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Arsenic contamination in irrigation water, agricultural soil and maize crop from an abandoned smelter site in Matehuala, Mexico
ESTHER AURORA RUIZ HUERTA
ALONSO DE LA GARZA VARELA
JUAN MIGUEL GOMEZ BERNAL
José Juan Francisco Castillo Rivera
MIGUEL AVALOS BORJA
Bhaskar Sen Gupta
NADIA VALENTINA MARTINEZ VILLEGAS
En Embargo
31-12-2019
Atribución-NoComercial-SinDerivadas
https://doi.org/10.1016/j.jhazmat.2017.06.041
Zea mays L.
Arsenic
Reduced growth
Calcite
Gypsum
"Mobility of Arsenic (As) from metallurgical wastes in Matehuala, Mexico has been accounted for ultra-high concentration of As in water (4.8–158 mg/L) that is used for recreational purposes as well as cultivation of maize. In this study, we (i) measured As concentrations in soils irrigated with this water, (ii) investigated the geochemical controls of available As, and (iii) measured bioaccumulation of As in maize. Water, soil, and maize plant samples were collected from 3 different plots to determine As in environmental matrices as well as water soluble As in soils. Soil mineralogy was determined by X-ray diffraction analysis. Bioaccumulation of As in maize plants was estimated from the bioconcentration and translocation factors. We recorded As built-up in agricultural soils to the extent of 172 mg/kg, and noted that this As is highly soluble in water (30% on average). Maize crops presented high bioaccumulation, up to 2.5 times of bioconcentration and 45% of translocation. Furthermore, we found that water extractable As was higher in soils rich in calcite, while it was lower in soils containing high levels of gypsum, but As bioconcentration showed opposite trend. Results from this study show that irrigation with As rich water represents a significant risk to the population consuming contaminated crops."
Elsevier
2017
Artículo
Esther Aurora Ruíz-Huerta, Alonso de la Garza Varela, Juan Miguel Gómez-Bernal, Francisco Castillo, Miguel Avalos-Borja, Bhaskar SenGupta, Nadia Martínez-Villegas, Arsenic contamination in irrigation water, agricultural soil and maize crop from an abandoned smelter site in Matehuala, Mexico, Journal of Hazardous Materials, Volume 339, 2017, Pages 330-339.
ECOLOGÍA VEGETAL
Versión aceptada
acceptedVersion - Versión aceptada
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