Caracterización hidrogeoquímica en La cuenca hidrológica El Carrizal, Baja California Sur, México
Por:
Velazquez-Pedroza, Karen, Magalli Murillo-Jimenez, Janette, Judith Marmolejo-Rodriguez, Ana, Hiparco Nava-Sanchez, Enrique, Abelardo Morales-Puente, Pedro, Wurl, Jobst, Hernandez-Perez, Eliseo
Publicada:
1 ene 2019
Resumen:
The El Carrizal hydrological basin is located in the southwest zone of the state of Baja California Sur, Mexico. The El Triunfo-San Antonio mining district, where mine tailings are located with high concentrations of potentially toxic elements (PTEs), is located in the higher part of the basin. The demographic growth of the city of La Paz has pushed to transfer water from this basin, so the aim of this work was to characterize the hydrogeochemical composition of groundwater and to evaluate the water quality for human consumption. In the year 2015, 19 wells in the El Carrizal basin and 11 wells in the basins of La Paz, La Matanza and Santa Inés-La Muela were sampled during the dry (April-May) and rainy (November-December) seasons. The physicochemical parameters were measured in situ, the major ions (Na + , K + , Ca 2+ , Mg 2+ , Cl - , SO 4 2- , HCO 3 - and NO 3 - ) and PTEs (As, Cd) were determined in the laboratory. The results indicated that the types of water are mainly associated with the lithology of the area in the upper part of the El Carrizal basin, and that the type of water that predominates contains Ca 2+ and HCO 3 - . In the study area, 67 % of the wells in the dry season exceeded the concentration limit of As (10 µg/L). A continuous monitoring of these groundwater wells is necessary to support the supply programs for the population. © 2019, Centro de Ciencias de la Atmosfera, UNAM. All rights reserved.
Filiaciones:
Velazquez-Pedroza, Karen:
Inst Politecn Nacl, Dept Oceanol, Ctr Interdisciplinario Ciencias Marinas, Av IPN S-N, La Paz 23096, Baja California, Mexico
Centro Interdisciplinario de Ciencias Marinas, Departamento de Oceanología, Instituto Politécnico Nacional, Av. IPN s/n, Col. Playa Palo de Santa Rita, La Paz, Baja California Sur, 23096, Mexico
Magalli Murillo-Jimenez, Janette:
Inst Politecn Nacl, Dept Oceanol, Ctr Interdisciplinario Ciencias Marinas, Av IPN S-N, La Paz 23096, Baja California, Mexico
Judith Marmolejo-Rodriguez, Ana:
Inst Politecn Nacl, Dept Oceanol, Ctr Interdisciplinario Ciencias Marinas, Av IPN S-N, La Paz 23096, Baja California, Mexico
Hiparco Nava-Sanchez, Enrique:
Inst Politecn Nacl, Dept Oceanol, Ctr Interdisciplinario Ciencias Marinas, Av IPN S-N, La Paz 23096, Baja California, Mexico
Abelardo Morales-Puente, Pedro:
Univ Nacl Autonoma Mexico, Inst Geol, Dept Geoquim, Ciudad De Mexico 04510, Mexico
Wurl, Jobst:
Univ Autonoma Baja California Sur, Dept Acad Ciencias Tierra, Km 5-5 Carretera Sur, La Paz 23080, Baja California, Mexico
Departamento Académico de Ciencias de la Tierra, Universidad Autónoma de Baja California Sur, km 5.5 Carretera al Sur, La Paz, Baja California Sur 23080, Mexico
Hernandez-Perez, Eliseo:
Univ Nacl Autonoma Mexico, Ctr Geociencias, Dept Hidrogeoquim, Campus Juriquilla,Blvd Juriquilla 3001, Queretaro 76230, Mexico
Departamento de Hidrogeoquímica, Centro de Geociencias, Universidad Nacional Autónoma de México, Campus Juriquilla, Blvd. Juriquilla 3001Querétaro 76230, Mexico
Departamento de Geoquímica, Instituto de Geología, Universidad Nacional Autónoma de México, Ciudad Universitaria, Ciudad de México, 04510, Mexico
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