/view/126 Ciencia Agropecuaria; Núm. 30 (2020): CIENCIA AGROPECUARIA; 45-65 2414-3278 0258-6452 spa http://www.revistacienciaagropecuaria.ac.pa/index.php/ciencia-agropecuaria/article/view/126/92
institution IDIAP
collection OJS
country Panamá
countrycode PA
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databasecode rev-cienciaagropecuaria
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region America Central
libraryname Centro de Información Documental Agropecuaria
language spa
format Digital
author Villarreal-Núñez, José Ezequiel
Santo-Pineda, Adolfo
Villalaz-Pérez, Jhon Alexander
Ballesteros, Neldis
spellingShingle Villarreal-Núñez, José Ezequiel
Santo-Pineda, Adolfo
Villalaz-Pérez, Jhon Alexander
Ballesteros, Neldis
EXTRACTION OF HEAVY METALS IN SOILS AND SEDIMENTS OF LA VILLA RIVER BASIN IN PANAMA
author_facet Villarreal-Núñez, José Ezequiel
Santo-Pineda, Adolfo
Villalaz-Pérez, Jhon Alexander
Ballesteros, Neldis
author_sort Villarreal-Núñez, José Ezequiel
title EXTRACTION OF HEAVY METALS IN SOILS AND SEDIMENTS OF LA VILLA RIVER BASIN IN PANAMA
title_short EXTRACTION OF HEAVY METALS IN SOILS AND SEDIMENTS OF LA VILLA RIVER BASIN IN PANAMA
title_full EXTRACTION OF HEAVY METALS IN SOILS AND SEDIMENTS OF LA VILLA RIVER BASIN IN PANAMA
title_fullStr EXTRACTION OF HEAVY METALS IN SOILS AND SEDIMENTS OF LA VILLA RIVER BASIN IN PANAMA
title_full_unstemmed EXTRACTION OF HEAVY METALS IN SOILS AND SEDIMENTS OF LA VILLA RIVER BASIN IN PANAMA
title_sort extraction of heavy metals in soils and sediments of la villa river basin in panama
description With the objective of determining, through sequential extraction procedures, the concentration of heavy metals in its different phases in soils and sediments under intensive agricultural activity within the basin of the La Villa river. 41 Samples of soil and sediments were taken in the rainy season of 2016 (April-December) and the dry season of 2017 (January-March). The total content of Cu, Zn, Cr, Cd, Ni, Pb and As was measured and speciation was performed according to the Keller and Védy methodology. Bar graphs were prepared, and the averages of each fraction were compared by means of the Student´s t test. In the soil Cu levels were found and in the sediments Cu, Cr and As above the levels allowed by the European Union standard. Cd, Pb and As showed high percentages in the fractions soluble in water and interchangeable, being these bioavailable and therefore offer greater environmental risk. Cd, Pb and As through Student's t test showed statistically significant probabilities that their levels are higher than the average in the future. The presence of these heavy metals is attributed to anthropogenic action in soils and sediments of the La Villa river basin.
publisher Instituto de Innovación Agropecuaria de Panamá
publishDate 2020
url http://www.revistacienciaagropecuaria.ac.pa/index.php/ciencia-agropecuaria/article/view/126
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