Resumo

JUNEZ-FERREIRA, Hugo E.; BAUTISTA-CAPETILLO, Carlos F.  e  GONZALEZ-TRINIDAD, Julián. Spatial geostatistical analysis of four major ions and arsenic in the Calera Aquifer, Zacatecas. Tecnol. cienc. agua [online]. 2013, vol.4, n.1, pp.179-185. ISSN 2007-2422.

Knowing the spatial distribution and temporal evolution of the quantity and quality of groundwater is essential to aquifer management. This paper presents the results of a geostatistical spatial analysis carried out with four major ions (calcium, chloride, sodium and sulfate) and arsenic (chosen for its highly toxic effect), which are considered indicators of water quality in the Calera aquifer in Zacatecas, Mexico. The spatial configurations obtained complement the existing conceptual model of the functioning of water in the aquifer. It was observed that, in general, groundwater in the area is of good quality according to the values established by the NOM-127-SSA1-1994.

Palavras-chave : geostatistics; semivariogram; major ions; arsenic; water quality; aquifer; Calera; Zacatecas.