2016
DOI: 10.1016/j.scitotenv.2015.10.006
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Groundwater chemical baseline values to assess the Recovery Plan in the Matanza-Riachuelo River basin, Argentina

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Cited by 50 publications
(29 citation statements)
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“…Reduction of agricultural area (Figure 4) and restrictions on the use of chemical fertilizers [45] contributed to these low concentrations. Denitrification has a key role in nitrate attenuation in shallow aquifers, because it greatly reduces the nitrate concentrations in water [5,46,47]. We suspected that the fresh water recharging mainly from precipitation had some dilution effect on the groundwater concentration of NO 3 -N, and this was consistent with the findings of Zhai et al [48].…”
Section: Groundwater Geochemical Characteristicssupporting
confidence: 87%
See 1 more Smart Citation
“…Reduction of agricultural area (Figure 4) and restrictions on the use of chemical fertilizers [45] contributed to these low concentrations. Denitrification has a key role in nitrate attenuation in shallow aquifers, because it greatly reduces the nitrate concentrations in water [5,46,47]. We suspected that the fresh water recharging mainly from precipitation had some dilution effect on the groundwater concentration of NO 3 -N, and this was consistent with the findings of Zhai et al [48].…”
Section: Groundwater Geochemical Characteristicssupporting
confidence: 87%
“…In many developing countries, where agriculture is a fundamental part of the economy [2], rapid industrialization is resulting in greater pressure on water resources [3,4]. Groundwater has been an important source of water supply because of its abundance, stable quality, and the relatively low cost of exploitation [5][6][7].…”
Section: Introductionmentioning
confidence: 99%
“…En relación a los contenidos de elementos traza, no se observaron variaciones relacionadas a la presencia del corral de engorde, registrándose concentraciones similares a las obtenidas en otros sectores de la cuenca estudiada (Borzi et al, 2018). Al igual que como ocurre a escala regional dentro del acuífero freático alojado en los sedimentos loessicos (Heredia & Cirelli, 2009;Zabala et al, 2016), el As registró valores por encima del límite de potabilidad. El V fue otro elemento que presentó una elevada concentración, no obstante, si bien se ha reportado que este elemento en exceso puede ser perjudicial para la salud del ganado (Gummow et al, 2005), no existen límites internacionales sugeridos por la Organización Mundial de la Salud en cuanto al agua de consumo humano (OMS, 2008).…”
Section: Discussionunclassified
“…Respecto al contenido de nitrato, las menores concentraciones se registran en las zonas de intercordón (subambiente de planicie con cordones de conchilla) y marisma, siendo estos valores similares a los atribuido al fondo químico en áreas adyacentes (Zabala et al, 2016). Los sedimentos superficiales (limos arcillosos) vinculados a los intercordones y marisma ocasionan la recarga rechazada y la acumulación de agua en superficie favoreciendo a los procesos de desnitrificación o volatilización que disminuyen la concentración de nitrato.…”
Section: Discussionunclassified