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Abstract:

Chromium (Cr) is one of the main pollutants affecting both soil and groundwater systems in some areas within the Matanza-Riachuelo River Basin (MRB) in Argentina. The particular site of study is located near an abandoned tannery and chemical industry facilities. Cr toxicity and mobility depend on its oxidation state: Cr(VI) is an active carcinogen, more soluble and mobile, whereas Cr(III) shows low toxicity and solubility, precipitating in the form of amorphous Cr(OH)3(am). This paper is devoted to elucidate the main key controls on the Cr(VI)-plume transport at this site using reactive transport (RT) modelling and uncertainty quantification analysis tools. RT results suggest a Cr source term on the surface to explain the observed Cr concentrations in both Pampeano and Puelche aquifers. UQ analysis indicates that the Cr(VI) concentrations in both aquifers are sensitive to hydraulic connectivity between them, the reaction reduction rates Cr(VI)-Cr(III) and the organic matter contents. © 2018 Inderscience Enterprises Ltd.

Registro:

Documento: Artículo
Título:Applying reactive transport modelling in a chromium-contaminated site in the Matanza-Riachuelo basin, Buenos Aires, Argentina
Autor:Ceballos, E.; Bea, S.A.; Sanci, R.
Filiación:CONICET-IHLLA, República de Italia 780, Azul, BA, C.C., 47 (B7300), Argentina
CONICET-INGEIS, Intendente Güiraldes 2160, Ciudad Universitaria, CABA, (C1428EHA), Argentina
Palabras clave:Groundwater; Hexavalent chromium; Matanza-Riachuelo river basin; Reactive transport modelling
Año:2018
Volumen:9
Número:1
Página de inicio:16
Página de fin:35
DOI: http://dx.doi.org/10.1504/IJENVH.2018.090861
Título revista:International Journal of Environment and Health
Título revista abreviado:Int. J. Environ. Health
ISSN:17434955
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_17434955_v9_n1_p16_Ceballos

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Citas:

---------- APA ----------
Ceballos, E., Bea, S.A. & Sanci, R. (2018) . Applying reactive transport modelling in a chromium-contaminated site in the Matanza-Riachuelo basin, Buenos Aires, Argentina. International Journal of Environment and Health, 9(1), 16-35.
http://dx.doi.org/10.1504/IJENVH.2018.090861
---------- CHICAGO ----------
Ceballos, E., Bea, S.A., Sanci, R. "Applying reactive transport modelling in a chromium-contaminated site in the Matanza-Riachuelo basin, Buenos Aires, Argentina" . International Journal of Environment and Health 9, no. 1 (2018) : 16-35.
http://dx.doi.org/10.1504/IJENVH.2018.090861
---------- MLA ----------
Ceballos, E., Bea, S.A., Sanci, R. "Applying reactive transport modelling in a chromium-contaminated site in the Matanza-Riachuelo basin, Buenos Aires, Argentina" . International Journal of Environment and Health, vol. 9, no. 1, 2018, pp. 16-35.
http://dx.doi.org/10.1504/IJENVH.2018.090861
---------- VANCOUVER ----------
Ceballos, E., Bea, S.A., Sanci, R. Applying reactive transport modelling in a chromium-contaminated site in the Matanza-Riachuelo basin, Buenos Aires, Argentina. Int. J. Environ. Health. 2018;9(1):16-35.
http://dx.doi.org/10.1504/IJENVH.2018.090861