Origin of arsenic in the alluvial aquifer of the Region Lagunera, States of Coahuila and Durango, Mexico

Persistent Link:
http://hdl.handle.net/10150/191335
Title:
Origin of arsenic in the alluvial aquifer of the Region Lagunera, States of Coahuila and Durango, Mexico
Author:
Gutierrez-Ojeda, Carlos.
Issue Date:
1995
Publisher:
The University of Arizona.
Rights:
Copyright © is held by the author. Digital access to this material is made possible by the University Libraries, University of Arizona. Further transmission, reproduction or presentation (such as public display or performance) of protected items is prohibited except with permission of the author.
Abstract:
This thesis integrates work performed independently by previous investigators concerning the origin, mineralogy, occurrence, epidemiology, speciation and distribution of arsenic in the RegiOn Lagunera alluvial aquifer, northern Mexico. Geochemical modeling and literature data are used to evaluate its speciation, origin, transport, likely exposure pathways and the processes that may be affecting the arsenic species levels. The results show that arsenic is present primarily as arsenate, HAs04 2- . It was probably transported from the areas of volcanic activity located in the upper catchment regions of the rivers and within the Region Lagunera. Adsorptiondesorption of arsenic on ferric hydroxides and evaporation of the surface waters before infiltration are considered to be the main phenomena responsible for the elevated groundwater arsenic concentrations (range of 0.003-0.624 mg/1). Except for the possible dissolution of calcimagnesic arsenates, mineralogic controls appear to have no effect on arsenic solubility while hydrothermal processes may be occurring in isolated areas.
Type:
Thesis-Reproduction (electronic); text
LCSH Subjects:
Hydrology.; Arsenic -- Environmental aspects -- Mexico -- Laguna Region.; Groundwater -- Pollution -- Mexico -- Laguna Region.
Degree Name:
M.S.
Degree Level:
masters
Degree Program:
Hydrology and Water Resources; Graduate College
Degree Grantor:
University of Arizona
Committee Chair:
Bassett, R. L.

Full metadata record

DC FieldValue Language
dc.language.isoenen_US
dc.titleOrigin of arsenic in the alluvial aquifer of the Region Lagunera, States of Coahuila and Durango, Mexicoen_US
dc.creatorGutierrez-Ojeda, Carlos.en_US
dc.contributor.authorGutierrez-Ojeda, Carlos.en_US
dc.date.issued1995en_US
dc.publisherThe University of Arizona.en_US
dc.rightsCopyright © is held by the author. Digital access to this material is made possible by the University Libraries, University of Arizona. Further transmission, reproduction or presentation (such as public display or performance) of protected items is prohibited except with permission of the author.en_US
dc.description.abstractThis thesis integrates work performed independently by previous investigators concerning the origin, mineralogy, occurrence, epidemiology, speciation and distribution of arsenic in the RegiOn Lagunera alluvial aquifer, northern Mexico. Geochemical modeling and literature data are used to evaluate its speciation, origin, transport, likely exposure pathways and the processes that may be affecting the arsenic species levels. The results show that arsenic is present primarily as arsenate, HAs04 2- . It was probably transported from the areas of volcanic activity located in the upper catchment regions of the rivers and within the Region Lagunera. Adsorptiondesorption of arsenic on ferric hydroxides and evaporation of the surface waters before infiltration are considered to be the main phenomena responsible for the elevated groundwater arsenic concentrations (range of 0.003-0.624 mg/1). Except for the possible dissolution of calcimagnesic arsenates, mineralogic controls appear to have no effect on arsenic solubility while hydrothermal processes may be occurring in isolated areas.en_US
dc.description.notehydrology collectionen_US
dc.typeThesis-Reproduction (electronic)en_US
dc.typetexten_US
dc.subject.lcshHydrology.en_US
dc.subject.lcshArsenic -- Environmental aspects -- Mexico -- Laguna Region.en_US
dc.subject.lcshGroundwater -- Pollution -- Mexico -- Laguna Region.en_US
thesis.degree.nameM.S.en_US
thesis.degree.levelmastersen_US
thesis.degree.disciplineHydrology and Water Resourcesen_US
thesis.degree.disciplineGraduate Collegeen_US
thesis.degree.grantorUniversity of Arizonaen_US
dc.contributor.chairBassett, R. L.en_US
dc.contributor.committeememberWilson, Gray L.en_US
dc.contributor.committeememberLeonhart, Leoen_US
dc.identifier.oclc218812927en_US
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