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dc.contributor.author Rojas Fabro, Annette Yabel
dc.contributor.author Pacheco Avila, Julia Guadalupe
dc.contributor.author Esteller Alberich, María Vicenta
dc.contributor.author Cabrera Sansores, Santos Armando
dc.contributor.author Miller Alonso, Camargo-Valero
dc.date.accessioned 2016-10-18T18:18:39Z
dc.date.available 2016-10-18T18:18:39Z
dc.date.issued 2015-12
dc.identifier.citation Rojas A. Y.; Pacheco Avila, G. J.; Esteller Alberich, M.V.; Cabrera Sansores, S.A.; Camargo-Valero M.A. (2015) Spatial distribution of nitrate health risk associated with groundwater use as drinking water in Merida, Mexico. Applied Geography 65: 49-57 es
dc.identifier.issn 0143-6228
dc.identifier.uri http://hdl.handle.net/20.500.11799/58672
dc.description.abstract Water containing nitrate levels above 45 mg/l is not recommended for human consumption and its prolonged intake is associated with various health conditions. In Merida city, Mexico, the only source for water supply is a karstic aquifer, but the absence of sewerage and drainage networks makes it highly vulnerable to anthropogenic contamination. In this work, the concentration and spatial distribution of nitrate in the Merida's karstic aquifer were assessed by statistical and geostatistical techniques. The sources of nitrate contamination were tracked by making statistical correlations between nitrate concentrations and key ions; the potential risk to human health was also estimated by using the Hazard Index (HI). A total of 177 groundwater samples were collected from the four water supply systems serving Merida, during 2012 and 2013. Nitrate concentrations from collected samples varied between 15.51 and 70.61 mg/l, with maximum and minimum concentrations per sampling point ranging from 47.47 to 70.61 mg/l and from 15.51 to 17.32 mg/l, respectively. Significant positive correlations (P < 0.05) between nitrates and chlorides, sulphates and potassium were found, which may indicate potential contamination from domestic wastewater and agricultural activities. The spatial distribution of nitrate concentrations in the aquifer revealed an increase in nitrates following a trajectory SoutheNorth West, towards central and northwestern zones within Merida Metropolitan Area. From the health risk analysis, it was found that infants exposed at current nitrate levels are at a higher risk (HIMAX ¼ 1.40) than adults (HR < 1.0) and therefore, there is a clear need for implementing effective strategies to protect groundwater quality and to better manage and control nitrate pollution sources. es
dc.language.iso eng es
dc.publisher Applied Geography es
dc.relation.ispartofseries Vol.;65
dc.rights openAccess es
dc.subject Merida's karstic aquifer es
dc.subject nitrate contamination es
dc.subject health risk es
dc.title Spatial distribution of nitrate health risk associated with groundwater use as drinking water in Merida, Mexico es
dc.type Artículo es
dc.provenance Científica es
dc.road Dorada es


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  • Título
  • Spatial distribution of nitrate health risk associated with groundwater use as drinking water in Merida, Mexico
  • Autor
  • Rojas Fabro, Annette Yabel
  • Pacheco Avila, Julia Guadalupe
  • Esteller Alberich, María Vicenta
  • Cabrera Sansores, Santos Armando
  • Miller Alonso, Camargo-Valero
  • Fecha de publicación
  • 2015-12
  • Editor
  • Applied Geography
  • Tipo de documento
  • Artículo
  • Palabras clave
  • Merida's karstic aquifer
  • nitrate contamination
  • health risk
  • Los documentos depositados en el Repositorio Institucional de la Universidad Autónoma del Estado de México se encuentran a disposición en Acceso Abierto bajo la licencia Creative Commons: Atribución-NoComercial-SinDerivar 4.0 Internacional (CC BY-NC-ND 4.0)

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