Arsenic-realising hydrogeochemical processes in the Claromecó creek basin, Buenos Aires Province, Argentina
A hydrogeochemical study was performed in the Claromecó Creek basin, Buenos Aires province. This region is featured by groundwaters with arsenic (As) concentrantions that exceed the allowed provincial limit of 50 ppb. Based on the chemical analysis of samples distributed all along the basin and extr...
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| Autores principales: | , , , |
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| Formato: | Artículo revista |
| Lenguaje: | Español |
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CURIHAM: Centro Universitario Rosario de Investigaciones Hidroambientales Facultad de Ciencias Exactas, Ingeniería y Agrimensura. Universidad Nacional de Rosario Director: Dr. Ing. Hernán Stenta Riobamba 245 bis, 2000 Rosario (Santa Fe), Argentina. Telefa
2025
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| Materias: | |
| Acceso en línea: | https://cuadernosdelcuriham.unr.edu.ar/index.php/CURIHAM/article/view/274 |
| Aporte de: |
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I15-R229-article-274 |
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ojs |
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Universidad Nacional de Rosario |
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I-15 |
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R-229 |
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Cuadernos del CURIHAM |
| language |
Español |
| format |
Artículo revista |
| topic |
Acuífero Pampeano Efecto de Contra-ion Desorción Competitiva con HCO3- Fuerza Iónica Loess Pampean Aquifer Counter-ion Effect Competitive Desorption by HCO3- Ionic Strenght Loess |
| spellingShingle |
Acuífero Pampeano Efecto de Contra-ion Desorción Competitiva con HCO3- Fuerza Iónica Loess Pampean Aquifer Counter-ion Effect Competitive Desorption by HCO3- Ionic Strenght Loess Maino , Matías Dietrich , Sebastián Ríos , Greta Weinzettel , Pablo Arsenic-realising hydrogeochemical processes in the Claromecó creek basin, Buenos Aires Province, Argentina |
| topic_facet |
Acuífero Pampeano Efecto de Contra-ion Desorción Competitiva con HCO3- Fuerza Iónica Loess Pampean Aquifer Counter-ion Effect Competitive Desorption by HCO3- Ionic Strenght Loess |
| author |
Maino , Matías Dietrich , Sebastián Ríos , Greta Weinzettel , Pablo |
| author_facet |
Maino , Matías Dietrich , Sebastián Ríos , Greta Weinzettel , Pablo |
| author_sort |
Maino , Matías |
| title |
Arsenic-realising hydrogeochemical processes in the Claromecó creek basin, Buenos Aires Province, Argentina |
| title_short |
Arsenic-realising hydrogeochemical processes in the Claromecó creek basin, Buenos Aires Province, Argentina |
| title_full |
Arsenic-realising hydrogeochemical processes in the Claromecó creek basin, Buenos Aires Province, Argentina |
| title_fullStr |
Arsenic-realising hydrogeochemical processes in the Claromecó creek basin, Buenos Aires Province, Argentina |
| title_full_unstemmed |
Arsenic-realising hydrogeochemical processes in the Claromecó creek basin, Buenos Aires Province, Argentina |
| title_sort |
arsenic-realising hydrogeochemical processes in the claromecó creek basin, buenos aires province, argentina |
| description |
A hydrogeochemical study was performed in the Claromecó Creek basin, Buenos Aires province. This region is featured by groundwaters with arsenic (As) concentrantions that exceed the allowed provincial limit of 50 ppb. Based on the chemical analysis of samples distributed all along the basin and extracted from shallowest Pampean aquifer, the main hydrogeochemical processes were addressed. Such processes were interpreted mainly from bivariate plots and multivariate analysis. Samples were divided into three groups. Group 1 is the one with the lowest concentrations of As whereas group 2 is characterized por high As concentrations, high pH and low concentrations of Na+ y HCO3-. Finally, group 3 also presents high As contents but lower pH and high values of Na+ y HCO3-. The processes that promote the release of As from the sediments in this aquifers were interpreted as the counter-ion effect, the competitive desorption by HCO3- and the ionic strength. These processes act with different intensity in different parts of the basin but simultaneously. This fact confirms the complexity of studying As release in this type of environment. |
| publisher |
CURIHAM: Centro Universitario Rosario de Investigaciones Hidroambientales Facultad de Ciencias Exactas, Ingeniería y Agrimensura. Universidad Nacional de Rosario Director: Dr. Ing. Hernán Stenta Riobamba 245 bis, 2000 Rosario (Santa Fe), Argentina. Telefa |
| publishDate |
2025 |
| url |
https://cuadernosdelcuriham.unr.edu.ar/index.php/CURIHAM/article/view/274 |
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2025-11-04T05:02:08Z |
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2025-11-04T05:02:08Z |
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1847834735746744320 |
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I15-R229-article-2742025-09-16T11:51:37Z Arsenic-realising hydrogeochemical processes in the Claromecó creek basin, Buenos Aires Province, Argentina Procesos hidrogeoquímicos de liberación de arsénico en la cuenca del arroyo Claromecó, Provincia de Buenos Aires Maino , Matías Dietrich , Sebastián Ríos , Greta Weinzettel , Pablo Acuífero Pampeano Efecto de Contra-ion Desorción Competitiva con HCO3- Fuerza Iónica Loess Pampean Aquifer Counter-ion Effect Competitive Desorption by HCO3- Ionic Strenght Loess A hydrogeochemical study was performed in the Claromecó Creek basin, Buenos Aires province. This region is featured by groundwaters with arsenic (As) concentrantions that exceed the allowed provincial limit of 50 ppb. Based on the chemical analysis of samples distributed all along the basin and extracted from shallowest Pampean aquifer, the main hydrogeochemical processes were addressed. Such processes were interpreted mainly from bivariate plots and multivariate analysis. Samples were divided into three groups. Group 1 is the one with the lowest concentrations of As whereas group 2 is characterized por high As concentrations, high pH and low concentrations of Na+ y HCO3-. Finally, group 3 also presents high As contents but lower pH and high values of Na+ y HCO3-. The processes that promote the release of As from the sediments in this aquifers were interpreted as the counter-ion effect, the competitive desorption by HCO3- and the ionic strength. These processes act with different intensity in different parts of the basin but simultaneously. This fact confirms the complexity of studying As release in this type of environment. Se realizó un estudio hidrogeoquímico regional en la cuenca del Arroyo Claromecó, Provincia de Buenos Aires. Esta región se caracteriza por la presencia de aguas subterráneas con concentraciones de arsénico (As) que exceden, incluso, el límite provincial de 50 ppb establecido por la ley 11820. A partir de análisis químicos de las muestras tomadas a lo largo de toda la cuenca del acuífero Pampeano, se interpretaron los principales procesos hidrogeoquímicos actuantes. Dicha interpretación se realizó a partir de diferentes gráficos bivariados complementados con análisis multivariados, de lo cual se desprendió la siguiente agrupación de muestras: el grupo 1 quedó conformado por aquellas muestras con bajas concentraciones de As, mientras que el grupo 2 se caracteriza por altas concentraciones de As, altos pH pero bajos valores de Na+ y HCO3-. Finalmente, el grupo 3 también presenta altas concentraciones de As, acompañado de altos niveles de Na+ y HCO3-, pero bajos pH. Se interpretó que los principales procesos que intervienen en la liberación de As son el efecto de contra-ion, la desorción competitiva con HCO3- y la fuerza iónica. Estos procesos actúan de manera desigual en las diferentes partes de la cuenca pero en forma simultánea, lo que sigue confirmando la complejidad de la movilidad del As en el agua subterránea del acuífero Pampeano. CURIHAM: Centro Universitario Rosario de Investigaciones Hidroambientales Facultad de Ciencias Exactas, Ingeniería y Agrimensura. Universidad Nacional de Rosario Director: Dr. Ing. Hernán Stenta Riobamba 245 bis, 2000 Rosario (Santa Fe), Argentina. Telefa 2025-03-28 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf text/html https://cuadernosdelcuriham.unr.edu.ar/index.php/CURIHAM/article/view/274 10.35305/curiham.v30i.e07 Cuadernos del CURIHAM is a half-year publication of the Centro Universitario de Rosario of hydro-environmental research directed by Adelma Mancinelli. It is dedicated to spreading the results of basic and applied research as well as technological innovations on the realm of hidro-environmental issues. It may include field study results, interdisciplinary studies or studies on the state of art on the field: basic hydraulics, fluvial and hydrodinamics, superficial and underground hydrology, urban and stochastic hydrology, planning and management of hydric resources, environmental evaluation, pollution and quality of the water, politics and water legislation, regional hydro-environmental management, hydraulic construction, methods and techniques and everything related to hydro-environmental sciences.; Vol. 30 (2024); 07 Cuadernos del CURIHAM; Vol. 30 (2024); 07 2683-8168 spa https://cuadernosdelcuriham.unr.edu.ar/index.php/CURIHAM/article/view/274/329 https://cuadernosdelcuriham.unr.edu.ar/index.php/CURIHAM/article/view/274/328 https://creativecommons.org/licenses/by-nc-sa/4.0 |